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all geography including DSDP/ODP Sites and Legs
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Africa
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Madagascar (1)
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North Africa
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Algeria
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Ahaggar (1)
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Southern Africa
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Namibia (1)
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South Africa
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Bushveld Complex (3)
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Merensky Reef (1)
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Transvaal region (3)
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Witwatersrand (1)
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Zimbabwe
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Great Dyke (1)
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West Africa
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Nigeria
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Niger Delta (1)
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Antarctica
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Arctic region
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Greenland
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Asia
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Far East
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Philippine Islands
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Krasnoyarsk Russian Federation
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Commonwealth of Independent States
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Russian Federation
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Murmansk Russian Federation
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Yakutia Russian Federation (1)
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Europe
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Mexico
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North America
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Basin and Range Province
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Great Basin (2)
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Belt Basin (8)
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Canadian Shield
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Disturbed Belt (4)
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Glacier National Park (7)
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Great Plains
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Gulf Coastal Plain (3)
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North American Cordillera
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Northern Rocky Mountains (19)
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U. S. Rocky Mountains
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Absaroka Range
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Beartooth Mountains (28)
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Big Belt Mountains (5)
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Tobacco Root Mountains (4)
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Rocky Mountains foreland (8)
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Pacific Ocean
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North Pacific
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Northwest Pacific
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West Pacific
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Northwest Pacific
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South China Sea
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Peace River (2)
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Ruby Range (5)
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South America
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Brazil
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Chile
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Peru (1)
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Venezuela
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Maracaibo Basin (1)
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Taranaki Basin (1)
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United States
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Alabama (3)
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Alaska
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Fairbanks District (1)
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Prudhoe Bay (1)
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Arizona
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Mogollon Rim (1)
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Arkansas
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Garland County Arkansas (1)
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Bighorn Basin (19)
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California
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Imperial County California (1)
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Shasta County California
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Lassen Peak (1)
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Sierra Nevada Batholith (1)
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Southern California (1)
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Cedar Creek Anticline (5)
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Cheyenne Belt (2)
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Coeur d'Alene mining district (2)
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Colorado
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Arapahoe County Colorado (1)
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Gunnison County Colorado (1)
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Lake County Colorado
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Pueblo County Colorado
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Great Basin (2)
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Idaho
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Coeur d'Alene River (1)
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Custer County Idaho (2)
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Idaho County Idaho (1)
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Lemhi County Idaho (3)
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Lost River Fault (2)
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Idaho Batholith (7)
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Illinois (9)
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Indiana (1)
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Iowa
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Clinton County Iowa (1)
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Kansas (6)
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Lewis and Clark Lineament (1)
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Louisiana (2)
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Maine (1)
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Maryland (1)
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Michigan (4)
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Midcontinent (1)
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Minnesota
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Duluth Complex (1)
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Pennington County Minnesota (1)
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Mississippi (1)
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Mississippi River (2)
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Mississippi Valley (1)
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Missouri
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Saint Louis County Missouri
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Saint Louis Missouri (1)
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-
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Missouri River (5)
-
Montana
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Beaverhead County Montana (8)
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Big Belt Mountains (5)
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Big Snowy Mountains (1)
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Boulder Batholith (11)
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Bridger Range (10)
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Broadwater County Montana (10)
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Butte mining district (17)
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Cascade County Montana (4)
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Crazy Mountains Basin (2)
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Deer Lodge County Montana (9)
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Fergus County Montana (1)
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Gallatin County Montana
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Three Forks Montana (3)
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-
Granite County Montana (7)
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Gravelly Range (1)
-
Jefferson County Montana (28)
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Judith Basin County Montana (1)
-
Lewis and Clark County Montana
-
Helena Montana (6)
-
-
Lincoln County Montana
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Libby Montana (2)
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Little Belt Mountains (11)
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Madison County Montana
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Tobacco Root Mountains (4)
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-
Meagher County Montana (9)
-
Park County Montana (19)
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Powell County Montana (9)
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Ravalli County Montana (3)
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Silver Bow County Montana
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Butte Montana (32)
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-
Sweet Grass County Montana (3)
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Teton County Montana (1)
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Moxa Arch (1)
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Nebraska
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Sioux County Nebraska (2)
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Nevada
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Elko County Nevada (1)
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Lyon County Nevada
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White Pine County Nevada (2)
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New Mexico
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Grant County New Mexico
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Santa Rita New Mexico (1)
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New York
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Saint Lawrence County New York
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Balmat-Edwards mining district (1)
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North Dakota
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Kidder County North Dakota (1)
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McHenry County North Dakota (1)
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Towner County North Dakota (1)
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Ohio
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Hamilton County Ohio
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Cincinnati Ohio (1)
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Oklahoma
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Pontotoc County Oklahoma (1)
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Oregon (9)
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Paradox Basin (1)
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Pennsylvania (3)
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Powder River basin (20)
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Rhode Island (1)
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Sevier orogenic belt (9)
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South Carolina (2)
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South Dakota
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Harding County South Dakota (1)
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Shannon County South Dakota (1)
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Southwestern U.S. (1)
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Tennessee (5)
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Texas
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Fort Worth Basin (1)
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Galveston County Texas
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Galveston Island (1)
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Midland Basin (1)
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West Texas (1)
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U. S. Rocky Mountains
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Absaroka Range
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Beartooth Mountains (28)
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Big Belt Mountains (5)
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Bighorn Mountains (7)
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Bridger Range (10)
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Gravelly Range (1)
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Little Belt Mountains (11)
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Medicine Bow Mountains (1)
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Sangre de Cristo Mountains (1)
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Spanish Peaks (1)
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Tobacco Root Mountains (4)
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Uinta Mountains (1)
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Wind River Range (4)
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Utah
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Cache County Utah (2)
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Millard County Utah
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Salt Lake County Utah
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Virginia (3)
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commodities
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palladium ores (6)
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polymetallic ores (5)
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silver ores (22)
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mineral deposits, genesis (99)
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mineral exploration (14)
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placers (6)
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elements, isotopes
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carbon
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halogens
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fluorine (1)
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hydrogen
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stable isotopes
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deuterium (6)
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Nd-144/Nd-143 (3)
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O-18/O-16 (22)
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Os-188/Os-187 (1)
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Pb-206/Pb-204 (4)
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Pb-207/Pb-204 (3)
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Pb-208/Pb-204 (3)
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Re-187/Os-188 (1)
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S-34/S-32 (11)
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Sr-87/Sr-86 (11)
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Lu/Hf (1)
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metals
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actinides
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thorium (2)
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uranium
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alkali metals
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potassium (1)
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rubidium (1)
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alkaline earth metals
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beryllium
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calcium (1)
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strontium
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Sr-87/Sr-86 (11)
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aluminum (2)
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cadmium (2)
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ferrous iron (2)
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lead
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platinum group
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Re-187/Os-188 (1)
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palladium (6)
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palladium ores (6)
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noble gases
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oxygen
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Tetrapoda
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Mammalia
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Saurischia
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Lepidosauria
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cyanobacteria (1)
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ichnofossils (5)
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Invertebrata
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Arthropoda
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Chelicerata
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Arachnida (1)
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Mandibulata
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Crustacea
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Ostracoda (6)
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Insecta
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Pterygota
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Neoptera
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Endopterygota
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Exopterygota
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Hemiptera (1)
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-
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-
-
Trilobitomorpha
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Trilobita
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Agnostida (1)
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-
-
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Brachiopoda
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Articulata
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Rhynchonellida (1)
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Spiriferida
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Cyrtospirifer (1)
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Inarticulata
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Lingula (1)
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Bryozoa (5)
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Cnidaria
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Echinodermata
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Crinozoa
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Blastoidea (1)
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Crinoidea (6)
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Echinozoa
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Holothuroidea (1)
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Mollusca
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Bivalvia
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Heterodonta
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Veneroida (1)
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Ostreoidea
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Ostreidae
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Ostrea (2)
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Palaeoheterodonta
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Unionidae (2)
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Pterioida
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Pteriina
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Inocerami
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Inoceramidae
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Inoceramus (1)
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-
-
-
-
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Cephalopoda
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Ammonoidea
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Ammonites (3)
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Scaphites (1)
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Nautiloidea (1)
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Gastropoda
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Mesogastropoda (1)
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Pulmonata
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Stylommatophora (2)
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Pupillidae (1)
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Hyolithes (1)
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Porifera (1)
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Protista
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Foraminifera
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Fusulinina
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Endothyra (2)
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Fusulinidae (1)
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Vermes
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Annelida (1)
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Metazoa (1)
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microfossils
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Conodonta (13)
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Fusulinina
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Endothyra (2)
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Fusulinidae (1)
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problematic microfossils (1)
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palynomorphs
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acritarchs (3)
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megaspores (1)
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miospores
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pollen (2)
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Plantae
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algae
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diatoms (2)
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Spermatophyta
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Gymnospermae
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Ginkgoales
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Ginkgo (1)
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problematic fossils
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problematic microfossils (1)
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thallophytes (7)
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tracks (1)
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trails (1)
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geochronology methods
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Ar/Ar (11)
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exposure age (2)
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fission-track dating (1)
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K/Ar (16)
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Lu/Hf (1)
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paleomagnetism (17)
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Pb/Pb (2)
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thermoluminescence (1)
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U/Pb (22)
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U/Th/Pb (1)
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geologic age
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Cenozoic
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Quaternary
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Cordilleran ice sheet (1)
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Holocene
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middle Holocene (1)
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Pleistocene
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Illinoian (1)
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Lake Missoula (3)
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lower Pleistocene (1)
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upper Pleistocene
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Wisconsinan
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lower Wisconsinan (1)
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-
-
-
upper Quaternary (2)
-
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Tertiary
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Arikareean (5)
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Challis Volcanics (2)
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Cypress Hills Formation (2)
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John Day Formation (1)
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lower Tertiary (8)
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middle Tertiary (3)
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Neogene
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Miocene
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Barstovian (2)
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lower Miocene (3)
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middle Miocene (1)
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upper Miocene (1)
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Pliocene (4)
-
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Paleogene
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Eocene
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Absaroka Supergroup (2)
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Lake Gosiute (1)
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lower Eocene
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Wasatchian (1)
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Willwood Formation (1)
-
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middle Eocene (2)
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Uintan (1)
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upper Eocene
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Chadronian (8)
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Tepee Trail Formation (1)
-
-
-
lower Paleogene (1)
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Oligocene
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Brule Formation (3)
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Frio Formation (1)
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lower Oligocene (7)
-
upper Oligocene (2)
-
-
Paleocene
-
lower Paleocene
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Danian (2)
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K-T boundary (14)
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Puercan (3)
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Torrejonian (4)
-
-
Ludlow Member (2)
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middle Paleocene (1)
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Pinyon Conglomerate (1)
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Sentinel Butte Formation (1)
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Tongue River Member (4)
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Tullock Member (4)
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upper Paleocene
-
Clarkforkian (1)
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Tiffanian (5)
-
-
-
Renova Formation (12)
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upper Paleogene (1)
-
Wasatch Formation (6)
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-
-
-
Mesozoic
-
Cretaceous
-
Blairmore Group (1)
-
Colorado Group (5)
-
Comanchean (1)
-
Dakota Formation (2)
-
Graneros Shale (1)
-
Lower Cretaceous
-
Albian (2)
-
Bear River Formation (1)
-
Blackleaf Formation (5)
-
Cloverly Formation (1)
-
Gething Formation (2)
-
Inyan Kara Group (1)
-
Kootenay Formation (1)
-
Mannville Group (2)
-
Mowry Shale (9)
-
Muddy Sandstone (10)
-
Skull Creek Shale (4)
-
-
Mancos Shale (1)
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Upper Cretaceous
-
Bearpaw Formation (4)
-
Belle Fourche Shale (3)
-
Belly River Formation (1)
-
Bridge Creek Limestone Member (1)
-
Campanian
-
Dinosaur Park Formation (1)
-
-
Cardium Formation (1)
-
Carlile Shale (3)
-
Cenomanian (3)
-
Cody Shale (1)
-
Coniacian (2)
-
Eagle Sandstone (8)
-
Elkhorn Mountains Volcanics (1)
-
Ferron Sandstone Member (1)
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Fort Hays Limestone Member (1)
-
Fox Hills Formation (2)
-
Frontier Formation (4)
-
Fruitland Formation (1)
-
Greenhorn Limestone (4)
-
Gulfian
-
Eagle Ford Formation (2)
-
-
Harebell Formation (1)
-
Hell Creek Formation (20)
-
Judith River Formation (13)
-
Kirtland Shale (1)
-
K-T boundary (14)
-
Lance Formation (7)
-
Laramie Formation (1)
-
Maestrichtian (8)
-
Maevarano Formation (1)
-
Milk River Formation (3)
-
Montana Group (4)
-
Niobrara Formation (5)
-
Oldman Formation (1)
-
Pierre Shale (3)
-
Saint Mary River Formation (1)
-
Santonian (3)
-
Senonian (15)
-
Turonian (3)
-
Tuscaloosa Formation (2)
-
Two Medicine Formation (7)
-
-
Viking Formation (1)
-
-
Jurassic
-
Bazhenov Formation (1)
-
Upper Jurassic
-
Entrada Sandstone (1)
-
Haynesville Formation (1)
-
Morrison Formation (6)
-
Oxfordian (5)
-
Salt Wash Sandstone Member (1)
-
Smackover Formation (2)
-
Stump Formation (1)
-
Sundance Formation (3)
-
Swift Formation (4)
-
-
-
Triassic
-
Lower Triassic
-
Dinwoody Formation (3)
-
Permian-Triassic boundary (1)
-
Thaynes Formation (1)
-
-
Moenkopi Formation (1)
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Upper Triassic
-
Lockatong Formation (1)
-
-
-
-
MIS 5 (1)
-
Paleozoic
-
Cambrian
-
Middle Cambrian
-
Flathead Sandstone (2)
-
-
Upper Cambrian
-
Franconia Formation (1)
-
Pilgrim Formation (3)
-
-
-
Carboniferous
-
Amsden Formation (2)
-
Big Snowy Group (1)
-
Diamond Peak Formation (1)
-
Lower Carboniferous
-
Dinantian (3)
-
-
Mississippian
-
Barnett Shale (1)
-
Bear Gulch Limestone Member (1)
-
Charles Formation (4)
-
Lower Mississippian
-
Chappel Limestone (1)
-
Lodgepole Formation (13)
-
Osagian (3)
-
Tournaisian
-
upper Tournaisian (1)
-
-
-
Madison Group (21)
-
Middle Mississippian
-
Visean (1)
-
-
Mission Canyon Limestone (4)
-
Redwall Limestone (1)
-
Upper Mississippian
-
Chesterian
-
Imo Formation (1)
-
-
Heath Formation (6)
-
Meramecian
-
Sainte Genevieve Limestone (1)
-
-
Pennington Formation (1)
-
-
-
Namurian (2)
-
Pennsylvanian
-
Lower Pennsylvanian
-
Morrowan (1)
-
-
Middle Pennsylvanian
-
Paradox Formation (1)
-
-
-
Upper Carboniferous (2)
-
-
Deadwood Formation (5)
-
Devonian
-
Middle Devonian
-
Prairie Evaporite (1)
-
-
Upper Devonian
-
Duperow Formation (6)
-
Famennian
-
upper Famennian (1)
-
Wabamun Group (2)
-
-
Frasnian (1)
-
Grosmont Formation (1)
-
Jefferson Group (3)
-
Nisku Formation (3)
-
Palliser Formation (1)
-
-
-
Exshaw Formation (1)
-
lower Paleozoic
-
Conococheague Formation (1)
-
-
middle Paleozoic (1)
-
Minnelusa Formation (2)
-
New Albany Shale (1)
-
Ordovician
-
Lower Ordovician
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Ibexian (1)
-
-
Middle Ordovician (1)
-
Trenton Group (1)
-
Upper Ordovician
-
Bighorn Dolomite (1)
-
Red River Formation (3)
-
Trentonian (1)
-
Yeoman Formation (1)
-
-
-
Permian
-
Lower Permian
-
Leonardian (1)
-
-
Phosphoria Formation (7)
-
Retort Phosphatic Shale Member (1)
-
Upper Permian
-
Permian-Triassic boundary (1)
-
-
-
Pilot Shale (1)
-
Sauk Sequence (1)
-
Silurian
-
Lower Silurian (1)
-
Upper Silurian
-
Salina Group (1)
-
-
-
Tensleep Sandstone (2)
-
upper Paleozoic
-
Antrim Shale (1)
-
Bakken Formation (8)
-
-
Woodford Shale (1)
-
-
Phanerozoic (5)
-
Precambrian
-
Archean
-
J-M Reef (12)
-
Neoarchean (2)
-
-
Gunflint Iron Formation (1)
-
middle Precambrian (1)
-
Prichard Formation (3)
-
Purcell System (2)
-
Sioux Quartzite (2)
-
Stillwater Complex (47)
-
Uinta Mountain Group (1)
-
upper Precambrian
-
Proterozoic
-
Algonkian (1)
-
Mesoproterozoic
-
Aldridge Formation (2)
-
Altyn Limestone (2)
-
Belt Supergroup (43)
-
Bonner Formation (1)
-
Helena Formation (3)
-
Helikian (1)
-
Missoula Group (6)
-
Newland Limestone (7)
-
Ravalli Group (3)
-
Revett Quartzite (1)
-
Spokane Formation (2)
-
Wallace Formation (3)
-
-
Neoproterozoic
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Hadrynian (1)
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Tonian (1)
-
-
Paleoproterozoic (5)
-
-
-
-
-
igneous rocks
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igneous rocks
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carbonatites (1)
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kimberlite (3)
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plutonic rocks
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anorthosite (3)
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diabase
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quartz diabase (1)
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diorites
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quartz diorites (1)
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tonalite (1)
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gabbros
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alkali gabbros (1)
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norite (2)
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troctolite (1)
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granites
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biotite granite (1)
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granodiorites (1)
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lamproite (2)
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lamprophyres
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camptonite (1)
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monchiquite (1)
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monzodiorite (1)
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monzonites (3)
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pegmatite (7)
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quartz monzonite (6)
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syenites
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nepheline syenite (1)
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ultramafics
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chromitite (4)
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peridotites
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dunite (1)
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pyroxenite (2)
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porphyry (8)
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volcanic rocks
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andesites (3)
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basalts
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alkali basalts (1)
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dacites (3)
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pyroclastics
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ash-flow tuff (2)
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ignimbrite (1)
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pumice (1)
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rhyolite tuff (2)
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tuff (2)
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welded tuff (2)
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rhyolites
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rhyolite porphyry (1)
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trachytes (2)
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-
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ophiolite (1)
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volcanic ash (2)
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metamorphic rocks
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K-bentonite (1)
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metabentonite (1)
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metamorphic rocks
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amphibolites (4)
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gneisses
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granite gneiss (1)
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granulites (1)
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hornfels (2)
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marbles (3)
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metaigneous rocks
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metabasite (1)
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metadiabase (1)
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metasedimentary rocks (7)
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metasomatic rocks
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skarn (3)
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metavolcanic rocks (1)
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mylonites (5)
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quartzites (3)
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schists
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biotite schist (1)
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-
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ophiolite (1)
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turbidite (1)
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minerals
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antimonides (1)
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arsenides
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sperrylite (1)
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borates
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ludwigite (1)
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carbonates
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aragonite (1)
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calcite (9)
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dolomite (5)
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rhodochrosite (1)
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siderite (1)
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witherite (1)
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halides
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chlorides
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halite (2)
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fluorides
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fluorite (1)
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-
-
K-bentonite (1)
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metabentonite (1)
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minerals (30)
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molybdates
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powellite (1)
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native elements
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graphite (3)
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oxalates
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whewellite (1)
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oxides
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alexandrite (1)
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baddeleyite (2)
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chromite (6)
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corundum (2)
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ferrihydrite (1)
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goethite (1)
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hematite (1)
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hydroxides
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oxyhydroxides (2)
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ilmenite (1)
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iron oxides (1)
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limonite (1)
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magnetite (2)
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manganese oxides (2)
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niobates
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loparite (1)
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perovskite (1)
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rutile (1)
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sapphire (4)
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spinel (1)
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spinel group (1)
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tantalates
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stibiotantalite (1)
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todorokite (1)
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vernadite (1)
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phosphates
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apatite (6)
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hydroxylapatite (2)
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strengite (1)
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turquoise (1)
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platinum minerals (4)
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silicates
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aluminosilicates (1)
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asbestos (1)
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chain silicates
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aenigmatite group
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sapphirine (1)
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amphibole group
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clinoamphibole
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cummingtonite (1)
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hastingsite (1)
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hornblende (5)
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orthoamphibole
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anthophyllite (1)
-
-
-
pyroxene group
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clinopyroxene
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augite (1)
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fassaite (1)
-
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orthopyroxene
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enstatite (1)
-
-
-
wollastonite group
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wollastonite (1)
-
-
-
framework silicates
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feldspar group
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alkali feldspar
-
sanidine (1)
-
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plagioclase
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bytownite (1)
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peristerite (1)
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-
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leucite (1)
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myrmekite (1)
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nepheline group
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nepheline (1)
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pseudoleucite (1)
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silica minerals
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agate (1)
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chalcedony (1)
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quartz (10)
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sodalite group
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genthelvite (1)
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helvite (2)
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sodalite (2)
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zeolite group
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analcime (1)
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chabazite (1)
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heulandite (1)
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laumontite (2)
-
-
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orthosilicates
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nesosilicates
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andalusite (3)
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dumortierite (3)
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garnet group (3)
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kyanite (1)
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olivine group
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monticellite (1)
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olivine (3)
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sillimanite (2)
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titanite group
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titanite (1)
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-
zircon group
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zircon (24)
-
-
-
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ring silicates
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beryl (2)
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cordierite (1)
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emerald (1)
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tourmaline group
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schorl (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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beidellite (1)
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kaolinite (4)
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smectite (12)
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vermiculite (3)
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clintonite (2)
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corrensite (2)
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hydrobiotite (1)
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illite (15)
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mica group
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annite (1)
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biotite (16)
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muscovite (5)
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phlogopite (2)
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rectorite (1)
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sericite (2)
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serpentine group
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serpentine (1)
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talc (1)
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-
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sulfates
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barite (1)
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jarosite (2)
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sulfides
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alabandite (1)
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chalcocite (1)
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chalcopyrite (6)
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cooperite (1)
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covellite (1)
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genthelvite (1)
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helvite (2)
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iron sulfides (2)
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nickel sulfides (1)
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pyrite (4)
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sulfosalts
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boulangerite (1)
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sulfogermanates
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renierite (1)
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sulfovanadates
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-
-
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tellurates (1)
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tellurides
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calaverite (1)
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hessite (1)
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tungstates
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scheelite (2)
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uranium minerals (1)
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Primary terms
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absolute age (53)
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academic institutions (1)
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Africa
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Madagascar (1)
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North Africa
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Algeria
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Southern Africa
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Namibia (1)
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South Africa
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Bushveld Complex (3)
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Merensky Reef (1)
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Transvaal region (3)
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Zimbabwe
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Great Dyke (1)
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West Africa
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Antarctica
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Asia
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Philippine Islands
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Krasnoyarsk Russian Federation
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associations (2)
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asteroids (1)
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Atlantic Ocean
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atmosphere (1)
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Australasia
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