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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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Central Africa
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Congo Democratic Republic (3)
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East Africa
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Tanzania (1)
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North Africa
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Algeria (1)
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Morocco (7)
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Tunisia (2)
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Nubian Shield (1)
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Arctic region (1)
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Asia
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Central Asia
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Aral Sea (1)
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Far East
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Indonesia (1)
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Middle East
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Turkey (2)
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Atlantic Ocean
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East Atlantic (1)
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North Atlantic
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Bay of Biscay (1)
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Blake Plateau
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Blake Nose (1)
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Gorringe Bank (1)
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Gulf of Cadiz (5)
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North Sea
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Gullfaks Field (1)
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Northeast Atlantic
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Iberian abyssal plain (1)
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Scotian Shelf (1)
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Atlantic Ocean Islands
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Azores
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Madeira (1)
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Atlantic region (3)
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Australasia
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Australia
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Black Hills (1)
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Canada
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Eastern Canada
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Newfoundland and Labrador
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Newfoundland (1)
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Ontario
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Western Canada
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Southern Europe
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Iberian Massif (19)
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Iberian pyrite belt (24)
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Portugal
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Spain
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Western Europe
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Illinois (1)
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Maine
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Massachusetts
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Michigan
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Michigan Upper Peninsula
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Montana
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Nebraska
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Jefferson County Nebraska (1)
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Nevada
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Washoe County Nevada (1)
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New Mexico
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Rio Arriba County New Mexico
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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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South Dakota
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Pennington County South Dakota (1)
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Texas
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Hood County Texas (1)
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Somervell County Texas (1)
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Utah
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Kane County Utah (1)
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Salt Lake County Utah
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Bingham Utah (1)
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Wisconsin
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Forest County Wisconsin (1)
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Wyoming
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Big Horn County Wyoming (1)
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commodities
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brines (2)
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ceramic materials (5)
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clay deposits (5)
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coal deposits (1)
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construction materials
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building stone (2)
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dimension stone (1)
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energy sources (1)
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glass materials (1)
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gypsum deposits (1)
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kaolin deposits (2)
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metal ores
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antimony ores (4)
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base metals (4)
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beryllium ores (1)
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chromite ores (1)
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copper ores (16)
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gold ores (8)
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lead ores (6)
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lead-zinc deposits (2)
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lithium ores (2)
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manganese ores (2)
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mercury ores (1)
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molybdenum ores (1)
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niobium ores (1)
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polymetallic ores (4)
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pyrite ores (3)
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rare earth deposits (1)
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silver ores (3)
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tantalum ores (1)
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tin ores (15)
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tungsten ores (17)
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uranium ores (3)
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zinc ores (9)
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mineral deposits, genesis (36)
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mineral exploration (7)
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mineral resources (2)
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oil and gas fields (1)
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ornamental materials (2)
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petroleum
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natural gas (2)
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placers (1)
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sodium sulfate (1)
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elements, isotopes
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boron
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B-11/B-10 (2)
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carbon
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C-13/C-12 (11)
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C-14 (2)
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organic carbon (6)
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chemical ratios (2)
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halogens
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fluorine (2)
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hydrogen
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D/H (2)
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deuterium (1)
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isotope ratios (21)
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isotopes
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radioactive isotopes
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C-14 (2)
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stable isotopes
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B-11/B-10 (2)
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C-13/C-12 (11)
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D/H (2)
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deuterium (1)
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O-18/O-16 (13)
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Pb-207/Pb-206 (1)
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Pb-208/Pb-206 (1)
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S-34/S-32 (3)
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Sr-87/Sr-86 (5)
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Lu/Hf (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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lithium (7)
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alkaline earth metals
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barium (1)
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beryllium (1)
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radium (1)
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strontium
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Sr-87/Sr-86 (5)
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arsenic (2)
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bismuth (2)
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copper (3)
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gold (5)
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indium (1)
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iron (5)
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lead
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Pb-207/Pb-206 (1)
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Pb-208/Pb-206 (1)
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manganese (3)
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molybdenum (1)
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niobium (3)
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platinum group
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iridium (1)
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precious metals (1)
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rare earths
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cerium (1)
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lanthanum (1)
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tantalum (4)
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tin (4)
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titanium (2)
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tungsten (2)
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vanadium (1)
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zinc (4)
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zirconium (2)
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oxygen
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O-18/O-16 (13)
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selenium (1)
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sulfur
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S-34/S-32 (3)
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tellurium (1)
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trace metals (1)
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fossils
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bacteria (1)
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burrows (1)
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Chordata
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Vertebrata
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Tetrapoda
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Mammalia
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Docodonta (1)
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Theria
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Eutheria
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Primates (1)
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Reptilia
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Diapsida
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Archosauria
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Crocodilia (1)
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dinosaurs
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Saurischia
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Sauropodomorpha
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Sauropoda
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Titanosauridae (1)
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Theropoda
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Carnosauria
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Allosaurus (1)
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Synapsida
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Therapsida
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Cynodontia (1)
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Graptolithina (3)
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ichnofossils
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Cruziana (1)
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Thalassinoides (1)
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Invertebrata
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Arthropoda
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Mandibulata
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Crustacea
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Branchiopoda (1)
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Ostracoda
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Podocopida
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Cytherocopina
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Cytheracea
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Cyprideis (2)
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Trilobitomorpha
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Trilobita
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Phacopida (1)
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Redlichiida (1)
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Brachiopoda
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Articulata
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Orthida (1)
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Rhynchonellida (1)
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Bryozoa (1)
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Echinodermata
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Crinozoa
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Crinoidea (1)
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Mollusca
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Bivalvia (2)
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Cephalopoda
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Ammonites (1)
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Coleoidea
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Nautiloidea
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Gastropoda (3)
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Porifera
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Demospongea (1)
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Protista
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Foraminifera
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Rotaliina
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Robertinacea (1)
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microfossils
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Charophyta (2)
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Plantae
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Chlorophyta
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diatoms (1)
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nannofossils (5)
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Spermatophyta
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Angiospermae
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Magnoliidae (1)
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Monocotyledoneae (1)
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Gymnospermae
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Mesozoic
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Cretaceous
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Dakota Formation (1)
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Lower Cretaceous
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Albian (5)
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lower Aptian (1)
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Jurassic
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lower Liassic (1)
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middle Liassic (3)
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Pliensbachian (6)
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lower Toarcian (2)
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upper Liassic (8)
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Middle Jurassic
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Upper Jurassic
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Kimmeridge Clay (1)
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Lusitanian (1)
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Morrison Formation (2)
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Portlandian (2)
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Tithonian (3)
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Statfjord Formation (1)
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Triassic
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Upper Triassic (1)
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MIS 6 (1)
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Paleozoic
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Cambrian
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Upper Cambrian
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Furongian (1)
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Carboniferous
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Lower Carboniferous (1)
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upper Tournaisian (1)
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Middle Mississippian
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upper Visean (1)
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Upper Mississippian
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Upper Carboniferous
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Devonian
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Upper Devonian
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upper Famennian (2)
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lower Paleozoic (3)
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middle Paleozoic (2)
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upper Paleozoic (4)
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Precambrian
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ophiolite (2)
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turbidite (7)
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meteorites
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meteorites
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stony meteorites
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chondrites (1)
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minerals
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arsenates (1)
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arsenides
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arsenopyrite (3)
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carbonates
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bastnaesite (1)
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Primary terms
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Africa
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carbon
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Synapsida
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Deep Sea Drilling Project
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faults (27)
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volcanic rocks
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inclusions
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intrusions (19)
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Invertebrata
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Arthropoda
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Branchiopoda (1)
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Ostracoda
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Podocopida
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Cyprideis (2)
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-
-
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-
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Trilobitomorpha
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Trilobita
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Phacopida (1)
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Redlichiida (1)
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Brachiopoda
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Articulata
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Orthida (1)
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Bryozoa (1)
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Echinodermata
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Crinozoa
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Mollusca
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Bivalvia (2)
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Cephalopoda
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Ammonoidea
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Coleoidea
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Nautiloidea
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Gastropoda (3)
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Porifera
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Hexactinellida (2)
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Protista
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Foraminifera
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Rotaliina
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Globigerinacea
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Globigerinidae
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Globigerina
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Globigerina bulloides (1)
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Neogloboquadrina
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Neogloboquadrina pachyderma (1)
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Robertinacea (1)
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isostasy (1)
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isotopes
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stable isotopes
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Sr-87/Sr-86 (5)
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Mesozoic
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Dakota Formation (1)
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Lower Cretaceous
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Albian (5)
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Potomac Group (2)
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Upper Cretaceous
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Campanian (1)
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Jurassic
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Statfjord Formation (1)
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Triassic
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Sr-87/Sr-86 (5)
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arsenic (2)
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Ocean Drilling Program
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Leg 149
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Leg 171B
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Paleozoic
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Middle Mississippian
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Upper Mississippian
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Pennsylvanian
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Upper Carboniferous
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Devonian
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Upper Devonian
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Permian
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Silurian
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Precambrian
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coal
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GeoRef Categories
Era and Period