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NARROW
Format
Article Type
Journal
Publisher
Section
GeoRef Subject
-
all geography including DSDP/ODP Sites and Legs
-
Africa
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East Africa
-
Kenya (1)
-
-
West Africa
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Ghana (1)
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-
-
Antarctica
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Antarctic Peninsula (1)
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Arctic region
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Greenland (1)
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Asia
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Arabian Peninsula
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Arabian Shield (1)
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Saudi Arabia (1)
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Far East
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China (2)
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Indonesia
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Java (1)
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Mongolia (1)
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Philippine Islands (1)
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Gobi Desert (1)
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Indian Peninsula
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Afghanistan (1)
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Uzbekistan (1)
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Atlantic Ocean
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North Atlantic
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Gulf of Mexico (1)
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Atlantic Ocean Islands
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Bermuda (1)
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Australasia
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Australia
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Northern Territory Australia
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Pine Creek Geosyncline (1)
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Tanami Desert (1)
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New Zealand (2)
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Black Hills (130)
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Canada
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Eastern Canada
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Newfoundland and Labrador
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Labrador (1)
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Ontario
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Cochrane District Ontario
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Timmins Ontario (1)
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Lanark County Ontario
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Perth Ontario (1)
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Ottawa Ontario (1)
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Sudbury Ontario (1)
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Thunder Bay District Ontario
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Quebec (1)
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Western Canada
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Alberta (3)
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British Columbia (1)
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Contwoyto Lake (1)
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Manitoba
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Bernic Lake (2)
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Tanco Pegmatite (2)
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Northwest Territories (3)
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Saskatchewan (13)
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Chicxulub Crater (1)
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Commonwealth of Independent States
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Uzbekistan (1)
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Elk Lake (1)
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Europe
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Erzgebirge
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Southern Europe
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Portugal
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Spain
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Ebro Basin (1)
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Western Europe
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Belgium (1)
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United Kingdom
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Great Britain
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England
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Isle of Wight England (1)
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Front Range (1)
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Homestake Mine (12)
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Mammoth Cave (2)
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North America
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Appalachian Basin (1)
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Appalachians (1)
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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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Dakota Aquifer (1)
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Great Lakes
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Lake Superior (1)
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Great Plains
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Northern Great Plains (11)
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Southern Great Plains (1)
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Gulf Coastal Plain (2)
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Keweenawan Rift (1)
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Missouri River basin (1)
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North American Cordillera (2)
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Rocky Mountains
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Northern Rocky Mountains (8)
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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 (2)
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Laramie Mountains (1)
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Little Belt Mountains (1)
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Medicine Bow Mountains (1)
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Wind River Range (1)
-
-
-
Sweetgrass Arch (2)
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Transcontinental Arch (1)
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Western Canada Sedimentary Basin (1)
-
Western Interior
-
Western Interior Seaway (25)
-
-
Williston Basin (23)
-
-
Permian Basin (1)
-
Raft River basin (1)
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Ruby Range (1)
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Sand Hills (1)
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South America
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Andes
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Cordillera Real (1)
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Bolivia (2)
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Brazil
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Amazonas Brazil (1)
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Guiana Shield (1)
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Venezuela (1)
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United States
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Alaska (1)
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Arizona
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Yavapai County Arizona (1)
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Arkansas (2)
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Bighorn Basin (2)
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California
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Kern County California (1)
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Cambridge Arch (1)
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Cedar Creek Anticline (2)
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Chadron Arch (1)
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Colorado
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Baca County Colorado (1)
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Larimer County Colorado (1)
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Pueblo County Colorado (1)
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Yuma County Colorado (1)
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Colorado Lineament (2)
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Colorado Plateau (3)
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Connecticut
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Fairfield County Connecticut (1)
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Delaware
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Denver Basin (3)
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Florida (1)
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High Plains Aquifer (1)
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Idaho (13)
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Illinois (3)
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Indiana (2)
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Iowa
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Calhoun County Iowa (1)
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Manson impact structure (2)
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Plymouth County Iowa (1)
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Pocahontas County Iowa (1)
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Woodbury County Iowa (2)
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Kansas
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Ellis County Kansas (1)
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Hamilton County Kansas (1)
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Logan County Kansas (1)
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Russell County Kansas (1)
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Sherman County Kansas (1)
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Kentucky
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Edmonson County Kentucky (2)
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Kentucky River Fault (1)
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Louisiana (1)
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Madison Aquifer (4)
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Maryland (1)
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Midcontinent (5)
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Midwest (2)
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Minnesota
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Big Stone County Minnesota (1)
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Chippewa County Minnesota (1)
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Lac qui Parle County Minnesota (2)
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Minnesota River valley (1)
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Redwood County Minnesota (1)
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Renville County Minnesota (1)
-
Stevens County Minnesota (1)
-
Traverse County Minnesota (1)
-
Wilkin County Minnesota (1)
-
Yellow Medicine County Minnesota (1)
-
-
Mississippi River (2)
-
Mississippi Valley
-
Upper Mississippi Valley (1)
-
-
Missouri
-
Saint Louis County Missouri
-
Saint Louis Missouri (1)
-
-
-
Missouri River (11)
-
Missouri River valley (7)
-
Montana
-
Beaverhead County Montana (1)
-
Big Snowy Mountains (1)
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Little Belt Mountains (1)
-
Madison County Montana (1)
-
-
Nebraska
-
Antelope County Nebraska (2)
-
Banner County Nebraska (1)
-
Box Butte County Nebraska (3)
-
Boyd County Nebraska (2)
-
Brown County Nebraska (5)
-
Cedar County Nebraska (2)
-
Cherry County Nebraska (7)
-
Dakota County Nebraska (2)
-
Dawes County Nebraska (10)
-
Dixon County Nebraska (2)
-
Holt County Nebraska (3)
-
Keya Paha County Nebraska (2)
-
Knox County Nebraska (5)
-
Morrill County Nebraska (1)
-
Sheridan County Nebraska (3)
-
Sioux County Nebraska (21)
-
-
Nevada (3)
-
New Hampshire
-
Cheshire County New Hampshire (1)
-
Grafton County New Hampshire (2)
-
-
New Madrid region (1)
-
New Mexico (6)
-
New York
-
Saint Lawrence County New York
-
Balmat-Edwards mining district (1)
-
-
-
North Dakota
-
Billings County North Dakota (1)
-
Bottineau County North Dakota (1)
-
Bowman County North Dakota (1)
-
Burke County North Dakota (1)
-
Dunn County North Dakota (1)
-
Emmons County North Dakota (1)
-
Golden Valley County North Dakota (1)
-
Logan County North Dakota (1)
-
Richland County North Dakota (1)
-
Slope County North Dakota (1)
-
Stark County North Dakota (2)
-
-
Ohio (1)
-
Oklahoma
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Meers Fault (1)
-
-
Oregon
-
Wheeler County Oregon (1)
-
-
Paradox Basin (1)
-
Pennsylvania
-
Dauphin County Pennsylvania
-
Harrisburg Pennsylvania (1)
-
-
-
Powder River basin (7)
-
Sevier orogenic belt (1)
-
South Carolina (2)
-
South Dakota
-
Badlands National Park (19)
-
Bennett County South Dakota (4)
-
Brule County South Dakota (6)
-
Buffalo County South Dakota (7)
-
Butte County South Dakota (7)
-
Charles Mix County South Dakota (3)
-
Clay County South Dakota (1)
-
Corson County South Dakota (7)
-
Custer County South Dakota (41)
-
Davison County South Dakota (1)
-
Dewey County South Dakota (6)
-
Fall River County South Dakota (10)
-
Grant County South Dakota (2)
-
Gregory County South Dakota (4)
-
Harding County South Dakota (5)
-
Harney Peak Granite (10)
-
Hughes County South Dakota (5)
-
Hyde County South Dakota (3)
-
Jackson County South Dakota (1)
-
Lake County South Dakota (1)
-
Lawrence County South Dakota (21)
-
Lyman County South Dakota (6)
-
Meade County South Dakota (7)
-
Mellette County South Dakota (1)
-
Minnehaha County South Dakota (1)
-
Moody County South Dakota (1)
-
Pennington County South Dakota
-
Rapid City South Dakota (3)
-
-
Roberts County South Dakota (1)
-
Shannon County South Dakota (7)
-
Stanley County South Dakota (1)
-
Todd County South Dakota (1)
-
Tripp County South Dakota (2)
-
Union County South Dakota (3)
-
Walworth County South Dakota (1)
-
Yankton County South Dakota (3)
-
Ziebach County South Dakota (2)
-
-
Tennessee (3)
-
Texas
-
Bexar County Texas (1)
-
Collin County Texas (1)
-
Comal County Texas (1)
-
Dallas County Texas (1)
-
Fort Worth Basin (1)
-
Hays County Texas (1)
-
Hemphill County Texas (1)
-
San Jacinto County Texas (1)
-
West Texas (1)
-
Williamson County Texas (1)
-
-
U. S. Rocky Mountains
-
Absaroka Range
-
Beartooth Mountains (1)
-
-
Bighorn Mountains (2)
-
Laramie Mountains (1)
-
Little Belt Mountains (1)
-
Medicine Bow Mountains (1)
-
Wind River Range (1)
-
-
Utah (9)
-
Washington
-
Clallam County Washington (1)
-
Grays Harbor County Washington (1)
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Pacific County Washington (1)
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Wahkiakum County Washington (1)
-
-
West Virginia (1)
-
Western U.S. (3)
-
Wisconsin (3)
-
Wyoming
-
Campbell County Wyoming (1)
-
Carbon County Wyoming
-
Shirley Basin (1)
-
-
Converse County Wyoming (2)
-
Crook County Wyoming (1)
-
Fremont County Wyoming (1)
-
Natrona County Wyoming (1)
-
Niobrara County Wyoming (3)
-
Teton County Wyoming (1)
-
Wind River Range (1)
-
-
Wyoming Province (7)
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Yavapai Province (1)
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White River (2)
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-
commodities
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brines (1)
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ceramic materials (1)
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energy sources (9)
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geothermal energy (2)
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metal ores
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gold ores (10)
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lead ores (2)
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lead-zinc deposits (1)
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polymetallic ores (1)
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pyrite ores (1)
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silver ores (3)
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tin ores (1)
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uranium ores (1)
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mineral deposits, genesis (17)
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mineral exploration (5)
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oil and gas fields (5)
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petroleum
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natural gas (20)
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potash (1)
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elements, isotopes
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boron (3)
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carbon
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C-13/C-12 (15)
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C-14 (4)
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organic carbon (2)
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hydrogen
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D/H (2)
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deuterium (2)
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isotope ratios (20)
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isotopes
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radioactive isotopes
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C-14 (4)
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stable isotopes
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C-13/C-12 (15)
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D/H (2)
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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 (1)
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O-18 (1)
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O-18/O-16 (16)
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S-34/S-32 (2)
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Sr-87/Sr-86 (2)
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metals
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actinides
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thorium (2)
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uranium (9)
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alkali metals
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cesium (1)
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lithium
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Li-6 (1)
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Li-7 (1)
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rubidium (2)
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sodium (2)
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alkaline earth metals
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barium (1)
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beryllium (1)
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magnesium (1)
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strontium
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Sr-87/Sr-86 (2)
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aluminum (3)
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cadmium (2)
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copper (1)
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gold (6)
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iron
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ferrous iron (1)
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lead (2)
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niobium (1)
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rare earths
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cerium (2)
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neodymium
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Nd-144/Nd-143 (1)
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tantalum (1)
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tin (3)
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zirconium (2)
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noble gases
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radon (1)
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oxygen
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O-18 (1)
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O-18/O-16 (16)
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phosphorus (1)
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selenium (1)
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silicon (2)
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sulfur
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S-34/S-32 (2)
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-
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fossils
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borings (2)
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burrows (7)
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Chordata
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Vertebrata
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Pisces
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Chondrichthyes
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Elasmobranchii
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Osteichthyes (1)
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Tetrapoda
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Amphibia
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Lissamphibia
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Anura (1)
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-
-
Aves
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Neornithes
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Neognathae
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Galliformes (1)
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-
-
-
Mammalia
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Theria
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Eutheria
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Artiodactyla
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Ruminantia
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Bovidae
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Bison
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Bison latifrons (2)
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-
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Tylopoda
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Camelidae (1)
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-
-
-
Carnivora
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Fissipeda
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Canidae (2)
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Mustelidae (1)
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-
-
Chiroptera (1)
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Insectivora
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Dermoptera (1)
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Lagomorpha (4)
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Perissodactyla
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Ceratomorpha
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Rhinocerotidae
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Rhinoceros (1)
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-
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Hippomorpha
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Equidae
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Equus (4)
-
-
-
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Proboscidea
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Elephantoidea
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Elephantidae
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Mammuthus (2)
-
-
-
-
Rodentia
-
Castoridae (4)
-
Myomorpha
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Eomyidae (2)
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-
Sciuromorpha
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Sciuridae (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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-
-
-
-
-
Reptilia
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Anapsida
-
Testudines
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Testudinidae (1)
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-
-
Diapsida
-
Archosauria
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Crocodilia (1)
-
dinosaurs
-
Ornithischia
-
Ceratopsia
-
Ceratopsidae
-
Triceratops (2)
-
-
-
Ornithopoda
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Hadrosauridae (2)
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-
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Saurischia
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Sauropodomorpha
-
Sauropoda
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Diplodocidae
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Diplodocus (1)
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-
-
-
Theropoda
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Coelurosauria (1)
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-
-
-
Pterosauria
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Pteranodon (1)
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-
-
Lepidosauria
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Squamata
-
Lacertilia
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Mosasauridae (8)
-
-
-
-
Sauropterygia
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Plesiosauria
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Elasmosauridae (1)
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-
-
-
-
-
-
-
coprolites (3)
-
fungi (1)
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Graptolithina
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Dendroidea (1)
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Graptoloidea (2)
-
-
ichnofossils
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Ophiomorpha (1)
-
-
Invertebrata
-
Arthropoda
-
Mandibulata
-
Crustacea
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Cirripedia (1)
-
Malacostraca
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Brachyura (1)
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-
Ostracoda (3)
-
-
Insecta
-
Pterygota
-
Neoptera
-
Endopterygota
-
Coleoptera (1)
-
Hymenoptera (1)
-
-
-
-
-
-
Trilobitomorpha
-
Trilobita
-
Ptychopariida (3)
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-
-
-
Echinodermata
-
Asterozoa
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Stelleroidea
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Asteroidea (1)
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-
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Crinozoa
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Crinoidea (2)
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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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Pterioida
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Pteriina
-
Inocerami
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Inoceramidae
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Inoceramus (1)
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-
-
-
-
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Cephalopoda
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Ammonoidea
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Ammonites (1)
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Baculites (5)
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Scaphites (4)
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Coleoidea (1)
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Nautiloidea
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Nautilus (4)
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Gastropoda (6)
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Hyolithes (1)
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Protista
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Foraminifera
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Fusulinina
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Fusulinidae (2)
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Rotaliina
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Buliminacea
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Uvigerinidae
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Uvigerina peregrina (1)
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Globigerinacea
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Heterohelicidae (1)
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Lagenidae (1)
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Radiolaria (1)
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Vermes
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Annelida (1)
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scolecodonts (1)
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microfossils
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Conodonta (5)
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Fusulinina
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Fusulinidae (2)
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scolecodonts (1)
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palynomorphs
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miospores
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pollen (3)
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Plantae
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diatoms (2)
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nannofossils (1)
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Spermatophyta
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problematic fossils (1)
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thallophytes (2)
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tracks (3)
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geochronology methods
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(U-Th)/He (2)
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Ar/Ar (2)
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fission-track dating (2)
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optically stimulated luminescence (3)
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paleomagnetism (2)
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Pb/Pb (2)
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Th/U (1)
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thermochronology (1)
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U/Pb (7)
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U/Th/Pb (2)
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uranium disequilibrium (3)
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geologic age
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Cenozoic
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Quaternary
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upper Holocene (2)
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Pleistocene
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Lake Agassiz (3)
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lower Pleistocene (1)
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middle Pleistocene (1)
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Pearlette Volcanic Ash (1)
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upper Pleistocene
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Weichselian
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upper Weichselian
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Allerod (1)
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upper Quaternary (2)
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Tertiary
-
Arikaree Group (7)
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Arikareean (3)
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Cypress Hills Formation (1)
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John Day Formation (1)
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lower Tertiary (1)
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middle Tertiary (1)
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Neogene
-
Hemphillian (1)
-
Miocene
-
Ash Hollow Formation (3)
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Barstovian (10)
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Clarendonian (4)
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Fleming Formation (1)
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lower Miocene
-
Hemingfordian (3)
-
-
middle Miocene (1)
-
upper Miocene (5)
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Valentine Formation (8)
-
-
Ogallala Formation (3)
-
Pliocene
-
lower Pliocene (1)
-
-
-
Paleogene
-
Chadron Formation (8)
-
Eocene
-
lower Eocene
-
Willwood Formation (1)
-
-
middle Eocene
-
Aycross Formation (1)
-
Bartonian (1)
-
-
Uintan (1)
-
upper Eocene
-
Chadronian (7)
-
Tepee Trail Formation (1)
-
-
-
lower Paleogene (1)
-
Oligocene
-
Brule Formation (18)
-
lower Oligocene (12)
-
upper Oligocene (2)
-
-
Paleocene
-
lower Paleocene
-
K-T boundary (4)
-
-
Ludlow Member (2)
-
Tongue River Member (1)
-
Tullock Member (1)
-
-
Renova Formation (1)
-
White River Group (13)
-
-
-
upper Cenozoic (1)
-
-
Laurentide ice sheet (2)
-
Mesozoic
-
Cretaceous
-
Colorado Group (1)
-
Dakota Formation (2)
-
Lower Cretaceous
-
Albian (3)
-
Fall River Formation (4)
-
Inyan Kara Group (2)
-
Lakota Formation (1)
-
Mannville Group (1)
-
Mowry Shale (3)
-
Newcastle Sandstone (4)
-
Skull Creek Shale (1)
-
-
Mancos Shale (1)
-
Middle Cretaceous (1)
-
Upper Cretaceous
-
Bearpaw Formation (2)
-
Belle Fourche Shale (1)
-
Bridge Creek Limestone Member (1)
-
Campanian
-
upper Campanian (6)
-
-
Carlile Shale (4)
-
Cenomanian
-
upper Cenomanian (1)
-
-
Djadokhta Formation (1)
-
Eagle Sandstone (1)
-
Ferron Sandstone Member (1)
-
Fox Hills Formation (15)
-
Fruitland Formation (1)
-
Gammon Ferruginous Member (1)
-
Greenhorn Limestone (5)
-
Gulfian
-
Eagle Ford Formation (1)
-
-
Hell Creek Formation (11)
-
Judith River Formation (1)
-
Kirtland Shale (1)
-
K-T boundary (4)
-
Lance Formation (2)
-
Laramie Formation (2)
-
Maestrichtian
-
upper Maestrichtian (1)
-
-
Niobrara Formation (10)
-
Pierre Shale (47)
-
Senonian (20)
-
Sharon Springs Member (3)
-
Tropic Shale (1)
-
Turonian (5)
-
-
-
Jurassic
-
Middle Jurassic
-
Callovian (1)
-
-
Twin Creek Limestone (1)
-
Upper Jurassic
-
Morrison Formation (2)
-
Oxfordian (1)
-
Stump Formation (1)
-
Sundance Formation (6)
-
Swift Formation (1)
-
-
-
Triassic
-
Red Peak Formation (2)
-
-
-
Paleozoic
-
Cambrian
-
Middle Cambrian (1)
-
Upper Cambrian
-
Steptoean (1)
-
Trempealeauan (2)
-
Wilberns Formation (1)
-
-
-
Carboniferous
-
Lower Carboniferous
-
Dinantian (2)
-
-
Mississippian
-
Charles Formation (2)
-
Harrodsburg Limestone (1)
-
Lower Mississippian
-
Chouteau Limestone (1)
-
Kinderhookian (1)
-
Osagian (1)
-
Tournaisian
-
upper Tournaisian (1)
-
-
-
Madison Group (6)
-
Middle Mississippian
-
Visean (1)
-
-
Mission Canyon Limestone (2)
-
Upper Mississippian
-
Meramecian
-
Saint Louis Limestone (1)
-
Salem Limestone (1)
-
-
-
-
Namurian (1)
-
Pennsylvanian (5)
-
Upper Carboniferous (1)
-
-
Deadwood Formation (8)
-
Devonian
-
Middle Devonian
-
Prairie Evaporite (1)
-
Winnipegosis Formation (2)
-
-
Upper Devonian
-
Birdbear Formation (1)
-
Duperow Formation (1)
-
-
-
lower Paleozoic (1)
-
middle Paleozoic (1)
-
Minnelusa Formation (4)
-
Ordovician
-
Lower Ordovician (1)
-
Middle Ordovician
-
Winnipeg Formation (3)
-
-
Viola Limestone (1)
-
-
Permian
-
Guadalupian
-
Bell Canyon Formation (1)
-
Brushy Canyon Formation (1)
-
Cherry Canyon Formation (1)
-
-
Kaibab Formation (1)
-
Lower Permian
-
Cherry Canyon Formation (1)
-
Leonardian
-
Bone Spring Limestone (1)
-
-
Wolfcampian (1)
-
-
-
Silurian (1)
-
upper Paleozoic
-
Bakken Formation (3)
-
Kaskaskia Sequence (1)
-
-
-
Phanerozoic (2)
-
Precambrian
-
Archean
-
Neoarchean (3)
-
-
upper Precambrian
-
Proterozoic
-
Algonkian
-
Baraboo Quartzite (1)
-
-
Huronian (1)
-
Mesoproterozoic (1)
-
Paleoproterozoic (8)
-
-
-
-
-
igneous rocks
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igneous rocks
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plutonic rocks
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diabase (1)
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granites
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leucogranite (4)
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-
lamprophyres
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minette (1)
-
-
pegmatite (32)
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-
volcanic rocks
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pyroclastics
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tuff (1)
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-
rhyolites (1)
-
-
-
volcanic ash (2)
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-
metamorphic rocks
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metamorphic rocks
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amphibolites (3)
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gneisses (5)
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impactites (1)
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metagabbro (1)
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metasedimentary rocks
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metagraywacke (2)
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metasomatic rocks (1)
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schists
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slates (1)
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minerals
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arsenides
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carbonates
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calcite (9)
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dawsonite (1)
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minerals (26)
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native elements
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oxides
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niobates
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-
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tantalates
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-
-
-
phosphates
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apatite (4)
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carbonate apatite (1)
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monazite (3)
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vivianite (1)
-
-
silicates
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chain silicates
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amphibole group
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clinoamphibole
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cummingtonite (1)
-
hornblende (3)
-
-
orthoamphibole
-
holmquistite (1)
-
-
-
pyroxene group
-
clinopyroxene
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spodumene (4)
-
-
-
-
framework silicates
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feldspar group
-
alkali feldspar
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microcline (3)
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perthite (1)
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sanidine (1)
-
-
plagioclase
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albite (1)
-
-
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silica minerals
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chalcedony (1)
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opal
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opal-CT (1)
-
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quartz (10)
-
-
zeolite group
-
clinoptilolite (1)
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-
-
-
orthosilicates
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nesosilicates
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andalusite (1)
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garnet group
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sillimanite (3)
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titanite group
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-
-
zircon group
-
zircon (9)
-
-
-
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ring silicates
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beryl (2)
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tourmaline group (3)
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sheet silicates
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clay minerals
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smectite (4)
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illite (2)
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mica group
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biotite (3)
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muscovite (6)
-
-
-
-
sulfates
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anhydrite (5)
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barite (1)
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gypsum (3)
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jarosite (1)
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sulfides
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iron sulfides (1)
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pyrite (3)
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pyrrhotite (1)
-
-
sulfosalts
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sulfostannates
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stannite (3)
-
-
-
uranium minerals (1)
-
-
Primary terms
-
absolute age (19)
-
Africa
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East Africa
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West Africa
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Antarctica
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Asia
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Far East
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Atlantic Ocean
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Atlantic Ocean Islands
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Australasia
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Australia
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bibliography (2)
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Canada
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Ontario
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-
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Quebec (1)
-
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Western Canada
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Alberta (3)
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Contwoyto Lake (1)
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Manitoba
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-
Tanco Pegmatite (2)
-
-
Northwest Territories (3)
-
Saskatchewan (13)
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Yukon Territory (1)
-
-
-
carbon
-
C-13/C-12 (15)
-
C-14 (4)
-
organic carbon (2)
-
-
Cenozoic
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Blancan (1)
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Quaternary
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Clovis (1)
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Holocene
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Middle Ages (1)
-
upper Holocene (2)
-
-
Pleistocene
-
Lake Agassiz (3)
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lower Pleistocene (1)
-
middle Pleistocene (1)
-
Pearlette Volcanic Ash (1)
-
upper Pleistocene
-
Weichselian
-
upper Weichselian
-
Allerod (1)
-
Bolling (1)
-
-
-
-
-
upper Quaternary (2)
-
-
Tertiary
-
Arikaree Group (7)
-
Arikareean (3)
-
Cypress Hills Formation (1)
-
John Day Formation (1)
-
lower Tertiary (1)
-
middle Tertiary (1)
-
Neogene
-
Hemphillian (1)
-
Miocene
-
Ash Hollow Formation (3)
-
Barstovian (10)
-
Clarendonian (4)
-
Fleming Formation (1)
-
lower Miocene
-
Hemingfordian (3)
-
-
middle Miocene (1)
-
upper Miocene (5)
-
Valentine Formation (8)
-
-
Ogallala Formation (3)
-
Pliocene
-
lower Pliocene (1)
-
-
-
Paleogene
-
Chadron Formation (8)
-
Eocene
-
lower Eocene
-
Willwood Formation (1)
-
-
middle Eocene
-
Aycross Formation (1)
-
Bartonian (1)
-
-
Uintan (1)
-
upper Eocene
-
Chadronian (7)
-
Tepee Trail Formation (1)
-
-
-
lower Paleogene (1)
-
Oligocene
-
Brule Formation (18)
-
lower Oligocene (12)
-
upper Oligocene (2)
-
-
Paleocene
-
lower Paleocene
-
K-T boundary (4)
-
-
Ludlow Member (2)
-
Tongue River Member (1)
-
Tullock Member (1)
-
-
Renova Formation (1)
-
White River Group (13)
-
-
-
upper Cenozoic (1)
-
-
ceramic materials (1)
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chemical analysis (8)
-
Chordata
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Vertebrata
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Pisces
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Chondrichthyes
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Elasmobranchii
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Selachii (1)
-
-
-
Osteichthyes (1)
-
-
Tetrapoda
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Amphibia
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Lissamphibia
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Anura (1)
-
-
-
Aves
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Neornithes
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Neognathae
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Galliformes (1)
-
-
-
-
Mammalia
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Theria
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Eutheria
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Artiodactyla
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Ruminantia
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Bovidae
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Bison
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Bison latifrons (2)
-
-
-
Tylopoda
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Camelidae (1)
-
-
-
-
Carnivora
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Fissipeda
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Canidae (2)
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Mustelidae (1)
-
-
-
Chiroptera (1)
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Insectivora
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Dermoptera (1)
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Lagomorpha (4)
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Perissodactyla
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Ceratomorpha
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Rhinocerotidae
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Rhinoceros (1)
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-
-
Hippomorpha
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Equidae
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Equus (4)
-
-
-
-
Proboscidea
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Elephantoidea
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Elephantidae
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Mammuthus (2)
-
-
-
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Rodentia
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Castoridae (4)
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Myomorpha
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Eomyidae (2)
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Sciuromorpha
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Sciuridae (2)
-
-
-
-
Metatheria
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Marsupialia
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Polyprotodontia
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Didelphidae (1)
-
-
-
-
-
-
Reptilia
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Anapsida
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Testudines
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Testudinidae (1)
-
-
-
Diapsida
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Archosauria
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Crocodilia (1)
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dinosaurs
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Ornithischia
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Ceratopsia
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Ceratopsidae
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Triceratops (2)
-
-
-
Ornithopoda
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Hadrosauridae (2)
-
-
-
Saurischia
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Sauropodomorpha
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Sauropoda
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Diplodocidae
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Diplodocus (1)
-
-
-
-
Theropoda
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Coelurosauria (1)
-
-
-
-
Pterosauria
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Pteranodon (1)
-
-
-
Lepidosauria
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Squamata
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Lacertilia
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Mosasauridae (8)
-
-
-
-
Sauropterygia
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Plesiosauria
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Elasmosauridae (1)
-
-
-
-
-
-
-
-
clay mineralogy (7)
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climate change (4)
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conservation (1)
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continental drift (2)
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Europe
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igneous rocks
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pegmatite (32)
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inclusions
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Invertebrata
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Insecta
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Trilobitomorpha
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Echinodermata
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Globigerinacea
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Mesozoic
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Cretaceous
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Colorado Group (1)
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Dakota Formation (2)
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Lower Cretaceous
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Albian (3)
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Fall River Formation (4)
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Inyan Kara Group (2)
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Lakota Formation (1)
-
Mannville Group (1)
-
Mowry Shale (3)
-
Newcastle Sandstone (4)
-
Skull Creek Shale (1)
-
-
Mancos Shale (1)
-
Middle Cretaceous (1)
-
Upper Cretaceous
-
Bearpaw Formation (2)
-
Belle Fourche Shale (1)
-
Bridge Creek Limestone Member (1)
-
Campanian
-
upper Campanian (6)
-
-
Carlile Shale (4)
-
Cenomanian
-
upper Cenomanian (1)
-
-
Djadokhta Formation (1)
-
Eagle Sandstone (1)
-
Ferron Sandstone Member (1)
-
Fox Hills Formation (15)
-
Fruitland Formation (1)
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Gammon Ferruginous Member (1)
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Greenhorn Limestone (5)
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Gulfian
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Eagle Ford Formation (1)
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Hell Creek Formation (11)
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Judith River Formation (1)
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Kirtland Shale (1)
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K-T boundary (4)
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Lance Formation (2)
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Laramie Formation (2)
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Maestrichtian
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upper Maestrichtian (1)
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Niobrara Formation (10)
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Pierre Shale (47)
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Senonian (20)
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Sharon Springs Member (3)
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Tropic Shale (1)
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Turonian (5)
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Jurassic
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Middle Jurassic
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Callovian (1)
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Twin Creek Limestone (1)
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Upper Jurassic
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Morrison Formation (2)
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Oxfordian (1)
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Stump Formation (1)
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Sundance Formation (6)
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Swift Formation (1)
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Triassic
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Red Peak Formation (2)
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metal ores
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Sr-87/Sr-86 (2)
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Nd-144/Nd-143 (1)
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tantalum (1)
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metamorphic rocks
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North America
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Sweetgrass Arch (2)
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Western Canada Sedimentary Basin (1)
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Western Interior
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Western Interior Seaway (25)
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Williston Basin (23)
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oil and gas fields (5)
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oxygen
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O-18 (1)
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O-18/O-16 (16)
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Paleozoic
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Cambrian
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Middle Cambrian (1)
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Upper Cambrian
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Steptoean (1)
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Trempealeauan (2)
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Wilberns Formation (1)
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Carboniferous
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Lower Carboniferous
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Dinantian (2)
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Mississippian
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Charles Formation (2)
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Harrodsburg Limestone (1)
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Lower Mississippian
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Chouteau Limestone (1)
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Kinderhookian (1)
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Osagian (1)
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Tournaisian
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upper Tournaisian (1)
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Madison Group (6)
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Middle Mississippian
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Visean (1)
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Mission Canyon Limestone (2)
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Upper Mississippian
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Meramecian
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Saint Louis Limestone (1)
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Salem Limestone (1)
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-
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Namurian (1)
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Pennsylvanian (5)
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Upper Carboniferous (1)
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Deadwood Formation (8)
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Devonian
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Middle Devonian
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Prairie Evaporite (1)
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Winnipegosis Formation (2)
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Upper Devonian
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Birdbear Formation (1)
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Duperow Formation (1)
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lower Paleozoic (1)
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middle Paleozoic (1)
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Minnelusa Formation (4)
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Ordovician
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Lower Ordovician (1)
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Middle Ordovician
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Winnipeg Formation (3)
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Viola Limestone (1)
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Permian
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Guadalupian
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Bell Canyon Formation (1)
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Brushy Canyon Formation (1)
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Cherry Canyon Formation (1)
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Kaibab Formation (1)
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Lower Permian
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Cherry Canyon Formation (1)
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Leonardian
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Bone Spring Limestone (1)
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Wolfcampian (1)
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Silurian (1)
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upper Paleozoic
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Bakken Formation (3)
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Kaskaskia Sequence (1)
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palynology (1)
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palynomorphs
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Dinoflagellata (1)
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Plantae
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Spermatophyta
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Angiospermae
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Dicotyledoneae (1)
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Monocotyledoneae
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Gramineae (2)
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plate tectonics (8)
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pollution (7)
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potash (1)
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Precambrian
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Archean
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Neoarchean (3)
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upper Precambrian
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Proterozoic
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Algonkian
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Baraboo Quartzite (1)
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Huronian (1)
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Paleoproterozoic (8)
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problematic fossils (1)
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remote sensing (4)
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sedimentary rocks
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chalk (3)
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packstone (1)
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chemically precipitated rocks
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clastic rocks
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coal
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sedimentary structures
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sedimentation (26)
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