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GeoRef Subject
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all geography including DSDP/ODP Sites and Legs
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Africa
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Afar (1)
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Central Africa
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Congo Democratic Republic
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Kivu Congo Democratic Republic
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Nyiragongo (1)
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East Africa
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Afar Depression (1)
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Ethiopia
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Fantale (1)
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Kenya (3)
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Tanzania
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Kilimanjaro (1)
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Oldoinyo Lengai (1)
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East African Rift (2)
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Gregory Rift (1)
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Madagascar (2)
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Namib Desert (1)
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North Africa
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Egypt (2)
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Libya
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Garian Libya (1)
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Morocco
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Rif (2)
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Southern Africa
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Botswana (1)
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Kaapvaal Craton (2)
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Karoo Basin (2)
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Lesotho (2)
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Namibia (5)
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South Africa
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Bushveld Complex (2)
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Cape Province region (1)
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KwaZulu-Natal South Africa (1)
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Northern Cape Province South Africa (1)
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North-West Province South Africa
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Ventersdorp South Africa (1)
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Witwatersrand (1)
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Zimbabwe
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Belingwe greenstone belt (1)
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West Africa
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Cameroon
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Lake Nyos (1)
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Mount Cameroon (2)
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Nigeria
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Altiplano (2)
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Antarctica
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Arctic region
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Svalbard (2)
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Asia
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Far East
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China
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Indonesia
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Merapi (1)
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Japan
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Hokkaido
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Usu (1)
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Honshu
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Izu-shichito
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Izu-Oshima
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Shimane Japan
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Oki Islands (1)
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Kyushu
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Mongolia (2)
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Northeastern India
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Nepal (1)
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Kamchatka Russian Federation
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Krasnoyarsk Russian Federation (1)
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Middle East
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Iran
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Turkey
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Anatolia (5)
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Qiangtang Terrane (1)
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Russian Pacific region (2)
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Sakhalin Russian Federation
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Sayan
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Atlantic Ocean
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Mid-Atlantic Ridge
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Lost City hydrothermal field (1)
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TAG hydrothermal field (1)
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North Atlantic
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South Atlantic
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Teide (2)
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Faeroe Islands (7)
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Atlantic region (2)
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Australasia
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Australia
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Hill End Trough (1)
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Western Australia
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Kambalda Australia (5)
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New Zealand
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Ruapehu (2)
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Mount Egmont (1)
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Taupo (1)
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Taupo volcanic zone (1)
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Baffin Bay (2)
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Cameroon Line (1)
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Canada
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Arctic Archipelago (3)
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Eastern Canada
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Baffin Island (2)
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Belcher Islands (1)
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Maritime Provinces
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New Brunswick (4)
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Nova Scotia
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Annapolis County Nova Scotia (1)
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Cobequid Highlands (1)
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-
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Newfoundland and Labrador
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Newfoundland (2)
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Ontario
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Algoma District Ontario
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Mamainse Point (1)
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Cochrane District Ontario
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Kidd Creek Mine (1)
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Timmins Ontario (1)
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Sudbury Structure (1)
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Timiskaming District Ontario
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Kirkland Lake Ontario (1)
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-
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Quebec
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Abitibi County Quebec
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Chibougamau Quebec (1)
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Gaspe Peninsula (1)
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Noranda Quebec (1)
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Temiscamingue County Quebec
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Rouyn Quebec (1)
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Thetford Mines (1)
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Hudson Bay (1)
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Hudson Bay Lowlands (1)
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Nunavut
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Baffin Island (2)
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Belcher Islands (1)
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Ellesmere Island (1)
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Kaminak Lake (2)
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Sverdrup Islands
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Axel Heiberg Island (1)
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Queen Elizabeth Islands
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Ellesmere Island (1)
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Sverdrup Islands
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Axel Heiberg Island (1)
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Stikinia Terrane (1)
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Ungava (4)
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Western Canada
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British Columbia
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Bowser Basin (1)
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Prince Rupert British Columbia (1)
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Vancouver Island (1)
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Canadian Cordillera (2)
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Coppermine River (1)
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Manitoba
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Flin Flon Manitoba (2)
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Snow Lake Manitoba (2)
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Northwest Territories
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Great Slave Lake (1)
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Caribbean region
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West Indies
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Antilles
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Lesser Antilles
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Guadeloupe (1)
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Martinique
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Mount Pelee (3)
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Saint Vincent (1)
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Soufriere (1)
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Cascade Range (22)
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Cascadia subduction zone (3)
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Central America
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Costa Rica
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Irazu (1)
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El Salvador (1)
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Guatemala
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Pacaya (1)
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Nicaragua (3)
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Panama (2)
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Channeled Scabland (1)
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Chicxulub Crater (3)
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Coast Ranges (6)
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Colorado River (3)
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Columbia River (4)
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Columbia River basin (4)
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Commonwealth of Independent States
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Armenia (1)
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Caucasus
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Lesser Caucasus (1)
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Georgian Republic (1)
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Russian Federation
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Arkhangelsk Russian Federation
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Franz Josef Land (2)
-
-
Kamchatka Russian Federation
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Kamchatka Peninsula
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Sheveluch (1)
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Tolbachik (2)
-
-
-
Krasnoyarsk Russian Federation (1)
-
Russian Arctic
-
Franz Josef Land (2)
-
-
Russian Pacific region (2)
-
Sakhalin Russian Federation
-
Kuril Islands
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Etorofu Island (1)
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-
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Siberian Platform (3)
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Tunguska Syneclise (1)
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Transcaucasia (1)
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Copper Canyon (1)
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Crater Lake (2)
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Craters of the Moon (4)
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Davis Strait (1)
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Deschutes River (1)
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East Pacific Ocean Islands
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Easter Island (1)
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Galapagos Islands (2)
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Hawaii
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Hawaii County Hawaii
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Hawaii Island
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Hawaiian Volcano Observatory (2)
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Kilauea (26)
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Kohala (1)
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Mauna Kea (3)
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Mauna Ulu (1)
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Puu Oo (4)
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-
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Honolulu County Hawaii
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Oahu (2)
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Kauai County Hawaii (1)
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Mauna Loa (15)
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East Rift Zone (1)
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Elba (1)
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Espanola Basin (1)
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Eurasia (2)
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Europe
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Alps (1)
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Arkhangelsk Russian Federation
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Franz Josef Land (2)
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Armenia (1)
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Caucasus
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Lesser Caucasus (1)
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Central Europe
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Germany
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Eifel (1)
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Georgian Republic (1)
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Pyrenees (1)
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Southern Europe
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Greece
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Greek Aegean Islands
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Iberian Peninsula
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Spain
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Andalusia Spain
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Italy
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Apennines
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Monte Amiata (2)
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Campania Italy
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Naples Italy
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Sicily Italy
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Mount Etna (26)
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Tuscany Italy
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France
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Pyrenees-Atlantiques France (1)
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Ireland
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Scandinavia
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Finland (1)
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Norway
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United Kingdom
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Great Britain
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England
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Scotland
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Argyllshire Scotland
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Islay (1)
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Jura Island (1)
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Mull Island (2)
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Firth of Clyde (1)
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Hebrides
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Inner Hebrides
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Mull Island (2)
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Highland region Scotland
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Inverness-shire Scotland
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Scottish Highlands (2)
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Wales
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Gwynedd Wales
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Pembrokeshire Wales (1)
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Northern Ireland
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Giant's Causeway (1)
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Front Range (1)
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Grand Canyon (6)
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Grays Harbor (1)
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Hartford Basin (3)
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Indian Ocean
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Arabian Sea (1)
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Great Australian Bight (1)
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Red Sea (1)
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Indian Ocean Islands
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Madagascar (2)
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Mascarene Islands
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Reunion
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Piton de la Fournaise (6)
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Piton des Neiges (1)
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Mauritius (2)
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International Ocean Discovery Program (2)
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Kerguelen Plateau (2)
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Krishna-Godavari Basin (1)
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Lake District (1)
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Leeward Islands (1)
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Medicine Lake (1)
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Mediterranean region
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Aegean Islands
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Greek Aegean Islands
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Cyclades
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Santorin (3)
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Thera (3)
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Mediterranean Sea
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East Mediterranean
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Aegean Sea (2)
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West Mediterranean
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Tyrrhenian Sea (1)
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Mexico
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Baja California Sur Mexico (1)
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Colima (2)
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Mexico state
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Federal District Mexico
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Mexico City Mexico (2)
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Nevado de Toluca (2)
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Michoacan-Guanajuato volcanic field (1)
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Nayarit Mexico (2)
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Pico de Orizaba (1)
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Popocatepetl (3)
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Puebla Mexico (1)
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Sierra Madre Occidental (3)
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Sonora Mexico (3)
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Tamaulipas Mexico
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Arroyo El Mimbral (1)
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Trans-Mexican volcanic belt (6)
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Midland Valley (1)
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Mount Baker (4)
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Mount Erebus (1)
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North America
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Appalachians
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Central Appalachians (1)
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Northern Appalachians (2)
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Piedmont (2)
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Basin and Range Province
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Great Basin (4)
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Canadian Shield
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Churchill Province
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Cape Smith fold belt (3)
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Hearne Province (1)
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Flin Flon Belt (1)
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Superior Province
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Abitibi Belt (8)
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-
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Denali Fault (1)
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Great Lakes region (4)
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Gulf Coastal Plain (1)
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Humber Zone (1)
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Keweenawan Rift (6)
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Kootenay Arc (1)
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Lake Superior region (2)
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Niagara River (1)
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North American Cordillera
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Canadian Cordillera (2)
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Rio Grande Rift (6)
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Rocky Mountains
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U. S. Rocky Mountains
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Slide Mountain Terrane (1)
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Sonoran Desert (1)
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North Island (7)
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Oceania
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Malaita (3)
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Hawaii
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Hawaii County Hawaii
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Hawaii Island
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Hawaiian Volcano Observatory (2)
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Kilauea (26)
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Kohala (1)
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Mauna Kea (3)
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Puu Oo (4)
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Honolulu County Hawaii
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Oahu (2)
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Mauna Loa (15)
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Owens Valley (2)
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Pacific Coast (5)
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Pacific Ocean
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Panama Basin (1)
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North Pacific
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Northeast Pacific
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Loihi Seamount (2)
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Northwest Pacific
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South China Sea (2)
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South Pacific
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Southeast Pacific
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West Pacific
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Ontong Java Plateau (2)
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Southwest Pacific
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Campbell Plateau (1)
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Pacific region (1)
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Pasco Basin (4)
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Puna (3)
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Quesnellia Terrane (1)
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Red Sea region (1)
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Rio Grande (1)
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Nd-144/Nd-143 (18)
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O-18/O-16 (10)
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Pb-206/Pb-204 (13)
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S-34/S-32 (2)
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-
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large-ion lithophile elements (2)
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uranium
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alkali metals
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potassium (4)
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alkaline earth metals
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calcium (1)
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magnesium (6)
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radium
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Ra-226 (2)
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Th-230/Ra-226 (1)
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strontium
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Rb-87/Sr-86 (2)
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Sr-87/Sr-86 (29)
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-
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aluminum
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Al-26 (1)
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hafnium
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iron
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lead
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Pb-206/Pb-204 (13)
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polonium
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precious metals (4)
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rare earths
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neodymium
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Nd-144/Nd-143 (18)
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Sm-147/Nd-144 (2)
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samarium
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Sm-147/Nd-144 (2)
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yttrium (1)
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noble gases
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argon (2)
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helium
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He-4/He-3 (1)
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neon (1)
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radon (1)
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oxygen
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O-17/O-16 (1)
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O-18/O-16 (10)
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phosphorus (2)
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S-34/S-32 (2)
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trace metals (1)
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fossils
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Chordata
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Vertebrata
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Reptilia
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-
-
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Invertebrata
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Cnidaria
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Scleractinia
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Porites (1)
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-
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Mollusca (2)
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Protista
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Foraminifera (3)
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lichens (1)
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Plantae
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Pteridophyta
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Spermatophyta
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Coniferales (1)
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-
-
-
-
geochronology methods
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(U-Th)/He (1)
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Ar/Ar (68)
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K/Ar (56)
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optically stimulated luminescence (1)
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tree rings (1)
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geologic age
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Cenozoic
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Quaternary
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Pleistocene
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upper Quaternary
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Brunhes Chron (2)
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-
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Tertiary
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John Day Formation (1)
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lower Tertiary (1)
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middle Tertiary (2)
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Muddy Creek Formation (1)
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Neogene
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Miocene
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Columbia River Basalt Group (50)
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Ellensburg Formation (1)
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Frenchman Springs Member (5)
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Grande Ronde Basalt (16)
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lower Miocene (4)
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middle Miocene (3)
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Picture Gorge Basalt (4)
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Saddle Mountains Basalt (10)
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upper Miocene (10)
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Wanapum Basalt (10)
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Yakima Basalt (4)
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Pliocene
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lower Pliocene (2)
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upper Pliocene (2)
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Tesuque Formation (2)
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-
Paleogene
-
Eocene
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Clarno Formation (2)
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lower Eocene
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Thebes Formation (1)
-
-
middle Eocene (1)
-
upper Eocene
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Cowlitz Formation (1)
-
-
-
lower Paleogene (1)
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Oligocene
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upper Oligocene (1)
-
-
Paleocene
-
lower Paleocene
-
Danian (1)
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K-T boundary (4)
-
-
upper Paleocene (1)
-
-
-
Shahejie Formation (1)
-
upper Tertiary (5)
-
-
upper Cenozoic
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Newer Volcanics (1)
-
-
-
Lake Bonneville (1)
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Laurentide ice sheet (1)
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Mesozoic
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Cretaceous
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Lower Cretaceous
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Albian (1)
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Neocomian (1)
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Valanginian (1)
-
-
Upper Cretaceous
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K-T boundary (4)
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Lameta Formation (1)
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Maestrichtian (1)
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-
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Great Valley Sequence (1)
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Jurassic
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Aztec Sandstone (1)
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Lower Jurassic
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Hettangian (3)
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Holyoke Basalt (2)
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lower Liassic (3)
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Middle Jurassic
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Bathonian (1)
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Upper Jurassic
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Bowser Lake Group (1)
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lower Mesozoic (1)
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Serra Geral Formation (4)
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Triassic
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Lower Triassic
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Permian-Triassic boundary (2)
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Middle Triassic (1)
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Upper Triassic
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Karmutsen Group (1)
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-
-
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MIS 2 (1)
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MIS 7 (1)
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Paleozoic
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Cambrian
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Lower Cambrian (1)
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Carboniferous
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Lower Carboniferous
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Dinantian (3)
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Mississippian
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Lower Mississippian
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Tournaisian (1)
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Middle Mississippian
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Visean (1)
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Pennsylvanian (1)
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Devonian
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Old Red Sandstone (3)
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Ordovician
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Upper Ordovician
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Permian
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Upper Permian
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Permian-Triassic boundary (2)
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-
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Silurian
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Lower Silurian (1)
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-
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Precambrian
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Archean
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Amisk Group (2)
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Mesoarchean (1)
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Neoarchean (3)
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Catoctin Formation (1)
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Hadean (1)
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Missi Group (2)
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North Shore Volcanics (3)
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Osler Series (1)
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Pongola Supergroup (1)
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Unkar Group (1)
-
upper Precambrian
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Proterozoic
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Keweenawan
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Copper Harbor Conglomerate (2)
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Portage Lake Lava Series (1)
-
-
Mesoproterozoic
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Apache Group (1)
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Helikian
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Neohelikian (1)
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-
-
Neoproterozoic
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Hadrynian (1)
-
-
Paleoproterozoic
-
Aphebian
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Hurwitz Group (1)
-
-
-
-
-
Ventersdorp Supergroup (3)
-
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Rhenohercynian (1)
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igneous rocks
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peperite (6)
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minette (1)
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monzonites (2)
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syenites (1)
-
ultramafics
-
peridotites
-
dunite (1)
-
harzburgite (1)
-
lherzolite (3)
-
spinel peridotite (1)
-
-
pyroxenite (3)
-
-
-
volcanic rocks
-
adakites (1)
-
andesites
-
boninite (1)
-
-
basalts
-
alkali basalts
-
alkali olivine basalt (6)
-
hawaiite (6)
-
mugearite (2)
-
spilite (1)
-
trachybasalts (3)
-
-
columnar basalt (4)
-
flood basalts (46)
-
mid-ocean ridge basalts (11)
-
ocean-island basalts (5)
-
olivine basalt (1)
-
olivine tholeiite (1)
-
shoshonite (6)
-
tholeiite (13)
-
tholeiitic basalt (9)
-
trap rocks (6)
-
-
basanite
-
ankaramite (2)
-
-
benmoreite (1)
-
dacites (24)
-
glasses
-
obsidian (7)
-
palagonite (2)
-
perlite (1)
-
volcanic glass (6)
-
-
komatiite (16)
-
latite (2)
-
leucitite (1)
-
limburgite (1)
-
nephelinite (3)
-
phonolites (8)
-
pyroclastics
-
ash-flow tuff (10)
-
hyaloclastite (8)
-
ignimbrite (12)
-
pumice (13)
-
rhyolite tuff (1)
-
scoria (18)
-
tuff (34)
-
tuffite (1)
-
-
rhyodacites (7)
-
rhyolites
-
pantellerite (1)
-
-
trachyandesites
-
absarokite (1)
-
-
trachytes (9)
-
-
-
ophiolite (2)
-
volcanic ash (11)
-
wehrlite (1)
-
-
metamorphic rocks
-
metamorphic rocks
-
eclogite (1)
-
granulites (1)
-
hornfels (1)
-
marbles
-
ophicalcite (1)
-
-
metaigneous rocks
-
metabasalt (4)
-
metadacite (1)
-
metakomatiite (4)
-
serpentinite (1)
-
-
metasedimentary rocks
-
metapelite (1)
-
-
metasomatic rocks
-
serpentinite (1)
-
skarn (1)
-
-
metavolcanic rocks (13)
-
migmatites (1)
-
-
ophiolite (2)
-
turbidite (2)
-
-
meteorites
-
meteorites
-
stony meteorites
-
achondrites
-
Martian meteorites
-
SNC Meteorites
-
nakhlite (1)
-
-
-
-
-
-
-
minerals
-
alloys (1)
-
carbonates
-
aragonite (1)
-
Iceland spar (1)
-
-
halides
-
chlorides (1)
-
-
minerals (7)
-
native elements (1)
-
oxides
-
chromite (1)
-
hematite (3)
-
ilmenite (1)
-
iron oxides (3)
-
magnetite (8)
-
perovskite (1)
-
pseudobrookite (1)
-
titanomagnetite (2)
-
-
phosphates
-
apatite (6)
-
monazite (1)
-
-
silicates
-
chain silicates
-
aenigmatite group
-
sapphirine (1)
-
-
amphibole group
-
clinoamphibole
-
hornblende (1)
-
kaersutite (2)
-
-
-
pyroxene group
-
clinopyroxene
-
augite (3)
-
diopside (1)
-
pigeonite (2)
-
-
orthopyroxene
-
enstatite (1)
-
-
-
-
framework silicates
-
feldspar group
-
alkali feldspar
-
adularia (1)
-
anorthoclase (2)
-
cryptoperthite (1)
-
K-feldspar (1)
-
sanidine (4)
-
-
plagioclase
-
anorthite (1)
-
-
-
silica minerals
-
amethyst (2)
-
chalcedony (1)
-
quartz (4)
-
-
zeolite group
-
analcime (1)
-
clinoptilolite (1)
-
heulandite (1)
-
laumontite (1)
-
-
-
orthosilicates
-
nesosilicates
-
olivine group
-
fayalite (1)
-
forsterite (3)
-
laihunite (1)
-
olivine (13)
-
-
zircon group
-
zircon (16)
-
-
-
sorosilicates
-
epidote group
-
epidote (2)
-
-
-
-
ring silicates
-
cordierite (1)
-
milarite group
-
osumilite (1)
-
-
-
sheet silicates
-
clay minerals
-
allophane (1)
-
halloysite (1)
-
nontronite (2)
-
saponite (1)
-
smectite (3)
-
vermiculite (1)
-
-
mica group
-
biotite (2)
-
celadonite (2)
-
glauconite (1)
-
muscovite (1)
-
phlogopite (1)
-
-
-
-
sulfates
-
alunite (2)
-
anhydrite (1)
-
barite (1)
-
gypsum (1)
-
-
sulfides
-
chalcopyrite (2)
-
galena (1)
-
molybdenite (1)
-
nickel sulfides (2)
-
sphalerite (2)
-
-
wehrlite (1)
-
-
Primary terms
-
absolute age (145)
-
Africa
-
Afar (1)
-
Central Africa
-
Congo Democratic Republic
-
Kivu Congo Democratic Republic
-
Nyiragongo (1)
-
-
-
-
East Africa
-
Afar Depression (1)
-
Ethiopia
-
Fantale (1)
-
-
Kenya (3)
-
Tanzania
-
Kilimanjaro (1)
-
Oldoinyo Lengai (1)
-
-
-
East African Rift (2)
-
Gregory Rift (1)
-
Madagascar (2)
-
Namib Desert (1)
-
North Africa
-
Egypt (2)
-
Libya
-
Garian Libya (1)
-
-
Morocco
-
Rif (2)
-
-
-
Southern Africa
-
Botswana (1)
-
Kaapvaal Craton (2)
-
Karoo Basin (2)
-
Lesotho (2)
-
Namibia (5)
-
South Africa
-
Bushveld Complex (2)
-
Cape Province region (1)
-
KwaZulu-Natal South Africa (1)
-
Northern Cape Province South Africa (1)
-
North-West Province South Africa
-
Ventersdorp South Africa (1)
-
-
Witwatersrand (1)
-
-
Zimbabwe
-
Belingwe greenstone belt (1)
-
-
-
West Africa
-
Cameroon
-
Lake Nyos (1)
-
Mount Cameroon (2)
-
-
Nigeria
-
Niger Delta (1)
-
-
-
-
Antarctica
-
Amundsen Sea (1)
-
Antarctic Peninsula
-
Graham Land (1)
-
Larsen Ice Shelf (1)
-
-
East Antarctica (2)
-
James Ross Island (2)
-
Queen Maud Land (1)
-
Ross Island (1)
-
South Shetland Islands
-
Deception Island (2)
-
-
Transantarctic Mountains
-
Queen Maud Range (1)
-
-
West Antarctica (1)
-
-
Arctic Ocean
-
Alpha Cordillera (1)
-
Amerasia Basin (1)
-
Barents Sea (1)
-
Lomonosov Ridge (1)
-
Norwegian Sea
-
More Basin (1)
-
Voring Basin (1)
-
Voring Plateau (1)
-
-
-
Arctic region
-
Greenland
-
East Greenland (1)
-
-
Russian Arctic
-
Franz Josef Land (2)
-
-
Svalbard (2)
-
-
Asia
-
Arabian Peninsula
-
Saudi Arabia (3)
-
-
Central Asia (1)
-
Far East
-
China
-
Bohaiwan Basin (1)
-
Datong China (1)
-
Heilongjiang China (1)
-
Inner Mongolia China (1)
-
Jilin China (2)
-
Kunlun Mountains (1)
-
Shanxi China (1)
-
Sichuan China (2)
-
Songliao Basin (3)
-
Xinjiang China
-
Tarim Basin (1)
-
-
Xizang China (1)
-
Yangtze Platform (1)
-
Yunnan China
-
Tengchong (1)
-
-
-
Indonesia
-
Java
-
Merapi (1)
-
-
-
Japan
-
Hokkaido
-
Usu (1)
-
-
Honshu
-
Izu-shichito
-
Izu-Oshima
-
Mount Mihara (1)
-
-
-
Shimane Japan
-
Oki Islands (1)
-
-
-
Kyushu
-
Kagoshima Japan
-
Sakura-jima (1)
-
-
Kirishima (1)
-
Nagasaki Japan
-
Unzen (2)
-
-
-
-
Mongolia (2)
-
Philippine Islands
-
Luzon (1)
-
-
Taiwan
-
Taipei Taiwan (1)
-
Tatun Shan (1)
-
-
Vietnam (1)
-
-
Himalayas
-
Lesser Himalayas (1)
-
-
Indian Peninsula
-
India
-
Andhra Pradesh India
-
Rajahmundry India (3)
-
-
Deccan Plateau (2)
-
Ghats
-
Western Ghats (1)
-
-
Gujarat India
-
Saurashtra (1)
-
-
Madhya Pradesh India
-
Chhindwara India (1)
-
-
Maharashtra India
-
Koyna River (1)
-
Lonar Crater (1)
-
Mumbai India (1)
-
-
Northeastern India
-
Meghalaya India (1)
-
-
-
Nepal (1)
-
-
Kamchatka Russian Federation
-
Kamchatka Peninsula
-
Sheveluch (1)
-
Tolbachik (2)
-
-
-
-
-