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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
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Africa
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East Africa
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Tanzania
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Olduvai Gorge (1)
-
-
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North Africa
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Algeria (1)
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Illizi Basin (1)
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Tunisia (1)
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-
Sahel (1)
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Southern Africa
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Karoo Basin (3)
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South Africa
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Cape fold belt (2)
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KwaZulu-Natal South Africa (2)
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-
-
-
Arctic Ocean
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Beaufort Sea (1)
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Chukchi Sea (1)
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Arctic region (1)
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Asia
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Arabian Peninsula
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Oman (1)
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Saudi Arabia (1)
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Far East
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Borneo
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East Malaysia
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Sarawak Malaysia (1)
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China
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Hubei China (2)
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Inner Mongolia China
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Erlian Basin (1)
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Ordos Basin (1)
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Qaidam Basin (1)
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Qinling Mountains (1)
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Shaanxi China (1)
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Malaysia
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East Malaysia
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Sarawak Malaysia (1)
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-
-
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Himalayas (1)
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Indian Peninsula
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India
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Andhra Pradesh India (1)
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Uttarakhand India
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Dehradun India (1)
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Indus Basin (1)
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Pakistan
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Sind Pakistan (1)
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-
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Irkutsk Basin (1)
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Irkutsk Russian Federation (1)
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Khabarovsk Russian Federation (1)
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Krasnoyarsk Russian Federation (1)
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Middle East
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Iran (1)
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Turkey
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Eskisehir Turkey (1)
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Zagros (1)
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Novosibirsk Russian Federation (1)
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Russian Far East (1)
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Siberia (1)
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Siberian Platform
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Yenisei Ridge (1)
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Siwalik Range (1)
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Tomsk Russian Federation (2)
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Tyumen Russian Federation
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Khanty-Mansi Russian Federation
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Salym Field (1)
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Surgut Russian Federation (1)
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West Siberia (2)
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Yakutia Russian Federation (1)
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Atlantic Ocean
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North Atlantic
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Gulf of Mexico (4)
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Canada
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Eastern Canada
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Quebec
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Gaspe Peninsula (1)
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Elk Point Basin (1)
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Western Canada
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Alberta
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Medicine Hat Alberta (1)
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Saskatchewan (1)
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Central America
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El Salvador (1)
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Chicxulub Crater (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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Irkutsk Basin (1)
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Irkutsk Russian Federation (1)
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Khabarovsk Russian Federation (1)
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Krasnoyarsk Russian Federation (1)
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Novosibirsk Russian Federation (1)
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Russian Far East (1)
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Siberian Platform
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Yenisei Ridge (1)
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Tomsk Russian Federation (2)
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Tyumen Russian Federation
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Khanty-Mansi Russian Federation
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Salym Field (1)
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Surgut Russian Federation (1)
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Yakutia Russian Federation (1)
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Urals
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Southern Urals (1)
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West Siberia (2)
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Europe
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Bashkortostan Russian Federation (1)
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Central Europe
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Switzerland
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Jura Switzerland (1)
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Southern Europe
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Italy
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Apennines
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Southern Apennines (1)
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Basilicata Italy (1)
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Calabria Italy (1)
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Western Europe
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Belgium (1)
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France
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Meuse France (2)
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Var France (1)
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Ireland
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Dublin Ireland (1)
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United Kingdom
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Great Britain
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England
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Dorset England (1)
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Wiltshire England (1)
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International Ocean Discovery Program (1)
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Makran (1)
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Malay Archipelago
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Borneo
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East Malaysia
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Sarawak Malaysia (1)
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-
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Mediterranean region
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Calabrian Arc (1)
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Midlands (1)
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North America
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Appalachians
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Northern Appalachians (1)
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Glacier National Park (1)
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Gulf Coastal Plain (4)
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Rocky Mountains (1)
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Williston Basin (3)
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Pacific Ocean
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East Pacific
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Northeast Pacific
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Gulf of Alaska (1)
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North Pacific
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Bering Sea (1)
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Northeast Pacific
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Gulf of Alaska (1)
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Northwest Pacific
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South China Sea (1)
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-
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West Pacific
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Northwest Pacific
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South China Sea (1)
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United States
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Alaska
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Brooks Range (1)
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Anadarko Basin (1)
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California
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Rattlesnake Creek Terrane (1)
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Georgia (1)
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Illinois (1)
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Indiana (1)
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Klamath Mountains (1)
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Louisiana
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Allen Parish Louisiana (1)
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Maine
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Kennebec County Maine (1)
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Midcontinent (1)
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Montana
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Flathead County Montana (1)
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Glacier County Montana (1)
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North Dakota (2)
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Oklahoma (1)
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West Virginia (1)
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commodities
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energy sources (1)
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feldspar deposits (1)
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geothermal energy (1)
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industrial minerals (1)
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kaolin deposits (2)
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gold ores (1)
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polymetallic ores (1)
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mineral deposits, genesis (3)
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oil and gas fields (4)
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natural gas
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shale gas (2)
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zeolite deposits (1)
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elements, isotopes
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carbon
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C-13/C-12 (1)
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chemical elements (1)
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halogens
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iodine
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I-131 (1)
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hydrogen (1)
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isotope ratios (3)
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isotopes
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radioactive isotopes
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Cs-137 (1)
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I-131 (1)
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Na-22 (1)
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stable isotopes
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C-13/C-12 (1)
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Nd-144/Nd-143 (1)
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O-18/O-16 (1)
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Sr-87/Sr-86 (2)
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metals
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actinides
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thorium (1)
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uranium (1)
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alkali metals
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cesium
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Cs-137 (1)
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potassium (1)
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sodium
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Na-22 (1)
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-
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alkaline earth metals
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barium (2)
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strontium
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Sr-87/Sr-86 (2)
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hafnium (1)
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molybdenum (1)
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niobium (1)
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rare earths
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europium (1)
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neodymium
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Nd-144/Nd-143 (1)
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-
-
zirconium (1)
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-
oxygen
-
O-18/O-16 (1)
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-
-
fossils
-
Chordata
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Vertebrata
-
Tetrapoda (1)
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-
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ichnofossils (1)
-
Invertebrata
-
Arthropoda
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Trilobitomorpha
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Trilobita (1)
-
-
-
Brachiopoda (1)
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Cnidaria
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Scyphozoa
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Conulariida (1)
-
-
-
Echinodermata
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Crinozoa
-
Crinoidea (1)
-
-
-
Mollusca
-
Tentaculitida (1)
-
-
Protista
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Foraminifera
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Rotaliina
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Orbitoidacea
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Lepidocyclina (1)
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-
-
-
Radiolaria (1)
-
-
-
microfossils (6)
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palynomorphs (1)
-
Plantae
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algae
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Coccolithophoraceae (1)
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-
Pteridophyta (1)
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Spermatophyta
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Gymnospermae
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Coniferales (1)
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Glossopteridales (1)
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-
-
-
-
geochronology methods
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K/Ar (1)
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-
geologic age
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Cenozoic
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Quaternary (2)
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Tertiary
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middle Tertiary (1)
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Neogene
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Miocene
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middle Miocene
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Langhian (2)
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upper Miocene
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Messinian (2)
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Tortonian (1)
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-
-
Pliocene (1)
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-
Paleogene
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Eocene
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lower Eocene (1)
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-
Oligocene
-
lower Oligocene
-
Rupelian (1)
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-
-
Paleocene (2)
-
Wilcox Group (1)
-
-
-
-
Mesozoic
-
Cretaceous
-
Lower Cretaceous
-
Albian (1)
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Mannville Group (1)
-
-
Upper Cretaceous (1)
-
-
Jurassic
-
Bazhenov Formation (1)
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Lower Jurassic (1)
-
Middle Jurassic
-
Callovian (3)
-
-
Opalinus Clay (3)
-
Upper Jurassic
-
Galice Formation (1)
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Kimmeridge Clay (1)
-
Oxfordian (3)
-
-
-
Triassic
-
Upper Triassic (1)
-
-
-
Paleozoic
-
Cambrian (1)
-
Carboniferous
-
Mississippian
-
Lower Mississippian
-
Fort Payne Formation (1)
-
-
Upper Mississippian
-
Meramecian (1)
-
-
-
Pennsylvanian
-
Upper Pennsylvanian
-
Missourian
-
Plattsburg Limestone (1)
-
Stanton Formation (1)
-
Wyandotte Limestone (1)
-
-
-
-
-
Devonian
-
Middle Devonian
-
Cedar Valley Formation (1)
-
Eifelian (1)
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Prairie Evaporite (1)
-
Winnipegosis Formation (2)
-
-
Upper Devonian (1)
-
-
New Albany Shale (1)
-
Ordovician
-
Lower Ordovician
-
Tremadocian (1)
-
-
Martinsburg Formation (1)
-
Upper Ordovician (2)
-
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Permian
-
Ecca Group (1)
-
Gharif Formation (1)
-
Lower Permian
-
Al Khlata Formation (1)
-
-
Upper Permian (1)
-
-
Silurian
-
Lower Silurian
-
Llandovery
-
Interlake Formation (1)
-
-
-
Middle Silurian
-
Keefer Sandstone (1)
-
McKenzie Formation (1)
-
Waldron Shale (1)
-
-
Waterville Formation (1)
-
-
upper Paleozoic
-
Dwyka Formation (2)
-
Kaskaskia Sequence (2)
-
-
-
Precambrian
-
upper Precambrian
-
Proterozoic
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Mesoproterozoic
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Belt Supergroup (1)
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Helena Formation (1)
-
-
Neoproterozoic
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Riphean (1)
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-
-
-
-
-
igneous rocks
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igneous rocks
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plutonic rocks
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granites (2)
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volcanic rocks
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glasses (1)
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pyroclastics
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hyaloclastite (1)
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tuff (1)
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rhyolites (1)
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metamorphic rocks
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metamorphic rocks
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gneisses (2)
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hornfels (1)
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marbles (1)
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metasedimentary rocks
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metapelite (1)
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metasomatic rocks
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skarn (1)
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schists (1)
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slates (4)
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turbidite (1)
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minerals
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carbonates
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aragonite (1)
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calcite (1)
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dolomite (4)
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minerals (1)
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phosphates (1)
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silicates
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framework silicates
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silica minerals
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quartz (1)
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zeolite group
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analcime (1)
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sheet silicates
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chlorite group
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chlorite (1)
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clay minerals
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kaolinite (7)
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montmorillonite (1)
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smectite (4)
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illite (7)
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mica group
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muscovite (2)
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sulfates
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alunite (1)
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anhydrite (2)
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natroalunite (1)
-
-
sulfides
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pyrite (1)
-
-
-
Primary terms
-
Africa
-
East Africa
-
Tanzania
-
Olduvai Gorge (1)
-
-
-
North Africa
-
Algeria (1)
-
Illizi Basin (1)
-
Tunisia (1)
-
-
Sahel (1)
-
Southern Africa
-
Karoo Basin (3)
-
South Africa
-
Cape fold belt (2)
-
KwaZulu-Natal South Africa (2)
-
-
-
-
Arctic Ocean
-
Beaufort Sea (1)
-
Chukchi Sea (1)
-
-
Arctic region (1)
-
Asia
-
Arabian Peninsula
-
Oman (1)
-
Saudi Arabia (1)
-
-
Far East
-
Borneo
-
East Malaysia
-
Sarawak Malaysia (1)
-
-
-
China
-
Hubei China (2)
-
Inner Mongolia China
-
Erlian Basin (1)
-
-
Ordos Basin (1)
-
Qaidam Basin (1)
-
Qinling Mountains (1)
-
Shaanxi China (1)
-
-
Malaysia
-
East Malaysia
-
Sarawak Malaysia (1)
-
-
-
-
Himalayas (1)
-
Indian Peninsula
-
India
-
Andhra Pradesh India (1)
-
Uttarakhand India
-
Dehradun India (1)
-
-
-
Indus Basin (1)
-
Pakistan
-
Sind Pakistan (1)
-
-
-
Irkutsk Basin (1)
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Irkutsk Russian Federation (1)
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Khabarovsk Russian Federation (1)
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Krasnoyarsk Russian Federation (1)
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Middle East
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Iran (1)
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Turkey
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Eskisehir Turkey (1)
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Zagros (1)
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Novosibirsk Russian Federation (1)
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Russian Far East (1)
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Siberia (1)
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Siberian Platform
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Yenisei Ridge (1)
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Siwalik Range (1)
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Tomsk Russian Federation (2)
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Tyumen Russian Federation
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Khanty-Mansi Russian Federation
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Salym Field (1)
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Surgut Russian Federation (1)
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-
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West Siberia (2)
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Yakutia Russian Federation (1)
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Atlantic Ocean
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North Atlantic
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Gulf of Mexico (4)
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-
-
bitumens (1)
-
Canada
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Eastern Canada
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Quebec
-
Gaspe Peninsula (1)
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-
-
Elk Point Basin (1)
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Western Canada
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Alberta
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Medicine Hat Alberta (1)
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Saskatchewan (1)
-
-
-
carbon
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C-13/C-12 (1)
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-
Cenozoic
-
Quaternary (2)
-
Tertiary
-
middle Tertiary (1)
-
Neogene
-
Miocene
-
middle Miocene
-
Langhian (2)
-
-
upper Miocene
-
Messinian (2)
-
Tortonian (1)
-
-
-
Pliocene (1)
-
-
Paleogene
-
Eocene
-
lower Eocene (1)
-
-
Oligocene
-
lower Oligocene
-
Rupelian (1)
-
-
-
Paleocene (2)
-
Wilcox Group (1)
-
-
-
-
Central America
-
El Salvador (1)
-
-
chemical analysis (1)
-
Chordata
-
Vertebrata
-
Tetrapoda (1)
-
-
-
clay mineralogy (8)
-
climate change (1)
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construction materials (1)
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continental shelf (2)
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crust (1)
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crystal chemistry (1)
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crystal structure (1)
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crystallography (1)
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dams (1)
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data processing (1)
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deformation (4)
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diagenesis (15)
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economic geology (3)
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energy sources (1)
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engineering geology (1)
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Europe
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Bashkortostan Russian Federation (1)
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Central Europe
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Switzerland
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Jura Switzerland (1)
-
-
-
Southern Europe
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Italy
-
Apennines
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Southern Apennines (1)
-
-
Basilicata Italy (1)
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Calabria Italy (1)
-
-
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Western Europe
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Belgium (1)
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France
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Var France (1)
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Ireland
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Dublin Ireland (1)
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United Kingdom
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Great Britain
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England
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folds (1)
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foliation (2)
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fractures (2)
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geochemistry (14)
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geomorphology (1)
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geophysical methods (4)
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government agencies
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ground water (1)
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hydrogen (1)
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hydrology (1)
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ichnofossils (1)
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igneous rocks
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plutonic rocks
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granites (2)
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volcanic rocks
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glasses (1)
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pyroclastics
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hyaloclastite (1)
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tuff (1)
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rhyolites (1)
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inclusions
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fluid inclusions (1)
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industrial minerals (1)
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intrusions (1)
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Invertebrata
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Arthropoda
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Trilobitomorpha
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Trilobita (1)
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Brachiopoda (1)
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Cnidaria
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Scyphozoa
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Conulariida (1)
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Echinodermata
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Crinozoa
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Crinoidea (1)
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-
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Mollusca
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Tentaculitida (1)
-
-
Protista
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Foraminifera
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Rotaliina
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Orbitoidacea
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Lepidocyclina (1)
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-
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Radiolaria (1)
-
-
-
isotopes
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radioactive isotopes
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Cs-137 (1)
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I-131 (1)
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Na-22 (1)
-
-
stable isotopes
-
C-13/C-12 (1)
-
Nd-144/Nd-143 (1)
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O-18/O-16 (1)
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Sr-87/Sr-86 (2)
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-
-
kaolin deposits (2)
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lexicons (1)
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Malay Archipelago
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Borneo
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East Malaysia
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Sarawak Malaysia (1)
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-
-
-
marine installations (1)
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Mediterranean region
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Calabrian Arc (1)
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-
Mesozoic
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Cretaceous
-
Lower Cretaceous
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Albian (1)
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Mannville Group (1)
-
-
Upper Cretaceous (1)
-
-
Jurassic
-
Bazhenov Formation (1)
-
Lower Jurassic (1)
-
Middle Jurassic
-
Callovian (3)
-
-
Opalinus Clay (3)
-
Upper Jurassic
-
Galice Formation (1)
-
Kimmeridge Clay (1)
-
Oxfordian (3)
-
-
-
Triassic
-
Upper Triassic (1)
-
-
-
metal ores
-
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GeoRef Categories
Era and Period
Epoch and Age
Book Series
Date
Availability
argillaceous texture
Sequence and cyclostratigraphic analysis of Paleocene carbonate sediments in the Chicxulub impact crater: Implications for sea level change and climate dynamics Available to Purchase
Monitoring CO 2 , CO and CH 4 , affected or not by ventilation and anthropogenic activities, in the galleries of the Underground Research Laboratory (URL) of Meuse/Haute-Marne Available to Purchase
High Resolution Strontium Isotope Stratigraphy of L-III Reservoir of Mumbai High and adjoining Cluster 7 areas of Mumbai Offshore Basin, India Available to Purchase
Swelling evolution mechanism for argillaceous slate in a hydrochemical environment Available to Purchase
Diffusion of 22 Na, 137 Cs, 133 Ba, 152+154 Eu and 131 I in Argillaceous Clays of Cuddapah Supergroup, Andhra Pradesh, India Available to Purchase
Size effect of anisotropy in spatial variability of rocks: evaluation through digital drilling Available to Purchase
Swelling damage evolution of argillaceous slate in a water-rich environment Available to Purchase
Stability Assessment of Siwalik Rock Slopes – A Case Study from Dehradun Area, Uttarakhand, India Available to Purchase
Lithological controls on the expansion of unbound aggregates in Dublin, eastern Ireland: two contrasting cases Available to Purchase
Seismic-based characterization of reservoir heterogeneity within the Meramec interval of the STACK play, Central Oklahoma Available to Purchase
Lithostratigraphy and sedimentology of the Middle Devonian Tra-Tra Formation, including the Grootrivier Member (Bokkeveld Group, Cape Supergroup), South Africa Available to Purchase
Shale gas potential of the Prince Albert Formation: A preliminary study Available to Purchase
What matters for flow and recovery in carbonate gas reservoirs: Insights from the mature Central Luconia Province, offshore Sarawak, Malaysia Available to Purchase
Site screening of clay formations in NW China as host rocks for a high-level radioactive waste disposal repository Available to Purchase
Abstract Deep geological disposal of high-level radioactive waste (HLW) in a repository with a system of engineered and natural barriers has been recognized as an appropriate disposal concept by Chinese authorities since 2003, and both crystalline rocks and argillaceous rocks are considered as the candidate host rocks for HLW disposal repository. The 1:200 000 regional survey indicated that there are potential clay formations in Mesozoic–Cenozoic sedimentary basins in NW China. Five candidate areas have been suggested with potential clay formations including the Tamusu and Suhongtu areas with upper K 1 Bayingebi clay formations in the east Bayingebi Basin, in the Inner Mongolia Autonomous Region. On the basis of a detailed ground geological, hydrological and geophysical surveys, two test boreholes drilled to a depth of 800 m in the Tamusu area revealed that there are three lacustrine-facies clay formations (K 1 b 2-3 , K 1 b 2-2 and K 1 b 2-1 ). The thickness of the K 1 b 2-3 and K 1 b 2-2 clay formations is about 300–600 m with sandstone and siltstone interbeds, while the thickness of the K 1 b 2-1 homogeneous clay formation is more than 200 m with the depth of 450 m below the surface. The spatial extension of the clay formations could meet the fundamental criteria to ensure the long-term safety of the repository. Initial mineralogical studies on core samples indicated that the mineral assemblage is dominated by analcite, kaolinite, illite and dolomite. The homogeneous argillaceous rocks rich in analcite in Tamusu area could be a new type of host rock for a HLW disposal repository.
Estimation of original kerogen type and hydrogen index using inorganic geochemical proxies: Implications for assessing shale gas potential in the Devonian Horn River Formation of western Canada Available to Purchase
PORE GEOMETRY AS A LIMITING FACTOR FOR ANION DIFFUSION IN ARGILLACEOUS ROCKS Available to Purchase
Hydrothermal alteration products in the vicinity of the Ahırözü kaolin deposits, Mihalıççık-Eskişehir,Turkey Available to Purchase
Deciphering multiple controls on reservoir quality and inhibition of quartz cement in a complex reservoir: Ordovician glacial sandstones, Illizi Basin, Algeria Available to Purchase
Abstract: Late Ordovician ( c. 445 Ma) glacial sandstones form important gas reservoirs in the Illizi Basin, SW Algeria. These reservoirs have a high degree of depositional and diagenetic complexity, such that understanding and predicting reservoir quality (RQ) presents a major challenge to their economic development. Porosity is typically 1–10%, but reaches up to 15% and permeability is typically <10 −15 m 2 (<1 mD), but locally reaches >10 −13 m 2 (>100 mD). The key questions addressed herein concern the development and distribution of this RQ variability, specifically why has good RQ been locally preserved? Primary depositional fabric exerts a strong control on RQ. Muddy sandstones are either highly compacted or pervasively cemented by quartz and microporous illite, and have very poor RQ. Only fine- to medium-grained, moderately well sorted, clean sandstones can contain good RQ, but texturally and mineralogically similar sandstones span a wide range of porosity and permeability. This range is primarily driven by the degree of quartz cementation, with incomplete cementation resulting in the best RQ. Quartz overgrowths in incompletely cemented clean sandstones are patchy and non-luminescent in scanning electron microscopy with cathodoluminescence (SEM-CL), possibly indicating slow growth rates. There is tentative evidence to link incomplete quartz cementation with oil charging of the reservoir. An alternative or additional explanation of RQ preservation may be related to limited silica supply in the centres of the thickest, stacked, clean sandstones, where the better RQ tends to reside. The results of this study imply that sustained high-energy depositional processes, coupled with an early oil charge, are prerequisites for retaining the best RQ. This has important implications for the exploration and development of Late Ordovician glacial sandstones in the Illizi Basin, and potentially similar plays elsewhere.