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NARROW
Format
Article Type
Journal
Publisher
Section
GeoRef Subject
-
all geography including DSDP/ODP Sites and Legs
-
Africa
-
Southern Africa
-
South Africa (1)
-
-
West Africa
-
Ghana (1)
-
Niger (1)
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-
-
Altiplano (1)
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Antarctica (1)
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Arctic Ocean
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Norwegian Sea (1)
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Arctic region
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Greenland
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East Greenland (1)
-
-
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Asia
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Far East
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China
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Sichuan China (1)
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-
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Himalayas (1)
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Indian Peninsula
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Bangladesh (1)
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Bengal (1)
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India
-
Karnataka India
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Kolar Gold Fields India (1)
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Pakistan (1)
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-
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Atlantic Ocean
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North Atlantic
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Gulf of Mexico (3)
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North Sea (1)
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Australasia
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Australia
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New South Wales Australia (1)
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Northern Territory Australia
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Pine Creek Geosyncline (1)
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Queensland Australia (1)
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Surat Basin (1)
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Tanami Desert (1)
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New Zealand (1)
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Bald Mountain (1)
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Bell Creek Field (1)
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Black Hills (77)
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Bowen Basin (1)
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Canada
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Arctic Archipelago (1)
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Eastern Canada
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Ontario
-
Lanark County Ontario
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Perth Ontario (1)
-
-
Sudbury Ontario (1)
-
-
-
Nunavut
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Ellesmere Island (1)
-
-
Queen Elizabeth Islands
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Ellesmere Island (1)
-
-
Western Canada
-
Alberta
-
Alberta Basin (2)
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Red Deer River valley (1)
-
-
British Columbia (1)
-
Manitoba
-
Bernic Lake (2)
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Tanco Pegmatite (1)
-
-
Red Deer River (1)
-
Saskatchewan (12)
-
Yukon Territory (1)
-
-
-
Caribbean region (1)
-
Casper Mountain (2)
-
Colorado River (1)
-
Commonwealth of Independent States
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Russian Federation
-
Murmansk Russian Federation
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Kola Peninsula (1)
-
-
-
-
Crazy Mountains (1)
-
Europe
-
Alps
-
Eastern Alps
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Austroalpine Zone (1)
-
-
Swiss Alps (1)
-
-
Central Europe
-
Germany (1)
-
Switzerland
-
Swiss Alps (1)
-
-
-
Murmansk Russian Federation
-
Kola Peninsula (1)
-
-
Southern Europe
-
Iberian Peninsula
-
Portugal
-
Panasqueira Portugal (1)
-
-
Spain
-
Ebro Basin (1)
-
-
-
-
Western Europe
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Scandinavia
-
Norway (2)
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Sweden (1)
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-
United Kingdom
-
Great Britain
-
England
-
Isle of Wight England (1)
-
-
-
-
-
-
Front Range (45)
-
Granite Mountains (6)
-
Green River basin (14)
-
Homestake Mine (5)
-
Indian Ocean
-
Arabian Sea
-
Persian Gulf (1)
-
-
-
Iron Mountain (1)
-
Lake Nipissing (1)
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Madison Range (1)
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Mammoth Cave (1)
-
Maverick Basin (1)
-
Mexico
-
Sierra Madre Occidental (1)
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Sonora Mexico (1)
-
-
North America
-
Appalachian Basin (6)
-
Appalachians (2)
-
Basin and Range Province (7)
-
Canadian Shield
-
Churchill Province
-
Hearne Province (1)
-
-
Superior Province (4)
-
-
Great Lakes (1)
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Great Lakes region (1)
-
Great Plains
-
Northern Great Plains (5)
-
Southern Great Plains (1)
-
-
Gulf Coastal Plain (12)
-
Michigan Basin (2)
-
Missouri River basin (1)
-
North American Cordillera (2)
-
Pedregosa Basin (1)
-
Rio Grande Rift (10)
-
Rocky Mountains
-
Central Rocky Mountains (5)
-
Northern Rocky Mountains (5)
-
Southern Rocky Mountains (14)
-
U. S. Rocky Mountains
-
Absaroka Range
-
Beartooth Mountains (1)
-
-
Bighorn Mountains (16)
-
Laramie Mountains (37)
-
Medicine Bow Mountains (27)
-
Owl Creek Mountains (3)
-
Sangre de Cristo Mountains (2)
-
Sawatch Range (1)
-
Uinta Mountains (1)
-
Wet Mountains (3)
-
Wind River Range (6)
-
-
-
Rocky Mountains foreland (10)
-
Saint Lawrence Valley (1)
-
Sweetgrass Arch (2)
-
Transcontinental Arch (4)
-
Western Canada Sedimentary Basin (1)
-
Western Interior
-
Western Interior Seaway (22)
-
-
Western Overthrust Belt (2)
-
Williston Basin (19)
-
-
North German Basin (1)
-
Pacific Ocean
-
North Pacific
-
Northwest Pacific
-
Shatsky Rise (1)
-
-
-
West Pacific
-
Northwest Pacific
-
Shatsky Rise (1)
-
-
-
-
Permian Basin (5)
-
Puna (1)
-
Raton Basin (7)
-
Rattlesnake Hills (1)
-
Rio Grande (1)
-
Salt Creek (1)
-
San Juan Basin (13)
-
Sand Hills (2)
-
Sand Wash Basin (2)
-
Santa Maria Basin (1)
-
Sierra Madre (6)
-
Silo Field (2)
-
South America
-
Andes (1)
-
Brazil
-
Para Brazil (1)
-
-
-
Southern Ocean
-
Ross Sea
-
McMurdo Sound (1)
-
-
-
Sydney Basin (1)
-
United States
-
Alaska (1)
-
Albuquerque Basin (1)
-
Anadarko Basin (1)
-
Ardmore Basin (1)
-
Arizona
-
Mogollon Rim (1)
-
Pima County Arizona (1)
-
Yavapai County Arizona (1)
-
-
Arkansas
-
Garland County Arkansas (1)
-
-
Arkansas River valley (1)
-
Bighorn Basin (11)
-
Black Warrior Basin (1)
-
California
-
Inyo County California (1)
-
Kern County California (1)
-
Los Angeles Basin (1)
-
-
Cedar Creek Anticline (2)
-
Central Basin Platform (1)
-
Cheyenne Belt (14)
-
Colorado
-
Adams County Colorado (2)
-
Baca County Colorado (1)
-
Boulder County Colorado
-
Boulder Colorado (11)
-
-
Cache La Poudre River (1)
-
Chaffee County Colorado (1)
-
Clear Creek County Colorado (4)
-
Colorado mineral belt (2)
-
Custer County Colorado (2)
-
Denver County Colorado
-
Denver Colorado (2)
-
-
Douglas County Colorado (2)
-
Eagle County Colorado (1)
-
El Paso County Colorado
-
Colorado Springs Colorado (1)
-
-
Fremont County Colorado
-
Canon City Colorado (2)
-
-
Gilpin County Colorado (2)
-
Grand County Colorado (9)
-
Gunnison County Colorado (2)
-
Jackson County Colorado (9)
-
Jefferson County Colorado
-
Golden Colorado (1)
-
-
Lake County Colorado (1)
-
Larimer County Colorado
-
Loveland Colorado (1)
-
-
Logan County Colorado (5)
-
Mesa County Colorado (1)
-
Morgan County Colorado (5)
-
Park County Colorado (2)
-
Piceance Basin (2)
-
Pitkin County Colorado (2)
-
Pueblo County Colorado
-
Pueblo Colorado (2)
-
-
Rocky Mountain National Park (7)
-
Routt County Colorado (6)
-
Saguache County Colorado (1)
-
San Juan volcanic field (1)
-
San Miguel County Colorado (1)
-
Sawatch Range (1)
-
Sedgwick County Colorado (1)
-
Summit County Colorado (1)
-
Teller County Colorado (2)
-
Washington County Colorado (3)
-
Wattenberg Field (16)
-
Weld County Colorado
-
Greeley Colorado (4)
-
-
Wet Mountains (3)
-
Yuma County Colorado (3)
-
-
Colorado Lineament (3)
-
Colorado Plateau (12)
-
Columbia Plateau (1)
-
Connecticut
-
Fairfield County Connecticut (1)
-
-
Delaware Basin (2)
-
Denver Basin (105)
-
Eastern U.S. (1)
-
High Plains Aquifer (2)
-
Hugoton Embayment (1)
-
Idaho
-
Snake River plain (3)
-
-
Illinois (1)
-
Illinois Basin (2)
-
Iowa (3)
-
Kansas
-
Barton County Kansas (1)
-
Crawford County Kansas (1)
-
Ellis County Kansas (1)
-
Ellsworth County Kansas (1)
-
Hamilton County Kansas (2)
-
Lincoln County Kansas (1)
-
Meade County Kansas (1)
-
Ottawa County Kansas (1)
-
Republic County Kansas (1)
-
Russell County Kansas (3)
-
Saline County Kansas (1)
-
Sherman County Kansas (1)
-
-
Kentucky
-
Edmonson County Kentucky (1)
-
-
Little Missouri River basin (1)
-
Llano Estacado (1)
-
Louisiana
-
Atchafalaya Bay (1)
-
-
Madison Aquifer (4)
-
Michigan (1)
-
Midcontinent (8)
-
Midwest (4)
-
Minnesota
-
Pennington County Minnesota (1)
-
-
Mississippi Valley
-
Upper Mississippi Valley (2)
-
-
Missouri (2)
-
Mojave Desert (2)
-
Montana
-
Beaverhead County Montana (1)
-
Big Horn County Montana (1)
-
Carter County Montana (5)
-
Crazy Mountains Basin (1)
-
Dawson County Montana (2)
-
Fallon County Montana (2)
-
Garfield County Montana (5)
-
Hill County Montana (1)
-
Madison County Montana (1)
-
McCone County Montana (1)
-
Powder River County Montana (5)
-
Rosebud County Montana (3)
-
Sweet Grass County Montana (1)
-
Toole County Montana (1)
-
-
Moxa Arch (1)
-
Mullen Creek-Nash Fork shear zone (2)
-
Nebraska
-
Antelope County Nebraska (1)
-
Banner County Nebraska (8)
-
Box Butte County Nebraska (3)
-
Brown County Nebraska (1)
-
Cherry County Nebraska (1)
-
Cheyenne County Nebraska (6)
-
Dawes County Nebraska (9)
-
Deuel County Nebraska (1)
-
Garden County Nebraska (3)
-
Kimball County Nebraska (5)
-
Knox County Nebraska (2)
-
Morrill County Nebraska (8)
-
Scotts Bluff County Nebraska (4)
-
Sheridan County Nebraska (2)
-
Sioux County Nebraska (23)
-
Webster County Nebraska (1)
-
-
Nevada
-
Elko County Nevada
-
Independence Mountains (1)
-
-
Nye County Nevada (1)
-
-
New Hampshire
-
Cheshire County New Hampshire (1)
-
Grafton County New Hampshire (2)
-
-
New Mexico
-
Colfax County New Mexico (2)
-
Datil-Mogollon volcanic field (1)
-
Jemez Lineament (2)
-
Jornada del Muerto (1)
-
Lea County New Mexico
-
Vacuum Field (2)
-
-
Roosevelt County New Mexico (1)
-
San Juan County New Mexico (2)
-
Sierra County New Mexico (1)
-
Socorro County New Mexico
-
Socorro New Mexico (1)
-
-
Taos Plateau (1)
-
-
New York
-
Adirondack Mountains (2)
-
Franklin County New York (1)
-
-
North Dakota
-
Billings County North Dakota (1)
-
Bowman County North Dakota (1)
-
Kidder County North Dakota (1)
-
McHenry County North Dakota (1)
-
Mercer County North Dakota (1)
-
Oliver County North Dakota (1)
-
Slope County North Dakota (3)
-
Towner County North Dakota (1)
-
Williams County North Dakota (1)
-
-
Ogallala Aquifer (1)
-
Ohio (2)
-
Oklahoma
-
Logan County Oklahoma (2)
-
Payne County Oklahoma (1)
-
Wichita Uplift (1)
-
-
Oregon
-
Wheeler County Oregon (1)
-
-
Ouachita Belt (1)
-
Palo Duro Basin (1)
-
Paradox Basin (5)
-
Pennsylvania (2)
-
Powder River basin (195)
-
Sevier orogenic belt (6)
-
South Dakota
-
Badlands National Park (2)
-
Butte County South Dakota (6)
-
Charles Mix County South Dakota (1)
-
Custer County South Dakota (38)
-
Fall River County South Dakota (12)
-
Harney Peak Granite (12)
-
Lawrence County South Dakota (23)
-
Meade County South Dakota (4)
-
Pennington County South Dakota
-
Rapid City South Dakota (3)
-
-
Shannon County South Dakota (1)
-
-
South Platte River (1)
-
Southwestern U.S. (4)
-
Tennessee (1)
-
Texas
-
Amarillo Uplift (1)
-
Balcones fault zone (1)
-
Baylor County Texas (2)
-
Bexar County Texas (1)
-
Brewster County Texas
-
Big Bend National Park (1)
-
-
Crosby County Texas (1)
-
Deaf Smith County Texas (1)
-
Edwards Aquifer (1)
-
Edwards Plateau (1)
-
Fort Worth Basin (1)
-
Hartley County Texas (1)
-
Hemphill County Texas (1)
-
Karnes County Texas (1)
-
Live Oak County Texas (1)
-
Llano Uplift (2)
-
Lubbock County Texas (1)
-
McLennan County Texas (1)
-
Midland Basin (1)
-
Pecos County Texas (1)
-
Rita Blanca Lake (1)
-
Roberts County Texas (1)
-
San Jacinto County Texas (1)
-
Terrell County Texas (1)
-
Val Verde Basin (1)
-
Webb County Texas (1)
-
West Texas (6)
-
-
U. S. Rocky Mountains
-
Absaroka Range
-
Beartooth Mountains (1)
-
-
Bighorn Mountains (16)
-
Laramie Mountains (37)
-
Medicine Bow Mountains (27)
-
Owl Creek Mountains (3)
-
Sangre de Cristo Mountains (2)
-
Sawatch Range (1)
-
Uinta Mountains (1)
-
Wet Mountains (3)
-
Wind River Range (6)
-
-
Uinta Basin (7)
-
Uncompahgre Uplift (1)
-
Utah
-
Emery County Utah (1)
-
Kaiparowits Plateau (1)
-
Kane County Utah (1)
-
Uintah County Utah (1)
-
-
Vermont (1)
-
Washakie Basin (6)
-
Washington
-
Grant County Washington (1)
-
Lewis County Washington (1)
-
-
West Virginia (2)
-
Western U.S. (19)
-
Wisconsin (1)
-
Wyoming
-
Albany County Wyoming (44)
-
Big Horn County Wyoming (6)
-
Campbell County Wyoming (31)
-
Carbon County Wyoming
-
Seminoe Mountains (1)
-
Shirley Basin (4)
-
-
Converse County Wyoming (24)
-
Crook County Wyoming (21)
-
Fremont County Wyoming (10)
-
Gas Hills (1)
-
Goshen County Wyoming (9)
-
Great Divide Basin (3)
-
Hanna Basin (33)
-
Hartzog Draw Field (2)
-
Heart Mountain Fault (1)
-
Johnson County Wyoming (36)
-
Laramie Basin (11)
-
Laramie County Wyoming (25)
-
Natrona County Wyoming
-
Casper Wyoming (4)
-
-
Niobrara County Wyoming (22)
-
Owl Creek Mountains (3)
-
Platte County Wyoming (10)
-
Sheridan County Wyoming (19)
-
Sierra Madre Range (5)
-
Sublette County Wyoming (2)
-
Sweetwater County Wyoming (4)
-
Teapot Dome (17)
-
Teton County Wyoming
-
Jackson Hole (1)
-
-
Washakie County Wyoming (3)
-
Weston County Wyoming (10)
-
Wind River Range (6)
-
-
Wyoming Province (18)
-
Yavapai Province (2)
-
Yellowstone National Park (1)
-
-
USSR (1)
-
White River (2)
-
Willow Creek (1)
-
Wind River (1)
-
Wind River basin (19)
-
-
commodities
-
bitumens (3)
-
brines (3)
-
ceramic materials (1)
-
diamond deposits (2)
-
energy sources (26)
-
geothermal energy (2)
-
metal ores
-
copper ores (2)
-
gold ores (17)
-
iron ores (1)
-
lead ores (3)
-
lead-zinc deposits (1)
-
palladium ores (1)
-
platinum ores (1)
-
polymetallic ores (4)
-
pyrite ores (2)
-
rare earth deposits (1)
-
silver ores (6)
-
tungsten ores (6)
-
uranium ores (21)
-
zinc ores (1)
-
-
mineral deposits, genesis (29)
-
mineral exploration (14)
-
mineral resources (2)
-
oil and gas fields (76)
-
petroleum
-
natural gas
-
coalbed methane (13)
-
-
shale oil (2)
-
-
sandstone deposits (1)
-
tight sands (5)
-
water resources (4)
-
-
elements, isotopes
-
boron (3)
-
carbon
-
C-13 (1)
-
C-13/C-12 (31)
-
C-14 (12)
-
organic carbon (5)
-
-
halogens
-
fluorine
-
fluoride ion (1)
-
-
-
hydrogen
-
D/H (5)
-
deuterium (2)
-
-
isotope ratios (44)
-
isotopes
-
radioactive isotopes
-
C-14 (12)
-
Pb-206/Pb-204 (2)
-
Pb-207/Pb-204 (1)
-
Pb-208/Pb-204 (2)
-
Re-187/Os-188 (1)
-
Sm-147/Nd-144 (1)
-
U-238 (1)
-
-
stable isotopes
-
C-13 (1)
-
C-13/C-12 (31)
-
D/H (5)
-
deuterium (2)
-
Li-6 (1)
-
Li-7 (1)
-
Nd-144/Nd-143 (9)
-
O-18 (1)
-
O-18/O-16 (17)
-
Os-188/Os-187 (1)
-
Pb-206/Pb-204 (2)
-
Pb-207/Pb-204 (1)
-
Pb-207/Pb-206 (1)
-
Pb-208/Pb-204 (2)
-
Pb-208/Pb-206 (1)
-
Re-187/Os-188 (1)
-
S-34/S-32 (2)
-
Sm-147/Nd-144 (1)
-
Sr-87/Sr-86 (15)
-
-
-
Lu/Hf (1)
-
metals
-
actinides
-
thorium (6)
-
uranium
-
U-238 (1)
-
-
-
alkali metals
-
cesium (1)
-
lithium
-
Li-6 (1)
-
Li-7 (1)
-
-
rubidium (2)
-
sodium (9)
-
-
alkaline earth metals
-
barium (3)
-
beryllium (1)
-
calcium (3)
-
magnesium (3)
-
strontium
-
Sr-87/Sr-86 (15)
-
-
-
aluminum (3)
-
cadmium (2)
-
chromium (2)
-
copper (2)
-
gold (7)
-
iron (7)
-
lead
-
Pb-206/Pb-204 (2)
-
Pb-207/Pb-204 (1)
-
Pb-207/Pb-206 (1)
-
Pb-208/Pb-204 (2)
-
Pb-208/Pb-206 (1)
-
-
manganese (2)
-
mercury (1)
-
molybdenum (1)
-
nickel (3)
-
niobium (2)
-
platinum group
-
iridium (3)
-
osmium
-
Os-188/Os-187 (1)
-
Re-187/Os-188 (1)
-
-
palladium (1)
-
palladium ores (1)
-
platinum (2)
-
platinum ores (1)
-
-
rare earths
-
cerium (3)
-
europium (1)
-
neodymium
-
Nd-144/Nd-143 (9)
-
Sm-147/Nd-144 (1)
-
-
samarium
-
Sm-147/Nd-144 (1)
-
-
yttrium (1)
-
-
rhenium
-
Re-187/Os-188 (1)
-
-
silver (4)
-
tantalum (1)
-
tin (2)
-
tungsten (1)
-
vanadium (1)
-
zirconium (2)
-
-
nitrogen (2)
-
noble gases
-
radon (1)
-
-
oxygen
-
O-18 (1)
-
O-18/O-16 (17)
-
-
phosphorus (1)
-
silicon (1)
-
sulfur
-
S-34/S-32 (2)
-
-
tellurium (2)
-
-
fossils
-
Archaea (1)
-
borings (2)
-
burrows (11)
-
Chordata
-
Vertebrata
-
Pisces
-
Chondrichthyes
-
Elasmobranchii
-
Selachii (2)
-
-
-
Osteichthyes
-
Actinopterygii
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Chondrostei (1)
-
Holostei
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Amiidae (1)
-
-
Teleostei (1)
-
-
-
-
Tetrapoda
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Amphibia
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Labyrinthodontia (1)
-
Lissamphibia
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Anura (1)
-
Caudata (1)
-
-
-
Aves
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Neornithes (3)
-
-
Mammalia
-
Multituberculata (8)
-
Theria
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Eutheria
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Amblypoda
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Pantodonta (1)
-
-
Artiodactyla
-
Ruminantia
-
Bovidae
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Bison (3)
-
-
Cervidae (1)
-
Tylopoda
-
Camelidae (3)
-
-
-
-
Carnivora
-
Fissipeda
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Canidae (2)
-
Mustelidae (1)
-
Ursidae (1)
-
-
-
Chiroptera (1)
-
Condylarthra (4)
-
Creodonta (3)
-
Insectivora
-
Dermoptera (1)
-
-
Lagomorpha (3)
-
Perissodactyla
-
Ceratomorpha
-
Rhinocerotidae (3)
-
-
Hippomorpha
-
Equidae
-
Equus (3)
-
-
-
-
Primates (1)
-
Proboscidea
-
Elephantoidea
-
Elephantidae
-
Mammuthus
-
Mammuthus columbi (1)
-
-
-
-
Mastodontoidea (1)
-
-
Rodentia
-
Castoridae (1)
-
Myomorpha
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Cricetidae
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Neotoma (1)
-
-
Eomyidae (3)
-
-
Sciuromorpha
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Sciuridae (2)
-
-
-
Taeniodonta (1)
-
Ungulata (2)
-
-
Metatheria
-
Marsupialia
-
Polyprotodontia
-
Didelphidae (1)
-
-
-
-
-
-
Reptilia
-
Anapsida
-
Cotylosauria
-
Captorhinomorpha (1)
-
-
Testudines
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Chelonia (2)
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Cryptodira (1)
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Testudinidae (1)
-
-
-
Diapsida
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Archosauria
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Crocodilia (2)
-
dinosaurs
-
Ornithischia
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Ankylosauria (1)
-
Ceratopsia
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Ceratopsidae (1)
-
-
Ornithopoda
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Hadrosauridae (2)
-
-
-
Saurischia
-
Sauropodomorpha
-
Sauropoda
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Camarasaurus (1)
-
Diplodocidae (1)
-
-
-
Theropoda
-
Carnosauria (1)
-
Coelurosauria
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Dromaeosauridae (1)
-
Tyrannosauridae
-
Tyrannosaurus
-
Tyrannosaurus rex (1)
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-
-
-
-
-
-
Pterosauria
-
Pteranodon (1)
-
-
Thecodontia (1)
-
-
Eosuchia (1)
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Lepidosauria (1)
-
Sauropterygia
-
Plesiosauria (1)
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-
-
-
-
-
-
coprolites (3)
-
ichnofossils
-
Planolites (1)
-
Rhizocorallium (1)
-
-
Invertebrata
-
Arthropoda
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Mandibulata
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Crustacea
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Branchiopoda (1)
-
Malacostraca
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Brachyura (1)
-
-
Ostracoda
-
Podocopida
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Cypridocopina
-
Cyprididae (1)
-
-
-
-
-
Insecta
-
Pterygota
-
Neoptera
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Endopterygota
-
Coleoptera (1)
-
-
-
-
-
-
Trilobitomorpha
-
Trilobita
-
Ptychopariida (3)
-
-
-
-
Brachiopoda (3)
-
Bryozoa (1)
-
Cnidaria
-
Anthozoa (2)
-
-
Echinodermata
-
Asterozoa
-
Stelleroidea
-
Asteroidea (1)
-
-
-
Crinozoa
-
Crinoidea (1)
-
-
Echinozoa
-
Echinoidea (1)
-
-
-
Mollusca
-
Bivalvia
-
Heterodonta
-
Rudistae (1)
-
-
Ostreoidea
-
Ostreidae
-
Ostrea (1)
-
-
-
Pterioida
-
Pteriina
-
Inocerami
-
Inoceramidae (2)
-
-
-
-
-
Cephalopoda
-
Ammonoidea
-
Baculites (3)
-
Scaphites (1)
-
-
Nautiloidea
-
Nautilus (1)
-
-
-
Gastropoda
-
Pulmonata (1)
-
-
Scaphopoda
-
Dentalium (1)
-
-
-
Porifera
-
Demospongea (1)
-
-
Protista
-
Foraminifera
-
Rotaliina
-
Globigerinacea
-
Hedbergella (1)
-
-
-
-
Radiolaria (1)
-
-
Vermes
-
Polychaeta
-
Serpulidae (1)
-
-
-
-
Metazoa (1)
-
microfossils
-
Conodonta (1)
-
-
palynomorphs
-
megaspores (1)
-
miospores
-
pollen (12)
-
-
-
Plantae
-
algae
-
Chlorophyta
-
Chlorophyceae
-
Dasycladaceae (1)
-
-
-
Coccolithophoraceae (1)
-
diatoms (1)
-
-
Pteridophyta
-
Filicopsida (1)
-
-
Spermatophyta
-
Angiospermae
-
Dicotyledoneae
-
Pterocarya (1)
-
-
Monocotyledoneae
-
Gramineae (2)
-
-
-
Gymnospermae
-
Coniferales
-
Pinaceae (1)
-
Taxodiaceae (1)
-
-
-
-
-
thallophytes (2)
-
tracks (3)
-
trails (2)
-
-
geochronology methods
-
(U-Th)/He (1)
-
Ar/Ar (10)
-
fission-track dating (2)
-
K/Ar (3)
-
lichenometry (1)
-
Lu/Hf (1)
-
Nd/Nd (2)
-
optically stimulated luminescence (3)
-
paleomagnetism (14)
-
Pb/Pb (5)
-
Rb/Sr (8)
-
Sm/Nd (2)
-
tephrochronology (2)
-
Th/U (1)
-
thermochronology (4)
-
thermoluminescence (1)
-
U/Pb (30)
-
U/Th/Pb (3)
-
uranium disequilibrium (3)
-
-
geologic age
-
Cenozoic
-
Blancan (1)
-
middle Cenozoic (2)
-
Quaternary
-
Clovis (2)
-
Holocene
-
lower Holocene (1)
-
Medieval Warm Period (1)
-
middle Holocene (1)
-
Neoglacial (1)
-
upper Holocene (1)
-
-
Pleistocene
-
Blackwater Draw Formation (1)
-
Champlain Sea (1)
-
Irvingtonian (1)
-
Lake Agassiz (1)
-
Lake Algonquin (1)
-
lower Pleistocene (1)
-
Peoria Loess (4)
-
upper Pleistocene
-
Lake Iroquois (1)
-
Rancholabrean (1)
-
Weichselian
-
upper Weichselian
-
Allerod (1)
-
Bolling (1)
-
Younger Dryas (1)
-
-
-
Wisconsinan
-
upper Wisconsinan (2)
-
-
-
-
upper Quaternary
-
Pinedale Glaciation (3)
-
-
-
Tertiary
-
Arikaree Group (11)
-
Arikareean (1)
-
Catahoula Formation (2)
-
Cypress Hills Formation (3)
-
lower Tertiary (8)
-
Muddy Creek Formation (1)
-
Neogene
-
Bidahochi Formation (1)
-
Browns Park Formation (1)
-
Hemphillian (3)
-
Miocene
-
Ash Hollow Formation (3)
-
Barstovian (6)
-
Clarendonian (1)
-
Fleming Formation (1)
-
lower Miocene
-
Hemingfordian (2)
-
-
Surma Group (1)
-
upper Miocene (2)
-
Valentine Formation (3)
-
-
Ogallala Formation (9)
-
Pliocene
-
upper Pliocene
-
Rexroad Formation (1)
-
-
-
-
Paleogene
-
Chadron Formation (6)
-
Eocene
-
Green River Formation (1)
-
lower Eocene
-
Wasatchian (2)
-
Willwood Formation (4)
-
Wind River Formation (4)
-
-
middle Eocene
-
Aycross Formation (1)
-
Bartonian (1)
-
-
upper Eocene
-
Chadronian (12)
-
-
-
Hanna Formation (15)
-
lower Paleogene (2)
-
Oligocene
-
Brule Formation (11)
-
Frio Formation (2)
-
lower Oligocene (16)
-
middle Oligocene (1)
-
-
Paleocene
-
lower Paleocene
-
Danian (3)
-
K-T boundary (6)
-
Puercan (7)
-
Torrejonian (5)
-
-
Ludlow Member (2)
-
Tongue River Member (13)
-
Tullock Member (2)
-
upper Paleocene
-
Clarkforkian (1)
-
Tiffanian (4)
-
-
-
Paleocene-Eocene Thermal Maximum (2)
-
Renova Formation (1)
-
Wasatch Formation (18)
-
White River Group (22)
-
Wilcox Group (1)
-
-
-
upper Cenozoic (3)
-
-
Laurentide ice sheet (3)
-
Mesozoic
-
Cretaceous
-
Comanchean
-
Washita Group (1)
-
-
Dakota Formation (16)
-
Graneros Shale (4)
-
Lower Cretaceous
-
Albian
-
upper Albian (1)
-
-
Bear River Formation (1)
-
Cheyenne Sandstone (1)
-
Cloverly Formation (3)
-
Fall River Formation (6)
-
Kiowa Formation (1)
-
Lakota Formation (1)
-
Mowry Shale (13)
-
Muddy Sandstone (14)
-
Newcastle Sandstone (2)
-
Skull Creek Shale (7)
-
-
Mancos Shale (2)
-
Middle Cretaceous (2)
-
Upper Cretaceous
-
Almond Formation (1)
-
Bearpaw Formation (1)
-
Belle Fourche Shale (4)
-
Belly River Formation (1)
-
Bridge Creek Limestone Member (2)
-
Campanian
-
lower Campanian (2)
-
upper Campanian (2)
-
-
Carlile Shale (10)
-
Cenomanian
-
upper Cenomanian (2)
-
-
Codell Sandstone Member (9)
-
Cody Shale (7)
-
Coniacian (4)
-
Eagle Sandstone (2)
-
Ferron Sandstone Member (1)
-
Fort Hays Limestone Member (5)
-
Fox Hills Formation (3)
-
Frontier Formation (18)
-
Fruitland Formation (3)
-
Gammon Ferruginous Member (3)
-
Greenhorn Limestone (8)
-
Gulfian
-
Austin Chalk (1)
-
Eagle Ford Formation (2)
-
-
Hell Creek Formation (7)
-
Horseshoe Canyon Formation (1)
-
Judith River Formation (2)
-
Kirtland Shale (3)
-
K-T boundary (6)
-
Lance Formation (14)
-
Laramie Formation (2)
-
Lewis Shale (7)
-
Maestrichtian
-
upper Maestrichtian (1)
-
-
Mesaverde Group (13)
-
Milk River Formation (1)
-
Montana Group (1)
-
Niobrara Formation (36)
-
Ojo Alamo Sandstone (3)
-
Oldman Formation (1)
-
Parkman Sandstone (3)
-
Pierre Shale (33)
-
Santonian (3)
-
Senonian (26)
-
Shannon Sandstone Member (10)
-
Sharon Springs Member (5)
-
Smoky Hill Chalk Member (7)
-
Sussex Sandstone Member (4)
-
Teapot Sandstone Member (1)
-
Turonian
-
lower Turonian (1)
-
upper Turonian (1)
-
-
Tuscaloosa Formation (1)
-
Wall Creek Member (6)
-
-
-
Jurassic
-
Middle Jurassic
-
Callovian (1)
-
-
Posidonia Shale (1)
-
Upper Jurassic
-
Entrada Sandstone (1)
-
Haynesville Formation (1)
-
Morrison Formation (7)
-
Oxfordian (2)
-
Sundance Formation (9)
-
Swift Formation (1)
-
-
-
Triassic
-
Moenkopi Formation (1)
-
Upper Triassic
-
Chinle Formation (2)
-
Dockum Group (1)
-
Shinarump Member (1)
-
-
-
-
Paleozoic
-
Cambrian
-
Upper Cambrian
-
Galesville Sandstone (1)
-
Lamotte Sandstone (2)
-
Steptoean (1)
-
Trempealeauan (2)
-
Wilberns Formation (1)
-
Wonewoc Formation (1)
-
-
-
Carboniferous
-
Big Snowy Group (1)
-
Mississippian
-
Barnett Shale (1)
-
Charles Formation (1)
-
Madison Group (7)
-
Mission Canyon Limestone (2)
-
-
Pennsylvanian
-
Lower Pennsylvanian (1)
-
Middle Pennsylvanian
-
Desmoinesian (2)
-
-
Morrow Formation (1)
-
Strawn Series (1)
-
Upper Pennsylvanian
-
Virgilian (1)
-
-
-
-
Casper Formation (4)
-
Deadwood Formation (6)
-
Devonian
-
Middle Devonian
-
Marcellus Shale (1)
-
-
Upper Devonian
-
Duperow Formation (2)
-
-
-
Minnelusa Formation (26)
-
New Albany Shale (1)
-
Ordovician
-
Lower Ordovician (2)
-
Middle Ordovician
-
Simpson Group (1)
-
Winnipeg Formation (2)
-
-
Upper Ordovician
-
Bighorn Dolomite (3)
-
Red River Formation (3)
-
-
Utica Shale (1)
-
Viola Limestone (1)
-
-
Permian
-
Guadalupian (3)
-
Lower Permian
-
Cisuralian
-
Artinskian (1)
-
Kungurian (2)
-
-
Leonardian (4)
-
Opeche Shale (2)
-
Wolfcampian (4)
-
-
Lyons Sandstone (7)
-
Phosphoria Formation (2)
-
Rustler Formation (1)
-
Stone Corral Formation (1)
-
Upper Permian
-
Salado Formation (1)
-
-
Wellington Formation (2)
-
-
Sauk Sequence (1)
-
Tensleep Sandstone (11)
-
upper Paleozoic
-
Admire Group (1)
-
Antrim Shale (1)
-
Bakken Formation (1)
-
Fountain Formation (3)
-
-
Woodford Shale (1)
-
-
Phanerozoic (4)
-
Precambrian
-
Archean
-
Neoarchean (6)
-
-
Laramie anorthosite complex (12)
-
upper Precambrian
-
Proterozoic
-
Huronian (1)
-
Mesoproterozoic (6)
-
Neoproterozoic (3)
-
Paleoproterozoic (24)
-
-
-
-
-
igneous rocks
-
igneous rocks
-
carbonatites (2)
-
kimberlite (2)
-
plutonic rocks
-
anorthosite (14)
-
diabase (2)
-
diorites
-
ferrodiorite (1)
-
quartz diorites (2)
-
tonalite (1)
-
-
gabbros
-
norite (1)
-
troctolite (3)
-
-
granites
-
A-type granites (2)
-
biotite granite (1)
-
charnockite (2)
-
leucogranite (5)
-
monzogranite (2)
-
muscovite granite (1)
-
two-mica granite (1)
-
-
granodiorites (3)
-
lamprophyres
-
minette (1)
-
-
monzodiorite (1)
-
monzonites
-
mangerite (2)
-
-
pegmatite (25)
-
quartz monzonite (1)
-
syenites (5)
-
ultramafics
-
peridotites (2)
-
-
-
volcanic rocks
-
basalts
-
alkali basalts
-
trachybasalts (2)
-
-
-
basanite (1)
-
dacites (1)
-
glasses
-
volcanic glass (1)
-
-
phonolites (2)
-
pyroclastics
-
ignimbrite (1)
-
tuff (4)
-
-
rhyodacites (2)
-
rhyolites (1)
-
trachyandesites (1)
-
-
-
volcanic ash (3)
-
-
metamorphic rocks
-
metamorphic rocks
-
amphibolites (5)
-
eclogite (1)
-
gneisses
-
granite gneiss (1)
-
orthogneiss (1)
-
paragneiss (1)
-
-
hornfels (1)
-
metaigneous rocks
-
metadiabase (3)
-
metagabbro (1)
-
metagranite (2)
-
-
metaplutonic rocks (1)
-
metasedimentary rocks
-
metagraywacke (2)
-
metapelite (6)
-
paragneiss (1)
-
-
metasomatic rocks (1)
-
metavolcanic rocks (5)
-
migmatites (6)
-
mylonites (4)
-
quartzites (2)
-
schists
-
tourmalinite (1)
-
-
slates (1)
-
-
turbidite (1)
-
-
meteorites
-
meteorites
-
iron meteorites (1)
-
stony meteorites
-
achondrites
-
Martian meteorites (1)
-
-
-
-
-
minerals
-
alloys (1)
-
arsenates
-
scorodite (1)
-
-
arsenides
-
lollingite (1)
-
-
carbonates
-
bastnaesite (1)
-
calcite (12)
-
dolomite (2)
-
siderite (1)
-
strontianite (1)
-
-
halides
-
bromides (1)
-
fluorides
-
bastnaesite (1)
-
fluorite (4)
-
-
-
manganese minerals (1)
-
minerals (48)
-
native elements
-
diamond (1)
-
graphite (2)
-
-
organic minerals
-
amber (1)
-
-
oxides
-
anatase (1)
-
baddeleyite (3)
-
cassiterite (1)
-
ferrihydrite (1)
-
gibbsite (1)
-
hydroxides
-
iron hydroxides (1)
-
-
iron oxides (5)
-
niobates
-
tapiolite (1)
-
-
pitchblende (1)
-
tantalates
-
microlite (1)
-
tantalite (2)
-
wodginite (1)
-
-
titanium oxides (2)
-
uraninite (6)
-
-
phosphates
-
apatite (6)
-
barbosalite (1)
-
carbonate apatite (1)
-
fluorapatite (1)
-
goyazite (2)
-
hureaulite (2)
-
monazite (4)
-
rockbridgeite (1)
-
strengite (1)
-
vivianite (1)
-
xenotime (1)
-
-
silicates
-
chain silicates
-
aenigmatite group
-
aenigmatite (1)
-
-
amphibole group
-
clinoamphibole
-
actinolite (1)
-
hornblende (4)
-
-
-
pyroxene group
-
clinopyroxene
-
spodumene (3)
-
-
orthopyroxene (1)
-
-
-
framework silicates
-
feldspar group
-
alkali feldspar
-
K-feldspar (2)
-
microcline (5)
-
orthoclase (1)
-
perthite (1)
-
sanidine (2)
-
-
plagioclase
-
albite (1)
-
-
-
silica minerals
-
chalcedony (1)
-
opal
-
opal-CT (1)
-
-
quartz (12)
-
-
zeolite group
-
clinoptilolite (1)
-
pollucite (1)
-
-
-
orthosilicates
-
nesosilicates
-
andalusite (2)
-
britholite group (1)
-
garnet group
-
almandine (1)
-
hydrogarnet (1)
-
-
olivine group
-
olivine (1)
-
-
sillimanite (5)
-
staurolite (3)
-
titanite group
-
titanite (4)
-
-
zircon group
-
coffinite (2)
-
zircon (26)
-
-
-
sorosilicates
-
epidote group
-
allanite (1)
-
-
melilite group
-
melilite (1)
-
-
-
-
ring silicates
-
beryl (2)
-
tourmaline group (5)
-
-
sheet silicates
-
chlorite group
-
chlorite (2)
-
-
clay minerals
-
beidellite (2)
-
hisingerite (1)
-
kaolinite (3)
-
montmorillonite (10)
-
smectite (13)
-
-
corrensite (1)
-
illite (6)
-
mica group
-
biotite (5)
-
muscovite (7)
-
phlogopite (1)
-
-
rectorite (1)
-
serpentine group
-
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Primary terms
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Africa
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Western Canada
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carbon
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C-13 (1)
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Cenozoic
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Quaternary
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Pleistocene
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Blackwater Draw Formation (1)
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lower Pleistocene (1)
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Allerod (1)
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-
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Wisconsinan
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upper Wisconsinan (2)
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-
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upper Quaternary
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Pinedale Glaciation (3)
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Tertiary
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Arikaree Group (11)
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Catahoula Formation (2)
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Cypress Hills Formation (3)
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lower Tertiary (8)
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Neogene
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Bidahochi Formation (1)
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Browns Park Formation (1)
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Hemphillian (3)
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Miocene
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Ash Hollow Formation (3)
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Barstovian (6)
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Clarendonian (1)
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Fleming Formation (1)
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lower Miocene
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Hemingfordian (2)
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Surma Group (1)
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upper Miocene (2)
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Valentine Formation (3)
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Ogallala Formation (9)
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Pliocene
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upper Pliocene
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Rexroad Formation (1)
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-
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Paleogene
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Chadron Formation (6)
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Eocene
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Green River Formation (1)
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lower Eocene
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Wasatchian (2)
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Willwood Formation (4)
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Wind River Formation (4)
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middle Eocene
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Aycross Formation (1)
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Bartonian (1)
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upper Eocene
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Chadronian (12)
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-
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Hanna Formation (15)
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lower Paleogene (2)
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Oligocene
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Brule Formation (11)
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Frio Formation (2)
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lower Oligocene (16)
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middle Oligocene (1)
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Paleocene
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lower Paleocene
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Danian (3)
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K-T boundary (6)
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Puercan (7)
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Torrejonian (5)
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Ludlow Member (2)
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Tongue River Member (13)
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Tullock Member (2)
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upper Paleocene
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Clarkforkian (1)
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Tiffanian (4)
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-
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Paleocene-Eocene Thermal Maximum (2)
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Renova Formation (1)
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Wasatch Formation (18)
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White River Group (22)
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Wilcox Group (1)
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upper Cenozoic (3)
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ceramic materials (1)
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Chordata
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Vertebrata
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Pisces
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Osteichthyes
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Teleostei (1)
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Tetrapoda
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Labyrinthodontia (1)
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Caudata (1)
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Aves
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Mammalia
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Multituberculata (8)
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Theria
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Amblypoda
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Artiodactyla
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Ruminantia
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Bovidae
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Bison (3)
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Tylopoda
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Carnivora
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Fissipeda
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Canidae (2)
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Chiroptera (1)
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Insectivora
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Dermoptera (1)
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Lagomorpha (3)
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Perissodactyla
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Ceratomorpha
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Hippomorpha
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Equidae
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Equus (3)
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Primates (1)
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Proboscidea
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Elephantoidea
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Elephantidae
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Mammuthus
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Mammuthus columbi (1)
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Mastodontoidea (1)
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Rodentia
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Myomorpha
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Sciuromorpha
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Taeniodonta (1)
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Ungulata (2)
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Metatheria
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Marsupialia
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Polyprotodontia
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Didelphidae (1)
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-
-
-
-
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Reptilia
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Anapsida
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Cotylosauria
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Captorhinomorpha (1)
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Testudines
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Diapsida
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Archosauria
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Crocodilia (2)
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Ornithischia
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Ornithopoda
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Hadrosauridae (2)
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Saurischia
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Sauropodomorpha
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Sauropoda
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Camarasaurus (1)
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Theropoda
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Carnosauria (1)
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Coelurosauria
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Tyrannosauridae
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Tyrannosaurus
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Tyrannosaurus rex (1)
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-
-
-
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Pterosauria
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Pteranodon (1)
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Thecodontia (1)
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Eosuchia (1)
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Sauropterygia
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clay mineralogy (24)
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climate change (20)
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continental drift (3)
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volcanic rocks
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impact statements (1)
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inclusions
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Indian Ocean
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Arabian Sea
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intrusions (58)
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Invertebrata
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Arthropoda
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Crustacea
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Ostracoda
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Podocopida
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-
-
Insecta
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Pterygota
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Neoptera
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Endopterygota
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Coleoptera (1)
-
-
-
-
-
-
Trilobitomorpha
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Trilobita
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Ptychopariida (3)
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Brachiopoda (3)
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Bryozoa (1)
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Cnidaria
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Anthozoa (2)
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Echinodermata
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Asterozoa
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Stelleroidea
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Crinozoa
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Echinozoa
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Echinoidea (1)
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-
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Mollusca
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Bivalvia
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Heterodonta
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Rudistae (1)
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Ostreoidea
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Ostreidae
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Ostrea (1)
-
-
-
Pterioida
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Pteriina
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Inocerami
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Inoceramidae (2)
-
-
-
-
-
Cephalopoda
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Ammonoidea
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Baculites (3)
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Scaphites (1)
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Nautiloidea
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Nautilus (1)
-
-
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Gastropoda
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Pulmonata (1)
-
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Scaphopoda
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Dentalium (1)
-
-
-
Porifera
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Demospongea (1)
-
-
Protista
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Foraminifera
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Rotaliina
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Globigerinacea
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Hedbergella (1)
-
-
-
-
Radiolaria (1)
-
-
Vermes
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Polychaeta
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Serpulidae (1)
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-
-
isostasy (5)
-
isotopes
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radioactive isotopes
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C-14 (12)
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Pb-206/Pb-204 (2)
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Pb-207/Pb-204 (1)
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Pb-208/Pb-204 (2)
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Re-187/Os-188 (1)
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Sm-147/Nd-144 (1)
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U-238 (1)
-
-
stable isotopes
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C-13 (1)
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C-13/C-12 (31)
-
D/H (5)
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deuterium (2)
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Li-6 (1)
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Li-7 (1)
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Nd-144/Nd-143 (9)
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O-18 (1)
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O-18/O-16 (17)
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Os-188/Os-187 (1)
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Pb-206/Pb-204 (2)
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Pb-207/Pb-204 (1)
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Pb-207/Pb-206 (1)
-
Pb-208/Pb-204 (2)
-
Pb-208/Pb-206 (1)
-
Re-187/Os-188 (1)
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S-34/S-32 (2)
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Sm-147/Nd-144 (1)
-
Sr-87/Sr-86 (15)
-
-
-
land subsidence (3)
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land use (5)
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lava (1)
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lineation (3)
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magmas (29)
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mantle (7)
-
maps (42)
-
Mesozoic
-
Cretaceous
-
Comanchean
-
Washita Group (1)
-
-
Dakota Formation (16)
-
Graneros Shale (4)
-
Lower Cretaceous
-
Albian
-
upper Albian (1)
-
-
Bear River Formation (1)
-
Cheyenne Sandstone (1)
-
Cloverly Formation (3)
-
Fall River Formation (6)
-
Kiowa Formation (1)
-
Lakota Formation (1)
-
Mowry Shale (13)
-
Muddy Sandstone (14)
-
Newcastle Sandstone (2)
-
Skull Creek Shale (7)
-
-
Mancos Shale (2)
-
Middle Cretaceous (2)
-
Upper Cretaceous
-
Almond Formation (1)
-
Bearpaw Formation (1)
-
Belle Fourche Shale (4)
-
Belly River Formation (1)
-
Bridge Creek Limestone Member (2)
-
Campanian
-
lower Campanian (2)
-
upper Campanian (2)
-
-
Carlile Shale (10)
-
Cenomanian
-
upper Cenomanian (2)
-
-
Codell Sandstone Member (9)
-
Cody Shale (7)
-
Coniacian (4)
-
Eagle Sandstone (2)
-
Ferron Sandstone Member (1)
-
Fort Hays Limestone Member (5)
-
Fox Hills Formation (3)
-
Frontier Formation (18)
-
Fruitland Formation (3)
-
Gammon Ferruginous Member (3)
-
Greenhorn Limestone (8)
-
Gulfian
-
Austin Chalk (1)
-
Eagle Ford Formation (2)
-
-
Hell Creek Formation (7)
-
Horseshoe Canyon Formation (1)
-
Judith River Formation (2)
-
Kirtland Shale (3)
-
K-T boundary (6)
-
Lance Formation (14)
-
Laramie Formation (2)
-
Lewis Shale (7)
-
Maestrichtian
-
upper Maestrichtian (1)
-
-
Mesaverde Group (13)
-
Milk River Formation (1)
-
Montana Group (1)
-
Niobrara Formation (36)
-
Ojo Alamo Sandstone (3)
-
Oldman Formation (1)
-
Parkman Sandstone (3)
-
Pierre Shale (33)
-
Santonian (3)
-
Senonian (26)
-
Shannon Sandstone Member (10)
-
Sharon Springs Member (5)
-
Smoky Hill Chalk Member (7)
-
Sussex Sandstone Member (4)
-
Teapot Sandstone Member (1)
-
Turonian
-
lower Turonian (1)
-
upper Turonian (1)
-
-
Tuscaloosa Formation (1)
-
Wall Creek Member (6)
-
-
-
Jurassic
-
Middle Jurassic
-
Callovian (1)
-
-
Posidonia Shale (1)
-
Upper Jurassic
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Entrada Sandstone (1)
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Haynesville Formation (1)
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Morrison Formation (7)
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Oxfordian (2)
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Sundance Formation (9)
-
Swift Formation (1)
-
-
-
Triassic
-
Moenkopi Formation (1)
-
Upper Triassic
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Chinle Formation (2)
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Dockum Group (1)
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Shinarump Member (1)
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-
-
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metal ores
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metals
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U-238 (1)
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alkali metals
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cesium (1)
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Li-6 (1)
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Li-7 (1)
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rubidium (2)
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alkaline earth metals
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magnesium (3)
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strontium
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Sr-87/Sr-86 (15)
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-
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aluminum (3)
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cadmium (2)
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chromium (2)
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copper (2)
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gold (7)
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iron (7)
-
lead
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Pb-206/Pb-204 (2)
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Pb-207/Pb-204 (1)
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Pb-207/Pb-206 (1)
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Pb-208/Pb-204 (2)
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Pb-208/Pb-206 (1)
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manganese (2)
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platinum group
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osmium
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Os-188/Os-187 (1)
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Re-187/Os-188 (1)
-
-
palladium (1)
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palladium ores (1)
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platinum (2)
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platinum ores (1)
-
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rare earths
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cerium (3)
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europium (1)
-
neodymium
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Nd-144/Nd-143 (9)
-
Sm-147/Nd-144 (1)
-
-
samarium
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Sm-147/Nd-144 (1)
-
-
yttrium (1)
-
-
rhenium
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Re-187/Os-188 (1)
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silver (4)
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tantalum (1)
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tin (2)
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tungsten (1)
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vanadium (1)
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zirconium (2)
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metamorphic rocks
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amphibolites (5)
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gneisses
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granite gneiss (1)
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orthogneiss (1)
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paragneiss (1)
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hornfels (1)
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metaigneous rocks
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metadiabase (3)
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metagranite (2)
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metaplutonic rocks (1)
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metasedimentary rocks
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metagraywacke (2)
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metapelite (6)
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paragneiss (1)
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metasomatic rocks (1)
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metavolcanic rocks (5)
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migmatites (6)
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mylonites (4)
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schists
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tourmalinite (1)
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slates (1)
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metamorphism (42)
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metasomatism (15)
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meteorites
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iron meteorites (1)
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stony meteorites
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achondrites
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Martian meteorites (1)
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meteorology (1)
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Mexico
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Sierra Madre Occidental (1)
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Sonora Mexico (1)
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mineral deposits, genesis (29)
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mineral exploration (14)
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mineral resources (2)
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mineralogy (40)
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minerals (48)
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mining geology (11)
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Mohorovicic discontinuity (1)
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museums (1)
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nitrogen (2)
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noble gases
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radon (1)
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North America
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Appalachian Basin (6)
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Appalachians (2)
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Basin and Range Province (7)
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Canadian Shield
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Churchill Province
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Hearne Province (1)
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Superior Province (4)
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Great Lakes (1)
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Great Lakes region (1)
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Great Plains
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Northern Great Plains (5)
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Southern Great Plains (1)
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Gulf Coastal Plain (12)
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Michigan Basin (2)
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Missouri River basin (1)
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North American Cordillera (2)
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Pedregosa Basin (1)
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Rio Grande Rift (10)
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Rocky Mountains
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U. S. Rocky Mountains
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Absaroka Range
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Beartooth Mountains (1)
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Bighorn Mountains (16)
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Laramie Mountains (37)
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Medicine Bow Mountains (27)
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Owl Creek Mountains (3)
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Sangre de Cristo Mountains (2)
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Sawatch Range (1)
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Uinta Mountains (1)
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Wet Mountains (3)
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Wind River Range (6)
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Rocky Mountains foreland (10)
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Saint Lawrence Valley (1)
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Sweetgrass Arch (2)
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Transcontinental Arch (4)
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Western Canada Sedimentary Basin (1)
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Western Interior
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Western Interior Seaway (22)
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Western Overthrust Belt (2)
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Williston Basin (19)
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ocean waves (1)
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oil and gas fields (76)
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orogeny (22)
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oxygen
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O-18 (1)
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O-18/O-16 (17)
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Pacific Ocean
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North Pacific
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Northwest Pacific
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Shatsky Rise (1)
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West Pacific
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Northwest Pacific
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Shatsky Rise (1)
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paleobotany (6)
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paleoclimatology (43)
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paleoecology (48)
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paleogeography (51)
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paleomagnetism (14)
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paleontology (72)
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Paleozoic
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Cambrian
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Upper Cambrian
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Galesville Sandstone (1)
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Lamotte Sandstone (2)
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Steptoean (1)
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Trempealeauan (2)
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Wilberns Formation (1)
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Wonewoc Formation (1)
-
-
-
Carboniferous
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Big Snowy Group (1)
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Mississippian
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Barnett Shale (1)
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Charles Formation (1)
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Madison Group (7)
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Mission Canyon Limestone (2)
-
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Pennsylvanian
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Lower Pennsylvanian (1)
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Middle Pennsylvanian
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Desmoinesian (2)
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Morrow Formation (1)
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Strawn Series (1)
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Upper Pennsylvanian
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Virgilian (1)
-
-
-
-
Casper Formation (4)
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Deadwood Formation (6)
-
Devonian
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Middle Devonian
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Marcellus Shale (1)
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-
Upper Devonian
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Duperow Formation (2)
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-
-
Minnelusa Formation (26)
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New Albany Shale (1)
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Ordovician
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Lower Ordovician (2)
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Middle Ordovician
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Simpson Group (1)
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Winnipeg Formation (2)
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-
Upper Ordovician
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Bighorn Dolomite (3)
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Red River Formation (3)
-
-
Utica Shale (1)
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Viola Limestone (1)
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-
Permian
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Guadalupian (3)
-
Lower Permian
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Cisuralian
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Artinskian (1)
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Kungurian (2)
-
-
Leonardian (4)
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Opeche Shale (2)
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Wolfcampian (4)
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-
Lyons Sandstone (7)
-
Phosphoria Formation (2)
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Rustler Formation (1)
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Stone Corral Formation (1)
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Upper Permian
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Salado Formation (1)
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-
Wellington Formation (2)
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-
Sauk Sequence (1)
-
Tensleep Sandstone (11)
-
upper Paleozoic
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Admire Group (1)
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Antrim Shale (1)
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Bakken Formation (1)
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Fountain Formation (3)
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Woodford Shale (1)
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palynomorphs
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megaspores (1)
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miospores
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pollen (12)
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paragenesis (9)
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petroleum
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natural gas
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coalbed methane (13)
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shale oil (2)
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petrology (40)
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Phanerozoic (4)
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phase equilibria (14)
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phosphorus (1)
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Plantae
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algae
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Chlorophyta
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Chlorophyceae
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Dasycladaceae (1)
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Coccolithophoraceae (1)
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diatoms (1)
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Pteridophyta
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Filicopsida (1)
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Spermatophyta
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Angiospermae
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Dicotyledoneae
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Pterocarya (1)
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Monocotyledoneae
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Gramineae (2)
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Gymnospermae
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Coniferales
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Pinaceae (1)
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Taxodiaceae (1)
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plate tectonics (26)
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pollution (12)
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Precambrian
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Archean
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Neoarchean (6)
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Laramie anorthosite complex (12)
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upper Precambrian
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Proterozoic
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Huronian (1)
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Mesoproterozoic (6)
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Neoproterozoic (3)
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Paleoproterozoic (24)
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-
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reclamation (3)
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remote sensing (21)
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reservoirs (4)
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rock mechanics (7)
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sandstone deposits (1)
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sea water (1)
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sea-level changes (35)
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sedimentary petrology (52)
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sedimentary rocks
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bone beds (1)
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carbonate rocks
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chalk (6)
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dolostone (4)
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grainstone (4)
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limestone
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micrite (2)
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oolitic limestone (1)
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packstone (2)
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wackestone (2)
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chemically precipitated rocks
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evaporites (4)
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iron formations
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banded iron formations (2)
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-
-
clastic rocks
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arenite
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quartz arenite (1)
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arkose (1)
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bentonite (6)
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black shale (4)
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claystone (4)
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conglomerate (16)
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diamictite (1)
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graywacke (1)
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marl (5)
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mudstone (13)
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red beds (3)
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sandstone (110)
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shale (22)
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siltstone (12)
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coal
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bituminous coal (1)
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lignite (5)
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subbituminous coal (2)
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gas sands (2)
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gas shale (1)
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oil shale (2)
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sedimentary structures
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bedding plane irregularities
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dune structures (2)
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fossil ice wedges (1)
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ripple marks (2)
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sand ridges (1)
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biogenic structures
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bioturbation (13)
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lebensspuren (3)
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stromatolites (2)
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graded bedding (1)
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planar bedding structures
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bedding (4)
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cross-bedding (6)
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cross-stratification (4)
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cyclothems (1)
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hummocky cross-stratification (2)
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imbrication (1)
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laminations (4)
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rhythmic bedding (2)
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sand bodies (10)
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primary structures (1)
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rhizoliths (2)
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secondary structures
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concretions (5)
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stylolites (2)
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soft sediment deformation
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clastic dikes (1)
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sandstone dikes (1)
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turbidity current structures (1)
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sedimentation (105)
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sediments
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clastic sediments
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alluvium (8)
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clay (7)
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diamicton (1)
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drift (2)
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dust (2)
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erratics (1)
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gravel (4)
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loess (6)
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sand (5)
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silt (5)
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till (6)
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marine sediments (1)
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peat (6)
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seismology (9)
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shorelines (3)
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silicon (1)
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slope stability (4)
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soil mechanics (1)
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soils
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Entisols (1)
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Inceptisols (1)
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loam (1)
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Mollisols (1)
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South America
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Andes (1)
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Brazil
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Para Brazil (1)
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Southern Ocean
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Ross Sea
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McMurdo Sound (1)
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spectroscopy (9)
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springs (2)
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stratigraphy (106)
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structural analysis (19)
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structural geology (58)
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sulfur
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S-34/S-32 (2)
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symposia (2)
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tectonics
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neotectonics (3)
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salt tectonics (1)
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tectonophysics (7)
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tellurium (2)
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thermal waters (2)
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underground installations (1)
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United States
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Alaska (1)
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Arizona
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Mogollon Rim (1)
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Arkansas
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Arkansas River valley (1)
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California
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Inyo County California (1)
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Los Angeles Basin (1)
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Cedar Creek Anticline (2)
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Colorado
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Adams County Colorado (2)
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Cache La Poudre River (1)
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Colorado mineral belt (2)
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Douglas County Colorado (2)
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Fremont County Colorado
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Logan County Colorado (5)
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Rocky Mountain National Park (7)
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San Juan volcanic field (1)
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Sawatch Range (1)
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Teller County Colorado (2)
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Washington County Colorado (3)
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Wattenberg Field (16)
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Weld County Colorado
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Greeley Colorado (4)
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Wet Mountains (3)
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Yuma County Colorado (3)
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Colorado Lineament (3)
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Connecticut
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Fairfield County Connecticut (1)
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Delaware Basin (2)
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Eastern U.S. (1)
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High Plains Aquifer (2)
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Idaho
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Snake River plain (3)
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Illinois (1)
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Iowa (3)
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Kansas
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Sherman County Kansas (1)
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Kentucky
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Edmonson County Kentucky (1)
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Little Missouri River basin (1)
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Louisiana
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Atchafalaya Bay (1)
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Madison Aquifer (4)
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Michigan (1)
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Midcontinent (8)
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Minnesota
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Pennington County Minnesota (1)
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Mississippi Valley
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Upper Mississippi Valley (2)
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Missouri (2)
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Mojave Desert (2)
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Montana
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Beaverhead County Montana (1)
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Carter County Montana (5)
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Crazy Mountains Basin (1)
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Dawson County Montana (2)
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Fallon County Montana (2)
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Garfield County Montana (5)
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Hill County Montana (1)
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Madison County Montana (1)
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McCone County Montana (1)
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Powder River County Montana (5)
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Rosebud County Montana (3)
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Sweet Grass County Montana (1)
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Toole County Montana (1)
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Moxa Arch (1)
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Mullen Creek-Nash Fork shear zone (2)
-
Nebraska
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Antelope County Nebraska (1)
-
Banner County Nebraska (8)
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Box Butte County Nebraska (3)
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Brown County Nebraska (1)
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Cherry County Nebraska (1)
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Cheyenne County Nebraska (6)
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Dawes County Nebraska (9)
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Garden County Nebraska (3)
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Kimball County Nebraska (5)
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Knox County Nebraska (2)
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Morrill County Nebraska (8)
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Scotts Bluff County Nebraska (4)
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Sheridan County Nebraska (2)
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Sioux County Nebraska (23)
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Webster County Nebraska (1)
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Nevada
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Elko County Nevada
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Independence Mountains (1)
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Nye County Nevada (1)
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New Hampshire
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Cheshire County New Hampshire (1)
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Grafton County New Hampshire (2)
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-
New Mexico
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Colfax County New Mexico (2)
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Datil-Mogollon volcanic field (1)
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Jemez Lineament (2)
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Jornada del Muerto (1)
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Lea County New Mexico
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Vacuum Field (2)
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Roosevelt County New Mexico (1)
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San Juan County New Mexico (2)
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Sierra County New Mexico (1)
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Socorro County New Mexico
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Taos Plateau (1)
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New York
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Adirondack Mountains (2)
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Franklin County New York (1)
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North Dakota
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Billings County North Dakota (1)
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Kidder County North Dakota (1)
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Ogallala Aquifer (1)
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Ohio (2)
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Oklahoma
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Logan County Oklahoma (2)
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Wichita Uplift (1)
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Oregon
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South Dakota
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Harney Peak Granite (12)
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South Platte River (1)
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Southwestern U.S. (4)
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Tennessee (1)
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Texas
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Amarillo Uplift (1)
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Balcones fault zone (1)
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Baylor County Texas (2)
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West Texas (6)
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U. S. Rocky Mountains
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Absaroka Range
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Bighorn Mountains (16)
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Medicine Bow Mountains (27)
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Owl Creek Mountains (3)
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Uinta Basin (7)
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Utah
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Emery County Utah (1)
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Vermont (1)
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Wyoming
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Converse County Wyoming (24)
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Wyoming Province (18)
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USSR (1)
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weathering (16)
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X-ray analysis (2)
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rock formations
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Chugwater Formation (1)
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Fort Union Formation (32)
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Goose Egg Formation (2)
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J Sandstone (3)
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Paskapoo Formation (1)
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Raton Formation (1)
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Spearfish Formation (3)
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Wapiti Formation (1)
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sedimentary rocks
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caliche (2)
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sedimentary rocks
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bone beds (1)
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carbonate rocks
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chalk (6)
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dolostone (4)
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grainstone (4)
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limestone
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micrite (2)
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oolitic limestone (1)
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packstone (2)
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wackestone (2)
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chemically precipitated rocks
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evaporites (4)
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iron formations
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banded iron formations (2)
-
-
-
clastic rocks
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arenite
-
quartz arenite (1)
-
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arkose (1)
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bentonite (6)
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black shale (4)
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GeoRef Categories
Era and Period
Epoch and Age
Book Series
Date
Availability
Investigating nanoparticle pathfinder geochemistry in stream sediments using single particle inductively coupled plasma mass spectrometry: a case study at the Sundance gold mineralization, Wyoming, USA Available to Purchase
Impact of natural fractures on hydraulic fracture propagation in Denver-Julesburg Basin: Insights from a decade of research Available to Purchase
Mantle melting in regions of thick continental lithosphere: Examples from Late Cretaceous and younger volcanic rocks, Southern Rocky Mountains, Colorado (USA) Open Access
Quantitative multistage fracturing efficiency evaluation using cross-well strain measurements Available to Purchase
Insight into the Evolution of the Eastern Margin of the Wyoming Craton from Complex, Laterally Variable Shear Wave Splitting Open Access
Detecting fractures and monitoring hydraulic fracturing processes at the first EGS Collab testbed using borehole DAS ambient noise Open Access
The edge of a Permian erg: Eolian facies and provenance of the Lyons Sandstone in northern Colorado Available to Purchase
Three-dimensional distributed acoustic sensing at the Sanford Underground Research Facility Available to Purchase
Chronology and erosion rate of the Pinedale glaciation, Colorado Front Range (USA), inferred from the sedimentary record of glacial Lake Devlin Available to Purchase
Spatial heterogeneity in benthic foraminiferal assemblages tracks regional impacts of paleoenvironmental change across Cretaceous OAE2 Open Access
Estimating additional resistivity by permeability in brine-saturated sandstones Open Access
Sedimentological and geochemical insights into the opening of the Cretaceous interior seaway: The Lower Cretaceous Skull Creek Formation, Colorado Available to Purchase
Challenges and best practices in interpreting crosswell strain signals to monitor multicrew zipper-fracturing operations Available to Purchase
Exhumed fluvial landforms reveal evolution of late Eocene–Pliocene rivers on the Central and Northern Great Plains, USA Open Access
Reservoir characterization and geologic modeling of the Lower Cretaceous Muddy Formation at Bell Creek Field, Montana, USA Available to Purchase
Investigations of Ambient Noise Velocity Variations in a Region of Induced Seismicity near Greeley, Colorado Open Access
Petrologic constraints on the origin of Proterozoic ferroan granites of the Laurentian margin Available to Purchase
ABSTRACT Ferroan granite is a characteristic rock type of the Laurentian margin. It is commonly associated with anorthosite and related rocks. Ferroan granites are strongly enriched in iron, are alkalic to alkali-calcic, and are generally metaluminous. These geochemical characteristics reflect their tholeiitic parental magma source and relatively reducing and anhydrous conditions of crystallization. Their compositions distinguish them from arc magmas, which are magnesian and calcic to calc-alkalic. Ferroan granite magmas are hot, which promotes partial melting of their crustal wall rocks. Assimilation of these silica-rich and peraluminous melts drives the resulting magmas to higher silica and aluminum saturation values. Where Proterozoic ferroan granites intrude Archean crust, their mantle component is readily identified isotopically, but this is more difficult where they intrude relatively juvenile crust. Ferroan granite forms in tectonic environments that allow partial melts of tholeiitic mantle to pond and differentiate at or near the base of the crust. Phanerozoic examples occur in plume settings, such as the Snake River Plain and Yellowstone, or under certain conditions involving slab rollback, such as those that formed the Cenozoic topaz rhyolites of the western United States or ferroan rhyolites of the Sierra Madre Occidental. It is possible that the long-lived supercontinent Nuna-Rodinia, of which Laurentia was a part, formed an insulating lid that raised underlying mantle temperatures and created a unique environment that enabled emplacement of large volumes of mafic melt at the base of the crust. Ascent of felsic differentiates accompanied by variable crustal assimilation may have created large volumes of Proterozoic ferroan granite and related rocks.