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NARROW
GeoRef Subject
-
all geography including DSDP/ODP Sites and Legs
-
Africa
-
East Africa
-
Djibouti (1)
-
-
North Africa
-
Algeria (1)
-
-
Southern Africa
-
South Africa
-
Mpumalanga South Africa (1)
-
North-West Province South Africa (1)
-
Vaal River (1)
-
-
-
West Africa
-
Ivory Coast (1)
-
-
-
Antarctica
-
Amundsen Sea (1)
-
Antarctic ice sheet
-
East Antarctic ice sheet (5)
-
West Antarctic ice sheet (4)
-
-
Coats Land (1)
-
East Antarctica (5)
-
Ellsworth Land (1)
-
Pine Island Glacier (2)
-
Ross Ice Shelf
-
McMurdo Ice Shelf (1)
-
-
Victoria Land (1)
-
West Antarctica (5)
-
-
Arctic Ocean
-
Barents Sea (1)
-
Beaufort Sea (1)
-
-
Arctic region (1)
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Asal Rift (1)
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Asia
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Altai Mountains
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Mongolian Altai (1)
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Arabian Peninsula
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Kuwait (1)
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Oman (2)
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Rub' al Khali (1)
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Saudi Arabia (1)
-
Yemen (1)
-
-
Central Asia
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Kazakhstan
-
Tengiz Field (1)
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-
Far East
-
China
-
Jilin China (1)
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Kunlun Fault (1)
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Kunlun Mountains (1)
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Ordos Basin (1)
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Songliao Basin (1)
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Xinjiang China (1)
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Xizang China (1)
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Indonesia
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Sumatra (1)
-
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Japan
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Honshu (1)
-
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Korea
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South Korea
-
Pohang South Korea (1)
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-
-
Mongolia
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Mongolian Altai (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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Nepal
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Kathmandu Nepal (1)
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Pakistan (1)
-
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Kopet-Dag Range (1)
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Main Central Thrust (1)
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Middle East
-
Iran
-
Fars Iran (1)
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Turkey
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Kocaeli Turkey
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Izmit Turkey (1)
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Zagros (2)
-
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Tajikistan (1)
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Turkmenia (1)
-
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Atlantic Ocean
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Mid-Atlantic Ridge (1)
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North Atlantic
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Caribbean Sea (1)
-
Gulf of Mexico (3)
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Hudson Bay (2)
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Jeanne d'Arc Basin (1)
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Labrador Sea (2)
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North Sea (1)
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Northeast Atlantic (1)
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South Atlantic
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Santos Basin (1)
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Australasia
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Papua New Guinea (1)
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Canada
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Arctic Archipelago (2)
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Cold Lake (1)
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Eastern Canada
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Baffin Island
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Barnes ice cap (1)
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Newfoundland and Labrador
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Labrador (2)
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Newfoundland (1)
-
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Ontario
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Kenora District Ontario
-
Keewatin Ontario (1)
-
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Prescott County Ontario (1)
-
Russell County Ontario (1)
-
Sudbury igneous complex (2)
-
Sudbury Structure (2)
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Thunder Bay District Ontario
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Lake Nipigon (1)
-
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Quebec
-
Gaspe Peninsula (1)
-
Manicouagan River (1)
-
-
-
Hudson Bay (2)
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Mackenzie Mountains (1)
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Nunavut
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Baffin Island
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-
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Queen Elizabeth Islands (1)
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Western Canada
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Alberta
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Athabasca Oil Sands (1)
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British Columbia (8)
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Canadian Rocky Mountains (2)
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Northwest Territories (1)
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Yukon Territory
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Klondike (1)
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Caribbean region
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West Indies
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Antilles
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Puerto Rico (1)
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Cascadia subduction zone (1)
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Caspian Basin (1)
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Central America
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Guatemala
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Pacaya (1)
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Honduras (1)
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Commonwealth of Independent States
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Kazakhstan
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Europe
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Alps
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Central Europe
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Germany
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Eifel (1)
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North Rhine-Westphalia Germany
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Ruhr (1)
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Rhineland-Palatinate Germany (1)
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Upper Rhine Graben (1)
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Rhenish Schiefergebirge
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Eifel (1)
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Southern Europe
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Greece
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Ionian Islands
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Iberian Peninsula
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Ossa-Morena Zone (1)
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Italy
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L'Aquila Italy (1)
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Apennines (1)
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France
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Fairweather Fault (1)
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Indian Ocean Islands
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Prince Edward Island Group
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Mackenzie River (1)
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Mackenzie River valley (1)
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Mediterranean Sea
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Mexico
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North America
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Appalachians
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Canadian Shield
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Grenville Province
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Central Metasedimentary Belt (1)
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Cerro Prieto Fault (1)
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Denali Fault (3)
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North American Cordillera
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Okanagan Valley (1)
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Rocky Mountains
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Canadian Rocky Mountains (2)
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Saint Elias Mountains (1)
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Tintina Fault (1)
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Yakutat Terrane (1)
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Yukon River (1)
-
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Pacific Ocean
-
East Pacific
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Northeast Pacific
-
Gulf of California
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Guaymas Basin (1)
-
-
-
-
North Pacific
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Northeast Pacific
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Gulf of California
-
Guaymas Basin (1)
-
-
-
-
West Pacific
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Banda Arc (1)
-
-
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polar regions (1)
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Red Lake (1)
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San Andreas Fault (2)
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San Jacinto Fault (1)
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Santa Clara Valley (1)
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South America
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Amazon Basin (1)
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Andes
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Central Andes (1)
-
-
Argentina (1)
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Bolivia (1)
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Brazil
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Rondonia Brazil (1)
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Chile (1)
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Ecuador (1)
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Venezuela
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Orinoco Delta (1)
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-
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Southern Ocean
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Ross Sea
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McMurdo Sound (1)
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United States
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Alaska
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Arizona
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Monterey County California
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Lewis County New York (1)
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Utah
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commodities
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placers (1)
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elements, isotopes
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carbon
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halogens
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chlorine
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chloride ion (1)
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hydrogen
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D/H (1)
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isotope ratios (3)
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isotopes
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radioactive isotopes
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C-14 (1)
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stable isotopes
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C-13/C-12 (1)
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D/H (1)
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O-18/O-16 (3)
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metals
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alkaline earth metals
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beryllium
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Be-10 (1)
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platinum group
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platinum ores (1)
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noble gases
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helium (1)
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oxygen
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O-18/O-16 (3)
-
-
-
fossils
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Chordata
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Vertebrata
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Tetrapoda
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Mammalia
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Theria
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Eutheria
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Primates
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Hominidae
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Homo
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Homo sapiens (1)
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geochronology methods
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(U-Th)/He (1)
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Ar/Ar (3)
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fission-track dating (1)
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infrared stimulated luminescence (1)
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optically stimulated luminescence (1)
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paleomagnetism (2)
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thermochronology (1)
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geologic age
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Cenozoic
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Quaternary
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Lake Agassiz (1)
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upper Pleistocene
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upper Weichselian (1)
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Wisconsinan
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upper Wisconsinan (1)
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Tertiary
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Neogene
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Pliocene (1)
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Paleogene (2)
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Laurentide ice sheet (3)
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Mesozoic
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Cretaceous
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Clearwater Formation (2)
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McMurray Formation (1)
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Upper Cretaceous (1)
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Jurassic (2)
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Triassic
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Upper Triassic
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Chinle Formation (1)
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Paleozoic
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Devonian
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Upper Devonian
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Wabamun Group (1)
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Exshaw Formation (1)
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Ordovician (4)
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Silurian (1)
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Precambrian
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upper Precambrian
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Proterozoic
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Mesoproterozoic (1)
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Paleoproterozoic (1)
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igneous rocks
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igneous rocks
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plutonic rocks
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granites
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monzogranite (1)
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volcanic rocks
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basalts (1)
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pyroclastics
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metamorphic rocks
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metamorphic rocks
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metasedimentary rocks (1)
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minerals
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oxides
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phosphates
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apatite (1)
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silicates
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chain silicates
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clinoamphibole
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hornblende (2)
-
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framework silicates
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feldspar group
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alkali feldspar
-
K-feldspar (1)
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silica minerals
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quartz (2)
-
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-
sheet silicates
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mica group
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biotite (1)
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muscovite (1)
-
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-
-
sulfides
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molybdenite (1)
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Primary terms
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absolute age (4)
-
Africa
-
East Africa
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Djibouti (1)
-
-
North Africa
-
Algeria (1)
-
-
Southern Africa
-
South Africa
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Mpumalanga South Africa (1)
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North-West Province South Africa (1)
-
Vaal River (1)
-
-
-
West Africa
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Ivory Coast (1)
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-
-
Antarctica
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Amundsen Sea (1)
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Antarctic ice sheet
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East Antarctic ice sheet (5)
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West Antarctic ice sheet (4)
-
-
Coats Land (1)
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East Antarctica (5)
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Ellsworth Land (1)
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Pine Island Glacier (2)
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Ross Ice Shelf
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McMurdo Ice Shelf (1)
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Victoria Land (1)
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West Antarctica (5)
-
-
Arctic Ocean
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Beaufort Sea (1)
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Arctic region (1)
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Asia
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Altai Mountains
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Mongolian Altai (1)
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Arabian Peninsula
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Kuwait (1)
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Oman (2)
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Rub' al Khali (1)
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Saudi Arabia (1)
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Yemen (1)
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-
Central Asia
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Kazakhstan
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Tengiz Field (1)
-
-
-
Far East
-
China
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Jilin China (1)
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Kunlun Fault (1)
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Kunlun Mountains (1)
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Ordos Basin (1)
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Songliao Basin (1)
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Xinjiang China (1)
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Xizang China (1)
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Indonesia
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Sumatra (1)
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Japan
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Honshu (1)
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Korea
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Pohang South Korea (1)
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-
-
Mongolia
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Mongolian Altai (1)
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Philippine Islands (1)
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Gobi Desert (1)
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Indian Peninsula
-
Nepal
-
Kathmandu Nepal (1)
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Pakistan (1)
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Kopet-Dag Range (1)
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Main Central Thrust (1)
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Middle East
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Iran
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Fars Iran (1)
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Turkey
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Kocaeli Turkey
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Izmit Turkey (1)
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-
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Zagros (2)
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Tajikistan (1)
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Turkmenia (1)
-
-
Atlantic Ocean
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Mid-Atlantic Ridge (1)
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North Atlantic
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Caribbean Sea (1)
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Gulf of Mexico (3)
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Hudson Bay (2)
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Jeanne d'Arc Basin (1)
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Labrador Sea (2)
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North Sea (1)
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Northeast Atlantic (1)
-
-
South Atlantic
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Santos Basin (1)
-
-
-
Australasia
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Papua New Guinea (1)
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bitumens (2)
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Canada
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Arctic Archipelago (2)
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Cold Lake (1)
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Eastern Canada
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Baffin Island
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Barnes ice cap (1)
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Newfoundland and Labrador
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Labrador (2)
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Newfoundland (1)
-
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Ontario
-
Kenora District Ontario
-
Keewatin Ontario (1)
-
-
Prescott County Ontario (1)
-
Russell County Ontario (1)
-
Sudbury igneous complex (2)
-
Sudbury Structure (2)
-
Thunder Bay District Ontario
-
Lake Nipigon (1)
-
-
-
Quebec
-
Gaspe Peninsula (1)
-
Manicouagan River (1)
-
-
-
Hudson Bay (2)
-
Mackenzie Mountains (1)
-
Nunavut
-
Baffin Island
-
Barnes ice cap (1)
-
-
-
Queen Elizabeth Islands (1)
-
Western Canada
-
Alberta
-
Athabasca Oil Sands (1)
-
Peace River Arch (1)
-
-
British Columbia (8)
-
Canadian Cordillera (1)
-
Canadian Rocky Mountains (2)
-
Northwest Territories (1)
-
Yukon Territory
-
Klondike (1)
-
-
-
-
carbon
-
C-13/C-12 (1)
-
C-14 (1)
-
-
Caribbean region
-
West Indies
-
Antilles
-
Greater Antilles
-
Puerto Rico (1)
-
-
-
-
-
Cenozoic
-
Quaternary
-
Cordilleran ice sheet (1)
-
Holocene
-
Middle Ages (1)
-
upper Holocene (2)
-
-
Pleistocene
-
Lake Agassiz (1)
-
lower Pleistocene (1)
-
upper Pleistocene
-
Weichselian
-
upper Weichselian (1)
-
-
Wisconsinan
-
upper Wisconsinan (1)
-
-
-
-
-
Tertiary
-
Neogene
-
Pliocene (1)
-
-
Paleogene (2)
-
-
-
Central America
-
Guatemala
-
Pacaya (1)
-
-
Honduras (1)
-
-
Chordata
-
Vertebrata
-
Tetrapoda
-
Mammalia
-
Theria
-
Eutheria
-
Primates
-
Hominidae
-
Homo
-
Homo sapiens (1)
-
-
-
-
-
-
-
-
-
-
climate change (8)
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conservation (1)
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construction materials (1)
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continental drift (1)
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continental shelf (1)
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crust (7)
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dams (1)
-
data processing (18)
-
Deep Sea Drilling Project
-
IPOD
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Leg 94
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DSDP Site 609 (1)
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-
-
deformation (24)
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diagenesis (2)
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diamond deposits (1)
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earthquakes (43)
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ecology (1)
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economic geology (1)
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energy sources (1)
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environmental geology (1)
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Europe
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Alps
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French Alps (1)
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Central Europe
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Germany
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Bavaria Germany
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Ries Crater (1)
-
-
Eifel (1)
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North Rhine-Westphalia Germany
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Ruhr (1)
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-
Rhineland-Palatinate Germany (1)
-
-
Upper Rhine Graben (1)
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-
Rhenish Schiefergebirge
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Eifel (1)
-
-
Southern Europe
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Greece
-
Ionian Islands
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Cephalonia (1)
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-
-
Iberian Peninsula
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Ossa-Morena Zone (1)
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Italy
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Apennines (1)
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Emilia-Romagna Italy (2)
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Po Valley (1)
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Sicily Italy
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Radarsat
ABSTRACT The presence of natural seepage slicks and seeps composed of a mixture of cracked and uncracked lacustrine saline oils suggests the existence of active Barremian hydrocarbon source rock systems in the frontier deep and ultra-deep waters of the Santos Basin, Brazil. Acquisition, interpretation, and integration with meteoceanographic data of 24 Radarsat and 50 Sentinel images resulted in the identification of 78 oil slicks spread over the 700 km 2 study area from water depths that range from 400 to 3000 m. The identified seepage slicks resulted from the convergence of optimum tectonic, temporal persistence, and environmental scenarios, confirming that some pre-salt oils are effectively leaking from deep petroleum systems to the sea surface. When integrated with piston core, seismic, geochemical, and 3-D modeling data, it is clear that the seepage slicks are directly related to the salt tectonic processes and the presence of transtensional and listric fault zones, suggesting an origin closely associated with salt windows on the unconformity that defines the top of the sag sequence and seepage features on the seafloor. The geological framework of the Santos Basin’s ultra-deep waters is different from the proximal areas of the basin. In this sense, four geological domains are interpreted: The first domain occurs in shallow water in the platform region and can be called the seal risk zone; the second corresponds to the platform to salt-ramp region that occurs from shallow to continental slope waters and is a gas/condensate-prone zone; the third includes the salt-ramp to mini-basin domains, comprising the Upper Cretaceous reservoir turbidity fairway associated with the axis of the central rift system located from the deep to ultra-deep-water region; and the fourth is composed of mini basins and stratified layers of the evaporitic sequence in the ultra-deep waters where giant oil accumulations are present in the carbonate pre-salt reservoirs. These four structural domains determine different petroleum habitats that depend on salt thickness and the structural configuration of the rift sequence. The main hydrocarbon migration model for the identified seeps and oil slicks associated with the salt-weld or salt-wall domain of the Santos Basin’s ultra-deep waters is related to the existence of major fault zones. This type of feature is known as a transtensional fault zone that developed from the basement to the pre-salt reservoirs, with them sometimes functioning as the trigger for the halokinesis-derived listric normal faults that can displace the entire sedimentary wedge and can be observed on the seafloor. The presence of surface slicks is associated with oil seeps detected through piston cores in areas related to these types of faults, which confirms that such systems are the main oil conduits to charge and recharge pre-salt and post-salt oil and gas accumulations. Therefore, this hydrocarbon migration model should be well understood and considered for the exploration for oil and gas, principally post-salt targets. In summary, the integration of seepage slicks, seismic data, and geochemical analyses of reservoir oils and oil seeps can improve the petroleum system comprehension of frontier areas and, in the case of this chapter, open up a huge exploration frontier for the deep and ultra-deep-water outboard area of the Santos Basin.
InSAR monitoring using RADARSAT-2 data at Piton de la Fournaise (La Reunion) and Karthala (Grande Comore) volcanoes
Abstract Piton de la Fournaise (La Reunion) and Karthala (Grande Comore) are the two active volcanoes of the Southwestern Indian Ocean. A 14 month (April 2013 to June 2014) monitoring period was carried out at both volcanoes using synthetic aperture RADAR interferometry (InSAR) techniques on RADARSAT-2 data. Thanks to the SEAS-OI (Survey of Environment Assisted by Satellite in the Indian Ocean) station, 21 SAR scenes were acquired over this period and InSAR results revealed the slow subsidence of the Dolomieu caldera floor at Piton de la Fournaise, following the 2009 and 2010 eruptions, and the subsidence of the whole cone between April and July 2013. At Karthala no evidence of any volcanic activity was found for the period April 2013 to June 2014. The use of systematic InSAR for volcano monitoring is an efficient tool to study effusive eruptions. We showed that, during periods of unrest, InSAR is able to pick up early signs of a future eruption and monitor secondary phenomena that require no real-time data. During an effusive crisis, it is still difficult to carry out fully operational InSAR monitoring, but using the example of the June 2014 eruption at Piton de la Fournaise, we show that SAR data can help with the detection and tracking of lava flows and active flow paths during effusive eruptions, based on SAR coherence and SAR amplitude. These preliminary results are very promising for the future of InSAR monitoring of active volcanoes and highlight the need for near-real-time access to SAR data in the mapping of active lava flows during effusive eruptions. This study also revealed the major role of ground stations like SEAS-OI in the efficiency of this monitoring, supplying free, near-real-time remote sensing data to the scientific and institutional communities.
Estimating Slip Distribution for the İzmit Mainshock from Coseismic GPS, ERS-1, RADARSAT, and SPOT Measurements
Abstract This paper illustrates the use of an integrated analysis of HRAM data and RADARSAT-1 images for detection and analysis of geologic structures in mature and frontier basins. The HRAM images provide detailed information on basement structures, weakly magnetic faults, and fracture systems in the sedimentary section, and other features that contain magnetic material anomalous to the surrounding rock units. The RADARSAT-1 images are used to constrain the analysis of the HRAM data, as well as to expand the interpretation into areas that are not covered by the HRAM surveys. A series of examples supported by surface and subsurface controls has been used here to illustrate our integrated approach to the analysis of these two reconnaissance exploration tools. In the shallow waters of the Gulf of Mexico, HRAM images are used to map the inventory of complex salt bodies and to establish their structural linkage with extensional, listric, normal fault systems. In the foothills region of northeastern British Columbia, the integration of HRAM images and RADARSAT data leads to the recognition of (1) exposed and buried folds and thrust faults, which form the key hydrocarbon traps of this region, and (2) major cross-trending fault zones that form a fractured-reservoir fairway. Finally, in a frontier exploration area (the onshore basins of Gabon), we have used newly available HRAM data, RADARSAT-1 images, and regional seismic data to investigate the hydrocarbon potential of deep-seated basement structures in the Dianongo Trough. The regional coverage of the HRAM data and RADARSAT images allows us to establish the structural style of different parts of the basin, identify new exploration concepts and leads and, most important, map key basement structures that lie below the salt layers of this basin. Previous attempts to explore for such subsalt plays were hindered by the poor quality of the seismic data for these exploration targets.