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all geography including DSDP/ODP Sites and Legs
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Africa
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Angola (1)
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Wind River (3)
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Wind River basin (18)
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Zealandia (1)
-
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commodities
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brines (22)
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diamond deposits (3)
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gems (6)
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chromite ores (22)
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IOCG deposits (2)
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lead ores (30)
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lead-zinc deposits (19)
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silver ores (44)
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zinc ores (40)
-
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mineral deposits, genesis (190)
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mineral exploration (91)
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oil and gas fields (91)
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natural gas
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coalbed methane (9)
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shale oil (5)
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phosphate deposits (2)
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placers
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potash (2)
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ruby (2)
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tight sands (3)
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water resources (2)
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-
elements, isotopes
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boron
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B-11/B-10 (4)
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carbon
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C-13 (2)
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C-13/C-12 (111)
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C-14 (22)
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organic carbon (24)
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chemical elements (2)
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chemical ratios (16)
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Cl-36 (1)
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hydrogen
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D/H (32)
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isotope ratios (299)
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isotopes
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radioactive isotopes
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Al-26 (2)
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Ar-40/Ar-39 (3)
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Be-10/Be-9 (1)
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C-14 (22)
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Cl-36 (1)
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Pb-206/Pb-204 (25)
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Pb-207/Pb-204 (21)
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Pb-208/Pb-204 (17)
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Pb-210 (2)
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Re-187/Os-188 (6)
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Sm-147/Nd-144 (7)
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tritium (2)
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U-238/U-234 (1)
-
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stable isotopes
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Ar-40/Ar-36 (1)
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Ar-40/Ar-39 (3)
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B-11/B-10 (4)
-
Be-10/Be-9 (1)
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C-13 (2)
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C-13/C-12 (111)
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Ca-44/Ca-40 (3)
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D/H (32)
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deuterium (8)
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He-4/He-3 (3)
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Hf-177/Hf-176 (29)
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Li-7/Li-6 (1)
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N-15/N-14 (2)
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Nd-144/Nd-143 (45)
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Ne-22/Ne-21 (1)
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O-18/O-16 (139)
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Os-188/Os-187 (12)
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Pb-206/Pb-204 (25)
-
Pb-207/Pb-204 (21)
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Pb-207/Pb-206 (9)
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Pb-208/Pb-204 (17)
-
Pb-208/Pb-206 (1)
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Rb-87/Sr-86 (1)
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Re-187/Os-188 (6)
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S-33/S-32 (2)
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S-34/S-32 (48)
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Si-30/Si-28 (1)
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Sm-147/Nd-144 (7)
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Sr-87/Sr-86 (71)
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U-238/Pb-206 (1)
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-
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large-ion lithophile elements (2)
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Lu/Hf (15)
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metals
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actinides
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uranium
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-
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alkali metals
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lithium
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Li-7/Li-6 (1)
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potassium (7)
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rubidium
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Rb-87/Sr-86 (1)
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sodium (5)
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alkaline earth metals
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barium (7)
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beryllium
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Be-10 (11)
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Be-10/Be-9 (1)
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calcium
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Ca-44/Ca-40 (3)
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Mg/Ca (1)
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Sr/Ca (2)
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magnesium
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Mg/Ca (1)
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strontium
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Rb-87/Sr-86 (1)
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Sr/Ca (2)
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Sr-87/Sr-86 (71)
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-
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aluminum
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Al-26 (2)
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gold (12)
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hafnium
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Hf-177/Hf-176 (29)
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indium (1)
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iron
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ferric iron (3)
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ferrous iron (3)
-
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lead
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Pb-206/Pb-204 (25)
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Pb-207/Pb-204 (21)
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Pb-207/Pb-206 (9)
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Pb-208/Pb-204 (17)
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Pb-208/Pb-206 (1)
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Pb-210 (2)
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U-238/Pb-206 (1)
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manganese (2)
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niobium (4)
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platinum group
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iridium (4)
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osmium
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Os-188/Os-187 (12)
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Re-187/Os-188 (6)
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-
palladium (15)
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platinum ores (73)
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precious metals (13)
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rare earths
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cerium (2)
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lanthanum (4)
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lutetium (3)
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neodymium
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Nd-144/Nd-143 (45)
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Sm-147/Nd-144 (7)
-
-
samarium
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Sm-147/Nd-144 (7)
-
-
scandium (1)
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ytterbium (4)
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yttrium (7)
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rhenium
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Re-187/Os-188 (6)
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silver (7)
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tantalum (1)
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tin (1)
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vanadium (2)
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zinc (6)
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zirconium (7)
-
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nitrogen
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N-15/N-14 (2)
-
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noble gases
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argon
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Ar-40/Ar-36 (1)
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Ar-40/Ar-39 (3)
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-
helium
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He-4/He-3 (3)
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neon
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Ne-22/Ne-21 (1)
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radon (2)
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oxygen
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O-18/O-16 (139)
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phosphorus (2)
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selenium (4)
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silicon
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Si-30/Si-28 (1)
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sulfur
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S-33/S-32 (2)
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S-34/S-32 (48)
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tellurium (6)
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trace metals (7)
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fossils
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Archaea (2)
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borings (7)
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Chordata
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Sarcopterygii
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Tetrapoda
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Lissamphibia
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Anura (3)
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Caudata
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Aves
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Strigiformes (1)
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Mammalia
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Multituberculata (5)
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Artiodactyla
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Ruminantia
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Bison
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Bison occidentalis (1)
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Cervidae
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Cervus
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Tylopoda
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Carnivora
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Pinnipedia (1)
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Chiroptera (1)
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Insectivora
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Dermoptera (2)
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Lagomorpha
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Perissodactyla
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Equidae
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Equus (2)
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Primates
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Hominidae (1)
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Proboscidea
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Rodentia
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Microtus (2)
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Tillodontia (1)
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Metatheria
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Reptilia
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Ornithopoda
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Saurischia
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Theropoda
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Coelurosauria
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Tyrannosauridae
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Tyrannosaurus (1)
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Pterosauria (2)
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Ichthyosauria (3)
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Lepidosauria
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Squamata
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Sauropterygia
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Plesiosauria (5)
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-
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Synapsida
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Therapsida
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Cynodontia (2)
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Dicynodontia
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Lystrosaurus (1)
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Testudinata (1)
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Cloudina (1)
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coprolites (14)
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Invertebrata
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Ostracoda
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Insecta
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Exopterygota
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Brachiopoda
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Articulata
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Strophomenida (1)
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Inarticulata
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Hydrozoa (2)
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Echinodermata
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Mollusca
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Palaeoheterodonta
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Pterioida
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Cephalopoda
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Ammonoidea
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Coleoidea (1)
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Gastropoda
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Porifera
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Demospongea (4)
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Hexactinellida (1)
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Stromatoporoidea (6)
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Protista
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Foraminifera
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Miliolina
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Alveolina (1)
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-
-
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Rotaliina
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Lenticulina (1)
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-
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Rotaliacea
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Textulariina
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Radiolaria (8)
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Vermes
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Metazoa (3)
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problematic microfossils (4)
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palynomorphs
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megaspores (1)
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Plantae
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diatoms (5)
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Musci (1)
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problematic fossils
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problematic microfossils (4)
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prokaryotes (1)
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thallophytes (4)
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tracks (9)
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geologic age
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Wisconsinan
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upper Wisconsinan (5)
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-
upper Quaternary
-
Brunhes Chron (2)
-
Pinedale Glaciation (2)
-
-
-
Sierra Ladrones Formation (1)
-
Siwalik System (2)
-
Stone Age
-
Neolithic (1)
-
Paleolithic (1)
-
-
Tertiary
-
Arikaree Group (1)
-
Arikareean (2)
-
Asmari Formation (2)
-
Catahoula Formation (2)
-
Challis Volcanics (11)
-
Cypress Hills Formation (2)
-
Florissant Lake Beds (1)
-
John Day Formation (3)
-
lower Tertiary (6)
-
middle Tertiary (2)
-
Neogene
-
Bidahochi Formation (1)
-
Capistrano Formation (1)
-
Furnace Creek Formation (1)
-
Hemphillian (2)
-
Miocene
-
Aragonian (1)
-
Barstovian (2)
-
Barstow Formation (1)
-
Clarendonian (1)
-
Columbia River Basalt Group (15)
-
Ellensburg Formation (1)
-
Fleming Formation (1)
-
Grande Ronde Basalt (3)
-
lower Miocene
-
Aquitanian (2)
-
Hemingfordian (1)
-
Kasauli Series (1)
-
Saucesian (1)
-
-
middle Miocene
-
Langhian (1)
-
Serravallian (2)
-
-
Pebas Formation (1)
-
Saddle Mountains Basalt (1)
-
upper Miocene
-
Puente Formation (1)
-
Tortonian (2)
-
Turolian (1)
-
-
Vallesian (1)
-
Wood Mountain Formation (1)
-
Yakima Basalt (1)
-
-
Ogallala Formation (3)
-
Pliocene
-
Gauss Chron (1)
-
lower Pliocene (6)
-
upper Pliocene (1)
-
-
Purisima Formation (1)
-
Ringold Formation (2)
-
-
Paleogene
-
Calvert Bluff Formation (1)
-
Chadron Formation (3)
-
Claron Formation (1)
-
Dongying Formation (2)
-
Eocene
-
Absaroka Supergroup (7)
-
Bracklesham Group (1)
-
Bridger Formation (1)
-
Bridgerian (2)
-
Chuckanut Formation (2)
-
Clarno Formation (1)
-
Colton Formation (1)
-
Crescent Formation (1)
-
Flournoy Formation (1)
-
Green River Formation (6)
-
Lake Gosiute (2)
-
Lake Uinta (1)
-
lower Eocene
-
Sparnacian (1)
-
Wasatchian (3)
-
Willwood Formation (17)
-
Wind River Formation (2)
-
Ypresian
-
London Clay (1)
-
-
-
middle Eocene
-
Bartonian (2)
-
Claiborne Group (1)
-
Laney Shale Member (1)
-
Lutetian (2)
-
Tyee Formation (3)
-
-
Mirador Formation (1)
-
Narizian (1)
-
Ootsa Lake Group (1)
-
Subathu Formation (1)
-
Uintan (2)
-
Umpqua Formation (3)
-
upper Eocene
-
Chadronian (3)
-
Priabonian (3)
-
Tepee Trail Formation (1)
-
-
-
Flagstaff Formation (1)
-
Hanna Formation (6)
-
lower Paleogene (8)
-
Oligocene
-
Brule Formation (3)
-
Fish Canyon Tuff (1)
-
Frio Formation (2)
-
lower Oligocene
-
Rupelian (1)
-
-
upper Oligocene
-
Chattian (1)
-
-
Vicksburg Group (1)
-
-
Paleocene
-
Lebo Member (1)
-
lower Paleocene
-
Danian (5)
-
K-T boundary (21)
-
Puercan (4)
-
Torrejonian (7)
-
-
Ludlow Member (1)
-
middle Paleocene (3)
-
Nacimiento Formation (7)
-
Ravenscrag Formation (3)
-
Tongue River Member (4)
-
Tullock Member (3)
-
upper Paleocene
-
Clarkforkian (1)
-
Thanetian (2)
-
Tiffanian (8)
-
-
-
Paleocene-Eocene Thermal Maximum (10)
-
Refugian (1)
-
Renova Formation (8)
-
upper Paleogene (2)
-
Wasatch Formation (7)
-
White River Group (7)
-
Wilcox Group (7)
-
Williamsburg Formation (1)
-
-
Sarmiento Formation (1)
-
Shahejie Formation (3)
-
-
upper Cenozoic (8)
-
-
Coal Measures (1)
-
Dalradian (2)
-
Lake Bonneville (2)
-
Laurentide ice sheet (12)
-
Mesozoic
-
Cretaceous
-
Bahariya Formation (1)
-
Blairmore Group (6)
-
Colorado Group (15)
-
Comanchean
-
Edwards Formation (1)
-
-
Dakota Formation (9)
-
Graneros Shale (1)
-
Lower Cretaceous
-
Agrio Formation (1)
-
Albian
-
lower Albian (3)
-
upper Albian (7)
-
-
Aptian
-
Shuaiba Formation (1)
-
-
Barremian (1)
-
Bear River Formation (3)
-
Berriasian (2)
-
Blackleaf Formation (3)
-
Bluesky Formation (2)
-
Burro Canyon Formation (4)
-
Cadomin Formation (6)
-
Cedar Mountain Formation (4)
-
Clearwater Formation (4)
-
Cloverly Formation (5)
-
Edwards Formation (1)
-
Gething Formation (5)
-
Hauterivian (1)
-
Inyan Kara Group (1)
-
Lakota Formation (2)
-
Mannville Group (26)
-
McMurray Formation (7)
-
Mowry Shale (16)
-
Muddy Sandstone (5)
-
Skull Creek Shale (1)
-
Spirit River Formation (1)
-
Valanginian (1)
-
-
Mancos Shale (9)
-
Middle Cretaceous (19)
-
Nenjiang Formation (1)
-
Qingshankou Formation (1)
-
Queen Charlotte Group (1)
-
Upper Cretaceous
-
Almond Formation (1)
-
Bagh Beds (1)
-
Bearpaw Formation (6)
-
Belle Fourche Shale (7)
-
Belly River Formation (11)
-
Blackhawk Formation (3)
-
Bridge Creek Limestone Member (1)
-
Campanian
-
Cerro del Pueblo Formation (1)
-
Dinosaur Park Formation (15)
-
lower Campanian (5)
-
upper Campanian (13)
-
-
Cardium Formation (13)
-
Carlile Shale (7)
-
Castlegate Sandstone (1)
-
Cenomanian
-
Dunvegan Formation (12)
-
lower Cenomanian (1)
-
upper Cenomanian (2)
-
-
Codell Sandstone Member (2)
-
Cody Shale (3)
-
Coniacian (12)
-
Eagle Sandstone (5)
-
Elkhorn Mountains Volcanics (4)
-
Ferron Sandstone Member (3)
-
Fort Hays Limestone Member (3)
-
Fox Hills Formation (7)
-
Frontier Formation (12)
-
Fruitland Formation (5)
-
Greenhorn Limestone (7)
-
Gulfian
-
Aguja Formation (4)
-
Austin Group (1)
-
Eagle Ford Formation (6)
-
Olmos Formation (1)
-
Woodbine Formation (3)
-
-
Harebell Formation (1)
-
Hell Creek Formation (17)
-
Hornbrook Formation (1)
-
Horseshoe Canyon Formation (9)
-
Javelina Formation (2)
-
Judith River Formation (16)
-
Kaiparowits Formation (4)
-
Kirtland Shale (3)
-
K-T boundary (21)
-
Lameta Formation (1)
-
Lance Formation (6)
-
Lewis Shale (5)
-
Maestrichtian
-
lower Maestrichtian (5)
-
upper Maestrichtian (6)
-
-
Maevarano Formation (2)
-
Marilia Formation (1)
-
Marshalltown Formation (1)
-
Mesaverde Group (6)
-
Milk River Formation (10)
-
Montana Group (4)
-
Mooreville Chalk (1)
-
Moreno Formation (2)
-
Niobrara Formation (13)
-
Ojo Alamo Sandstone (4)
-
Oldman Formation (7)
-
Pierre Shale (15)
-
Point Lookout Sandstone (1)
-
Prince Creek Formation (3)
-
Rock Springs Formation (2)
-
Saint Mary River Formation (2)
-
Santonian (12)
-
Senonian (60)
-
Shannon Sandstone Member (3)
-
Straight Cliffs Formation (5)
-
Tuolumne Intrusive Suite (1)
-
Turonian
-
lower Turonian (3)
-
middle Turonian (3)
-
upper Turonian (1)
-
-
Tuscaloosa Formation (1)
-
Two Medicine Formation (27)
-
Wahweap Formation (3)
-
Williams Fork Formation (4)
-
-
Viking Formation (9)
-
Whitemud Formation (3)
-
Yezo Group (1)
-
-
Franciscan Complex (1)
-
Glen Canyon Group (1)
-
Great Valley Sequence (6)
-
Jurassic
-
Arapien Shale (1)
-
Bazhenov Formation (1)
-
Bonanza Group (1)
-
Carmel Formation (2)
-
Coast Range Ophiolite (1)
-
Fernie Formation (6)
-
Kingak Shale (1)
-
Ladner Group (1)
-
Lower Jurassic
-
Hettangian (1)
-
Laberge Group (2)
-
lower Liassic (1)
-
middle Liassic (1)
-
Nordegg Member (3)
-
Pliensbachian (4)
-
Sinemurian (1)
-
Toarcian (5)
-
-
Middle Jurassic
-
Aalenian (2)
-
Bajocian
-
Brent Group (1)
-
-
Bathonian (2)
-
Callovian (3)
-
Summerville Formation (2)
-
Todilto Formation (1)
-
Xishanyao Formation (1)
-
-
San Rafael Group (1)
-
Smartville Complex (1)
-
Twin Creek Limestone (1)
-
Upper Jurassic
-
Bowser Lake Group (1)
-
Brushy Basin Member (3)
-
Entrada Sandstone (4)
-
Fulmar Formation (1)
-
Galice Formation (1)
-
Haynesville Formation (1)
-
Josephine Ophiolite (1)
-
Kimmeridgian
-
upper Kimmeridgian (1)
-
-
Morrison Formation (18)
-
Oxfordian (5)
-
Salt Wash Sandstone Member (2)
-
Smackover Formation (3)
-
Stump Formation (1)
-
Sundance Formation (11)
-
Swift Formation (4)
-
Tithonian (2)
-
-
-
Kayenta Formation (1)
-
lower Mesozoic (5)
-
McHugh Complex (1)
-
Mist Mountain Formation (1)
-
Navajo Sandstone (2)
-
Nugget Sandstone (2)
-
Orocopia Schist (1)
-
Triassic
-
Chanares Formation (2)
-
Charlie Lake Formation (1)
-
Liard Formation (1)
-
Lower Triassic
-
Dinwoody Formation (5)
-
Olenekian (1)
-
Permian-Triassic boundary (13)
-
Scythian (1)
-
Smithian (2)
-
Spathian (1)
-
Thaynes Formation (2)
-
-
Middle Triassic
-
Doig Formation (4)
-
Ladinian (1)
-
-
Moenkopi Formation (3)
-
Mole Granite (1)
-
Montney Formation (5)
-
Red Peak Formation (1)
-
Shublik Formation (1)
-
Upper Triassic
-
Baldonnel Formation (1)
-
Carnian
-
Ischigualasto Formation (1)
-
-
Chinle Formation (9)
-
Dockum Group (1)
-
Karmutsen Group (1)
-
Lockatong Formation (1)
-
Luning Formation (1)
-
Norian (12)
-
Pardonet Formation (1)
-
Rhaetian (1)
-
Shinarump Member (1)
-
Stuhini Group (1)
-
Xujiahe Formation (1)
-
Yanchang Formation (1)
-
-
-
upper Mesozoic (1)
-
Vaca Muerta Formation (1)
-
Wingate Sandstone (1)
-
Yanshanian (1)
-
-
MIS 2 (1)
-
MIS 3 (1)
-
MIS 5 (1)
-
MIS 6 (1)
-
MIS 7 (1)
-
Paleozoic
-
Acatlan Complex (1)
-
Cambrian
-
Acadian (1)
-
Bonanza King Formation (1)
-
Brigham Group (2)
-
Conasauga Group (1)
-
Lancara Formation (2)
-
Lower Cambrian
-
Gog Group (1)
-
Terreneuvian
-
Fortunian (1)
-
-
-
Middle Cambrian
-
Burgess Shale (1)
-
Flathead Sandstone (3)
-
-
Pioche Shale (2)
-
Upper Cambrian
-
Dresbachian (1)
-
Franconia Formation (1)
-
Furongian
-
Jiangshanian (2)
-
-
Mount Simon Sandstone (1)
-
Nopah Formation (1)
-
Orr Formation (1)
-
Pilgrim Formation (1)
-
Potsdam Sandstone (1)
-
Steptoean (4)
-
Wilberns Formation (1)
-
-
-
Carboniferous
-
Amsden Formation (4)
-
Benxi Formation (1)
-
Big Snowy Group (3)
-
Diamond Peak Formation (1)
-
Ely Limestone (1)
-
Lower Carboniferous
-
Dinantian (9)
-
-
Mississippian
-
Barnett Shale (3)
-
Charles Formation (4)
-
Lower Mississippian
-
Cuyahoga Formation (1)
-
Fort Payne Formation (1)
-
Joana Limestone (2)
-
Kinderhookian
-
Banff Formation (5)
-
-
Lake Valley Formation (2)
-
Lodgepole Formation (16)
-
Osagian
-
Burlington Limestone (1)
-
-
Tournaisian (10)
-
-
Madison Group (30)
-
Middle Mississippian
-
Visean (6)
-
-
Mission Canyon Limestone (7)
-
Redwall Limestone (2)
-
Upper Mississippian
-
Chesterian (2)
-
Hartselle Sandstone (1)
-
Heath Formation (3)
-
Meramecian
-
Warsaw Formation (1)
-
-
Pennington Formation (1)
-
Serpukhovian (4)
-
-
-
Pennsylvanian
-
Joggins Formation (1)
-
Lower Pennsylvanian
-
Bashkirian (3)
-
Morrowan (1)
-
-
Middle Pennsylvanian
-
Allegheny Group (1)
-
Atokan (1)
-
Carbondale Formation (3)
-
Desmoinesian (1)
-
Moscovian (5)
-
Paradox Formation (2)
-
Tradewater Formation (1)
-
-
Minturn Formation (5)
-
Morrow Formation (2)
-
Upper Pennsylvanian
-
Gzhelian (2)
-
Virgilian (1)
-
Wescogame Formation (1)
-
-
Watahomigi Formation (1)
-
-
Upper Carboniferous (5)
-
-
Chattanooga Shale (1)
-
Cow Head Group (5)
-
Deadwood Formation (6)
-
Devonian
-
Beaverhill Lake Group (3)
-
Heemskirk Granite (1)
-
Keg River Formation (3)
-
Lower Devonian
-
Emsian (3)
-
Lochkovian (1)
-
Manlius Formation (1)
-
Pragian (1)
-
-
Middle Devonian
-
Eifelian (3)
-
Elk Point Group (2)
-
Givetian (4)
-
Prairie Evaporite (5)
-
Winnipegosis Formation (5)
-
-
Muth Quartzite (2)
-
Old Red Sandstone (2)
-
Ponta Grossa Formation (1)
-
Popovich Formation (1)
-
Slave Point Formation (2)
-
Swan Hills Formation (3)
-
Upper Devonian
-
Birdbear Formation (1)
-
Duperow Formation (2)
-
Famennian
-
upper Famennian (1)
-
Wabamun Group (5)
-
-
Frasnian
-
Leduc Formation (1)
-
-
Grosmont Formation (3)
-
Jefferson Group (6)
-
Nisku Formation (3)
-
Ohio Shale (1)
-
Palliser Formation (3)
-
-
Waterways Formation (1)
-
-
Dunkard Group (1)
-
Exshaw Formation (13)
-
Lisburne Group (2)
-
lower Paleozoic
-
Conococheague Formation (1)
-
-
Maroon Formation (1)
-
middle Paleozoic (3)
-
Minnelusa Formation (2)
-
New Albany Shale (2)
-
Ordovician
-
Antelope Valley Limestone (1)
-
Ely Springs Dolomite (1)
-
Eureka Quartzite (2)
-
Lower Ordovician
-
Arenigian (1)
-
Fillmore Formation (2)
-
Ibexian (3)
-
Manitou Formation (1)
-
Saint George Group (1)
-
Tremadocian (3)
-
-
Middle Ordovician
-
Saint Peter Sandstone (1)
-
Table Head Group (1)
-
Whiterockian (2)
-
Winnipeg Formation (2)
-
-
Montoya Group (1)
-
Upper Ordovician
-
Ashgillian (1)
-
Bighorn Dolomite (7)
-
Cincinnatian
-
Richmondian (1)
-
-
Fernvale Formation (1)
-
Hirnantian (2)
-
Katian (3)
-
Maquoketa Formation (1)
-
Mohawkian (1)
-
Red River Formation (7)
-
Yeoman Formation (2)
-
-
Vinini Formation (1)
-
-
Permian
-
Coconino Sandstone (1)
-
Cutler Formation (2)
-
Ecca Group (1)
-
Guadalupian
-
Capitan Formation (1)
-
Capitanian (2)
-
Grayburg Formation (1)
-
Roadian (1)
-
Wordian (1)
-
-
Kaibab Formation (4)
-
Khuff Formation (1)
-
Lower Permian
-
Abo Formation (1)
-
Cisuralian
-
Kungurian (2)
-
-
Leonardian
-
Clear Fork Group (1)
-
-
Opeche Shale (1)
-
Wolfcampian (3)
-
-
Lyons Sandstone (2)
-
Meade Peak Member (3)
-
Middle Permian (3)
-
Park City Formation (6)
-
Phosphoria Formation (11)
-
Retort Phosphatic Shale Member (1)
-
Rotliegendes (1)
-
Rustler Formation (1)
-
Toroweap Formation (1)
-
Upper Permian
-
Lopingian
-
Changhsingian (1)
-
-
Permian-Triassic boundary (13)
-
Salado Formation (1)
-
Zechstein (1)
-
-
Yates Formation (1)
-
Yeso Formation (1)
-
-
Pilot Shale (1)
-
Rangeley Formation (1)
-
Sauk Sequence (4)
-
Silurian
-
Lockport Formation (1)
-
Lower Silurian
-
Grimsby Sandstone (2)
-
Llandovery (2)
-
Wenlock (2)
-
-
Middle Silurian
-
Guelph Formation (1)
-
-
Niagaran (2)
-
Upper Silurian
-
Ludlow (2)
-
Pridoli (1)
-
Salina Group (1)
-
-
-
Supai Formation (2)
-
Taiyuan Formation (1)
-
Tensleep Sandstone (7)
-
Tippecanoe Sequence (1)
-
upper Paleozoic
-
Antrim Shale (1)
-
Bakken Formation (26)
-
Copacabana Group (1)
-
Dwyka Formation (1)
-
Fountain Formation (2)
-
Kaskaskia Sequence (1)
-
Shanxi Formation (2)
-
Wood River Formation (1)
-
-
Weber Sandstone (3)
-
Wells Formation (1)
-
Woodford Shale (3)
-
-
Phanerozoic (21)
-
Precambrian
-
Animikie Group (1)
-
Anshan Group (1)
-
Archean
-
Eoarchean (2)
-
J-M Reef (1)
-
Mesoarchean (4)
-
Neoarchean (26)
-
Paleoarchean (6)
-
Taihua Group (1)
-
-
Chuar Group (2)
-
Delhi Supergroup (2)
-
Gunflint Iron Formation (3)
-
Hadean (8)
-
Hazel Formation (1)
-
Lewisian Complex (1)
-
Noonday Dolomite (1)
-
Prichard Formation (4)
-
Purcell System (16)
-
Sioux Quartzite (1)
-
Sokoman Formation (2)
-
Spuhler Peak Formation (1)
-
Stillwater Complex (9)
-
Transvaal Supergroup (2)
-
Uinta Mountain Group (1)
-
upper Precambrian
-
Proterozoic
-
Algonkian (1)
-
Bambui Group (1)
-
Banxi Group (1)
-
Damara System (2)
-
Huronian (1)
-
Keweenawan
-
Copper Harbor Conglomerate (1)
-
Portage Lake Lava Series (1)
-
-
Kunyang Group (1)
-
Lewisian (1)
-
McNamara Group (1)
-
Mesoproterozoic
-
Aldridge Formation (2)
-
Altyn Limestone (1)
-
Belt Supergroup (57)
-
Bonner Formation (2)
-
Calymmian (1)
-
Helena Formation (2)
-
Helikian (4)
-
Laxfordian (1)
-
Missoula Group (4)
-
Newland Limestone (3)
-
Ravalli Group (5)
-
Revett Quartzite (6)
-
Roper Group (2)
-
Shuangqiaoshan Group (1)
-
Wallace Formation (3)
-
-
Miette Group (2)
-
Neoproterozoic
-
Brioverian (1)
-
Cryogenian (1)
-
Dengying Formation (1)
-
Doushantuo Formation (4)
-
Ediacaran (20)
-
Horsethief Creek Group (1)
-
Riphean (1)
-
Sturtian (2)
-
Tonian (5)
-
Torridonian (2)
-
Vendian (7)
-
-
Oronto Group (1)
-
Paleoproterozoic
-
Aphebian
-
Hurwitz Group (1)
-
-
Rooiberg Group (1)
-
Rustenburg Layered Suite (5)
-
Statherian (1)
-
Urquhart Shale (1)
-
-
Pocatello Formation (1)
-
Pretoria Group (1)
-
Sinian
-
Dengying Formation (1)
-
Doushantuo Formation (4)
-
-
Windermere System (5)
-
-
-
Vadito Group (1)
-
Waterberg System (1)
-
Witwatersrand Supergroup (1)
-
-
Rhenohercynian (1)
-
Vindhyan (2)
-
-
igneous rocks
-
agglutinates (1)
-
igneous rocks
-
carbonatites (12)
-
feldspathoid rocks (4)
-
granophyre (3)
-
hypabyssal rocks (1)
-
kamafugite (1)
-
kimberlite (9)
-
peperite (1)
-
picrite (1)
-
plutonic rocks
-
anorthosite (7)
-
diabase
-
tholeiitic dolerite (1)
-
-
diorites
-
quartz diorites (3)
-
tonalite (5)
-
trondhjemite (2)
-
-
gabbros
-
alkali gabbros (2)
-
labradoritite (1)
-
norite (10)
-
troctolite (5)
-
-
granites
-
alkali granites (2)
-
aplite (1)
-
A-type granites (5)
-
biotite granite (1)
-
charnockite (3)
-
granite porphyry (4)
-
I-type granites (2)
-
leucogranite (6)
-
microgranite (1)
-
monzogranite (2)
-
S-type granites (1)
-
two-mica granite (1)
-
-
granodiorites (17)
-
ijolite (1)
-
lamproite (5)
-
lamprophyres
-
minette (2)
-
-
monzodiorite (1)
-
monzonites (6)
-
pegmatite (21)
-
quartz monzonite (6)
-
syenites
-
albitite (1)
-
alkali syenites (2)
-
nepheline syenite (4)
-
quartz syenite (1)
-
-
ultramafics
-
chromitite (22)
-
hornblendite (1)
-
olivinite (1)
-
peridotites
-
dunite (7)
-
garnet lherzolite (1)
-
harzburgite (8)
-
lherzolite (3)
-
spinel lherzolite (1)
-
-
pyroxenite
-
clinopyroxenite (3)
-
orthopyroxenite (1)
-
websterite (1)
-
-
-
-
porphyry
-
vitrophyre (1)
-
-
volcanic rocks
-
adakites (4)
-
andesites
-
andesite porphyry (1)
-
boninite (1)
-
-
basalts
-
alkali basalts
-
trachybasalts (2)
-
-
flood basalts (12)
-
mid-ocean ridge basalts (5)
-
ocean-island basalts (3)
-
shoshonite (1)
-
tholeiite (1)
-
tholeiitic basalt (2)
-
-
basanite (1)
-
dacites (6)
-
glasses
-
obsidian (2)
-
volcanic glass (5)
-
-
komatiite (8)
-
latite (1)
-
phonolites (4)
-
pyroclastics
-
ash-flow tuff (6)
-
ignimbrite (10)
-
pumice (5)
-
rhyolite tuff (1)
-
scoria (2)
-
tuff (26)
-
welded tuff (1)
-
-
rhyolites (14)
-
trachyandesites (3)
-
trachytes (2)
-
vitrophyre (1)
-
-
-
ophiolite (9)
-
volcanic ash (8)
-
wehrlite (2)
-
-
metamorphic rocks
-
K-bentonite (9)
-
metabentonite (1)
-
metamorphic rocks
-
amphibolites (8)
-
cataclasites (6)
-
eclogite (4)
-
gneisses
-
biotite gneiss (1)
-
granite gneiss (4)
-
orthogneiss (9)
-
paragneiss (2)
-
tonalite gneiss (1)
-
-
granulites (8)
-
hornfels (3)
-
itabirite (1)
-
lapis lazuli (1)
-
marbles (7)
-
metacarbonate rocks (2)
-
metaigneous rocks
-
metabasalt (3)
-
metabasite (4)
-
metadiabase (1)
-
metagabbro (1)
-
metagranite (2)
-
metatuff (1)
-
serpentinite (1)
-
-
metaplutonic rocks (2)
-
metasedimentary rocks
-
khondalite (1)
-
metaconglomerate (1)
-
metagraywacke (2)
-
metapelite (11)
-
metasandstone (1)
-
paragneiss (2)
-
-
metasomatic rocks
-
fenite (1)
-
greisen (5)
-
serpentinite (1)
-
skarn (18)
-
-
metavolcanic rocks (5)
-
migmatites
-
anatexite (1)
-
-
mylonites
-
pseudotachylite (1)
-
ultramylonite (1)
-
-
phyllites (1)
-
quartzites (24)
-
schists
-
blueschist (1)
-
greenschist (3)
-
greenstone (2)
-
-
-
ophiolite (9)
-
turbidite (8)
-
-
meteorites
-
meteorites
-
stony meteorites
-
achondrites (1)
-
chondrites
-
carbonaceous chondrites (1)
-
-
-
-
-
minerals
-
alloys
-
hedleyite (1)
-
-
arsenates
-
scorodite (1)
-
-
arsenides
-
arsenopyrite (2)
-
cobaltite (1)
-
gersdorffite (1)
-
sperrylite (7)
-
-
arsenites (2)
-
bismuthides
-
froodite (1)
-
michenerite (2)
-
-
borates (1)
-
carbonates
-
ankerite (3)
-
aragonite (3)
-
bastnaesite (1)
-
calcite (46)
-
dolomite (24)
-
kutnohorite (1)
-
magnesian calcite (3)
-
malachite (1)
-
parisite (1)
-
rhodochrosite (1)
-
shortite (1)
-
siderite (1)
-
strontianite (1)
-
-
halides
-
bromides (1)
-
chlorides
-
halite (4)
-
-
fluorides
-
bastnaesite (1)
-
clinohumite (1)
-
fluorite (4)
-
parisite (1)
-
-
-
hydrates (1)
-
K-bentonite (9)
-
metabentonite (1)
-
minerals (6)
-
native elements
-
diamond (1)
-
graphite (7)
-
-
organic minerals
-
amber (1)
-
-
oxides
-
aluminum oxides (2)
-
anatase (1)
-
baddeleyite (4)
-
brookite (1)
-
brucite (1)
-
cassiterite (4)
-
chrome spinel (7)
-
chromite (12)
-
coronadite (1)
-
corundum (3)
-
cryptomelane (2)
-
gibbsite (1)
-
goethite (3)
-
hausmannite (1)
-
hematite (4)
-
hercynite (2)
-
hollandite (3)
-
hydroxides
-
oxyhydroxides (1)
-
-
ilmenite (4)
-
iron oxides (9)
-
magnesium oxides (1)
-
magnetite (20)
-
niobates
-
betafite (1)
-
columbite (1)
-
loparite (1)
-
pyrochlore (1)
-
samarskite (1)
-
-
periclase (1)
-
perovskite (3)
-
pitchblende (1)
-
priderite (1)
-
rutile (6)
-
sapphire (3)
-
specularite (1)
-
spinel (11)
-
spinel group (1)
-
tantalates
-
betafite (1)
-
-
titanium oxides (2)
-
titanomagnetite (3)
-
uraninite (2)
-
wustite (1)
-
zirconolite (1)
-
-
phosphates
-
apatite (44)
-
brushite (1)
-
fluorapatite (2)
-
francolite (1)
-
hinsdalite (2)
-
hydroxylapatite (1)
-
monazite (25)
-
monetite (1)
-
rhabdophane (2)
-
turquoise (1)
-
xenotime (10)
-
-
platinum minerals (21)
-
selenides (1)
-
silicates
-
aluminosilicates (1)
-
asbestos (3)
-
chain silicates
-
amphibole group
-
clinoamphibole
-
arfvedsonite (2)
-
cummingtonite (1)
-
hastingsite (1)
-
hornblende (20)
-
kaersutite (1)
-
magnesioriebeckite (2)
-
pargasite (1)
-
richterite (3)
-
tremolite (5)
-
tschermakite (1)
-
-
-
astrophyllite (1)
-
charoite (1)
-
pyroxene group
-
clinopyroxene
-
aegirine (1)
-
chrome diopside (1)
-
diopside (7)
-
jadeite (1)
-
spodumene (1)
-
-
orthopyroxene (11)
-
-
rhodonite group
-
babingtonite (1)
-
-
wollastonite group
-
wollastonite (1)
-
-
-
framework silicates
-
feldspar group
-
alkali feldspar
-
adularia (6)
-
amazonite (1)
-
anorthoclase (1)
-
K-feldspar (4)
-
microcline (1)
-
sanidine (13)
-
-
plagioclase
-
albite (3)
-
bytownite (1)
-
labradorite (1)
-
-
-
leucite (2)
-
nepheline group
-
kalsilite (3)
-
nepheline (5)
-
-
pseudoleucite (2)
-
silica minerals
-
amethyst (1)
-
carnelian (1)
-
opal
-
opal-A (2)
-
opal-CT (1)
-
-
quartz
-
smoky quartz (1)
-
-
tridymite (1)
-
-
zeolite group
-
analcime (4)
-
clinoptilolite (1)
-
erionite (1)
-
offretite (1)
-
-
-
iron silicates (1)
-
magnesian silicates (1)
-
orthosilicates
-
nesosilicates
-
andalusite (2)
-
clinohumite (1)
-
garnet group
-
grossular (3)
-
hydrogarnet
-
hibschite (1)
-
-
-
olivine group
-
fayalite (2)
-
forsterite (2)
-
olivine (9)
-
-
sillimanite (2)
-
staurolite (4)
-
titanite group
-
titanite (12)
-
-
zircon group
-
zircon (278)
-
-
-
sorosilicates
-
bertrandite (1)
-
chevkinite group
-
perrierite (1)
-
-
epidote group
-
allanite (3)
-
epidote (7)
-
zoisite (2)
-
-
lawsonite (1)
-
melilite group
-
gehlenite (1)
-
melilite (1)
-
-
pumpellyite group
-
pumpellyite (1)
-
-
thortveitite group
-
thortveitite (1)
-
-
vesuvianite (1)
-
-
-
ring silicates
-
beryl (1)
-
cordierite (2)
-
emerald (1)
-
tourmaline group
-
schorl (1)
-
-
-
sheet silicates
-
chlorite group
-
chlorite (10)
-
clinochlore (2)
-
-
clay minerals
-
beidellite (1)
-
dickite (1)
-
halloysite (1)
-
kaolinite (18)
-
metahalloysite (1)
-
montmorillonite (2)
-
nontronite (1)
-
saponite (1)
-
smectite (28)
-
vermiculite (3)
-
-
illite (45)
-
mica group
-
annite (1)
-
biotite (31)
-
celadonite (1)
-
glauconite (3)
-
muscovite (19)
-
phengite (2)
-
phlogopite (12)
-
-
sericite (6)
-
serpentine group
-
antigorite (1)
-
berthierine (1)
-
chrysotile (1)
-
serpentine (1)
-
-
talc (2)
-
-
-
sulfates
-
alunite (6)
-
anhydrite (10)
-
barite (10)
-
celestine (1)
-
coquimbite (1)
-
gypsum (6)
-
hinsdalite (2)
-
jarosite (1)
-
voltaite (1)
-
-
sulfides
-
acanthite (1)
-
arsenopyrite (2)
-
bornite (4)
-
chalcocite (2)
-
chalcopyrite (19)
-
cobaltite (1)
-
cooperite (3)
-
copper sulfides (5)
-
cubanite (3)
-
digenite (1)
-
galena (1)
-
gersdorffite (1)
-
joseite (1)
-
laurite (4)
-
mackinawite (1)
-
marcasite (1)
-
millerite (3)
-
molybdenite (12)
-
nickel sulfides (2)
-
pentlandite (6)
-
polydymite (1)
-
pyrite (26)
-
pyrrhotite (7)
-
sphalerite (2)
-
stibnite (3)
-
tetradymite (1)
-
troilite (1)
-
violarite (1)
-
zinc sulfides (1)
-
-
sulfosalts
-
sulfantimonites
-
polybasite (1)
-
tetrahedrite (3)
-
-
sulfarsenates
-
enargite (1)
-
-
sulfarsenites
-
pearceite (1)
-
tennantite (2)
-
-
-
tellurides
-
altaite (1)
-
hedleyite (1)
-
hessite (1)
-
joseite (1)
-
tellurobismuthite (1)
-
tetradymite (1)
-
-
tungstates
-
scheelite (3)
-
wolframite (2)
-
-
ultrabasite (1)
-
wehrlite (2)
-
-
Primary terms
-
absolute age (438)
-
Africa
-
Central Africa
-
Angola (1)
-
Congo Democratic Republic
-
Shaba Congo Democratic Republic (1)
-
-
Gabon (1)
-
-
East Africa
-
Kenya
-
Mount Kenya (2)
-
-
Malawi (1)
-
Mozambique (2)
-
Tanzania (2)
-
-
East African Lakes
-
Lake Tanganyika (1)
-
-
East African Rift (1)
-
Limpopo Belt (4)
-
Madagascar
-
Mahajanga Basin (1)
-
-
North Africa
-
Algeria
-
Aures (1)
-
-
Atlas Mountains
-
Moroccan Atlas Mountains
-
Anti-Atlas (3)
-
High Atlas (2)
-
-
-
Egypt
-
Bahariya Oasis (1)
-
-
Libya (1)
-
Morocco
-
Moroccan Atlas Mountains
-
Anti-Atlas (3)
-
High Atlas (2)
-
-
Rif
-
Beni Bouchera (1)
-
-
Tafilalt (1)
-
-
Tunisia
-
El Kef Tunisia (1)
-
-
-
Sahara (2)
-
Southern Africa
-
Gariep Belt (1)
-
Kaapvaal Craton (5)
-
Karoo Basin (5)
-
Namaqualand (1)
-
Namaqualand metamorphic complex (1)
-
Namibia (7)
-
South Africa
-
Bushveld Complex (29)
-
Cape Province region (1)
-
Gauteng South Africa
-
Pretoria South Africa (1)
-
-
Limpopo South Africa (1)
-
Merensky Reef (10)
-
Transvaal region (1)
-
Western Cape Province South Africa (2)
-
-
Zimbabwe
-
Great Dyke (5)
-
-
-
West Africa
-
Mali (1)
-
Nigeria
-
Niger Delta (1)
-
-
Taoudenni Basin (2)
-
-
Zimbabwe Craton (3)
-
-
Antarctica
-
Antarctic ice sheet (2)
-
Antarctic Peninsula (2)
-
East Antarctica (1)
-
South Shetland Islands
-
Deception Island (1)
-
-
Transantarctic Mountains
-
Beardmore Glacier (1)
-
-
Victoria Land
-
McMurdo dry valleys (1)
-
-
-
Arctic Ocean
-
Barents Sea (1)
-
Beaufort Sea (1)
-
Chukchi Sea (1)
-
Norwegian Sea
-
Haltenbanken (1)
-
-
-
Arctic region
-
Greenland
-
East Greenland (2)
-
Greenland ice sheet (2)
-
Northern Greenland (2)
-
Peary Land (2)
-
Skaergaard Intrusion (2)
-
South Greenland (1)
-
-
Svalbard
-
Spitsbergen
-
Spitsbergen Island (1)
-
-
-
-
Asia
-
Altai Mountains
-
Gorny Altai (1)
-
-
Altai Russian Federation
-
Gorny Altai (1)
-
-
Amu Darya Basin (1)
-
Amur region (1)
-
Amur Russian Federation
-
Zeya-Bureya Basin (2)
-
-
Arabian Peninsula
-
Oman
-
Oman Mountains (2)
-
-
Saudi Arabia (1)
-
United Arab Emirates
-
Abu Dhabi (2)
-
-
Yemen (1)
-
-
Baikal region (3)
-
Buryat Russian Federation (1)
-
Central Asia
-
Kazakhstan
-
Chu River (1)
-
Karatau Range (3)
-
Tengiz Field (1)
-
-
Kyzylkum (1)
-
Pamirs (2)
-
-
Far East
-
Borneo
-
East Malaysia
-
Sarawak Malaysia (1)
-
-
Kalimantan Indonesia
-
Mahakam Delta (1)
-
-
-
Burma (1)
-
China
-
Altun Mountains (1)
-
Altyn Tagh Fault (2)
-
Bohaiwan Basin (4)
-
Da Hinggan Ling (2)
-
Dabie Mountains (2)
-
Fujian China (1)
-
Gansu China (4)
-
Guangdong China (1)
-
Guangxi China (1)
-
Guizhou China (6)
-
Hainan China (2)
-
Hebei China (1)
-
Heilongjiang China (2)
-
Henan China (2)
-
Hubei China
-
Jianghan Basin (1)
-
-
Hunan China (2)
-
Inner Mongolia China
-
Erlian Basin (1)
-
-
Kunlun Mountains (3)
-
Loess Plateau (1)
-
Longmenshan (1)
-
Nanling (1)
-
Nanpanjiang Basin (1)
-
Ningxia China (1)
-
North China Platform (9)
-
Ordos Basin (5)
-
Qaidam Basin (9)
-
Qilian Mountains (3)
-
Qinghai China (8)
-
Shandong China
-
Dongying Depression (1)
-
Jiyang Depression (1)
-
Shengli Field (1)
-
-
Shanxi China (1)
-
Sichuan Basin (5)
-
Sichuan China (2)
-
Songliao Basin (4)
-
South China Block (4)
-
Tancheng-Lujiang Fault (2)
-
Tarim Platform (2)
-
Xinjiang China
-
Hami Basin (1)
-
Junggar (2)
-
Junggar Basin (6)
-
Tahe Field (1)
-
Tarim Basin (15)
-
Turpan Basin (2)
-
Urumqi China (1)
-
-
Xizang China
-
Gangdese Belt (2)
-
Lhasa Block (1)
-
Lhasa China (1)
-
-
Yangtze Platform (5)
-
Yangtze River (2)
-
Yangtze Three Gorges (2)
-
Yunnan China (9)
-
Zhejiang China (1)
-
-
Indochina (1)
-
Indonesia
-
Java (1)
-
Kalimantan Indonesia
-
Mahakam Delta (1)
-
-
-
Japan
-
Hokkaido (3)
-
Honshu
-
Chiba Peninsula (1)
-
Fukushima Japan (1)
-
-
Kyushu (2)
-
Shikoku (1)
-
-
Korea
-
South Korea (1)
-
-
Malaysia
-
East Malaysia
-
Sarawak Malaysia (1)
-
-
-
Mongolia (5)
-
Philippine Islands
-
Luzon (1)
-
-
Taiwan (2)
-
Vietnam (2)
-
-
Gobi Desert (2)
-
Himalayas
-
Kumaun Himalayas (1)
-
Lesser Himalayas (5)
-
Mount Everest (3)
-
Zanskar Range (2)
-
-
Indian Peninsula
-
Afghanistan (1)
-
Bhutan (1)
-
Ganga Basin (1)
-
Ganges River basin (1)
-
India
-
Andhra Pradesh India (3)
-
Bundelkhand (1)
-
Chhattisgarh India
-
Bastar India (1)
-
-
Deccan Plateau (1)
-
Dharwar Craton (3)
-
Ghats
-
Eastern Ghats (2)
-
Western Ghats (1)
-
-
Godavari Valley (1)
-
Gujarat India (2)
-
Himachal Pradesh India
-
Spiti (2)
-
-
Karnataka India (2)
-
Kerala India (1)
-
Madhya Pradesh India
-
Chhindwara India (1)
-
Jabalpur India (1)
-
-
Maharashtra India (1)
-
Narmada Valley (1)
-
Narmada-Son Lineament (1)
-
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Bajocian
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Brent Group (1)
-
-
Bathonian (2)
-
Callovian (3)
-
Summerville Formation (2)
-
Todilto Formation (1)
-
Xishanyao Formation (1)
-
-
San Rafael Group (1)
-
Smartville Complex (1)
-
Twin Creek Limestone (1)
-
Upper Jurassic
-
Bowser Lake Group (1)
-
Brushy Basin Member (3)
-
Entrada Sandstone (4)
-
Fulmar Formation (1)
-
Galice Formation (1)
-
Haynesville Formation (1)
-
Josephine Ophiolite (1)
-
Kimmeridgian
-
upper Kimmeridgian (1)
-
-
Morrison Formation (18)
-
Oxfordian (5)
-
Salt Wash Sandstone Member (2)
-
Smackover Formation (3)
-
Stump Formation (1)
-
Sundance Formation (11)
-
Swift Formation (4)
-
Tithonian (2)
-
-
-
Kayenta Formation (1)
-
lower Mesozoic (5)
-
McHugh Complex (1)
-
Mist Mountain Formation (1)
-
Navajo Sandstone (2)
-
Nugget Sandstone (2)
-
Orocopia Schist (1)
-
Triassic
-
Chanares Formation (2)
-
Charlie Lake Formation (1)
-
Liard Formation (1)
-
Lower Triassic
-
Dinwoody Formation (5)
-
Olenekian (1)
-
Permian-Triassic boundary (13)
-
Scythian (1)
-
Smithian (2)
-
Spathian (1)
-
Thaynes Formation (2)
-
-
Middle Triassic
-
Doig Formation (4)
-
Ladinian (1)
-
-
Moenkopi Formation (3)
-
Mole Granite (1)
-
Montney Formation (5)
-
Red Peak Formation (1)
-
Shublik Formation (1)
-
Upper Triassic
-
Baldonnel Formation (1)
-
Carnian
-
Ischigualasto Formation (1)
-
-
Chinle Formation (9)
-
Dockum Group (1)
-
Karmutsen Group (1)
-
Lockatong Formation (1)
-
Luning Formation (1)
-
Norian (12)
-
Pardonet Formation (1)
-
Rhaetian (1)
-
Shinarump Member (1)
-
Stuhini Group (1)
-
Xujiahe Formation (1)
-
Yanchang Formation (1)
-
-
-
upper Mesozoic (1)
-
Vaca Muerta Formation (1)
-
Wingate Sandstone (1)
-
Yanshanian (1)
-
-
metal ores
-
aluminum ores (1)
-
antimony ores (3)
-
arsenic ores (3)
-
base metals (24)
-
beryllium ores (1)
-
bismuth ores (2)
-
chromite ores (22)
-
cobalt ores (17)
-
copper ores (146)
-
gold ores (116)
-
IOCG deposits (2)
-
iron ores (11)
-
lead ores (30)
-
lead-zinc deposits (19)
-
magnesium ores (2)
-
manganese ores (1)
-
mercury ores (3)
-
molybdenum ores (40)
-
nickel ores (45)
-
niobium ores (1)
-
palladium ores (13)
-
platinum ores (73)
-
polymetallic ores (12)
-
rare earth deposits (8)
-
rhodium ores (1)
-
silver ores (44)
-
strontium ores (1)
-
tantalum ores (1)
-
tellurium ores (3)
-
thorium ores (1)
-
tin ores (8)
-
titanium ores (1)
-
tungsten ores (12)
-
uranium ores (16)
-
vanadium ores (2)
-
zinc ores (40)
-
-
metals
-
actinides
-
protactinium (1)
-
thorium (4)
-
uranium
-
U-238/Pb-206 (1)
-
U-238/U-234 (1)
-
-
-
alkali metals
-
lithium
-
Li-7/Li-6 (1)
-
-
potassium (7)
-
rubidium
-
Rb-87/Sr-86 (1)
-
-
sodium (5)
-
-
alkaline earth metals
-
barium (7)
-
beryllium
-
Be-10 (11)
-
Be-10/Be-9 (1)
-
-
calcium
-
Ca-44/Ca-40 (3)
-
Mg/Ca (1)
-
Sr/Ca (2)
-
-
magnesium
-
Mg/Ca (1)
-
-
strontium
-
Rb-87/Sr-86 (1)
-
Sr/Ca (2)
-
Sr-87/Sr-86 (71)
-
-
-
aluminum
-
Al-26 (2)
-
-
antimony (1)
-
arsenic (4)
-
bismuth (2)
-
cadmium (1)
-
chromium (3)
-
cobalt (2)
-
copper (9)
-
germanium (2)
-
gold (12)
-
hafnium
-
Hf-177/Hf-176 (29)
-
-
indium (1)
-
iron
-
ferric iron (3)
-
ferrous iron (3)
-
-
lead
-
Pb-206/Pb-204 (25)
-
Pb-207/Pb-204 (21)
-
Pb-207/Pb-206 (9)
-
Pb-208/Pb-204 (17)
-
Pb-208/Pb-206 (1)
-
Pb-210 (2)
-
U-238/Pb-206 (1)
-
-
manganese (2)
-
mercury (1)
-
molybdenum (4)
-
nickel (5)
-
niobium (4)
-
platinum group
-
iridium (4)
-
osmium
-
Os-188/Os-187 (12)
-
Re-187/Os-188 (6)
-
-
palladium (15)
-
palladium ores (13)
-
platinum (12)
-
platinum ores (73)
-
rhodium (3)
-
rhodium ores (1)
-
ruthenium (3)
-
-
precious metals (13)
-
rare earths
-
cerium (2)
-
europium (5)
-
lanthanum (4)
-
lutetium (3)
-
neodymium
-
Nd-144/Nd-143 (45)
-
Sm-147/Nd-144 (7)
-
-
samarium
-
Sm-147/Nd-144 (7)
-
-
scandium (1)
-
ytterbium (4)
-
yttrium (7)
-
-
rhenium
-
Re-187/Os-188 (6)
-
-
silver (7)
-
tantalum (1)
-
tin (1)
-
titanium (4)
-
tungsten (2)
-
vanadium (2)
-
zinc (6)
-
zirconium (7)
-
-
metamorphic rocks
-
amphibolites (8)
-
cataclasites (6)
-
eclogite (4)
-
gneisses
-
biotite gneiss (1)
-
granite gneiss (4)
-
orthogneiss (9)
-
paragneiss (2)
-
tonalite gneiss (1)
-
-
granulites (8)
-
hornfels (3)
-
itabirite (1)
-
lapis lazuli (1)
-
marbles (7)
-
metacarbonate rocks (2)
-
metaigneous rocks
-
metabasalt (3)
-
metabasite (4)
-
metadiabase (1)
-
metagabbro (1)
-
metagranite (2)
-
metatuff (1)
-
serpentinite (1)
-
-
metaplutonic rocks (2)
-
metasedimentary rocks
-
khondalite (1)
-
metaconglomerate (1)
-
metagraywacke (2)
-
metapelite (11)
-
metasandstone (1)
-
paragneiss (2)
-
-
metasomatic rocks
-
fenite (1)
-
greisen (5)
-
serpentinite (1)
-
skarn (18)
-
-
metavolcanic rocks (5)
-
migmatites
-
anatexite (1)
-
-
mylonites
-
pseudotachylite (1)
-
ultramylonite (1)
-
-
phyllites (1)
-
quartzites (24)
-
schists
-
blueschist (1)
-
greenschist (3)
-
greenstone (2)
-
-
-
metamorphism (115)
-
metasomatism (114)
-
meteorites
-
stony meteorites
-
achondrites (1)
-
chondrites
-
carbonaceous chondrites (1)
-
-
-
-
meteorology (1)
-
Mexico
-
Baja California (2)
-
Baja California Mexico (3)
-
Chiapas Mexico (1)
-
Chihuahua Mexico (2)
-
Coahuila Mexico (2)
-
Durango Mexico (1)
-
Guerrero Mexico (1)
-
Guerrero Terrane (1)
-
La Popa Basin (3)
-
Mexico state
-
Nevado de Toluca (1)
-
-
Michoacan Mexico (1)
-
Nuevo Leon Mexico (2)
-
Oaxaca Mexico (4)
-
Queretaro Mexico (1)
-
Sabinas Basin (1)
-
San Luis Potosi Mexico (1)
-
Sierra Madre Occidental (2)
-
Sierra Madre Oriental (4)
-
Sonora Mexico
-
La Caridad Mine (2)
-
-
Trans-Mexican volcanic belt (1)
-
Veracruz Mexico (1)
-
Yucatan Mexico (1)
-
-
micropaleontology (2)
-
mineral deposits, genesis (190)
-
mineral exploration (91)
-
mineral resources (9)
-
mineralogy (6)
-
minerals (6)
-
mining geology (5)
-
Mohorovicic discontinuity (13)
-
Moon (1)
-
museums (4)
-
nitrogen
-
N-15/N-14 (2)
-
-
noble gases
-
argon
-
Ar-40/Ar-36 (1)
-
Ar-40/Ar-39 (3)
-
-
helium
-
He-4/He-3 (3)
-
-
neon
-
Ne-22/Ne-21 (1)
-
-
radon (2)
-
-
nodules (3)
-
North America
-
Appalachian Basin (7)
-
Appalachians
-
Blue Ridge Mountains (2)
-
Blue Ridge Province (1)
-
Central Appalachians (3)
-
Northern Appalachians (1)
-
Piedmont (4)
-
Southern Appalachians (9)
-
Valley and Ridge Province (3)
-
-
Basin and Range Province
-
Great Basin (22)
-
-
Belt Basin (14)
-
Canadian Shield
-
Churchill Province
-
Cape Smith fold belt (1)
-
Hearne Province (10)
-
Rae Province (1)
-
Snowbird tectonic zone (1)
-
-
Flin Flon Belt (3)
-
Grenville Province
-
Central Metasedimentary Belt (1)
-
-
Slave Province (4)
-
Superior Province
-
Abitibi Belt (2)
-
Uchi Subprovince (1)
-
Wabigoon Belt (3)
-
-
Taltson magmatic zone (1)
-
-
Champlain Valley (1)
-
Coast plutonic complex (3)
-
Dakota Aquifer (1)
-
Denali Fault (1)
-
Disturbed Belt (6)
-
Glacier National Park (12)
-
Great Lakes
-
Lake Michigan (1)
-
Lake Superior (1)
-
-
Great Lakes region (2)
-
Great Plains
-
Northern Great Plains (17)
-
-
Gulf Coastal Plain (18)
-
Hueco Bolson (1)
-
Intermontane Belt (5)
-
Juan de Fuca Strait (1)
-
Keweenawan Rift (5)
-
Kootenay Arc (1)
-
Lake of the Woods (1)
-
Lake Superior region (1)
-
Michigan Basin (4)
-
Mississippi River basin (1)
-
Missouri River basin (1)
-
Niagara Escarpment (1)
-
North American Cordillera
-
Canadian Cordillera (48)
-
-
North American Craton (7)
-
Okanagan Valley (1)
-
Omineca Belt (7)
-
Pedregosa Basin (2)
-
Purcell Mountains (8)
-
Rio Grande Rift (12)
-
Rocky Mountain Trench (3)
-
Rocky Mountains
-
Canadian Rocky Mountains (25)
-
Central Rocky Mountains (5)
-
Northern Rocky Mountains (30)
-
Southern Rocky Mountains (12)
-
U. S. Rocky Mountains
-
Absaroka Range
-
Beartooth Mountains (10)
-
-
Bighorn Mountains (14)
-
Bitterroot Range
-
Beaverhead Mountains (5)
-
-
Bridger Range (4)
-
Flint Creek Range (1)
-
Gravelly Range (1)
-
Laramie Mountains (6)
-
Little Belt Mountains (3)
-
Medicine Bow Mountains (2)
-
Owl Creek Mountains (6)
-
San Juan Mountains (4)
-
Sangre de Cristo Mountains (5)
-
Sawatch Range (3)
-
Spanish Peaks (2)
-
Tendoy Range (1)
-
Tobacco Root Mountains (6)
-
Uinta Mountains (10)
-
Wasatch Range (5)
-
Wet Mountains (2)
-
Wind River Range (11)
-
-
-
Rocky Mountains foreland (9)
-
Saint Lawrence Lowlands (1)
-
Shuswap Complex (1)
-
Skagit Valley (1)
-
Slide Mountain Terrane (1)
-
Sonoran Desert (1)
-
Sweetgrass Arch (12)
-
Tintina Fault (2)
-
Transcontinental Arch (5)
-
Western Canada Sedimentary Basin (46)
-
Western Interior
-
Western Interior Seaway (31)
-
-
Western Overthrust Belt (11)
-
Williston Basin (83)
-
Yakutat Terrane (2)
-
Yukon-Tanana Terrane (9)
-
Yukon-Tanana Upland (1)
-
-
Northern Hemisphere (2)
-
ocean basins (4)
-
ocean circulation (1)
-
Ocean Drilling Program
-
Leg 113
-
ODP Site 690 (1)
-
-
Leg 171B
-
ODP Site 1049 (1)
-
-
Leg 194
-
ODP Site 1193 (1)
-
-
Leg 198
-
ODP Site 1209 (1)
-
-
Leg 207
-
ODP Site 1260 (1)
-
-
Leg 208
-
ODP Site 1262 (1)
-
ODP Site 1263 (1)
-
-
-
ocean floors (5)
-
ocean waves (1)
-
Oceania
-
Melanesia
-
Fiji
-
Viti Levu
-
Tavua Fiji (1)
-
-
-
Vanuatu (1)
-
-
Polynesia
-
Hawaii
-
Hawaii County Hawaii
-
Hawaii Island
-
Hilo Hawaii (1)
-
Hualalai (1)
-
Kilauea (3)
-
Kohala (1)
-
Mauna Kea (1)
-
-
-
Honolulu County Hawaii
-
Oahu
-
Honolulu Hawaii (1)
-
-
-
Kauai County Hawaii
-
Kauai (1)
-
-
Mauna Loa (2)
-
-
-
-
oceanography (2)
-
oil and gas fields (91)
-
orogeny (138)
-
oxygen
-
O-18/O-16 (139)
-
-
Pacific Coast (6)
-
Pacific Ocean
-
East Pacific
-
Northeast Pacific
-
Cascadia Basin (1)
-
Gulf of California (1)
-
Juan de Fuca Ridge (1)
-
Mendocino fracture zone (1)
-
-
Panama Basin (1)
-
-
North Pacific
-
Northeast Pacific
-
Cascadia Basin (1)
-
Gulf of California (1)
-
Juan de Fuca Ridge (1)
-
Mendocino fracture zone (1)
-
-
Northwest Pacific
-
Shatsky Rise (2)
-
South China Sea
-
Malay Basin (1)
-
Yinggehai Basin (3)
-
-
Yellow Sea
-
Bohai Sea
-
Bohai Bay (5)
-
-
-
-
-
Pacific Basin (1)
-
South Pacific
-
Southwest Pacific
-
Coral Sea
-
Marion Plateau (1)
-
-
Hikurangi Trough (1)
-
-
-
West Pacific
-
Northwest Pacific
-
Shatsky Rise (2)
-
South China Sea
-
Malay Basin (1)
-
Yinggehai Basin (3)
-
-
Yellow Sea
-
Bohai Sea
-
Bohai Bay (5)
-
-
-
-
Southwest Pacific
-
Coral Sea
-
Marion Plateau (1)
-
-
Hikurangi Trough (1)
-
-
-
-
paleobotany (1)
-
paleoclimatology (152)
-
paleoecology (184)
-
paleogeography (296)
-
paleomagnetism (81)
-
paleontology (54)
-
Paleozoic
-
Acatlan Complex (1)
-
Cambrian
-
Acadian (1)
-
Bonanza King Formation (1)
-
Brigham Group (2)
-
Conasauga Group (1)
-
Lancara Formation (2)
-
Lower Cambrian
-
Gog Group (1)
-
Terreneuvian
-
Fortunian (1)
-
-
-
Middle Cambrian
-
Burgess Shale (1)
-
Flathead Sandstone (3)
-
-
Pioche Shale (2)
-
Upper Cambrian
-
Dresbachian (1)
-
Franconia Formation (1)
-
Furongian
-
Jiangshanian (2)
-
-
Mount Simon Sandstone (1)
-
Nopah Formation (1)
-
Orr Formation (1)
-
Pilgrim Formation (1)
-
Potsdam Sandstone (1)
-
Steptoean (4)
-
Wilberns Formation (1)
-
-
-
Carboniferous
-
Amsden Formation (4)
-
Benxi Formation (1)
-
Big Snowy Group (3)
-
Diamond Peak Formation (1)
-
Ely Limestone (1)
-
Lower Carboniferous
-
Dinantian (9)
-
-
Mississippian
-
Barnett Shale (3)
-
Charles Formation (4)
-
Lower Mississippian
-
Cuyahoga Formation (1)
-
Fort Payne Formation (1)
-
Joana Limestone (2)
-
Kinderhookian
-
Banff Formation (5)
-
-
Lake Valley Formation (2)
-
Lodgepole Formation (16)
-
Osagian
-
Burlington Limestone (1)
-
-
Tournaisian (10)
-
-
Madison Group (30)
-
Middle Mississippian
-
Visean (6)
-
-
Mission Canyon Limestone (7)
-
Redwall Limestone (2)
-
Upper Mississippian
-
Chesterian (2)
-
Hartselle Sandstone (1)
-
Heath Formation (3)
-
Meramecian
-
Warsaw Formation (1)
-
-
Pennington Formation (1)
-
Serpukhovian (4)
-
-
-
Pennsylvanian
-
Joggins Formation (1)
-
Lower Pennsylvanian
-
Bashkirian (3)
-
Morrowan (1)
-
-
Middle Pennsylvanian
-
Allegheny Group (1)
-
Atokan (1)
-
Carbondale Formation (3)
-
Desmoinesian (1)
-
Moscovian (5)
-
Paradox Formation (2)
-
Tradewater Formation (1)
-
-
Minturn Formation (5)
-
Morrow Formation (2)
-
Upper Pennsylvanian
-
Gzhelian (2)
-
Virgilian (1)
-
Wescogame Formation (1)
-
-
Watahomigi Formation (1)
-
-
Upper Carboniferous (5)
-
-
Chattanooga Shale (1)
-
Cow Head Group (5)
-
Deadwood Formation (6)
-
Devonian
-
Beaverhill Lake Group (3)
-
Heemskirk Granite (1)
-
Keg River Formation (3)
-
Lower Devonian
-
Emsian (3)
-
Lochkovian (1)
-
Manlius Formation (1)
-
Pragian (1)
-
-
Middle Devonian
-
Eifelian (3)
-
Elk Point Group (2)
-
Givetian (4)
-
Prairie Evaporite (5)
-
Winnipegosis Formation (5)
-
-
Muth Quartzite (2)
-
Old Red Sandstone (2)
-
Ponta Grossa Formation (1)
-
Popovich Formation (1)
-
Slave Point Formation (2)
-
Swan Hills Formation (3)
-
Upper Devonian
-
Birdbear Formation (1)
-
Duperow Formation (2)
-
Famennian
-
upper Famennian (1)
-
Wabamun Group (5)
-
-
Frasnian
-
Leduc Formation (1)
-
-
Grosmont Formation (3)
-
Jefferson Group (6)
-
Nisku Formation (3)
-
Ohio Shale (1)
-
Palliser Formation (3)
-
-
Waterways Formation (1)
-
-
Dunkard Group (1)
-
Exshaw Formation (13)
-
Lisburne Group (2)
-
lower Paleozoic
-
Conococheague Formation (1)
-
-
Maroon Formation (1)
-
middle Paleozoic (3)
-
Minnelusa Formation (2)
-
New Albany Shale (2)
-
Ordovician
-
Antelope Valley Limestone (1)
-
Ely Springs Dolomite (1)
-
Eureka Quartzite (2)
-
Lower Ordovician
-
Arenigian (1)
-
Fillmore Formation (2)
-
Ibexian (3)
-
Manitou Formation (1)
-
Saint George Group (1)
-
Tremadocian (3)
-
-
Middle Ordovician
-
Saint Peter Sandstone (1)
-
Table Head Group (1)
-
Whiterockian (2)
-
Winnipeg Formation (2)
-
-
Montoya Group (1)
-
Upper Ordovician
-
Ashgillian (1)
-
Bighorn Dolomite (7)
-
Cincinnatian
-
Richmondian (1)
-
-
Fernvale Formation (1)
-
Hirnantian (2)
-
Katian (3)
-
Maquoketa Formation (1)
-
Mohawkian (1)
-
Red River Formation (7)
-
Yeoman Formation (2)
-
-
Vinini Formation (1)
-
-
Permian
-
Coconino Sandstone (1)
-
Cutler Formation (2)
-
Ecca Group (1)
-
Guadalupian
-
Capitan Formation (1)
-
Capitanian (2)
-
Grayburg Formation (1)
-
Roadian (1)
-
Wordian (1)
-
-
Kaibab Formation (4)
-
Khuff Formation (1)
-
Lower Permian
-
Abo Formation (1)
-
Cisuralian
-
Kungurian (2)
-
-
Leonardian
-
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Opeche Shale (1)
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Wolfcampian (3)
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Lyons Sandstone (2)
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Meade Peak Member (3)
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Park City Formation (6)
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Phosphoria Formation (11)
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Retort Phosphatic Shale Member (1)
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Rotliegendes (1)
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Rustler Formation (1)
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Toroweap Formation (1)
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Upper Permian
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Lopingian
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Changhsingian (1)
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Permian-Triassic boundary (13)
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Salado Formation (1)
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Zechstein (1)
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Yates Formation (1)
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Yeso Formation (1)
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Pilot Shale (1)
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Rangeley Formation (1)
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Sauk Sequence (4)
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Silurian
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Lockport Formation (1)
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Lower Silurian
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Grimsby Sandstone (2)
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Llandovery (2)
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Wenlock (2)
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Middle Silurian
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Guelph Formation (1)
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Niagaran (2)
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Upper Silurian
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Ludlow (2)
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Pridoli (1)
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Salina Group (1)
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Supai Formation (2)
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Taiyuan Formation (1)
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Tensleep Sandstone (7)
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Tippecanoe Sequence (1)
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upper Paleozoic
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Antrim Shale (1)
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Bakken Formation (26)
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Copacabana Group (1)
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Dwyka Formation (1)
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Kaskaskia Sequence (1)
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Shanxi Formation (2)
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Wood River Formation (1)
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Weber Sandstone (3)
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Plantae
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Filicopsida
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Spermatophyta
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plate tectonics (195)
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Precambrian
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Taihua Group (1)
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Chuar Group (2)
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Delhi Supergroup (2)
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Gunflint Iron Formation (3)
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upper Precambrian
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Kunyang Group (1)
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Mesoproterozoic
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Aldridge Formation (2)
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Wallace Formation (3)
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Miette Group (2)
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Neoproterozoic
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Pocatello Formation (1)
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Sinian
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Windermere System (5)
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Vadito Group (1)
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problematic fossils
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argillite (6)
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arkose (1)
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Iowa
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Kansas
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Kentucky
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Klamath Mountains (6)
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Louisiana
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Madison Aquifer (1)
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Maine (4)
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Massachusetts
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Michigan
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Michigan Upper Peninsula
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Keweenaw County Michigan
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Isle Royale National Park (1)
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Marquette County Michigan (1)
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Midcontinent (8)
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Minnesota
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Brown County Minnesota (1)
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Duluth Complex (3)
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Mississippi
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Missouri
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Montana
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Garfield County Montana (3)
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Moxa Arch (5)
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Nebraska
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Nevada
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New Jersey
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New Mexico
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New York
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North Carolina
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North Dakota
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Ohio
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Oklahoma
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Oregon
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Pennsylvania
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South Carolina
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South Dakota
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Southern U.S. (1)
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Tennessee
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Texas
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Amarillo Uplift (1)
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U. S. Rocky Mountains
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Utah
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Vermont
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Washington
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Western U.S. (89)
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Wisconsin
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Wyoming
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Wyoming Province (38)
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volcanology (3)
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waste disposal (5)
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water resources (2)
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weathering (46)
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well-logging (25)
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X-ray analysis (3)
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rock formations
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Alpine Schist (1)
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J Sandstone (1)
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Lopez de Bertodano Formation (1)
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Paskapoo Formation (8)
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Peace River Formation (4)
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Raton Formation (1)
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Sagavanirktok Formation (1)
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sedimentary rocks
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calcrete (2)
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carbonate rocks
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chalk (3)
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chemically precipitated rocks
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chert
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evaporites
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salt (2)
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iron formations
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clastic rocks
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arenite
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argillite (6)
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arkose (1)
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coal
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oil shale
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shell beds (1)
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banks (1)
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graded bedding (3)
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planar bedding structures
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GeoRef Categories
Era and Period
Epoch and Age
Book Series
Date
Availability
northwestern Montana
The Mesoproterozoic Belt Supergroup in Glacier and Waterton Lakes national parks, northwestern Montana and southwestern Alberta: Sedimentary facies and syndepositional deformation Available to Purchase
ABSTRACT A large portion of the Belt-Purcell Supergroup is well exposed in the vicinity of Glacier and Waterton Lakes national parks of northwestern Montana, USA, and southwestern Alberta, Canada. These strata were deposited in the northeastern part of the Mesoproterozoic Belt Basin. The dramatic rate of subsidence combined with dominantly fine-grained sediment influx produced thick units of broadly uniform lithology, which constitute the spectacular and unusually colorful mountain scenery of this region. Seemingly fairly simple at first glance, in detail these rocks exhibit a great deal of facies heterogeneity and a number of unusual attributes. This has resulted in contrasting and controversial interpretations of sedimentary features, depositional dynamics, sedimentary environments, and consequently the overall understanding of the entire basin. The Belt Basin reveals itself to be a unique setting in many respects, but ideas stemming from these rocks have implications for other strata, not just those of pre-Cambrian age, but for the entire Phanerozoic as well. The Belt Supergroup is therefore a particularly stimulating field-trip destination that challenges textbook interpretations.
Sheetflood sedimentology of the Mesoproterozoic Revett Formation, Belt Supergroup, northwestern Montana, USA Available to Purchase
The ca. 1.460 Ga Revett Formation is a gray and purple quartzite lithosome in northwestern Montana, and it interfingers eastward into red argillite of the Grinnell Formation in Glacier National Park. The Revett Formation was analyzed in northwestern Montana by identifying sedimentary structures in stratigraphic sections and by interpreting flow processes of the structures using the standard flow regime model (e.g., Simons et al., 1965). The sedimentary structures and thicknesses of the event beds were then organized into eight sediment types (lithofacies) that were grouped into three sediment complexes: the playa complex, the antidune complex, and the sheet sand complex. The arrangements of the sediment types and complexes within the stratigraphic framework of the lower informal Revett member indicated the configurations of the depositional environments in space, and the vertical configurations of the sediment types revealed the depositional history of the lower Revett member. The lower Revett member lithosome interfingers eastward into the red argillite of the Grinnell Formation lithosome, and has eight through-going descriptive, stacked, lithic units, called lithostromes. Lithostromes 2, 4, 6, and 8 (from the bottom up) are composed of the sheet sand complex and extend into playa complexes of the Grinnell Formation. They were deposited by sandy sheetfloods that flowed at grade and terminated as the water sank into the sand substrate. Between lithostromes 2, 4, 6, and 8 are lithostromes marked by playa lakes of the playa complex that spread from the east across western Montana during humid periods. They were overlain by sheetfloods of the antidune complex that built eastward over the playa complex as the playa lakes retreated with increasing aridity. The antidune complex was overlain by the sheet sand complex of a vast sand plain deposited by sheetfloods from the southwest that flowed at grade level across western Montana during arid periods. The sheetflood deposits of the Revett Formation were mostly deposited by the upper-flow regime element of the established fluvial facies model.
Allostratigraphy of the Upper Cretaceous Cardium Formation in subsurface and outcrop in southern Alberta, and correlation to equivalent strata in northwestern Montana Available to Purchase
Regional structure and kinematic history of the Cordilleran fold-thrust belt in northwestern Montana, USA Open Access
Evolution of the Cordilleran foreland basin system in northwestern Montana, U.S.A. Available to Purchase
Jurassic onset of foreland basin deposition in northwestern Montana, USA: Implications for along-strike synchroneity of Cordilleran orogenic activity Available to Purchase
Geology, geochemistry, and ore deposits of the Oligocene Hog Heaven volcanic field, northwestern Montana; discussion Available to Purchase
Geology, geochemistry, and ore deposits of the Oligocene Hog Heaven volcanic field, northwestern Montana; reply Available to Purchase
A 12 000 year radiocarbon date of deglaciation from the Continental Divide of northwestern Montana Free
Geology, geochemistry, and ore deposits of the Oligocene Hog Heaven volcanic field, northwestern Montana Available to Purchase
40 Ar/ 39 Ar age and correlation of the nonmarine Two Medicine Formation (Upper Cretaceous), northwestern Montana, U.S.A. Free
The Cordilleran Foreland Thrust Belt in Northwestern Montana and Northern Idaho From COCORP and Industry Seismic Reflection Data Available to Purchase
Taphonomy of three dinosaur bone beds in the Upper Cretaceous Two Medicine Formation of northwestern Montana; evidence for drought-related mortality Available to Purchase
Regional Source Rock Potential of Lacustrine Oligocene Kishenehn Formation, Northwestern Montana Available to Purchase
Syntectonic sedimentation in the Proterozoic upper Belt Supergroup, northwestern Montana Available to Purchase
Hinsdalite and other products of oxidation at the Daisy Creek stratabound copper-silver prospect, northwestern Montana Available to Purchase
Zone of interaction between Laurentide and Rocky Mountain glaciers east of Waterton-Glacier Park, northwestern Montana and south western Alberta Available to Purchase
Abstract The evidence for interaction between Laurentide and Rocky Mountain glaciers east of Waterton-Glacier Park can best be studied by examining a number of sites in the zone of glacier overlap and possible confluence. The 10 stops described in this field guide are located in the Saint Mary, Belly, and Waterton drainages in Montana and Alberta (Fig. 1). With the exceptions of Stops 1 and 10, which occur on the Blackfeet Indin Reservation and in Waterton Park, respectively, all stops occur on public roads through private land. Landowner’s permission is not required for the excursion as described but should be obtaine before collecting samples or extensive off-route exploration. The trip can be completed in a long half day with two-wheel drive vehicle. Those with less time may limit their trip to Stops 1 through 5 on the U.S. side or the approximately equivalent Stops 6 through 10 in Canada. The U.S. portion of the trip is covered by the Cutbank 1:250,000 topographic sheet and the Saint Mary, Babb, Duck Lake, Wetzel, Hall Coulee, Emigrant Gap, and Pike Lake 1:24,000 sheets. The Canadian portion is covered by the Lethbridge 1:250,000 sheet and the Cardston and Waterton Lakes (82 H/3 and H/4) 1:50,000 sheets.