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all geography including DSDP/ODP Sites and Legs
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Africa
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Afar (13)
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Blue Nile (3)
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Central Africa
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Angola (1)
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Ethiopia
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Tigray Ethiopia (2)
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Wallo Ethiopia (1)
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Ethiopian Rift (22)
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Kenya
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Kenya Rift valley (7)
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Nunavut
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Central America
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Caucasus
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Russian Federation
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Baikal rift zone (2)
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Krasnoyarsk Russian Federation
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Taymyr Dolgan-Nenets Russian Federation
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Taymyr Peninsula (1)
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Minusinsk Basin (1)
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Russian Arctic
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Siberian Platform
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Tunguska Syneclise (1)
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Yakutia Russian Federation
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Ukraine
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Europe
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Romania
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Vrancea seismic zone (1)
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Ukraine
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Western Europe
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France
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Highland region Scotland
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Wales
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Grand Canyon (1)
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Indian Ocean
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Arabian Sea
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Gulf of Aden (6)
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Bay of Bengal
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Andaman Basin (1)
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Carlsberg Ridge (1)
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Cuvier abyssal plain (1)
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Dampier Sub-basin (1)
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Exmouth Plateau (1)
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Mid-Indian Ridge (1)
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Red Sea
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Gulf of Suez (4)
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Red Sea Rift (2)
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Indian Ocean Islands
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Mascarene Islands
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Reunion (1)
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Seychelles (2)
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Kerguelen Plateau (1)
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Malay Archipelago
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Borneo
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Mediterranean region (1)
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Mexico
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Sierra Madre Occidental (3)
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Sinaloa Mexico (1)
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Sonora Mexico (2)
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Murray Basin (1)
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North America
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Appalachians
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Blue Ridge Mountains (1)
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Blue Ridge Province (1)
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Central Appalachians (2)
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Piedmont (1)
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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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Grenville Province
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Great Lakes
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Pacific Ocean
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Equatorial Pacific (1)
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North Pacific
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Gulf of California (4)
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Northwest Pacific (1)
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West Pacific
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Ontong Java Plateau (2)
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Pacific region (1)
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polar regions (1)
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Brazil
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Taranaki Basin (1)
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Michigan
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commodities
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metal ores
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tin ores (1)
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titanium ores (1)
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vanadium ores (1)
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mineral deposits, genesis (10)
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mineral exploration (4)
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nonmetal deposits (2)
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oil and gas fields (1)
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ornamental materials (1)
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petroleum
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placers
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potash (1)
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pumice deposits (1)
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water resources (1)
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elements, isotopes
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carbon
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C-13/C-12 (9)
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C-14 (2)
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halogens
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chlorine
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chloride ion (2)
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incompatible elements (1)
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isotope ratios (53)
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isotopes
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radioactive isotopes
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Al-26 (1)
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Ar-40/Ar-39 (1)
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Be-10 (1)
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C-14 (2)
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Pb-206/Pb-204 (7)
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Pb-207/Pb-204 (5)
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Pb-208/Pb-204 (7)
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Rb-87/Sr-86 (2)
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Re-187/Os-188 (1)
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Sm-147/Nd-144 (1)
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Zn-65 (1)
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stable isotopes
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Ar-40/Ar-39 (1)
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C-13 (1)
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C-13/C-12 (9)
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Fe-56/Fe-54 (1)
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He-4/He-3 (3)
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Hf-177/Hf-176 (10)
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Li-7/Li-6 (1)
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Nd-144/Nd-143 (23)
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O-18/O-16 (15)
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Os-188/Os-187 (2)
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Pb-206/Pb-204 (7)
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Pb-207/Pb-204 (5)
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Pb-208/Pb-204 (7)
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Rb-87/Sr-86 (2)
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Re-187/Os-188 (1)
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S-34/S-32 (1)
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Sm-147/Nd-144 (1)
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Sr-87/Sr-86 (27)
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Lu/Hf (4)
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metals
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alkali metals
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cesium (1)
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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
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Rb-87/Sr-86 (2)
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alkaline earth metals
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beryllium
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Be-10 (1)
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magnesium (1)
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strontium
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Rb-87/Sr-86 (2)
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Sr-87/Sr-86 (27)
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aluminum
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Al-26 (1)
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antimony (1)
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arsenic (1)
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gold (1)
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hafnium
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Hf-177/Hf-176 (10)
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iron
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Fe-56/Fe-54 (1)
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ferric iron (2)
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ferrous iron (2)
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lead
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Pb-206/Pb-204 (7)
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Pb-207/Pb-204 (5)
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Pb-208/Pb-204 (7)
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mercury (1)
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nickel (1)
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platinum group
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osmium
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Os-188/Os-187 (2)
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Re-187/Os-188 (1)
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platinum ores (1)
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rare earths
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cerium (1)
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europium (1)
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neodymium
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Nd-144/Nd-143 (23)
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Sm-147/Nd-144 (1)
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samarium
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Sm-147/Nd-144 (1)
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rhenium
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Re-187/Os-188 (1)
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silver (1)
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tantalum (1)
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titanium (1)
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zinc
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Zn-65 (1)
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zirconium (1)
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nitrogen (1)
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noble gases
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argon
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Ar-40/Ar-39 (1)
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helium
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He-4/He-3 (3)
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krypton (1)
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neon (2)
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xenon (2)
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oxygen
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O-18/O-16 (15)
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silicon (1)
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sulfur
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S-34/S-32 (1)
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fossils
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Chordata
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Vertebrata
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Pisces (2)
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Tetrapoda
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Mammalia
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Theria
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Eutheria
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Perissodactyla
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Hippomorpha
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Equidae
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Equus (1)
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Hipparion (1)
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Primates
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Hominidae
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Homo
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Homo sapiens (1)
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Reptilia
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Diapsida
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Archosauria
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dinosaurs
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Saurischia
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Theropoda
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Coelurosauria
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Dromaeosauridae (1)
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ichnofossils (1)
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Invertebrata
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Arthropoda
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Crustacea
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Insecta
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Exopterygota
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Isoptera (1)
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Brachiopoda (1)
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Echinodermata
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Echinozoa
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Mollusca
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Bivalvia
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Cephalopoda
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Protista
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Foraminifera (5)
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microfossils (13)
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palynomorphs
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pollen (6)
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Plantae
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algae
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Chlorophyta
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Botryococcus (2)
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Rhodophyta
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Spermatophyta
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Angiospermae (1)
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Gymnospermae
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Coniferales (1)
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geochronology methods
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(U-Th)/He (3)
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Ar/Ar (29)
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fission-track dating (3)
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geologic age
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Cenozoic
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Koobi Fora Formation (5)
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Quaternary
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Mesolithic (2)
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Shungura Formation (5)
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Tertiary
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Esna Shale (2)
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Neogene
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Miocene
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Columbia River Basalt Group (4)
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middle Miocene (5)
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Ngorora Formation (1)
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upper Miocene
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Messinian (1)
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Pliocene
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lower Pliocene (4)
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upper Pliocene (2)
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Paleogene
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Eocene
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Green River Formation (1)
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lower Eocene
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Thebes Formation (1)
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upper Eocene (2)
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Oligocene
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upper Oligocene
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Chattian (1)
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Paleocene
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Clayton Formation (1)
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lower Paleocene
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Danian (1)
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K-T boundary (2)
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Porters Creek Formation (1)
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upper Tertiary (1)
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upper Cenozoic (2)
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Dalradian (1)
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Mesozoic
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Cretaceous
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Lower Cretaceous
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Valanginian (1)
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Upper Cretaceous
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K-T boundary (2)
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Maestrichtian
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upper Maestrichtian (1)
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Jurassic
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Lower Jurassic
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Toarcian (1)
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Middle Jurassic
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Upper Jurassic (3)
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Triassic
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Lower Triassic
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Permian-Triassic boundary (2)
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Middle Triassic (2)
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Upper Triassic (2)
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upper Mesozoic (1)
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Paleozoic
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Cambrian
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Upper Cambrian (1)
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Devonian
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lower Paleozoic (1)
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Ordovician
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Permian
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Upper Permian
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Permian-Triassic boundary (2)
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Silurian
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upper Paleozoic (4)
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Phanerozoic (4)
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Precambrian
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Nonesuch Shale (1)
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upper Precambrian
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Proterozoic
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Keweenawan
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Copper Harbor Conglomerate (2)
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Mesoproterozoic (3)
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Neoproterozoic
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Paleoproterozoic (5)
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Rhenohercynian (1)
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igneous rocks
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carbonatites (3)
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plutonic rocks
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gabbros (8)
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A-type granites (2)
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ijolite (1)
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nepheline syenite
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agpaite (2)
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quartz syenite (1)
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ultramafics
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pyroxenite
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clinopyroxenite (1)
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volcanic rocks
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andesites (2)
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basalts
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glasses
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phonolites (3)
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pyroclastics
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ignimbrite (10)
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tuff (7)
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rhyodacites (1)
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ophiolite (4)
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volcanic ash (2)
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schists
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ophiolite (4)
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minerals
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carbonates
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halides
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organic minerals
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amber (2)
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oxides
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iron oxides (2)
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spinel (2)
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titanium oxides (2)
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phosphates
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monazite (4)
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silicates
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amphibole group
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pargasite (3)
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pyroxene group
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clinopyroxene
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hedenbergite (1)
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orthopyroxene (4)
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framework silicates
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feldspar group
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alkali feldspar
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plagioclase (4)
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silica minerals
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opal (2)
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quartz (1)
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orthosilicates
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nesosilicates
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britholite group
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garnet group (1)
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olivine group
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olivine (5)
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titanite group
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zircon group
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thorite (1)
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zircon (20)
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sorosilicates
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epidote group
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allanite (1)
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thortveitite group
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yttrialite (1)
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sheet silicates
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clay minerals
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kaolinite (2)
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smectite (3)
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mica group
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biotite (1)
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talc (1)
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sulfides (1)
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Primary terms
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absolute age (68)
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Africa
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Afar (13)
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Blue Nile (3)
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Central Africa
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Angola (1)
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East Africa
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Ethiopian Rift (22)
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Kenya
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Kenya Rift valley (7)
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Lake Natron (1)
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Somali Republic (2)
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Tanzania
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East African Lakes
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Lake Turkana (6)
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East African Rift (38)
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Gregory Rift (3)
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North Africa
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Atlas Mountains
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Egypt
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Libya
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Morocco
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Moroccan Atlas Mountains
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Anti-Atlas (2)
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Nubia (1)
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Nubian Shield (6)
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Red Sea Hills (2)
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Sahara (1)
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Southern Africa
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Botswana (2)
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Kaapvaal Craton (2)
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Kalahari Craton (1)
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Karoo Basin (3)
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Lesotho (2)
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South Africa
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Bushveld Complex (1)
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Cape fold belt (1)
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Eastern Cape Province South Africa (1)
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Northern Cape Province South Africa
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Kimberley South Africa (1)
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West Africa
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Adamawa (1)
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Benue Valley (1)
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Antarctica
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Marie Byrd Land (1)
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Arctic Ocean
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Arctic region
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Asia
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Saudi Arabia
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Yemen (6)
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Baikal rift zone (2)
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Central Asia
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Euphrates River (1)
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Far East
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Borneo
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China
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Kunlun Mountains (1)
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Indonesia
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Mongolia (1)
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Indus-Yarlung Zangbo suture zone (2)
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Krasnoyarsk Russian Federation
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Middle East
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Australasia
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carbon
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Caribbean region
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Cuba (1)
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catalogs (2)
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Cenozoic
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Koobi Fora Formation (5)
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Quaternary
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Holocene
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Mesolithic (2)
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upper Holocene (1)
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Matuyama Chron (1)
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middle Pleistocene (1)
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upper Pleistocene (4)
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upper Quaternary (2)
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Shungura Formation (5)
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Stone Age
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Paleolithic
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Acheulian (1)
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Tertiary
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Esna Shale (2)
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lower Tertiary (3)
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Neogene
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Miocene
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Columbia River Basalt Group (4)
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lower Miocene
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Aquitanian (1)
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middle Miocene (5)
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Ngorora Formation (1)
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upper Miocene
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Messinian (1)
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Pliocene
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lower Pliocene (4)
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upper Pliocene (2)
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Paleogene
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Eocene
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Green River Formation (1)
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lower Eocene
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Thebes Formation (1)
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upper Eocene (2)
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Oligocene
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upper Oligocene
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Chattian (1)
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Paleocene
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Clayton Formation (1)
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lower Paleocene
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Danian (1)
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K-T boundary (2)
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Porters Creek Formation (1)
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upper Tertiary (1)
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upper Cenozoic (2)
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Central America
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chemical analysis (2)
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Primates
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Reptilia
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dinosaurs
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climate change (10)
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continental drift (6)
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core (5)
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Deep Sea Drilling Project
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Leg 24
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DSDP Site 231 (1)
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deformation (22)
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Earth (2)
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