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Publisher
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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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Madagascar (1)
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North Africa
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Algeria
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Ahaggar (1)
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-
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Southern Africa
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South Africa
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Cape Province region (1)
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Zimbabwe (1)
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Antarctica
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Larsemann Hills (1)
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Arctic region
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Svalbard (1)
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Asia
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Altai Mountains (2)
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Far East
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Burma (1)
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China
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Fujian China (1)
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Sichuan China (2)
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Vietnam (1)
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Himalayas (1)
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Middle East
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Iran
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Sanandaj-Sirjan Zone (1)
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Sri Lanka (1)
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Australasia
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Australia
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Western Australia
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Yilgarn (1)
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Black Hills (2)
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Caledonides (1)
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Canada
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Cassiar Mountains (1)
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Eastern Canada
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Maritime Provinces
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New Brunswick
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Fredericton New Brunswick (1)
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Ontario
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Dryden Ontario (2)
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Kenora District Ontario (1)
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Renfrew County Ontario (1)
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Quebec (2)
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Western Canada
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British Columbia
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Revelstoke British Columbia (1)
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Manitoba
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Bernic Lake (1)
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Northwest Territories
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Yellowknife Northwest Territories (1)
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Saskatchewan (2)
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Selwyn Basin (1)
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Yukon Territory
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Commonwealth of Independent States
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Ukraine
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Zaporozhe Ukraine (1)
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Elba (3)
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Europe
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Alps
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Rhaetian Alps (1)
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Eastern Alps
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Austroalpine Zone (1)
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Swiss Alps (1)
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Western Alps (1)
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Azov region (1)
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Carpathians
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Tatra Mountains (1)
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Western Carpathians (1)
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Central Europe
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Austria
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Bohemian Massif (2)
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Czech Republic
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Bohemia (2)
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Moravia (1)
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Germany (1)
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Poland
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Dolnoslaskie Poland
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Strzegom-Sobotka Massif (2)
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Lower Silesia (3)
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Polish Sudeten Mountains (3)
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Sowie Mountains (2)
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Slovakia
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Sudeten Mountains
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Czech Sudeten Mountains (1)
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Polish Sudeten Mountains (3)
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Sowie Mountains (2)
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Switzerland
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Swiss Alps (1)
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Valais Switzerland
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Binnental (1)
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Tatra Mountains (1)
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Fennoscandia (1)
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Southern Europe
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Iberian Peninsula
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Portugal (2)
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Spain
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Castilla y Leon Spain
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Salamanca Spain (1)
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Catalonia Spain (1)
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Italy
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Latium Italy (1)
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Lombardy Italy (2)
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Tuscany Italy
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Ukraine
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Zaporozhe Ukraine (1)
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Variscides (2)
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Western Europe
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France
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Ireland
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Donegal Ireland
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Rosses Granite (1)
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Scandinavia
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Finland (3)
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Indian Ocean Islands
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Madagascar (1)
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North America
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Basin and Range Province
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Great Basin (1)
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Canadian Shield
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North American Cordillera (2)
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Rio Grande Rift (1)
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Rocky Mountains
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U. S. Rocky Mountains
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Sawatch Range
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Shuswap Complex (1)
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Yukon-Tanana Terrane (1)
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Saint John River (1)
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Sierra de San Luis (2)
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South America
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Argentina
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Pampean Mountains (4)
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Brazil
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Bahia Brazil (3)
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Borborema (1)
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Borborema Province (1)
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Goias Brazil (2)
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Minas Gerais Brazil (9)
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Southern Ocean
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Prydz Bay (1)
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Spor Mountain (2)
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United States
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Arizona (1)
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Colorado
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Chaffee County Colorado
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Mount Antero (1)
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El Paso County Colorado (1)
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Sawatch Range
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Mount Antero (1)
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Connecticut (4)
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Georgia
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Troup County Georgia (1)
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Great Basin (1)
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Idaho
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Snake River plain (1)
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Maine
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Oxford County Maine (3)
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Sebago Batholith (1)
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Montana (2)
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New Hampshire (2)
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New Mexico
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Taos County New Mexico (1)
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South Dakota
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Custer County South Dakota (1)
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U. S. Rocky Mountains
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Sawatch Range
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Mount Antero (1)
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Utah
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Juab County Utah (1)
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Thomas Range (2)
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commodities
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boron deposits (1)
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ceramic materials (1)
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garnet deposits (1)
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gems (25)
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marble deposits (1)
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metal ores
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beryllium ores (7)
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cobalt ores (1)
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copper ores (1)
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gold ores (1)
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lead-zinc deposits (2)
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tungsten ores (2)
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mineral deposits, genesis (14)
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mineral exploration (2)
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nonmetal deposits (2)
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elements, isotopes
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boron
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B-11/B-10 (1)
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halogens
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fluorine (5)
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hydrogen
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D/H (5)
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deuterium (1)
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incompatible elements (1)
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isotope ratios (12)
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isotopes
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radioactive isotopes
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Pb-206/Pb-204 (1)
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Pb-207/Pb-204 (1)
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Pb-208/Pb-204 (1)
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stable isotopes
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B-11/B-10 (1)
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D/H (5)
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deuterium (1)
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Li-7/Li-6 (1)
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N-15/N-14 (1)
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Nd-144/Nd-143 (2)
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O-18/O-16 (7)
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Pb-206/Pb-204 (1)
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Pb-207/Pb-204 (1)
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Pb-207/Pb-206 (2)
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Pb-208/Pb-204 (1)
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Sr-87/Sr-86 (1)
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large-ion lithophile elements (1)
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metals
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actinides
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thorium (1)
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uranium (2)
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alkali metals
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cesium (12)
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lithium
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Li-7/Li-6 (1)
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potassium (1)
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rubidium (3)
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sodium (5)
-
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alkaline earth metals
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beryllium (23)
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magnesium (4)
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strontium
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Sr-87/Sr-86 (1)
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-
-
aluminum (4)
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chromium (4)
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cobalt (1)
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copper (1)
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hafnium (1)
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iron
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ferric iron (8)
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ferrous iron (4)
-
-
lead
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Pb-206/Pb-204 (1)
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Pb-207/Pb-204 (1)
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Pb-207/Pb-206 (2)
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Pb-208/Pb-204 (1)
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manganese (5)
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molybdenum (1)
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nickel (1)
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niobium (7)
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rare earths
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europium (1)
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neodymium
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Nd-144/Nd-143 (2)
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samarium (1)
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scandium (1)
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yttrium (3)
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tantalum (7)
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tin (1)
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titanium (2)
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vanadium (6)
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zirconium (1)
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nitrogen
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N-15/N-14 (1)
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noble gases
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argon (1)
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helium (1)
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-
oxygen
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O-18/O-16 (7)
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silicon (3)
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trace metals (1)
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geochronology methods
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Rb/Sr (2)
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Sm/Nd (2)
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U/Pb (2)
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-
geologic age
-
Cenozoic
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Tertiary
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Paleogene
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Oligocene (1)
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Mesozoic (1)
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Moldanubian (5)
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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 (1)
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Mississippian (2)
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Devonian
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Upper Devonian (2)
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Ordovician (1)
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Permian (1)
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Precambrian
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Archean (5)
-
upper Precambrian
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Proterozoic
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Neoproterozoic (2)
-
Paleoproterozoic (1)
-
-
-
-
-
igneous rocks
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igneous rocks
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kimberlite (1)
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plutonic rocks
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diorites
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trondhjemite (1)
-
-
granites
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alkali granites (1)
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aplite (1)
-
A-type granites (2)
-
granosyenite (1)
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I-type granites (1)
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leucogranite (3)
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monzogranite (2)
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rapakivi (2)
-
S-type granites (1)
-
-
monzonites (1)
-
pegmatite (79)
-
syenites
-
granosyenite (1)
-
-
ultramafics (2)
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-
porphyry (1)
-
volcanic rocks
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glasses
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obsidian (1)
-
-
pyroclastics
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tuff (1)
-
-
rhyolites (3)
-
-
-
-
metamorphic rocks
-
metamorphic rocks
-
gneisses
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paragneiss (1)
-
-
marbles (1)
-
metaigneous rocks
-
serpentinite (1)
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-
metasedimentary rocks
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paragneiss (1)
-
-
metasomatic rocks
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greisen (5)
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serpentinite (1)
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skarn (4)
-
-
metavolcanic rocks (1)
-
migmatites
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anatexite (2)
-
-
schists
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chlorite schist (1)
-
-
-
-
minerals
-
arsenides
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arsenopyrite (1)
-
-
carbonates
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bastnaesite (1)
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calcite (1)
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halides
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chlorides
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eudialyte (1)
-
-
fluorides
-
bastnaesite (1)
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fluorite (1)
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topaz (9)
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zinnwaldite (1)
-
-
-
minerals (29)
-
oxides
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alexandrite (3)
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bixbyite (1)
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bromellite (1)
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cassiterite (12)
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chrysoberyl (10)
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corundum (2)
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gahnite (2)
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goethite (2)
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hematite (2)
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ilmenite (2)
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iron oxides (1)
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magnetite (1)
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niobates
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aeschynite (1)
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columbite (16)
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euxenite (3)
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ixiolite (1)
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pyrochlore (3)
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samarskite (1)
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pseudobrookite (1)
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rutile (6)
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sapphire (1)
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spinel (2)
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spinel group (1)
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tantalates
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euxenite (3)
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ixiolite (1)
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microlite (6)
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tantalite (12)
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wodginite (1)
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uraninite (1)
-
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phosphates
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amblygonite (3)
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apatite (9)
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fluorapatite (7)
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goyazite (1)
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graftonite (2)
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herderite (1)
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lithiophilite (3)
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monazite (6)
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montebrasite (2)
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sarcopside (1)
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triphylite (3)
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xenotime (4)
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silicates
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aluminosilicates (1)
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borosilicates (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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hornblende (1)
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orthoamphibole
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holmquistite (1)
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-
-
bavenite (5)
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pyroxene group
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clinopyroxene
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diopside (1)
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spodumene (12)
-
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orthopyroxene (3)
-
-
-
framework silicates
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feldspar group
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alkali feldspar
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amazonite (1)
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K-feldspar (3)
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microcline (2)
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sanidine (1)
-
-
barium feldspar
-
paracelsian (1)
-
-
plagioclase
-
albite (5)
-
-
-
nepheline group
-
nepheline (1)
-
-
silica minerals
-
coesite (1)
-
quartz (22)
-
-
sodalite group
-
genthelvite (2)
-
helvite (3)
-
tugtupite (1)
-
-
zeolite group
-
analcime (1)
-
natrolite (1)
-
pollucite (7)
-
stilbite (1)
-
-
-
orthosilicates
-
nesosilicates
-
dumortierite (2)
-
euclase (6)
-
garnet group
-
almandine (2)
-
andradite (1)
-
grossular (1)
-
spessartine (4)
-
-
kyanite (2)
-
olivine group (2)
-
phenakite group
-
phenakite (8)
-
-
sillimanite (1)
-
staurolite (2)
-
titanite group
-
titanite (3)
-
-
topaz (9)
-
zircon group
-
zircon (10)
-
-
-
sorosilicates
-
axinite group (1)
-
bertrandite (11)
-
epidote group
-
allanite (2)
-
epidote (1)
-
-
vesuvianite (1)
-
-
-
ring silicates
-
aquamarine (7)
-
beryl (167)
-
cordierite (13)
-
emerald (17)
-
eudialyte (1)
-
milarite group
-
milarite (2)
-
osumilite (1)
-
-
tourmaline group
-
dravite (5)
-
elbaite (8)
-
foitite (1)
-
schorl (5)
-
uvite (1)
-
-
-
sheet silicates
-
chlorite group
-
chlorite (2)
-
-
clay minerals
-
kaolinite (2)
-
smectite (1)
-
-
mica group
-
biotite (3)
-
lepidolite (10)
-
muscovite (14)
-
phengite (1)
-
phlogopite (3)
-
polylithionite (1)
-
zinnwaldite (1)
-
-
petalite (4)
-
sericite (1)
-
-
-
sulfates
-
gypsum (1)
-
-
sulfides
-
arsenopyrite (1)
-
bismuthinite (1)
-
briartite (1)
-
genthelvite (2)
-
helvite (3)
-
molybdenite (3)
-
pyrite (1)
-
-
sulfosalts
-
sulfostannates
-
stannite (1)
-
-
-
-
Primary terms
-
absolute age (5)
-
Africa
-
Madagascar (1)
-
North Africa
-
Algeria
-
Ahaggar (1)
-
-
-
Southern Africa
-
South Africa
-
Cape Province region (1)
-
-
Zimbabwe (1)
-
-
-
Antarctica
-
Larsemann Hills (1)
-
-
Arctic region
-
Svalbard (1)
-
-
Asia
-
Altai Mountains (2)
-
Far East
-
Burma (1)
-
China
-
Fujian China (1)
-
Sichuan China (2)
-
-
Vietnam (1)
-
-
Himalayas (1)
-
Middle East
-
Iran
-
Sanandaj-Sirjan Zone (1)
-
-
-
Sri Lanka (1)
-
-
atmosphere (1)
-
Australasia
-
Australia
-
Western Australia
-
Yilgarn (1)
-
-
-
-
boron
-
B-11/B-10 (1)
-
-
boron deposits (1)
-
Canada
-
Cassiar Mountains (1)
-
Eastern Canada
-
Maritime Provinces
-
New Brunswick
-
Fredericton New Brunswick (1)
-
-
-
Ontario
-
Dryden Ontario (2)
-
Kenora District Ontario (1)
-
Renfrew County Ontario (1)
-
-
Quebec (2)
-
-
Western Canada
-
British Columbia
-
Revelstoke British Columbia (1)
-
-
Manitoba
-
Bernic Lake (1)
-
Tanco Pegmatite (3)
-
-
Northwest Territories
-
Yellowknife Northwest Territories (1)
-
-
Saskatchewan (2)
-
Selwyn Basin (1)
-
Yukon Territory
-
Whitehorse Yukon Territory (1)
-
-
-
-
Cenozoic
-
Tertiary
-
Paleogene
-
Oligocene (1)
-
-
-
-
ceramic materials (1)
-
chemical analysis (4)
-
crust (3)
-
crystal chemistry (41)
-
crystal growth (7)
-
crystal structure (39)
-
crystallography (3)
-
data processing (2)
-
deformation (5)
-
economic geology (6)
-
Europe
-
Alps
-
Central Alps
-
Rhaetian Alps (1)
-
-
Eastern Alps
-
Austroalpine Zone (1)
-
-
Swiss Alps (1)
-
Western Alps (1)
-
-
Azov region (1)
-
Bergell Massif (1)
-
Carpathians
-
Slovakian Carpathians (1)
-
Tatra Mountains (1)
-
Western Carpathians (1)
-
-
Central Europe
-
Austria
-
Lower Austria (1)
-
-
Bohemian Massif (2)
-
Czech Republic
-
Bohemia (2)
-
Czech Sudeten Mountains (1)
-
Moravia (1)
-
-
Germany (1)
-
Poland
-
Dolnoslaskie Poland
-
Strzegom-Sobotka Massif (2)
-
-
Lower Silesia (3)
-
Polish Sudeten Mountains (3)
-
Sowie Mountains (2)
-
-
Slovakia
-
Slovakian Carpathians (1)
-
-
Sudeten Mountains
-
Czech Sudeten Mountains (1)
-
Polish Sudeten Mountains (3)
-
Sowie Mountains (2)
-
-
Switzerland
-
Swiss Alps (1)
-
Valais Switzerland
-
Binnental (1)
-
-
-
Tatra Mountains (1)
-
-
Fennoscandia (1)
-
Southern Europe
-
Iberian Peninsula
-
Central Iberian Zone (2)
-
Portugal (2)
-
Spain
-
Castilla y Leon Spain
-
Salamanca Spain (1)
-
-
Catalonia Spain (1)
-
-
-
Italy
-
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1-20 OF 167 RESULTS FOR
beryl
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Journal Article
Predicting the Crystal Structure of Beryl from the Chemical Composition
Publisher: Mineralogical Association of Canada
Published: 29 July 2023
The Canadian Journal of Mineralogy and Petrology (2023) 61 (4): 873–897.
... include all major bond lengths and angles, atomic coordinates, polyhedral volumes and distortions, and unit-cell parameters. The mineral beryl is used here to develop such a model. Beryl (Be 3 Al 2 Si 6 O 18 ) is an ideal mineral to show that predicting the crystal structure using chemistry is possible...
Journal Article
Crystal-Chemical Observations and the Relation Between Sodium and H 2 O in Different Beryl Varieties
Journal: The Canadian Mineralogist
Publisher: Mineralogical Association of Canada
Published: 19 August 2022
The Canadian Mineralogist (2022) 60 (4): 625–675.
...Rhiana E. Henry; Lee A. Groat; R. James Evans; Jan Cempírek; Radek Škoda ABSTRACT Beryl (Be 3 Al 2 Si 6 O 18 ) is a well-known mineral, most famously in its vivid green form of emerald, but also as a range of other colors. Prominent varieties of beryl aside from emerald include aquamarine, red...
Journal Article
Phenakite and bertrandite: products of post-magmatic alteration of beryl in granitic pegmatites (Tatric Superunit, Western Carpathians, Slovakia)
Pavel Uher, Daniel Ozdín, Peter Bačík, Martin Števko, Martin Ondrejka, Olena Rybnikova, Štěpán Chládek, Jana Fridrichová, Jaroslav Pršek, Ľubica Puškelová
Journal: Mineralogical Magazine
Published: 18 August 2022
Mineralogical Magazine (2022) 86 (5): 715–729.
...Pavel Uher; Daniel Ozdín; Peter Bačík; Martin Števko; Martin Ondrejka; Olena Rybnikova; Štěpán Chládek; Jana Fridrichová; Jaroslav Pršek; Ľubica Puškelová Abstract The beryllium silicate minerals phenakite and bertrandite have been identified in granitic pegmatite dykes of the beryl-columbite...
Journal Article
The origin of gem spodumene in the Hamadan Pegmatite, Alvand Plutonic Complex, western Iran
Rasoul Sheikhi Gheshlaghi, Mansour Ghorbani, Ali Asghar Sepahi, Reza Deevsalar, Kazuo Nakashima, Ryuichi Shinjo
Journal: The Canadian Mineralogist
Publisher: Mineralogical Association of Canada
Published: 29 March 2022
The Canadian Mineralogist (2022) 60 (2): 249–266.
.... There is a pegmatitic vein within the Hamadan garnet (± andalusite ± staurolite) schist adjacent to the Alvand Plutonic Complex (APC), south of Hamedan city (western Iran), in which large crystals of gem spodumene occur together with quartz, amazonite, beryl, tourmaline, and apatite. This spodumene-bearing pegmatite...
Journal Article
Anatectic Granitic Pegmatites from the Eastern Alps: A Case of Variable Rare Metal Enrichment During High-Grade Regional Metamorphism. III: Fluid Inclusions as Potential Indicators for Anatectic Pegmatite Parent Melt Formation
Journal: The Canadian Mineralogist
Publisher: Mineralogical Association of Canada
Published: 22 February 2022
The Canadian Mineralogist (2022) 60 (1): 155–169.
...Kurt Krenn; Jürgen Konzett; Roland Stalder ABSTRACT Fluid inclusions trapped in quartz, beryl, and cassiterite from a granitic pegmatite of the Austroalpine basement of the Eastern Alps in Northern Italy were analyzed using a cooling/heating stage and micro-Raman spectroscopy with the following...
Journal Article
Alumino-oxy-rossmanite from pegmatites in Variscan metamorphic rocks from Eibenstein an der Thaya, Lower Austria, Austria: A new tourmaline that represents the most Al-rich end-member composition
Andreas Ertl, John M. Hughes, Stefan Prowatke, Thomas Ludwig, Christian L. Lengauer, Hans-Peter Meyer, Gerald Giester, Uwe Kolitsch, Albert Prayer
Journal: American Mineralogist
Publisher: Mineralogical Society of America
Published: 01 February 2022
American Mineralogist (2022) 107 (2): 157–166.
... in Å ( I ) hkl ] are: 2.5534 (100) 051, 3.9508 (85) 220, 2.9236 (78) 122, 4.1783 (61) 211, 2.4307 (55) 012, 2.0198 (39) 152, 1.8995 (30) 342, 6.294 (28) 101. The most common associated minerals are quartz, albite, microcline, and apatite. Beryl and, in places, schorl are also found as primary pegmatitic...
Journal Article
Johnkoivulaite, Cs(Be 2 B)Mg 2 Si 6 O 18 , a new mineral of the beryl group from the gem deposits of Mogok, Myanmar
Aaron C. Palke, Lawrence M. Henling, Chi Ma, George R. Rossman, Ziyin Sun, Nathan Renfro, Anthony R. Kampf, Kyaw Thu, Nay Myo, Patcharee Wongrawang, Vararut Weeramonkhonlert
Journal: American Mineralogist
Publisher: Mineralogical Society of America
Published: 01 November 2021
American Mineralogist (2021) 106 (11): 1844–1851.
...Aaron C. Palke; Lawrence M. Henling; Chi Ma; George R. Rossman; Ziyin Sun; Nathan Renfro; Anthony R. Kampf; Kyaw Thu; Nay Myo; Patcharee Wongrawang; Vararut Weeramonkhonlert Abstract A new mineral of the beryl group, johnkoivulaite, Cs(Be 2 B)Mg 2 Si 6 O 18 , was recovered from the gem gravels...
Journal Article
Microlite-group minerals: tracers of complex post-magmatic evolution in beryl–columbite granitic pegmatites, Maršíkov District, Bohemian Massif, Czech Republic
Journal: Mineralogical Magazine
Published: 14 July 2021
Mineralogical Magazine (2021) 85 (5): 725–743.
..., Scheibengraben and Bienergraben beryl–columbite pegmatites in the Maršíkov District (Silesian Unit, Bohemian Massif, Czech Republic). Textural and compositional variations of microlite-group minerals were examined using electron probe micro-analyses and microRaman spectroscopy (μRS). A complex post-magmatic...
Journal Article
A Crystallographically Supported Equation for Calculating Water in Emerald from the Sodium Content
Journal: The Canadian Mineralogist
Publisher: Mineralogical Association of Canada
Published: 01 April 2021
The Canadian Mineralogist (2021) 59 (2): 337–354.
...Rhiana E. Henry; Lee A. Groat; R. James Evans; Jan Cempírek; Radek Škoda ABSTRACT Emerald is the most well-recognized beryl (Be 3 Al 2 Si 6 O 18 ) variety, and although it has been extensively studied, a satisfactory method for quantifying the water content within the structural channels...
Journal Article
Mineralogical classification and crystal water characterisation of beryl from the W–Sn–Be occurrence of Xuebaoding, Sichuan province, western China
Ping Wang, Thomas P. Gray, Zhe Li, Evan J.D. Anderson, Julien Allaz, Joseph R. Smyth, Alan E. Koenig, Lijian Qi, Yan Zhou, Markus B. Raschke
Journal: Mineralogical Magazine
Published: 03 February 2021
Mineralogical Magazine (2021) 85 (2): 172–188.
...Ping Wang; Thomas P. Gray; Zhe Li; Evan J.D. Anderson; Julien Allaz; Joseph R. Smyth; Alan E. Koenig; Lijian Qi; Yan Zhou; Markus B. Raschke Abstract Beryl from Xuebaoding, Sichuan Province, western China is known for its unusual tabular habit and W–Sn–Be paragenesis in a greisen-type deposit...
Journal Article
In situ observations of the transition between beryl and phenakite in aqueous solutions using a hydrothermal diamond-anvil cell
Journal: The Canadian Mineralogist
Publisher: Mineralogical Association of Canada
Published: 21 December 2020
The Canadian Mineralogist (2020) 58 (6): 803–814.
...Xian Wang; Jiankang Li ABSTRACT Beryl and phenakite are important industrial beryllium minerals. In the hydrous melt of the BeO–Al 2 O 3 –SiO 2 –H 2 O (BASH) system, experiments using quench-type high-temperature and high-pressure equipment have revealed that the different activities of Al 2 O 3...
Journal Article
Secondary beryl in cordierite/sekaninaite pseudomorphs from granitic pegmatites – A monitor of elevated content of beryllium in the precursor
Petr Gadas, Milan Novák, Michaela Vašinová Galiová, Adam Szuszkiewicz, Adam Pieczka, Jakub Haifler, Jan Cempírek
Journal: The Canadian Mineralogist
Publisher: Mineralogical Association of Canada
Published: 21 December 2020
The Canadian Mineralogist (2020) 58 (6): 785–802.
..., chlorite and/or, biotite, along with several less common secondary minerals, including mainly paragonite, tourmaline, and secondary beryl. The mixture is a common product of early subsolidus hydrothermal alteration at the examined pegmatites of the beryl-columbite subtype – Věžná I and Drahonín...
Journal Article
Compositional and textural variations of columbite-group minerals from beryl-columbite pegmatites in the Maršíkov District, Bohemian Massif, Czech Republic: Magmatic versus hydrothermal evolution
Journal: The Canadian Mineralogist
Publisher: Mineralogical Association of Canada
Published: 24 November 2020
The Canadian Mineralogist (2020) 58 (6): 767–783.
...Štěpán Chládek; Pavel Uher; Milan Novák ABSTRACT We studied compositional variations in columbite group minerals (CGM) from several granitic pegmatites of the beryl-columbite subtype in the Maršíkov district, Silesian Domain of the Bohemian Massif, Czech Republic. The CGM are characterized...
Journal Article
Oxycalciomicrolite, (Ca,Na) 2 (Ta,Nb,Ti) 2 O 6 (O,F), a new member of the microlite group (pyrochlore supergroup) from the Paleoproterozoic São João del Rei Pegmatite Province, Minas Gerais state, Brazil
Victor H.R. Menezes da Silva, Ciro A. Ávila, Reiner Neumann, Fabiano R.L. Faulstich, Felipe E.A. Alves, Filipe B. de Almeida, Tais Proença Cidade, Sarah Siqueira da Cruz Guimarães Sousa
Journal: Mineralogical Magazine
Published: 25 September 2020
Mineralogical Magazine (2020) 84 (6): 854–858.
...-(Y), zircon, beryl, spinel, epidote and garnet-group minerals. Oxycalciomicrolite is found as octahedral crystals, occasionally modified to rhombododecahedra, ranging from 0.2 to 0.5 mm in size. The crystals are brownish-yellow to brownish-red and translucent, with white streak and vitreous...
Journal Article
A new emerald occurrence from Kruta Balka, Western Peri-Azovian region, Ukraine: Implications for understanding the crystal chemistry of emerald
Gerhard Franz, Oleksii Vyshnevskyi, Michail Taran, Vladimir Khomenko, Michael Wiedenbeck, Ferry Schiperski, Jörg Nissen
Journal: American Mineralogist
Publisher: Mineralogical Society of America
Published: 01 February 2020
American Mineralogist (2020) 105 (2): 162–181.
...Gerhard Franz; Oleksii Vyshnevskyi; Michail Taran; Vladimir Khomenko; Michael Wiedenbeck; Ferry Schiperski; Jörg Nissen Abstract We investigated emerald, the bright-green gem variety of beryl, from a new locality at Kruta Balka, Ukraine, and compare its chemical characteristics with those...
Journal Article
Giant spodumene and montebrasite crystals from the Plumbago North pegmatite, Oxford County, Maine
Journal: The Canadian Mineralogist
Publisher: Mineralogical Association of Canada
Published: 30 September 2019
The Canadian Mineralogist (2019) 57 (5): 795–797.
.... Montebrasite, beryl, cassiterite, almandine–spessartine series garnets, fluorapatite and columbite group species are also present. To date, schorl, lepidolite and pollucite are extremely rare. The columbite-group minerals include ferrocolumbite, manganocolumbite and ferrotapiolite. Triphylite pods up to 50...
Journal Article
Comments on Beryl Colors and on Other Observations Regarding Iron-containing Beryls
Journal: The Canadian Mineralogist
Publisher: Mineralogical Association of Canada
Published: 15 July 2019
The Canadian Mineralogist (2019) 57 (4): 551–566.
...Lars Olov Andersson Abstract Trivalent iron ions substituting for Al 3+ are present in many beryls and are abundant in dark red and dark blue beryl. These ions do not contribute any color to the crystals. Dark blue beryl also contains octahedral Fe 2+ ions, which are involved in giving the crystal...
Journal Article
The role of magmatic and hydrothermal processes in the formation of miarolitic gem beryl from the Luumäki pegmatite, SE Finland
Journal: European Journal of Mineralogy
Publisher: GeoScienceWorld Journals
Published: 01 May 2019
European Journal of Mineralogy (2019) 31 (3): 507–518.
...Radoslaw Markus Michallik; Thomas Wagner; Osmo Tapani Rämö; Pasi Heikkilä Miarolitic pockets from the 1628 Ma Luumäki pegmatite in SE Finland contain gem-quality beryl (heliodor) within a matrix of reddish hematite, biotite, muscovite, chlorite, quartz, kaolinite, and bertrandite. Two different...
Journal Article
Beusite-(Ca), ideally CaMn 2 2+ (PO 4 ) 2 , a new graftonite-group mineral from the Yellowknife pegmatite field, Northwest Territories, Canada: Description and crystal structure
Frank C. Hawthorne, Michael A. Wise, Petr Černý, Yassir A. Abdu, Neil A. Ball, Adam Pieczka, Adam Włodek
Journal: Mineralogical Magazine
Published: 01 December 2018
Mineralogical Magazine (2018) 82 (6): 1323–1332.
... in a beryl–columbite–phosphate rare-element pegmatite where it is commonly intergrown with triphylite–lithiophilite or sarcopside, and may form by exsolution from a high-temperature (Li,Ca)-rich graftonite-like parent phase. It occurs as pale-brown lamellae 0.1–1.5 mm wide in triphylite, and is pale brown...
Journal Article
Graftonite-(Mn), ideally M1 Mn M2,M3 Fe 2 (PO 4 ) 2 , and graftonite-(Ca), ideally M1 Ca M2,M3 Fe 2 (PO 4 ) 2 , two new minerals of the graftonite group from Poland
Adam Pieczka, Frank C. Hawthorne, Neil Ball, Yassir Abdu, Bożena Gołębiowska, Adam Włodek, Jan Żukrowski
Journal: Mineralogical Magazine
Published: 01 December 2018
Mineralogical Magazine (2018) 82 (6): 1307–1322.
... discovered in phosphate nodules of two beryl–columbite–phosphate pegmatites at Lutomia and Michałkowa, respectively, in the Góry Sowie Block, Lower Silesia, southwest Poland. Graftonite-(Mn) is pinkish brown, whereas graftonite-(Ca) shows more brownish colouration. Both minerals have a vitreous lustre...
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beryl
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