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NARROW
Format
Article Type
Journal
Publisher
Section
GeoRef Subject
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all geography including DSDP/ODP Sites and Legs
-
Africa
-
North Africa
-
Algeria (1)
-
Atlas Mountains
-
Moroccan Atlas Mountains
-
Anti-Atlas (1)
-
-
-
Libya
-
Cyrenaica (1)
-
-
Morocco
-
Moroccan Atlas Mountains
-
Anti-Atlas (1)
-
-
-
Tindouf Basin (1)
-
Western Sahara (1)
-
-
West African Shield (1)
-
-
Arctic region (1)
-
Asia
-
Arabian Peninsula
-
Arabian Shield (1)
-
-
Far East
-
China (1)
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-
Indian Peninsula
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India
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Orissa India (1)
-
-
-
Middle East
-
Dead Sea Rift (1)
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Syria (1)
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Turkey
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North Anatolian Fault (1)
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-
-
Siberian Platform (1)
-
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Caledonides (1)
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Canada
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Arctic Archipelago (2)
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Eastern Canada
-
Maritime Provinces
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New Brunswick (1)
-
-
Quebec
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Gaspe Peninsula (1)
-
-
-
Nunavut
-
Ellesmere Island (1)
-
-
Queen Elizabeth Islands
-
Ellesmere Island (1)
-
-
Richardson Mountains (2)
-
Western Canada
-
Alberta (2)
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British Columbia
-
Dogtooth Mountains (1)
-
-
Canadian Cordillera (8)
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Canadian Rocky Mountains (1)
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Northwest Territories (2)
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Yukon Territory (2)
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-
-
Caribbean region (1)
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Chocolate Mountains (1)
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Coast Ranges (1)
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Commonwealth of Independent States
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Russian Federation
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Bashkortostan Russian Federation (1)
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Chelyabinsk Russian Federation (2)
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Siberian Platform (1)
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Voronezh Russian Federation
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Voronezh Anteclise (1)
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Urals
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Southern Urals (2)
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Dunnage Zone (2)
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Europe
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Bashkortostan Russian Federation (1)
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Istranca Mountains (1)
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Southern Europe
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Italy
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Abruzzi Italy (1)
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Apennines
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Central Apennines (1)
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Latium Italy (1)
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Umbria Italy (1)
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Thrace (1)
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Voronezh Russian Federation
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Voronezh Anteclise (1)
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Western Europe
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Belgium
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Brabant Massif (1)
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Grandfather Mountain (1)
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Green Mountains (2)
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North America
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Appalachians
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Blue Ridge Mountains (5)
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Blue Ridge Province (4)
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Central Appalachians (7)
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Northern Appalachians (3)
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Piedmont (1)
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Southern Appalachians (6)
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Valley and Ridge Province (9)
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-
Kootenay Arc (3)
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North American Cordillera
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Canadian Cordillera (8)
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Omineca Belt (4)
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Purcell Mountains (6)
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Rocky Mountain Trench (2)
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Rocky Mountains
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Canadian Rocky Mountains (1)
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Selkirk Mountains (1)
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U. S. Rocky Mountains (1)
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Rocky Mountains foreland (2)
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Shuswap Complex (1)
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Western Canada Sedimentary Basin (1)
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Western Overthrust Belt (1)
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-
Pacific Ocean
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North Pacific
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Northwest Pacific
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Kuril Trench (1)
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-
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West Pacific
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Northwest Pacific
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Kuril Trench (1)
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Permian Basin (1)
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Pulaski Fault (1)
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Russian Platform (1)
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Saltville Fault (1)
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San Andreas Fault (1)
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Santa Maria Basin (1)
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South America
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Andes
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Venezuelan Andes (1)
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Argentina (1)
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Venezuela
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Merida Venezuela (1)
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Venezuelan Andes (1)
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-
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South Mountain (1)
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United States
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Alabama
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Jefferson County Alabama (1)
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Saint Clair County Alabama (1)
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Talladega County Alabama (1)
-
-
Alaska
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Alaska Range (1)
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Arctic National Wildlife Refuge (1)
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Brooks Range
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Sadlerochit Mountains (1)
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Talkeetna Mountains (1)
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Allegheny Plateau (1)
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Ardmore Basin (1)
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Blue Ridge Mountains (5)
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Bronson Hill Anticlinorium (3)
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California
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Fresno County California (1)
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Imperial County California (1)
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Kings County California (1)
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San Joaquin Valley (1)
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Santa Barbara County California (1)
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Southern California (1)
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Transverse Ranges (1)
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Ventura Basin (1)
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Ventura County California
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Ventura California (1)
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-
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Connecticut
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Middlesex County Connecticut (1)
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New Haven County Connecticut (1)
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Connecticut Valley (1)
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Eastern U.S.
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Southeastern U.S. (1)
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Idaho
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Bonner County Idaho (1)
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Maine
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Aroostook County Maine (1)
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Chain Lakes Massif (1)
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Piscataquis County Maine (1)
-
-
Maryland
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Washington County Maryland (2)
-
-
Massachusetts
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Franklin County Massachusetts (1)
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-
Merrimack Synclinorium (1)
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Midcontinent (1)
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Minnesota
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Lake County Minnesota (1)
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Saint Louis County Minnesota (1)
-
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Montana
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Flathead County Montana (1)
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Lincoln County Montana (3)
-
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New England (2)
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New Hampshire
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Cheshire County New Hampshire (1)
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Grafton County New Hampshire (1)
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-
Oklahoma
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Arbuckle Mountains (1)
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Criner Hills (1)
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Pennsylvania (1)
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Tennessee (1)
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Texas (1)
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U. S. Rocky Mountains (1)
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Vermont
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Windham County Vermont (1)
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Virginia
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Culpeper County Virginia (1)
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Fauquier County Virginia (1)
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Loudoun County Virginia (1)
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Rappahannock County Virginia (1)
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Warren County Virginia (1)
-
-
West Virginia
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Grant County West Virginia (1)
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Hampshire County West Virginia (1)
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Hardy County West Virginia (1)
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Mineral County West Virginia (1)
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Pendleton County West Virginia (1)
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USSR (1)
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commodities
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energy sources (1)
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industrial minerals (1)
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metal ores (1)
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mineral resources (1)
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oil and gas fields (3)
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petroleum
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natural gas (1)
-
-
-
elements, isotopes
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carbon
-
C-13/C-12 (2)
-
-
isotope ratios (2)
-
isotopes
-
stable isotopes
-
C-13/C-12 (2)
-
O-18/O-16 (1)
-
Sr-87/Sr-86 (2)
-
-
-
metals
-
alkaline earth metals
-
strontium
-
Sr-87/Sr-86 (2)
-
-
-
-
oxygen
-
O-18/O-16 (1)
-
-
-
fossils
-
Invertebrata
-
Arthropoda
-
Trilobitomorpha
-
Trilobita
-
Odontopleurida (1)
-
-
-
-
-
microfossils (2)
-
palynomorphs
-
acritarchs (1)
-
miospores
-
pollen (1)
-
-
-
-
geochronology methods
-
Ar/Ar (6)
-
infrared stimulated luminescence (1)
-
K/Ar (2)
-
paleomagnetism (1)
-
U/Pb (7)
-
-
geologic age
-
Cenozoic
-
Quaternary
-
Pleistocene
-
upper Pleistocene (1)
-
-
-
Tertiary
-
lower Tertiary (1)
-
Neogene
-
Miocene
-
lower Miocene (1)
-
-
-
Paleogene
-
Eocene (3)
-
Oligocene (1)
-
-
-
-
Mesozoic
-
Cretaceous
-
Lower Cretaceous (1)
-
Upper Cretaceous (2)
-
-
Jurassic
-
Fernie Formation (1)
-
Middle Jurassic (1)
-
Upper Jurassic
-
Kimmeridgian (1)
-
-
-
-
Paleozoic
-
Cambrian
-
Acadian (1)
-
Lower Cambrian
-
Rome Formation (2)
-
-
Middle Cambrian (1)
-
-
Carboniferous
-
Lower Carboniferous
-
Dinantian (1)
-
-
Mississippian
-
Lower Mississippian
-
Kayak Shale (1)
-
-
-
Upper Carboniferous (1)
-
-
Devonian
-
Lower Devonian (1)
-
Upper Devonian
-
Palliser Formation (1)
-
-
-
Knox Group (1)
-
lower Paleozoic (1)
-
Matapedia Group (2)
-
middle Paleozoic (1)
-
Ordovician
-
Martinsburg Formation (1)
-
Upper Ordovician
-
Ashgillian (1)
-
Reedsville Formation (1)
-
-
-
Silurian
-
Lower Silurian
-
Llandovery (1)
-
-
-
upper Paleozoic (1)
-
-
Phanerozoic (1)
-
Precambrian
-
Archean
-
Gangpur Series (1)
-
-
Catoctin Formation (3)
-
Eocambrian (2)
-
Purcell System (3)
-
upper Precambrian
-
Proterozoic
-
Mesoproterozoic
-
Belt Supergroup (2)
-
Wumishan Formation (1)
-
-
Neoproterozoic
-
Cryogenian (1)
-
Ediacaran (1)
-
Lynchburg Formation (1)
-
Riphean
-
Taratash Complex (1)
-
-
Tonian (1)
-
Vendian (1)
-
-
Sinian
-
Wumishan Formation (1)
-
-
Windermere System (1)
-
-
-
-
-
igneous rocks
-
igneous rocks
-
plutonic rocks
-
gabbros (1)
-
granites (3)
-
quartz monzonite (1)
-
ultramafics (1)
-
-
volcanic rocks
-
basalts
-
mid-ocean ridge basalts (1)
-
-
-
-
-
metamorphic rocks
-
metamorphic rocks
-
amphibolites (1)
-
gneisses
-
augen gneiss (1)
-
biotite gneiss (1)
-
-
metaigneous rocks
-
metabasalt (2)
-
metagranite (1)
-
-
metasedimentary rocks (5)
-
mylonites (1)
-
phyllites (1)
-
quartzites (2)
-
schists
-
greenstone (1)
-
-
slates (1)
-
-
turbidite (1)
-
-
minerals
-
silicates
-
chain silicates
-
amphibole group
-
clinoamphibole
-
hornblende (1)
-
-
-
-
framework silicates
-
feldspar group
-
alkali feldspar
-
K-feldspar (1)
-
-
-
-
orthosilicates
-
nesosilicates
-
titanite group
-
titanite (1)
-
-
zircon group
-
zircon (5)
-
-
-
-
sheet silicates
-
mica group
-
biotite (1)
-
muscovite (3)
-
-
-
-
-
Primary terms
-
absolute age (11)
-
Africa
-
North Africa
-
Algeria (1)
-
Atlas Mountains
-
Moroccan Atlas Mountains
-
Anti-Atlas (1)
-
-
-
Libya
-
Cyrenaica (1)
-
-
Morocco
-
Moroccan Atlas Mountains
-
Anti-Atlas (1)
-
-
-
Tindouf Basin (1)
-
Western Sahara (1)
-
-
West African Shield (1)
-
-
Arctic region (1)
-
Asia
-
Arabian Peninsula
-
Arabian Shield (1)
-
-
Far East
-
China (1)
-
-
Indian Peninsula
-
India
-
Orissa India (1)
-
-
-
Middle East
-
Dead Sea Rift (1)
-
Syria (1)
-
Turkey
-
North Anatolian Fault (1)
-
-
-
Siberian Platform (1)
-
-
Canada
-
Arctic Archipelago (2)
-
Eastern Canada
-
Maritime Provinces
-
New Brunswick (1)
-
-
Quebec
-
Gaspe Peninsula (1)
-
-
-
Nunavut
-
Ellesmere Island (1)
-
-
Queen Elizabeth Islands
-
Ellesmere Island (1)
-
-
Richardson Mountains (2)
-
Western Canada
-
Alberta (2)
-
British Columbia
-
Dogtooth Mountains (1)
-
-
Canadian Cordillera (8)
-
Canadian Rocky Mountains (1)
-
Northwest Territories (2)
-
Yukon Territory (2)
-
-
-
carbon
-
C-13/C-12 (2)
-
-
Caribbean region (1)
-
Cenozoic
-
Quaternary
-
Pleistocene
-
upper Pleistocene (1)
-
-
-
Tertiary
-
lower Tertiary (1)
-
Neogene
-
Miocene
-
lower Miocene (1)
-
-
-
Paleogene
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Eocene (3)
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Oligocene (1)
-
-
-
-
continental slope (1)
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crust (16)
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deformation (14)
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diagenesis (1)
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earthquakes (1)
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economic geology (1)
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energy sources (1)
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engineering geology (1)
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Europe
-
Bashkortostan Russian Federation (1)
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Istranca Mountains (1)
-
Southern Europe
-
Italy
-
Abruzzi Italy (1)
-
Apennines
-
Central Apennines (1)
-
-
Latium Italy (1)
-
Umbria Italy (1)
-
-
-
Thrace (1)
-
Voronezh Russian Federation
-
Voronezh Anteclise (1)
-
-
Western Europe
-
Belgium
-
Brabant Massif (1)
-
-
-
-
faults (43)
-
folds (78)
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foliation (4)
-
fractures (4)
-
geochemistry (4)
-
geochronology (5)
-
geomorphology (1)
-
geophysical methods (17)
-
igneous rocks
-
plutonic rocks
-
gabbros (1)
-
granites (3)
-
quartz monzonite (1)
-
ultramafics (1)
-
-
volcanic rocks
-
basalts
-
mid-ocean ridge basalts (1)
-
-
-
-
inclusions (1)
-
industrial minerals (1)
-
intrusions (8)
-
Invertebrata
-
Arthropoda
-
Trilobitomorpha
-
Trilobita
-
Odontopleurida (1)
-
-
-
-
-
isostasy (1)
-
isotopes
-
stable isotopes
-
C-13/C-12 (2)
-
O-18/O-16 (1)
-
Sr-87/Sr-86 (2)
-
-
-
lineation (2)
-
magmas (1)
-
maps (2)
-
Mesozoic
-
Cretaceous
-
Lower Cretaceous (1)
-
Upper Cretaceous (2)
-
-
Jurassic
-
Fernie Formation (1)
-
Middle Jurassic (1)
-
Upper Jurassic
-
Kimmeridgian (1)
-
-
-
-
metal ores (1)
-
metals
-
alkaline earth metals
-
strontium
-
Sr-87/Sr-86 (2)
-
-
-
-
metamorphic rocks
-
amphibolites (1)
-
gneisses
-
augen gneiss (1)
-
biotite gneiss (1)
-
-
metaigneous rocks
-
metabasalt (2)
-
metagranite (1)
-
-
metasedimentary rocks (5)
-
mylonites (1)
-
phyllites (1)
-
quartzites (2)
-
schists
-
greenstone (1)
-
-
slates (1)
-
-
metamorphism (9)
-
mineral resources (1)
-
Mohorovicic discontinuity (1)
-
North America
-
Appalachians
-
Blue Ridge Mountains (5)
-
Blue Ridge Province (4)
-
Central Appalachians (7)
-
Northern Appalachians (3)
-
Piedmont (1)
-
Southern Appalachians (6)
-
Valley and Ridge Province (9)
-
-
Kootenay Arc (3)
-
North American Cordillera
-
Canadian Cordillera (8)
-
-
Omineca Belt (4)
-
Purcell Mountains (6)
-
Rocky Mountain Trench (2)
-
Rocky Mountains
-
Canadian Rocky Mountains (1)
-
Selkirk Mountains (1)
-
U. S. Rocky Mountains (1)
-
-
Rocky Mountains foreland (2)
-
Shuswap Complex (1)
-
Western Canada Sedimentary Basin (1)
-
Western Overthrust Belt (1)
-
-
ocean floors (1)
-
oceanography (1)
-
oil and gas fields (3)
-
orogeny (15)
-
oxygen
-
O-18/O-16 (1)
-
-
Pacific Ocean
-
North Pacific
-
Northwest Pacific
-
Kuril Trench (1)
-
-
-
West Pacific
-
Northwest Pacific
-
Kuril Trench (1)
-
-
-
-
paleogeography (1)
-
paleomagnetism (1)
-
Paleozoic
-
Cambrian
-
Acadian (1)
-
Lower Cambrian
-
Rome Formation (2)
-
-
Middle Cambrian (1)
-
-
Carboniferous
-
Lower Carboniferous
-
Dinantian (1)
-
-
Mississippian
-
Lower Mississippian
-
Kayak Shale (1)
-
-
-
Upper Carboniferous (1)
-
-
Devonian
-
Lower Devonian (1)
-
Upper Devonian
-
Palliser Formation (1)
-
-
-
Knox Group (1)
-
lower Paleozoic (1)
-
Matapedia Group (2)
-
middle Paleozoic (1)
-
Ordovician
-
Martinsburg Formation (1)
-
Upper Ordovician
-
Ashgillian (1)
-
Reedsville Formation (1)
-
-
-
Silurian
-
Lower Silurian
-
Llandovery (1)
-
-
-
upper Paleozoic (1)
-
-
palynomorphs
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acritarchs (1)
-
miospores
-
pollen (1)
-
-
-
paragenesis (1)
-
petroleum
-
natural gas (1)
-
-
petrology (4)
-
Phanerozoic (1)
-
plate tectonics (11)
-
Precambrian
-
Archean
-
Gangpur Series (1)
-
-
Catoctin Formation (3)
-
Eocambrian (2)
-
Purcell System (3)
-
upper Precambrian
-
Proterozoic
-
Mesoproterozoic
-
Belt Supergroup (2)
-
Wumishan Formation (1)
-
-
Neoproterozoic
-
Cryogenian (1)
-
Ediacaran (1)
-
Lynchburg Formation (1)
-
Riphean
-
Taratash Complex (1)
-
-
Tonian (1)
-
Vendian (1)
-
-
Sinian
-
Wumishan Formation (1)
-
-
Windermere System (1)
-
-
-
-
sea-level changes (1)
-
sedimentary petrology (1)
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sedimentary rocks
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carbonate rocks
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dolostone (1)
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chemically precipitated rocks
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evaporites (1)
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clastic rocks
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conglomerate (2)
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sandstone (2)
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shale (2)
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siltstone (1)
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sedimentary structures
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biogenic structures
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carbonate banks (1)
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planar bedding structures
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bedding (1)
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cross-bedding (1)
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cut and fill (1)
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-
-
sedimentation (2)
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seismology (1)
-
South America
-
Andes
-
Venezuelan Andes (1)
-
-
Argentina (1)
-
Venezuela
-
Merida Venezuela (1)
-
Venezuelan Andes (1)
-
-
-
stratigraphy (5)
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structural analysis (14)
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structural geology (30)
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tectonics
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neotectonics (4)
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tectonophysics (1)
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United States
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GeoRef Categories
Era and Period
Epoch and Age
Book Series
Date
Availability
anticlinoria
Proterozoic and Paleozoic evolution of the Blue Ridge geologic province in northern Virginia, USA Available to Purchase
ABSTRACT This field guide presents a one-day trip across the northern Virginia Blue Ridge geologic province and highlights published geologic mapping of Mesoproterozoic rocks that constitute the core of the Blue Ridge anticlinorium and Neoproterozoic cover-sequence rocks on the fold limbs. The guide presents zircon SHRIMP (sensitive high-resolution ion microprobe) U-Pb crystallization ages of granitoid rocks and discusses the tectonic and petrologic evolution of basement rocks during the Mesoproterozoic. U-Pb data show more of a continuum for Blue Ridge Mesoproterozoic magmatic events, from ca. 1.18–1.05 Ga, than previous U-Pb TIMS (thermal ionization mass spectrometry)-based models that had three distinct episodes of plutonic intrusion. All of the younger dated rocks are found west of the N-S–elongate batholith of the Neoproterozoic Robertson River Igneous Suite, suggesting that the batholith occupies a fundamental Mesoproterozoic crustal boundary that was likely a fault. Narrow belts of paragneiss may represent remnants of pre-intrusive country rock, but some were deposited close to 1 Ga according to detrital zircon U-Pb ages. For late Neoproterozoic geology, the guide focuses on lithologies and structures associated with early rifting of the Rodinia supercontinent, including small rift basins preserved on the eastern limb of the anticlinorium. These basins have locally thickened packages of clastic metasedimentary rocks that strike into and truncate abruptly against Mesoproterozoic basement along apparent steep normal faults. Both basement and cover were intruded by NE-SE–striking and steeply dipping, few-m-wide diabase dikes that were feeders to late Neoproterozoic Catoctin Formation metabasalt that overlies the rift sediments. The relatively weak dikes facilitated the deformation that led to the formation of the Blue Ridge anticlinorium during the middle to late Paleozoic as the vertical dikes were transposed and rotated during formation of the penetrative cleavage. This field trip generally follows the GSA guide published in GSA Field Guide 57 (available at https://pubs.geoscienceworld.org/gsa): Burton, W.C., and Schindler, J.S., 2020, Proterozoic and Paleozoic evolution of the Blue Ridge geologic province in northern Virginia, USA, in Swezey, C.S., and Carter, M.W., eds., Geology Field Trips in and around the U.S. Capital: Geological Society of America Field Guide 57, p. 1–19, https://doi.org/10.1130/2020.0057(01) .
Structure, metamorphism, and mica 40 Ar/ 39 Ar thermochronology of the southern Purcell anticlinorium and its transition into the central Kootenay arc, Omineca belt, southeastern British Columbia Available to Purchase
Neoproterozoic Deposits of the Bashkir Mega-Anticlinorium (Southern Urals): State of the Art in Regional Stratigraphy Available to Purchase
Late Pleistocene rates of rock uplift and faulting at the boundary between the southern Coast Ranges and the western Transverse Ranges in California from reconstruction and luminescence dating of the Orcutt Formation Open Access
Gravitational Collapse of Anteclises and Its Probable Impact on the Neotectonics of Platforms and Passive Continental Margins (by the Example of the East European Platform) Available to Purchase
New paleontological evidence for complex middle Paleozoic tectonic evolution in the Appalachian western Blue Ridge Available to Purchase
Numerical Modeling of the Sources of Magnetic Anomalies in the South Urals Earth’s Crust 1 Available to Purchase
Geology along the Blue Ridge Parkway in Virginia Available to Purchase
Abstract Detailed geologic mapping and new SHRIMP (sensitive high-resolution ion microprobe) U-Pb zircon, Ar/Ar, Lu-Hf, 14 C, luminescence (optically stimulated), thermochronology (fission-track), and palynology reveal the complex Mesoproterozoic to Quaternary geology along the ~350 km length of the Blue Ridge Parkway in Virginia. Traversing the boundary of the central and southern Appalachians, rocks along the parkway showcase the transition from the para-autochthonous Blue Ridge anticlinorium of northern and central Virginia to the allochthonous eastern Blue Ridge in southern Virginia. From mile post (MP) 0 near Waynesboro, Virginia, to ~MP 124 at Roanoke, the parkway crosses the unconformable to faulted boundary between Mesoproterozoic basement in the core of the Blue Ridge anticlinorium and Neoproterozoic to Cambrian metasedimentary and metavolcanic cover rocks on the western limb of the structure. Mesoproterozoic basement rocks comprise two groups based on SHRIMP U-Pb zircon geochronology: Group I rocks (1.2-1.14 Ga) are strongly foliated orthogneisses, and Group II rocks (1.08-1.00 Ga) are granitoids that mostly lack obvious Mesoproterozoic deformational features. Neoproterozoic to Cambrian cover rocks on the west limb of the anticlinorium include the Swift Run and Catoctin Formations, and constituent formations of the Chilhowee Group. These rocks unconformably overlie basement, or abut basement along steep reverse faults. Rocks of the Chilhowee Group are juxtaposed against Cambrian rocks of the Valley and Ridge province along southeast- and northwest-dipping, high-angle reverse faults. South of the James River (MP 64), Chilhowee Group and basement rocks occupy the hanging wall of the nearly flat-lying Blue Ridge thrust fault and associated splays. South of the Red Valley high-strain zone (MP 144.5), the parkway crosses into the wholly allochthonous eastern Blue Ridge, comprising metasedimentary and meta-igneous rocks assigned to the Wills Ridge, Ashe, and Alligator Back Formations. These rocks are bound by numerous faults, including the Rock Castle Creek fault that separates Ashe Formation rocks from Alligator Back Formation rocks in the core of the Ararat River synclinorium. The lack of unequivocal paleontologic or geochronologic ages for any of these rock sequences, combined with fundamental and conflicting differences in tectonogenetic models, compound the problem of regional correlation with Blue Ridge cover rocks to the north. The geologic transition from the central to southern Appalachians is also marked by a profound change in landscape and surficial deposits. In central Virginia, the Blue Ridge consists of narrow ridges that are held up by resistant but contrasting basement and cover lithologies. These ridges have shed eroded material from their crests to the base of the mountain fronts in the form of talus slopes, debris flows, and alluvial-colluvial fans for perhaps 10 m.y. South of Roanoke, however, ridges transition into a broad hilly plateau, flanked on the east by the Blue Ridge escarpment and the eastern Continental Divide. Here, deposits of rounded pebbles, cobbles, and boulders preserve remnants of ancestral west-flowing drainage systems. Both bedrock and surficial geologic processes provide an array of economic deposits along the length of the Blue Ridge Parkway corridor in Virginia, including base and precious metals and industrial minerals. However, common stone was the most important commodity for creating the Blue Ridge Parkway, which yielded building stone for overlooks and tunnels, or crushed stone for road base and pavement.
Evolution of Strike-Slip Duplexes and Wrench-Related Folding in the Central Part of Al Jabal Al Akhdar, NE Libya Available to Purchase
Timing of tectonometamorphism across the Green Mountain anticlinorium, northern Vermont Appalachians: 40 Ar/ 39 Ar data and correlations with southern Quebec Available to Purchase
Episodic Growth of the Chocolate Mountains Anticlinorium Recorded By the Neogene Bear Canyon Conglomerate, Southeastern California, U.S.A Available to Purchase
Along-strike variations and internal details of chevron-style, flexural-slip thrust-propagation folds within the southern Livingstone Range anticlinorium, a paleohydrocarbon reservoir in southern Alberta Foothills, Canada Available to Purchase
Stable-isotope geochemistry of syntectonic veins in Paleozoic carbonate rocks in the Livingstone Range anticlinorium and their significance to the thermal and fluid evolution of the southern Canadian foreland thrust and fold belt Available to Purchase
Stratigraphy, structure, and tectonics: An east-to-west transect of the Blue Ridge and Valley and Ridge provinces of northern Virginia and West Virginia Available to Purchase
Abstract This field guide covers a two-day east-to-west transect of the Blue Ridge and Valley and Ridge provinces of northwestern Virginia and eastern West Virginia, in the context of an integrated approach to teaching stratigraphy, structural analysis, and regional tectonics. Holistic, systems-based approaches to these topics incorporate both deductive (stratigraphic, structural, and tectonic theoretical models) and inductive (field observations and data collection) perspectives. Discussions of these pedagogic approaches are integral to this field trip. Day 1 of the field trip focuses on Mesoproterozoic granitoid basement (associated with the Grenville orogeny) and overlying Neoproterozoic to Early Cambrian cover rocks (Iapetan rifting) of the greater Blue Ridge province. These units collectively form a basement-cored anticlinorium that was thrust over Paleozoic strata of the Valley and Ridge province during Alleghanian contractional tectonics. Day 2 traverses a foreland thrust belt that consists of Cambrian to Ordovician carbonates (Iapetan divergent continental margin), Middle to Upper Ordovician immature clastics (associated with the Taconic orogeny), Silurian to Lower Devonian quartz arenites and carbonates (inter-orogenic tectonic calm), and Upper Devonian to Lower Mississippian clastic rocks (associated with the Acadian orogeny). Alleghanian structural features include the Little North Mountain thrust, Cacapon Mountain anticlinorium, Broad Top synclinorium, and Wills Mountain anticlinorium. Within the road log of this field guide we include both planned and optional stops, so that readers can explore the pedagogic concepts discussed herein in more detail, if desired.