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all geography including DSDP/ODP Sites and Legs
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Africa
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Cape Verde Islands (2)
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Central Africa
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Angola (5)
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Gabon
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East Africa
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Korea
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Kamchatka Russian Federation
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Kemerovo Russian Federation (1)
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Krasnoyarsk Russian Federation
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Taymyr Dolgan-Nenets Russian Federation
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Tennessee
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Texas
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Crinozoa
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Crinoidea
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Inadunata (1)
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Echinozoa
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Echinoidea (4)
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Mollusca
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Bivalvia
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Heterodonta
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Veneroida
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Astartidae
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Veneridae
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Ostreoidea
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Ostreidae
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Crassostrea
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Crassostrea virginica (1)
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Pterioida
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Pteriina
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Anthraconaia (2)
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Pectinacea
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Pectinidae (2)
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Solemyida (1)
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Cephalopoda
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Ammonoidea
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Ammonites (3)
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Coleoidea
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Belemnoidea
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Nautiloidea (1)
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Gastropoda
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Neogastropoda
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Muricidae (1)
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Turritellidae (2)
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Hyolithes (3)
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Polyplacophora (1)
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Tentaculitida
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Tentaculitidae
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Porifera
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Stromatoporoidea (8)
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Protista
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Foraminifera
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Fusulinina
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Fusulinidae
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Miliolina
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Miliolacea
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Quinqueloculina (1)
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Rotaliina
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Buliminacea
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Uvigerinidae
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Uvigerina (1)
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Cassidulinacea
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Anomalinidae
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Cibicidoides (1)
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Nodosariacea
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Nodosariidae
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Lenticulina (1)
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Nodosaria (1)
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Orbitoidacea
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Amphistegina (2)
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Cibicides (2)
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Rotaliacea
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Ammonia (2)
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Elphidium (2)
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Nummulitidae
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Nummulites (1)
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Textulariina
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Lituolacea
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Ammobaculites (1)
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Lituolidae
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Haplophragmoides (1)
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Trochammina (4)
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Radiolaria (12)
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Vermes
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Annelida (1)
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Phoronida (1)
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Polychaeta
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Serpulidae (1)
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scolecodonts (2)
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lichens (1)
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Metazoa (7)
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microfossils
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Chitinozoa (1)
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Conodonta
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Palmatolepis (2)
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Fusulinina
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Fusulinidae
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Triticites (1)
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problematic microfossils (2)
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scolecodonts (2)
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palynomorphs
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acritarchs (11)
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Chitinozoa (1)
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Dinoflagellata
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Deflandrea (1)
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megaspores (6)
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miospores
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pollen (44)
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Plantae
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algae
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calcareous algae (3)
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Chlorophyta
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Chlorophyceae
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Codiaceae
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Halimeda (1)
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Dasycladaceae (1)
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Coccolithophoraceae (2)
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diatoms (11)
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Epiphyton (1)
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nannofossils (10)
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Bryophyta (1)
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Pteridophyta
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Filicopsida
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Archaeopteris (2)
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Azolla (1)
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Pecopteris (2)
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Lycopsida
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Lepidodendron (1)
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Lycopodium (2)
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Sphenopsida (4)
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Spermatophyta
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Angiospermae
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Dicotyledoneae
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Alnus (1)
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Myrtaceae
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Eucalyptus (1)
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Nothofagus (2)
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Rosidae (1)
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Gymnospermae
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Coniferales
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Cupressaceae (1)
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Pinaceae
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Pinus (1)
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Cordaitales
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Cordaites (2)
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Ginkgoales
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Ginkgo (1)
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Glossopteridales
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Gangamopteris (1)
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Pteridospermae (3)
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-
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problematic fossils
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problematic microfossils (2)
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Pterobranchia (2)
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thallophytes (1)
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tracks (12)
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-
geochronology methods
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(U-Th)/He (19)
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Ar/Ar (74)
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exposure age (15)
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fission-track dating (20)
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He/He (1)
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infrared stimulated luminescence (4)
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K/Ar (11)
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Lu/Hf (9)
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Nd/Nd (1)
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optically stimulated luminescence (12)
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paleomagnetism (52)
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Pb/Pb (7)
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Pb/Th (6)
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racemization (5)
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radiation damage (5)
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Rb/Sr (8)
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Re/Os (6)
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sclerochronology (1)
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Sm/Nd (18)
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Sr/Sr (4)
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tephrochronology (3)
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terrestrial age (1)
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Th/U (9)
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thermochronology (31)
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thermoluminescence (1)
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tree rings (5)
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U/Pb (230)
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U/Th/Pb (23)
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uranium disequilibrium (6)
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geologic age
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Anthropocene (1)
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Cenozoic
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Agbada Formation (2)
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Blancan (1)
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Bronze Age (1)
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Glenns Ferry Formation (1)
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Iron Age (1)
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lower Cenozoic (1)
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middle Cenozoic (1)
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Quaternary
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Cordilleran ice sheet (3)
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Holocene
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Atlantic (1)
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lower Holocene (5)
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Medieval Warm Period (1)
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Middle Ages (1)
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middle Holocene (2)
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Neoglacial (2)
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upper Holocene
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Roman period (1)
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-
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Pleistocene
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Bishop Tuff (1)
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Champlain Sea (1)
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Illinoian (4)
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Lake Agassiz (1)
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Lake Lahontan (4)
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Lake Missoula (2)
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Loveland Loess (1)
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lower Pleistocene
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Calabrian (1)
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Gelasian (2)
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middle Pleistocene (3)
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upper Pleistocene
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Rancholabrean (1)
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Sangamonian (4)
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Weichselian
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upper Weichselian
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Allerod (1)
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Bolling (1)
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Younger Dryas (3)
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-
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Wisconsinan
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upper Wisconsinan (3)
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-
-
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upper Quaternary (23)
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-
Sirius Group (1)
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Siwalik System (2)
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Stone Age (1)
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Tertiary
-
Arikaree Group (1)
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Catahoula Formation (1)
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Challis Volcanics (3)
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Florissant Lake Beds (1)
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lower Tertiary (4)
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middle Tertiary (3)
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Muddy Creek Formation (1)
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Neogene
-
Hemphillian (1)
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Miocene
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Ash Hollow Formation (1)
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Astoria Formation (1)
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Calvert Formation (5)
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Clarendonian (1)
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Columbia River Basalt Group (5)
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Crater Flat Tuff (1)
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Ellensburg Formation (1)
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Fleming Formation (1)
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Grande Ronde Basalt (2)
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Guantao Formation (1)
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lower Miocene
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Aquitanian (1)
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Burdigalian (1)
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Saucesian (1)
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-
middle Miocene
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Choptank Formation (3)
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Langhian (1)
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-
Oakville Sandstone (1)
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Paintbrush Tuff (1)
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Puerto Madryn Formation (1)
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Pungo River Formation (1)
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Saint Marys Formation (2)
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Temblor Formation (2)
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Tiva Canyon Member (1)
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Topopah Spring Member (1)
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upper Miocene
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Eastover Formation (1)
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Messinian (2)
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Santa Margarita Formation (2)
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Tortonian (1)
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-
-
Ogallala Formation (1)
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Pliocene
-
Citronelle Formation (1)
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Goliad Sand (1)
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lower Pliocene (10)
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upper Pliocene
-
Chowan River Formation (1)
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Piacenzian (1)
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-
Yorktown Formation (3)
-
-
Purisima Formation (1)
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Ringold Formation (1)
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Sisquoc Formation (1)
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upper Neogene (2)
-
-
Paleogene
-
Barail Group (1)
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Dongying Formation (3)
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Eocene
-
Absaroka Supergroup (1)
-
Avon Park Formation (1)
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Bracklesham Group (1)
-
Bridger Formation (1)
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Bridgerian (1)
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Castle Hayne Limestone (1)
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Clarno Formation (1)
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Green River Formation (6)
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Lake Gosiute (3)
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lower Eocene
-
Aquia Formation (3)
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Wasatchian (1)
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Willwood Formation (3)
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Wind River Formation (1)
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Ypresian (3)
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middle Eocene
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Bartonian (2)
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Claiborne Group (3)
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Lisbon Formation (1)
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Lutetian (3)
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Tyee Formation (2)
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-
Mirador Formation (1)
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Mission Valley Formation (1)
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Nanjemoy Formation (4)
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Narizian (1)
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Umpqua Formation (1)
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upper Eocene
-
Jackson Group (1)
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Moodys Branch Formation (1)
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Piney Point Formation (1)
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Priabonian (1)
-
Whitsett Formation (1)
-
-
-
Hanna Formation (2)
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lower Paleogene (1)
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Oligocene
-
Creede Formation (1)
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Frio Formation (2)
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lower Oligocene (3)
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upper Oligocene
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Chattian (1)
-
-
Vicksburg Group (1)
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-
Paleocene
-
Clayton Formation (2)
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lower Paleocene
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Danian (5)
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K-T boundary (7)
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Puercan (2)
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Torrejonian (1)
-
-
Midway Group (1)
-
Nacimiento Formation (2)
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Nanafalia Formation (1)
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Ravenscrag Formation (2)
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Tongue River Member (2)
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Tullock Member (1)
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upper Paleocene
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Thanetian (4)
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Tiffanian (2)
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-
-
Paleocene-Eocene Thermal Maximum (7)
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Refugian (1)
-
Renova Formation (1)
-
Sespe Formation (3)
-
Tyonek Formation (1)
-
Wasatch Formation (1)
-
White River Group (2)
-
Wilcox Group (4)
-
Williamsburg Formation (1)
-
-
Pirabas Formation (1)
-
Shahejie Formation (5)
-
Twin Sisters Dunite (1)
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upper Tertiary (1)
-
Vaqueros Formation (1)
-
-
Tulare Formation (1)
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upper Cenozoic (5)
-
-
Dalradian (9)
-
Lake Bonneville (3)
-
Laurentide ice sheet (7)
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Mesozoic
-
Cretaceous
-
Alisitos Formation (1)
-
Bahariya Formation (1)
-
Comanchean
-
Buda Limestone (2)
-
Edwards Formation (3)
-
Georgetown Formation (1)
-
Glen Rose Formation (4)
-
Pearsall Formation (2)
-
Rodessa Formation (1)
-
Travis Peak Formation (2)
-
-
Dakota Formation (3)
-
Kuskokwim Group (1)
-
Logan Canyon Formation (1)
-
Lower Cretaceous
-
Albian (6)
-
Aptian
-
Shuaiba Formation (1)
-
-
Barremian (1)
-
Berriasian (3)
-
Bluesky Formation (2)
-
Cadomin Formation (2)
-
Cedar Mountain Formation (1)
-
Cloverly Formation (1)
-
Edwards Formation (3)
-
Georgetown Formation (1)
-
Glen Rose Formation (4)
-
Lakota Formation (1)
-
Mannville Group (3)
-
McMurray Formation (2)
-
Missisauga Formation (2)
-
Mowry Shale (2)
-
Neocomian (1)
-
Pearsall Formation (2)
-
Rodessa Formation (1)
-
Sligo Formation (2)
-
Spirit River Formation (1)
-
Torok Formation (1)
-
Travis Peak Formation (2)
-
Valanginian (1)
-
-
Mancos Shale (6)
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Middle Cretaceous (6)
-
Nanushuk Group (2)
-
Natih Formation (3)
-
Potomac Group (6)
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Upper Cretaceous
-
Bearpaw Formation (2)
-
Belle Fourche Shale (1)
-
Blackhawk Formation (3)
-
Buda Limestone (2)
-
Campanian
-
lower Campanian (1)
-
upper Campanian (2)
-
-
Cardium Formation (4)
-
Carlile Shale (2)
-
Castlegate Sandstone (2)
-
Cenomanian
-
lower Cenomanian (1)
-
-
Codell Sandstone Member (1)
-
Dawson Canyon Formation (1)
-
Eagle Sandstone (1)
-
Eutaw Formation (1)
-
Ferron Sandstone Member (8)
-
Fort Hays Limestone Member (1)
-
Fox Hills Formation (1)
-
Frontier Formation (2)
-
Fruitland Formation (5)
-
Greenhorn Limestone (2)
-
Gulfian
-
Aguja Formation (1)
-
Austin Chalk (3)
-
Austin Group (1)
-
Eagle Ford Formation (14)
-
Woodbine Formation (2)
-
-
Horseshoe Canyon Formation (3)
-
Judith River Formation (1)
-
Kirtland Shale (2)
-
K-T boundary (7)
-
La Luna Formation (1)
-
Ladd Formation (1)
-
Lewis Shale (3)
-
Maestrichtian
-
lower Maestrichtian (2)
-
upper Maestrichtian (1)
-
-
Mesaverde Group (10)
-
Middendorf Formation (2)
-
Moreno Formation (1)
-
Navesink Formation (3)
-
Niobrara Formation (5)
-
Ojo Alamo Sandstone (1)
-
Peedee Formation (1)
-
Pictured Cliffs Sandstone (2)
-
Pierre Shale (4)
-
Point Lookout Sandstone (1)
-
Rock Springs Formation (1)
-
Santonian (1)
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Senonian (10)
-
Straight Cliffs Formation (2)
-
Tuolumne Intrusive Suite (3)
-
Turonian (13)
-
Tuscaloosa Formation (5)
-
Two Medicine Formation (1)
-
Wall Creek Member (1)
-
Williams Fork Formation (1)
-
-
Viking Formation (2)
-
Whitemud Formation (1)
-
-
Franciscan Complex (6)
-
Jurassic
-
Arapien Shale (1)
-
Bazhenov Formation (1)
-
Bonanza Group (1)
-
Carmel Formation (2)
-
Clarens Formation (1)
-
Fernie Formation (1)
-
Heather Formation (1)
-
Kingak Shale (2)
-
Lower Jurassic
-
Hettangian (1)
-
lower Liassic (2)
-
Sinemurian (2)
-
Talkeetna Formation (1)
-
Toarcian (1)
-
upper Liassic (1)
-
-
Mic Mac Formation (1)
-
Middle Jurassic
-
Bajocian
-
Ness Formation (1)
-
Tarbert Formation (1)
-
-
Bathonian (1)
-
Callovian (2)
-
-
Norphlet Formation (3)
-
Posidonia Shale (1)
-
Twin Creek Limestone (2)
-
Upper Jurassic
-
Buckner Formation (2)
-
Entrada Sandstone (1)
-
Haynesville Formation (2)
-
Kimmeridge Clay (2)
-
Naknek Formation (1)
-
Oxfordian (5)
-
Portlandian (2)
-
Smackover Formation (2)
-
Stump Formation (1)
-
Sundance Formation (2)
-
Swift Formation (1)
-
Tithonian (5)
-
-
-
Kayenta Formation (1)
-
lower Mesozoic (4)
-
Mist Mountain Formation (1)
-
Moenave Formation (1)
-
Navajo Sandstone (4)
-
Newark Supergroup (3)
-
Statfjord Formation (1)
-
Triassic
-
Charlie Lake Formation (1)
-
Hawkesbury Sandstone (1)
-
Liard Formation (1)
-
Lower Triassic
-
Dinwoody Formation (1)
-
Olenekian (1)
-
Panchet Series (1)
-
Permian-Triassic boundary (6)
-
-
Middle Triassic
-
Anisian (3)
-
Doig Formation (2)
-
-
Moenkopi Formation (2)
-
Montney Formation (3)
-
Nicola Group (1)
-
Sherwood Sandstone (1)
-
Shublik Formation (3)
-
Takla Group (1)
-
Upper Triassic
-
Baldonnel Formation (1)
-
Carnian
-
Ischigualasto Formation (1)
-
-
Chinle Formation (3)
-
Dockum Group (1)
-
Mercia Mudstone (1)
-
Molteno Formation (1)
-
Norian (4)
-
Pardonet Formation (1)
-
Rhaetian
-
Penarth Group (1)
-
-
Xujiahe Formation (1)
-
Yanchang Formation (3)
-
-
-
upper Mesozoic (4)
-
Vaca Muerta Formation (2)
-
Wingate Sandstone (1)
-
Yanshanian (2)
-
-
MIS 2 (1)
-
MIS 5 (2)
-
Paleozoic
-
Arbuckle Group (2)
-
Bedford Shale (2)
-
Berea Sandstone (9)
-
Cambrian
-
Acadian (6)
-
Carrara Formation (1)
-
Conasauga Group (4)
-
Lower Cambrian
-
Antietam Formation (2)
-
Chilhowee Group (5)
-
Gog Group (1)
-
Murphy Marble (1)
-
Poleta Formation (1)
-
Rome Formation (4)
-
Tommotian (1)
-
-
Middle Cambrian
-
Wheeler Formation (1)
-
Zhangxia Formation (1)
-
-
Upper Cambrian
-
Copper Ridge Dolomite (1)
-
Dresbachian (1)
-
Eau Claire Formation (3)
-
Franconia Formation (1)
-
Furongian (5)
-
Galesville Sandstone (1)
-
Lamotte Sandstone (1)
-
Mount Simon Sandstone (6)
-
Potsdam Sandstone (4)
-
Steptoean (4)
-
-
-
Carboniferous
-
Amsden Formation (1)
-
Bartlesville Sand (1)
-
Benxi Formation (1)
-
Big Snowy Group (1)
-
Burbank Sand (1)
-
Jackfork Group (2)
-
Johns Valley Formation (1)
-
Lower Carboniferous
-
Asbian (3)
-
Dinantian (3)
-
-
Mabou Group (1)
-
Middle Carboniferous (1)
-
Mississippian
-
Barnett Shale (7)
-
Boone Formation (2)
-
Borden Group (2)
-
Chainman Shale (1)
-
Charles Formation (2)
-
Leadville Formation (1)
-
Lower Mississippian
-
Cuyahoga Formation (3)
-
Fort Payne Formation (4)
-
Kayak Shale (1)
-
Kekiktuk Conglomerate (1)
-
Kinderhookian (1)
-
Lake Valley Formation (1)
-
Lodgepole Formation (1)
-
Osagian
-
Burlington Limestone (2)
-
-
Pocono Formation (6)
-
Tournaisian (5)
-
-
Madison Group (7)
-
Middle Mississippian
-
Visean (3)
-
-
Price Formation (3)
-
Redwall Limestone (1)
-
Sunbury Shale (5)
-
Upper Mississippian
-
Chesterian
-
Imo Formation (1)
-
-
Fayetteville Formation (4)
-
Greenbrier Limestone (5)
-
Hartselle Sandstone (2)
-
Heath Formation (2)
-
Hinton Formation (1)
-
Mauch Chunk Formation (6)
-
Meramecian
-
Salem Limestone (3)
-
-
Parkwood Formation (1)
-
Pitkin Limestone (1)
-
Serpukhovian (3)
-
-
Windsor Group (3)
-
-
Namurian (2)
-
Pennsylvanian
-
Brazil Formation (1)
-
Conemaugh Group (7)
-
Cumberland Group (1)
-
Joggins Formation (2)
-
Lower Pennsylvanian
-
Bashkirian (1)
-
Caseyville Formation (1)
-
Haymond Formation (1)
-
Lee Formation (1)
-
Morrowan
-
Bloyd Formation (1)
-
-
New River Formation (2)
-
Pocahontas Formation (1)
-
-
Mary Lee Coal (1)
-
Middle Pennsylvanian
-
Allegheny Group (7)
-
Atokan
-
Atoka Formation (1)
-
-
Breathitt Formation (1)
-
Carbondale Formation (1)
-
Desmoinesian
-
Marmaton Group (1)
-
-
Kanawha Formation (2)
-
Moscovian (7)
-
Paradox Formation (2)
-
Staunton Formation (1)
-
Tradewater Formation (1)
-
-
Minturn Formation (1)
-
Monongahela Group (6)
-
Morien Group (1)
-
Morrow Formation (1)
-
Pittsburgh Coal (3)
-
Pottsville Group (6)
-
Saginaw Formation (1)
-
Strawn Series (3)
-
Upper Pennsylvanian
-
Ames Limestone (2)
-
Cisco Group (2)
-
Glenshaw Formation (2)
-
Gzhelian (4)
-
Holder Formation (1)
-
Kasimovian (2)
-
Missourian
-
Kansas City Group (1)
-
Lansing Group (1)
-
Stanton Formation (1)
-
Wann Formation (1)
-
-
Virgilian (2)
-
-
Watahomigi Formation (1)
-
-
Silesian (1)
-
Upper Carboniferous
-
Stephanian (3)
-
Westphalian (7)
-
-
Wahoo Limestone (1)
-
-
Catskill Formation (10)
-
Chattanooga Shale (8)
-
Deadwood Formation (4)
-
Devonian
-
Beaverhill Lake Group (2)
-
Genesee Group (1)
-
Gile Mountain Formation (1)
-
Guilmette Formation (2)
-
Heemskirk Granite (1)
-
Levis Shale (1)
-
Lower Devonian
-
Battery Point Formation (2)
-
Coeymans Formation (1)
-
Emsian (9)
-
Lochkovian (8)
-
Manlius Formation (2)
-
Oriskany Sandstone (17)
-
Pragian (4)
-
Shap Granite (1)
-
-
Middle Devonian
-
Cedar Valley Formation (1)
-
Detroit River Group (1)
-
Dundee Limestone (1)
-
Eifelian (8)
-
Elk Point Group (1)
-
Givetian (8)
-
Hamilton Group (11)
-
Jeffersonville Limestone (1)
-
Mahantango Formation (8)
-
Marcellus Shale (50)
-
Moscow Formation (3)
-
Onondaga Limestone (17)
-
Sylvania Formation (1)
-
Tioga Bentonite (4)
-
Tully Limestone (7)
-
-
Millboro Shale (3)
-
Old Red Sandstone (4)
-
Popovich Formation (1)
-
Ramparts Formation (1)
-
Slave Point Formation (1)
-
Swan Hills Formation (3)
-
Thirtyone Formation (1)
-
Upper Devonian
-
Brallier Shale (3)
-
Chemung Formation (5)
-
Cleveland Member (2)
-
Famennian
-
lower Famennian (1)
-
Wabamun Group (3)
-
-
Frasnian
-
Leduc Formation (1)
-
-
Hampshire Formation (7)
-
Huron Member (4)
-
Jefferson Group (2)
-
Kanayut Conglomerate (1)
-
Kellwasser event (2)
-
Ohio Shale (13)
-
Olentangy Shale (2)
-
Palliser Formation (3)
-
West Falls Formation (1)
-
-
Waterways Formation (3)
-
-
Dunkard Group (7)
-
Ellis Bay Formation (1)
-
Exshaw Formation (2)
-
Hanson Creek Formation (1)
-
Hartland Formation (1)
-
Helderberg Group (8)
-
Hunton Group (1)
-
Keyser Limestone (4)
-
Knox Group (12)
-
Lisburne Group (2)
-
lower Paleozoic
-
Ashe Formation (3)
-
Cape Phillips Formation (1)
-
Chopawamsic Formation (4)
-
Conococheague Formation (3)
-
Rose Run Sandstone (3)
-
Wilmington Complex (3)
-
-
Merrimack Group (1)
-
middle Paleozoic
-
Hillabee Chlorite Schist (2)
-
-
New Albany Shale (4)
-
Ordovician
-
Catoche Formation (1)
-
Chickamauga Group (1)
-
Eureka Quartzite (4)
-
Gualcamayo Formation (2)
-
Lexington Limestone (3)
-
Lower Ordovician
-
Arenigian (1)
-
Beekmantown Group (10)
-
El Paso Group (1)
-
Ellenburger Group (3)
-
Fillmore Formation (1)
-
Ibexian (4)
-
Mascot Dolomite (1)
-
Prairie du Chien Group (1)
-
Saint George Group (4)
-
Shakopee Formation (1)
-
Tremadocian (3)
-
-
Martinsburg Formation (5)
-
Middle Ordovician
-
Ammonoosuc Volcanics (1)
-
Black River Group (4)
-
Blackriverian (1)
-
Bromide Formation (3)
-
Champlainian (1)
-
Chazy Group (2)
-
Chazyan (4)
-
Darriwilian (4)
-
Deicke Bentonite Bed (3)
-
Galena Dolomite (1)
-
Lenoir Limestone (1)
-
Llanvirnian (1)
-
Millbrig Bentonite Bed (4)
-
Normanskill Formation (1)
-
Platteville Formation (1)
-
Saint Peter Sandstone (1)
-
Simpson Group (2)
-
Table Head Group (2)
-
Whiterockian (4)
-
-
Montoya Group (2)
-
Pogonip Group (2)
-
Trenton Group (18)
-
Upper Ordovician
-
Ashgillian (2)
-
Bighorn Dolomite (3)
-
Caradocian (7)
-
Cincinnatian
-
Maysvillian (2)
-
Richmondian (2)
-
-
Edenian (1)
-
Fairview Formation (2)
-
Hirnantian (5)
-
Juniata Formation (3)
-
Katian (10)
-
Kope Formation (6)
-
Lorraine Group (1)
-
Maquoketa Formation (5)
-
Mohawkian (6)
-
Red River Formation (1)
-
Reedsville Formation (2)
-
Sandbian (6)
-
Trentonian (9)
-
Wufeng Formation (2)
-
-
Utica Shale (15)
-
Valmy Formation (2)
-
Viola Limestone (3)
-
-
Paganzo Group (1)
-
Permian
-
Castile Formation (2)
-
Chase Group (1)
-
Cutler Formation (2)
-
Ecca Group (3)
-
Echooka Formation (1)
-
Guadalupian
-
Bell Canyon Formation (2)
-
Brushy Canyon Formation (1)
-
Capitanian (2)
-
Cherry Canyon Formation (1)
-
Delaware Mountain Group (1)
-
Grayburg Formation (2)
-
Roadian (5)
-
Tansill Formation (1)
-
Wordian (2)
-
-
Kaibab Formation (1)
-
Khuff Formation (2)
-
Longtan Formation (3)
-
Lower Permian
-
Al Khlata Formation (1)
-
Cherry Canyon Formation (1)
-
Cisuralian
-
Artinskian (2)
-
Asselian (1)
-
Kungurian (6)
-
Sakmarian (1)
-
-
Leonardian
-
Bone Spring Limestone (3)
-
-
Wolfcampian
-
Hueco Limestone (1)
-
-
-
Lyons Sandstone (1)
-
Meade Peak Member (1)
-
Middle Permian (5)
-
Park City Formation (1)
-
Phosphoria Formation (1)
-
Retort Phosphatic Shale Member (1)
-
Rotliegendes (1)
-
Rustler Formation (1)
-
Unayzah Formation (1)
-
Upper Permian
-
Kazanian (1)
-
Lopingian
-
Changhsingian (1)
-
Wuchiapingian (1)
-
-
Permian-Triassic boundary (6)
-
Tatarian (1)
-
Zechstein (3)
-
-
Wellington Formation (1)
-
Werra Series (1)
-
Yates Formation (2)
-
Yeso Formation (1)
-
-
Petersburg Granite (2)
-
Pilot Shale (1)
-
Sauk Sequence (6)
-
Silurian
-
Bainbridge Formation (1)
-
Clinch Sandstone (1)
-
Lockport Formation (3)
-
Lower Silurian
-
Grimsby Sandstone (1)
-
Llandovery
-
Aeronian (1)
-
Rhuddanian (1)
-
Telychian (1)
-
-
Tuscarora Formation (12)
-
Wenlock
-
Homerian (1)
-
-
Whirlpool Sandstone (1)
-
-
Middle Silurian
-
Clinton Group (5)
-
Keefer Sandstone (2)
-
McKenzie Formation (3)
-
Roberts Mountains Formation (1)
-
Rochester Formation (3)
-
Rose Hill Formation (2)
-
-
Niagaran (7)
-
Upper Silurian
-
Bloomsburg Formation (2)
-
Cayugan
-
Tonoloway Limestone (4)
-
Williamsport Sandstone (1)
-
-
Ludlow (3)
-
Pridoli (2)
-
Salina Group (10)
-
-
-
Supai Formation (1)
-
Taiyuan Formation (1)
-
Talladega Group (2)
-
Tensleep Sandstone (1)
-
Tippecanoe Sequence (1)
-
upper Paleozoic
-
Antrim Shale (1)
-
Bakken Formation (7)
-
Dwyka Formation (1)
-
Kaskaskia Sequence (1)
-
Kiaman Superchron (2)
-
Shanxi Formation (2)
-
-
Wissahickon Formation (6)
-
Woodford Shale (8)
-
-
Phanerozoic (25)
-
Precambrian
-
Adirondack Anorthosite (1)
-
Animikie Group (3)
-
Archean
-
J-M Reef (1)
-
Mesoarchean (6)
-
Napier Complex (1)
-
Neoarchean (10)
-
Timiskaming Group (2)
-
Warrawoona Group (1)
-
Yellowknife Group (1)
-
-
Baltimore Gneiss (3)
-
Biwabik Iron Formation (3)
-
Brockman Iron Formation (2)
-
Catoctin Formation (5)
-
Central Rand Group (1)
-
Chuar Group (1)
-
Eocambrian (1)
-
Fortescue Group (1)
-
Gunflint Iron Formation (3)
-
Hadean (1)
-
Hamersley Group (2)
-
Hazel Formation (1)
-
Laramie anorthosite complex (1)
-
Lewisian Complex (2)
-
North Shore Volcanics (1)
-
Osler Series (1)
-
Pahrump Series (1)
-
Pongola Supergroup (1)
-
Purcell System (1)
-
Spuhler Peak Formation (1)
-
Stillwater Complex (1)
-
Stirling Quartzite (1)
-
Transvaal Supergroup (2)
-
upper Precambrian
-
Mahakoshal Group (1)
-
Proterozoic
-
Bambui Group (1)
-
Banxi Group (1)
-
Damara System (1)
-
Dedham Granodiorite (1)
-
Huronian (2)
-
Keweenawan (1)
-
Lewisian (1)
-
Malmani Subgroup (1)
-
Mesoproterozoic
-
Aldridge Formation (1)
-
Belt Supergroup (2)
-
Gawler Range Volcanics (1)
-
Laxfordian (1)
-
Roper Group (1)
-
Stenian (1)
-
-
Negaunee Iron Formation (1)
-
Neoproterozoic
-
Cryogenian (2)
-
Dengying Formation (3)
-
Doushantuo Formation (2)
-
Ediacaran
-
Wonoka Formation (1)
-
-
Lynchburg Formation (2)
-
Marinoan (1)
-
Moine Supergroup (1)
-
Moinian (2)
-
Tonian (2)
-
Torridonian (1)
-
Vendian (13)
-
Walden Creek Group (1)
-
-
Paleoproterozoic
-
Birimian (1)
-
Hemlock Formation (2)
-
Marquette Range Supergroup (2)
-
Thomson Formation (1)
-
Virginia Formation (3)
-
-
Pretoria Group (1)
-
Sinian
-
Dengying Formation (3)
-
Doushantuo Formation (2)
-
-
-
-
Ventersdorp Supergroup (2)
-
Witwatersrand Supergroup (3)
-
Wyman Formation (1)
-
-
-
igneous rocks
-
extrusive rocks (1)
-
igneous rocks
-
carbonatites (13)
-
feldspathoid rocks (1)
-
granophyre (4)
-
hypabyssal rocks (2)
-
kamafugite (1)
-
kimberlite (7)
-
peperite (1)
-
picrite (1)
-
plutonic rocks
-
anorthosite (14)
-
diabase
-
tholeiitic dolerite (1)
-
-
diorites
-
diorite porphyry (1)
-
plagiogranite (2)
-
quartz diorites (4)
-
tonalite (5)
-
trondhjemite (3)
-
-
gabbros
-
alkali gabbros
-
teschenite (1)
-
-
norite (2)
-
troctolite (5)
-
-
granites
-
alkali granites (4)
-
aplite (3)
-
A-type granites (6)
-
biotite granite (2)
-
charnockite (6)
-
granite porphyry (5)
-
granosyenite (1)
-
I-type granites (3)
-
leucogranite (9)
-
microgranite (2)
-
monzogranite (4)
-
rapakivi (2)
-
two-mica granite (1)
-
-
granodiorites (13)
-
lamproite (1)
-
lamprophyres
-
minette (1)
-
-
monzodiorite (2)
-
monzonites
-
mangerite (3)
-
-
pegmatite (35)
-
quartz monzonite (2)
-
quartzolite (1)
-
syenites
-
albitite (1)
-
alkali syenites (3)
-
granosyenite (1)
-
nepheline syenite
-
agpaite (1)
-
miaskite (1)
-
-
quartz syenite (1)
-
-
syenodiorite (1)
-
ultramafics
-
chromitite (3)
-
hornblendite (1)
-
peridotites
-
dunite (4)
-
garnet peridotite (1)
-
harzburgite (1)
-
lherzolite (2)
-
spinel peridotite (2)
-
-
pyroxenite
-
orthopyroxenite (2)
-
-
-
-
porphyry (7)
-
volcanic rocks
-
adakites (4)
-
andesites
-
andesite porphyry (1)
-
boninite (2)
-
-
basalts
-
alkali basalts
-
trachybasalts (1)
-
-
flood basalts (11)
-
mid-ocean ridge basalts (10)
-
ocean-island basalts (5)
-
shoshonite (2)
-
tholeiite (1)
-
tholeiitic basalt (3)
-
trap rocks (1)
-
-
dacites (4)
-
glasses
-
volcanic glass (1)
-
-
komatiite (2)
-
nephelinite
-
olivine nephelinite (1)
-
-
phonolites (1)
-
pyroclastics
-
ash-flow tuff (6)
-
hyaloclastite (3)
-
ignimbrite (6)
-
pumice (1)
-
rhyolite tuff (3)
-
tuff (22)
-
-
rhyodacites (2)
-
rhyolites
-
comendite (1)
-
-
trachyandesites (1)
-
trachytes (2)
-
-
-
ophiolite (17)
-
volcanic ash (10)
-
-
metamorphic rocks
-
K-bentonite (9)
-
metabentonite (2)
-
metamorphic rocks
-
amphibolites (17)
-
cataclasites (3)
-
eclogite (9)
-
gneisses
-
augen gneiss (1)
-
biotite gneiss (2)
-
granite gneiss (3)
-
orthogneiss (7)
-
paragneiss (12)
-
sillimanite gneiss (1)
-
tonalite gneiss (1)
-
-
granulites (6)
-
hornfels (4)
-
impactites
-
impact breccia
-
suevite (2)
-
-
-
jadeitite (1)
-
marbles (16)
-
metacarbonate rocks (2)
-
metaigneous rocks
-
metabasalt (9)
-
metabasite (5)
-
metadacite (1)
-
metadiorite (1)
-
metagabbro (6)
-
metagranite (6)
-
metaperidotite (1)
-
metarhyolite (2)
-
serpentinite (4)
-
-
metaplutonic rocks (3)
-
metasedimentary rocks
-
khondalite (1)
-
metachert (1)
-
metaconglomerate (1)
-
metapelite (17)
-
metasandstone (2)
-
paragneiss (12)
-
-
metasomatic rocks
-
fenite (1)
-
greisen (5)
-
propylite (1)
-
serpentinite (4)
-
skarn (20)
-
-
metavolcanic rocks (22)
-
migmatites
-
anatexite (1)
-
-
mylonites
-
pseudotachylite (6)
-
ultramylonite (2)
-
-
phyllites (3)
-
phyllonites (1)
-
quartzites
-
ferruginous quartzite (1)
-
-
schists
-
blueschist (3)
-
greenstone (5)
-
hornblende schist (1)
-
muscovite schist (1)
-
-
slates (1)
-
-
ophiolite (17)
-
turbidite (35)
-
-
meteorites
-
meteorites
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iron meteorites
-
octahedrite (1)
-
-
stony meteorites
-
chondrites
-
ordinary chondrites
-
H chondrites
-
Tieschitz Meteorite (1)
-
-
-
-
-
-
-
minerals
-
alloys
-
carbides
-
cohenite (1)
-
moissanite (1)
-
-
kamacite (1)
-
phosphides
-
schreibersite (1)
-
-
plessite (1)
-
-
antimonides (1)
-
arsenates
-
austinite (1)
-
conichalcite (1)
-
haidingerite (1)
-
pharmacolite (1)
-
scorodite (2)
-
-
arsenides
-
arsenopyrite (2)
-
-
arsenites (4)
-
bismuthides (2)
-
borates
-
ludwigite (1)
-
-
carbonates
-
ankerite (5)
-
aragonite (8)
-
azurite (1)
-
bastnaesite (4)
-
calcite (55)
-
cancrinite (2)
-
dolomite (28)
-
hydromagnesite (1)
-
magnesian calcite (2)
-
magnesite (2)
-
malachite (1)
-
parisite (1)
-
rhodochrosite (1)
-
siderite (3)
-
sphaerosiderite (1)
-
synchysite (1)
-
trona (1)
-
vaterite (1)
-
-
chromates (1)
-
halides
-
chlorides
-
eudialyte (1)
-
halite (9)
-
-
fluorides
-
bastnaesite (4)
-
clinohumite (1)
-
fluorite (3)
-
parisite (1)
-
synchysite (1)
-
topaz (2)
-
-
-
K-bentonite (9)
-
manganese minerals (2)
-
metabentonite (2)
-
minerals (5)
-
native elements
-
diamond
-
microdiamond (1)
-
-
graphite (3)
-
lonsdaleite (1)
-
-
nitrates (1)
-
onyx (1)
-
organic minerals (2)
-
oxides
-
akaganeite (1)
-
anatase (1)
-
armalcolite (1)
-
baddeleyite (2)
-
brannerite (1)
-
brucite (1)
-
cassiterite (4)
-
chrome spinel (4)
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chromite (6)
-
chrysoberyl (1)
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corundum (2)
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cryptomelane (1)
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diaspore (1)
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ferrihydrite (1)
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franklinite (2)
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gahnite (4)
-
germanates (1)
-
gibbsite (2)
-
goethite (6)
-
hematite (13)
-
hercynite (3)
-
hoegbomite (1)
-
hollandite (1)
-
hydroxides
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iron hydroxides (3)
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oxyhydroxides (2)
-
-
ilmenite (6)
-
iron oxides (14)
-
jacobsite (1)
-
limonite (1)
-
magnetite (17)
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manganese oxides (4)
-
martite (1)
-
niobates
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aeschynite (2)
-
betafite (1)
-
columbite (10)
-
euxenite (1)
-
fergusonite (2)
-
pyrochlore (4)
-
-
pitchblende (1)
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psilomelane (1)
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pyrolusite (1)
-
rutile (10)
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sapphire (1)
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specularite (1)
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spinel (5)
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spinel group (4)
-
tantalates
-
betafite (1)
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euxenite (1)
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microlite (1)
-
tantalite (5)
-
-
thorianite (2)
-
titanium oxides (1)
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titanomagnetite (1)
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todorokite (1)
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ulvospinel (1)
-
uraninite (4)
-
vernadite (1)
-
-
phosphates
-
apatite (51)
-
britholite (2)
-
chlorapatite (3)
-
fluorapatite (10)
-
francolite (1)
-
hydroxylapatite (1)
-
lithiophilite (1)
-
monazite (44)
-
montebrasite (2)
-
torbernite (1)
-
triphylite (2)
-
xenotime (7)
-
-
platinum minerals (3)
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selenides (1)
-
silicates
-
aluminosilicates (1)
-
asbestos (2)
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borosilicates (2)
-
chain silicates
-
amphibole group
-
clinoamphibole
-
actinolite (1)
-
arfvedsonite (1)
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grunerite (1)
-
hastingsite (1)
-
hornblende (18)
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nephrite (1)
-
pargasite (1)
-
richterite (1)
-
tremolite (2)
-
tschermakite (2)
-
-
orthoamphibole
-
holmquistite (1)
-
-
-
astrophyllite (1)
-
jade (1)
-
prehnite (1)
-
pyroxene group
-
clinopyroxene
-
aegirine (1)
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augite (1)
-
diopside (1)
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hedenbergite (1)
-
jadeite (1)
-
omphacite (3)
-
spodumene (3)
-
-
orthopyroxene
-
hypersthene (1)
-
-
-
wollastonite group
-
pectolite (1)
-
wollastonite (1)
-
-
-
framework silicates
-
cancrinite (2)
-
feldspar group
-
alkali feldspar
-
adularia (7)
-
amazonite (1)
-
celsian (1)
-
K-feldspar (13)
-
orthoclase (1)
-
perthite (2)
-
sanidine (6)
-
-
antiperthite (1)
-
barium feldspar
-
celsian (1)
-
-
plagioclase
-
albite (5)
-
anorthite (1)
-
-
-
silica minerals
-
agate (2)
-
amethyst (2)
-
carnelian (2)
-
chalcedony (3)
-
chrysoprase (1)
-
coesite (4)
-
cristobalite (2)
-
jasper (1)
-
lechatelierite (1)
-
moganite (2)
-
opal
-
opal-A (2)
-
opal-CT (1)
-
-
quartz
-
alpha quartz (1)
-
smoky quartz (1)
-
-
tridymite (1)
-
-
sodalite group
-
helvite (2)
-
tugtupite (1)
-
-
zeolite group
-
erionite (2)
-
garronite (1)
-
gmelinite (2)
-
heulandite (1)
-
laumontite (1)
-
mesolite (1)
-
natrolite (1)
-
offretite (1)
-
-
-
orthosilicates
-
nesosilicates
-
britholite group
-
britholite (2)
-
-
clinohumite (1)
-
euclase (1)
-
garnet group
-
pyrope (1)
-
schorlomite (1)
-
-
kyanite (8)
-
mullite (1)
-
olivine group
-
forsterite (1)
-
olivine (9)
-
ringwoodite (1)
-
-
phenakite group
-
phenakite (1)
-
-
sillimanite (4)
-
titanite group
-
titanite (3)
-
-
topaz (2)
-
uranophane (1)
-
zircon group
-
coffinite (1)
-
thorite (6)
-
zircon (218)
-
-
-
sorosilicates
-
bertrandite (3)
-
chevkinite group
-
chevkinite (7)
-
perrierite (7)
-
-
epidote group
-
allanite (11)
-
epidote (4)
-
zoisite (1)
-
-
kornerupine (1)
-
melilite group
-
gehlenite (1)
-
-
prismatine (1)
-
thalenite (1)
-
vesuvianite (1)
-
-
-
ring silicates
-
beryl (11)
-
emerald (4)
-
eudialyte (1)
-
milarite group
-
roedderite (1)
-
-
tourmaline group
-
dravite (5)
-
elbaite (1)
-
foitite (3)
-
schorl (5)
-
uvite (1)
-
-
-
sheet silicates
-
chlorite group
-
chamosite (1)
-
chlorite (15)
-
-
clay minerals
-
allophane (1)
-
beidellite (1)
-
halloysite (1)
-
kaolinite (20)
-
montmorillonite (3)
-
nontronite (1)
-
smectite (17)
-
vermiculite (2)
-
-
illite (23)
-
margarite (1)
-
mica group
-
annite (1)
-
biotite (29)
-
celadonite (3)
-
glauconite (4)
-
lepidolite (2)
-
muscovite (21)
-
phengite (3)
-
phlogopite (8)
-
polylithionite (1)
-
-
palygorskite (1)
-
petalite (3)
-
sepiolite (1)
-
sericite (5)
-
serpentine group
-
antigorite (2)
-
chrysotile (1)
-
cronstedtite (1)
-
serpentine (1)
-
-
talc (2)
-
-
-
sulfates
-
alunite (5)
-
anhydrite (10)
-
barite (10)
-
celestine (4)
-
coquimbite (1)
-
gypsum (10)
-
jarosite (3)
-
natroalunite (1)
-
schwertmannite (1)
-
voltaite (1)
-
-
sulfides
-
acanthite (1)
-
alabandite (1)
-
arsenopyrite (2)
-
bismuthinite (1)
-
carrollite (1)
-
chalcocite (1)
-
chalcopyrite (7)
-
cinnabar (2)
-
cooperite (2)
-
copper sulfides (1)
-
galena (7)
-
greigite (1)
-
helvite (2)
-
iron sulfides (1)
-
laurite (1)
-
linnaeite (1)
-
molybdenite (4)
-
nickel sulfides (1)
-
orpiment (1)
-
pentlandite (1)
-
polydymite (1)
-
pyrite (28)
-
pyrrhotite (4)
-
realgar (2)
-
siegenite (1)
-
smythite (1)
-
sphalerite (9)
-
stibnite (6)
-
troilite (1)
-
violarite (1)
-
-
sulfosalts
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sulfantimonites
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pyrargyrite (1)
-
tetrahedrite (2)
-
-
sulfarsenites
-
tennantite (1)
-
-
sulfobismuthites
-
berryite (1)
-
gustavite (1)
-
matildite (1)
-
-
-
tellurides
-
altaite (1)
-
coloradoite (1)
-
hessite (1)
-
-
tungstates
-
ferberite (1)
-
scheelite (5)
-
wolframite (1)
-
-
uranium minerals (4)
-
vanadates
-
carnotite (1)
-
-
-
Primary terms
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absolute age (388)
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academic institutions (3)
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Africa
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East Africa
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Egypt
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Libya (1)
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Tunisia (2)
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Southern Africa
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South Africa
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West Africa
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Ghana
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Antarctica
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Asia
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associations (5)
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-
Logan Canyon Formation (1)
-
Lower Cretaceous
-
Albian (6)
-
Aptian
-
Shuaiba Formation (1)
-
-
Barremian (1)
-
Berriasian (3)
-
Bluesky Formation (2)
-
Cadomin Formation (2)
-
Cedar Mountain Formation (1)
-
Cloverly Formation (1)
-
Edwards Formation (3)
-
Georgetown Formation (1)
-
Glen Rose Formation (4)
-
Lakota Formation (1)
-
Mannville Group (3)
-
McMurray Formation (2)
-
Missisauga Formation (2)
-
Mowry Shale (2)
-
Neocomian (1)
-
Pearsall Formation (2)
-
Rodessa Formation (1)
-
Sligo Formation (2)
-
Spirit River Formation (1)
-
Torok Formation (1)
-
Travis Peak Formation (2)
-
Valanginian (1)
-
-
Mancos Shale (6)
-
Middle Cretaceous (6)
-
Nanushuk Group (2)
-
Natih Formation (3)
-
Potomac Group (6)
-
Upper Cretaceous
-
Bearpaw Formation (2)
-
Belle Fourche Shale (1)
-
Blackhawk Formation (3)
-
Buda Limestone (2)
-
Campanian
-
lower Campanian (1)
-
upper Campanian (2)
-
-
Cardium Formation (4)
-
Carlile Shale (2)
-
Castlegate Sandstone (2)
-
Cenomanian
-
lower Cenomanian (1)
-
-
Codell Sandstone Member (1)
-
Dawson Canyon Formation (1)
-
Eagle Sandstone (1)
-
Eutaw Formation (1)
-
Ferron Sandstone Member (8)
-
Fort Hays Limestone Member (1)
-
Fox Hills Formation (1)
-
Frontier Formation (2)
-
Fruitland Formation (5)
-
Greenhorn Limestone (2)
-
Gulfian
-
Aguja Formation (1)
-
Austin Chalk (3)
-
Austin Group (1)
-
Eagle Ford Formation (14)
-
Woodbine Formation (2)
-
-
Horseshoe Canyon Formation (3)
-
Judith River Formation (1)
-
Kirtland Shale (2)
-
K-T boundary (7)
-
La Luna Formation (1)
-
Ladd Formation (1)
-
Lewis Shale (3)
-
Maestrichtian
-
lower Maestrichtian (2)
-
upper Maestrichtian (1)
-
-
Mesaverde Group (10)
-
Middendorf Formation (2)
-
Moreno Formation (1)
-
Navesink Formation (3)
-
Niobrara Formation (5)
-
Ojo Alamo Sandstone (1)
-
Peedee Formation (1)
-
Pictured Cliffs Sandstone (2)
-
Pierre Shale (4)
-
Point Lookout Sandstone (1)
-
Rock Springs Formation (1)
-
Santonian (1)
-
Senonian (10)
-
Straight Cliffs Formation (2)
-
Tuolumne Intrusive Suite (3)
-
Turonian (13)
-
Tuscaloosa Formation (5)
-
Two Medicine Formation (1)
-
Wall Creek Member (1)
-
Williams Fork Formation (1)
-
-
Viking Formation (2)
-
Whitemud Formation (1)
-
-
Franciscan Complex (6)
-
Jurassic
-
Arapien Shale (1)
-
Bazhenov Formation (1)
-
Bonanza Group (1)
-
Carmel Formation (2)
-
Clarens Formation (1)
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Fernie Formation (1)
-
Heather Formation (1)
-
Kingak Shale (2)
-
Lower Jurassic
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Hettangian (1)
-
lower Liassic (2)
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Sinemurian (2)
-
Talkeetna Formation (1)
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Toarcian (1)
-
upper Liassic (1)
-
-
Mic Mac Formation (1)
-
Middle Jurassic
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Bajocian
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Ness Formation (1)
-
Tarbert Formation (1)
-
-
Bathonian (1)
-
Callovian (2)
-
-
Norphlet Formation (3)
-
Posidonia Shale (1)
-
Twin Creek Limestone (2)
-
Upper Jurassic
-
Buckner Formation (2)
-
Entrada Sandstone (1)
-
Haynesville Formation (2)
-
Kimmeridge Clay (2)
-
Naknek Formation (1)
-
Oxfordian (5)
-
Portlandian (2)
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Smackover Formation (2)
-
Stump Formation (1)
-
Sundance Formation (2)
-
Swift Formation (1)
-
Tithonian (5)
-
-
-
Kayenta Formation (1)
-
lower Mesozoic (4)
-
Mist Mountain Formation (1)
-
Moenave Formation (1)
-
Navajo Sandstone (4)
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Newark Supergroup (3)
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Statfjord Formation (1)
-
Triassic
-
Charlie Lake Formation (1)
-
Hawkesbury Sandstone (1)
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Liard Formation (1)
-
Lower Triassic
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Dinwoody Formation (1)
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Olenekian (1)
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Panchet Series (1)
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Permian-Triassic boundary (6)
-
-
Middle Triassic
-
Anisian (3)
-
Doig Formation (2)
-
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Moenkopi Formation (2)
-
Montney Formation (3)
-
Nicola Group (1)
-
Sherwood Sandstone (1)
-
Shublik Formation (3)
-
Takla Group (1)
-
Upper Triassic
-
Baldonnel Formation (1)
-
Carnian
-
Ischigualasto Formation (1)
-
-
Chinle Formation (3)
-
Dockum Group (1)
-
Mercia Mudstone (1)
-
Molteno Formation (1)
-
Norian (4)
-
Pardonet Formation (1)
-
Rhaetian
-
Penarth Group (1)
-
-
Xujiahe Formation (1)
-
Yanchang Formation (3)
-
-
-
upper Mesozoic (4)
-
Vaca Muerta Formation (2)
-
Wingate Sandstone (1)
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Yanshanian (2)
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metal ores
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aluminum ores (2)
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base metals (16)
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metals
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actinides
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protactinium
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Pa-231 (1)
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thorium
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Th-230 (1)
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uranium
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U-234 (1)
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U-238/Pb-204 (1)
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-
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alkali metals
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cesium
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Cs-137 (3)
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lithium
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Li-7/Li-6 (2)
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potassium (7)
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rubidium (3)
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sodium (8)
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alkaline earth metals
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barium (5)
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beryllium
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Be-10 (28)
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Be-10/Be-9 (2)
-
-
calcium
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Mg/Ca (3)
-
-
magnesium
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Mg/Ca (3)
-
-
radium
-
Ra-228/Ra-226 (1)
-
-
strontium
-
Sr-87/Sr-86 (52)
-
-
-
aluminum
-
Al-26 (13)
-
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antimony (6)
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arsenic (13)
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bismuth (3)
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cadmium (3)
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chromium (11)
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gallium (1)
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gold (4)
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hafnium
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Hf-177/Hf-176 (13)
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iron
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Fe-54 (1)
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Fe-56 (1)
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Fe-56/Fe-54 (1)
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ferric iron (7)
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ferrous iron (7)
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lead
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Pb-206/Pb-204 (24)
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Pb-207/Pb-204 (18)
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Pb-207/Pb-206 (6)
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Pb-208 (1)
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Pb-208/Pb-204 (12)
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Pb-208/Pb-206 (4)
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Pb-210 (6)
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U-238/Pb-204 (1)
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manganese (7)
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mercury (4)
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molybdenum (4)
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nickel
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Ni-60 (1)
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niobium (5)
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platinum group
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iridium (2)
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osmium
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Os-188/Os-187 (5)
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Re-187/Os-188 (1)
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palladium (1)
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palladium ores (2)
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platinum (3)
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platinum ores (14)
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rhodium (1)
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ruthenium (1)
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precious metals (4)
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rare earths
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cerium (10)
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europium (6)
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lanthanum (2)
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lutetium (1)
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neodymium
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Nd-144/Nd-143 (36)
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Sm-147/Nd-144 (7)
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samarium
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Sm-147/Nd-144 (7)
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scandium (1)
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ytterbium (2)
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yttrium (13)
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rhenium
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Re-187/Os-188 (1)
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silver (2)
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tantalum (4)
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thallium (1)
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tin (2)
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metamorphic rocks
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amphibolites (17)
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orthogneiss (7)
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granulites (6)
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impactites
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impact breccia
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suevite (2)
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jadeitite (1)
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metacarbonate rocks (2)
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metaplutonic rocks (3)
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metachert (1)
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metasomatic rocks
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greisen (5)
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skarn (20)
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metavolcanic rocks (22)
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migmatites
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anatexite (1)
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mylonites
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pseudotachylite (6)
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phyllites (3)
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phyllonites (1)
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quartzites
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ferruginous quartzite (1)
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schists
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blueschist (3)
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greenstone (5)
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hornblende schist (1)
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muscovite schist (1)
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slates (1)
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metamorphism (158)
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meteorites
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iron meteorites
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Tieschitz Meteorite (1)
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meteorology (5)
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Mexico
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Moon (1)
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nitrogen
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N-15/N-14 (7)
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noble gases
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argon
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Ar-38/Ar-36 (1)
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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-3 (1)
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He-4/He-3 (2)
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krypton (1)
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neon
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Ne-22/Ne-20 (1)
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radon
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Rn-222 (1)
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xenon (1)
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nodules (3)
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North America
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Appalachian Basin (115)
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Appalachians
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Valley and Ridge Province (49)
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Basin and Range Province
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Great Basin (18)
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Canadian Shield
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Grenville Province
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Central Gneiss Belt (1)
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Slave Province (3)
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Champlain Valley (2)
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Dakota Aquifer (1)
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Great Lakes region (6)
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Western Interior
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ocean circulation (6)
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Ocean Drilling Program
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Leg 104 (1)
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Leg 105
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ODP Site 645 (1)
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Leg 113
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ODP Site 690 (1)
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Leg 150 (1)
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Leg 150X (1)
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Leg 156
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ODP Site 948 (1)
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ODP Site 949 (1)
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Leg 159
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ODP Site 959 (1)
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Leg 160
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ODP Site 967 (1)
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Leg 164 (1)
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Leg 166
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ODP Site 1006 (1)
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Leg 169S (1)
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Leg 174AX
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Bass River Site (1)
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Leg 189
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ODP Site 1172 (1)
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ocean floors (31)
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ocean waves (7)
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Oceania
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oceanography (17)
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Northeast Pacific
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Southwest Pacific
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Paleozoic
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Upper Cambrian
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-
Furongian (5)
-
Galesville Sandstone (1)
-
Lamotte Sandstone (1)
-
Mount Simon Sandstone (6)
-
Potsdam Sandstone (4)
-
Steptoean (4)
-
-
-
Carboniferous
-
Amsden Formation (1)
-
Bartlesville Sand (1)
-
Benxi Formation (1)
-
Big Snowy Group (1)
-
Burbank Sand (1)
-
Jackfork Group (2)
-
Johns Valley Formation (1)
-
Lower Carboniferous
-
Asbian (3)
-
Dinantian (3)
-
-
Mabou Group (1)
-
Middle Carboniferous (1)
-
Mississippian
-
Barnett Shale (7)
-
Boone Formation (2)
-
Borden Group (2)
-
Chainman Shale (1)
-
Charles Formation (2)
-
Leadville Formation (1)
-
Lower Mississippian
-
Cuyahoga Formation (3)
-
Fort Payne Formation (4)
-
Kayak Shale (1)
-
Kekiktuk Conglomerate (1)
-
Kinderhookian (1)
-
Lake Valley Formation (1)
-
Lodgepole Formation (1)
-
Osagian
-
Burlington Limestone (2)
-
-
Pocono Formation (6)
-
Tournaisian (5)
-
-
Madison Group (7)
-
Middle Mississippian
-
Visean (3)
-
-
Price Formation (3)
-
Redwall Limestone (1)
-
Sunbury Shale (5)
-
Upper Mississippian
-
Chesterian
-
Imo Formation (1)
-
-
Fayetteville Formation (4)
-
Greenbrier Limestone (5)
-
Hartselle Sandstone (2)
-
Heath Formation (2)
-
Hinton Formation (1)
-
Mauch Chunk Formation (6)
-
Meramecian
-
Salem Limestone (3)
-
-
Parkwood Formation (1)
-
Pitkin Limestone (1)
-
Serpukhovian (3)
-
-
Windsor Group (3)
-
-
Namurian (2)
-
Pennsylvanian
-
Brazil Formation (1)
-
Conemaugh Group (7)
-
Cumberland Group (1)
-
Joggins Formation (2)
-
Lower Pennsylvanian
-
Bashkirian (1)
-
Caseyville Formation (1)
-
Haymond Formation (1)
-
Lee Formation (1)
-
Morrowan
-
Bloyd Formation (1)
-
-
New River Formation (2)
-
Pocahontas Formation (1)
-
-
Mary Lee Coal (1)
-
Middle Pennsylvanian
-
Allegheny Group (7)
-
Atokan
-
Atoka Formation (1)
-
-
Breathitt Formation (1)
-
Carbondale Formation (1)
-
Desmoinesian
-
Marmaton Group (1)
-
-
Kanawha Formation (2)
-
Moscovian (7)
-
Paradox Formation (2)
-
Staunton Formation (1)
-
Tradewater Formation (1)
-
-
Minturn Formation (1)
-
Monongahela Group (6)
-
Morien Group (1)
-
Morrow Formation (1)
-
Pittsburgh Coal (3)
-
Pottsville Group (6)
-
Saginaw Formation (1)
-
Strawn Series (3)
-
Upper Pennsylvanian
-
Ames Limestone (2)
-
Cisco Group (2)
-
Glenshaw Formation (2)
-
Gzhelian (4)
-
Holder Formation (1)
-
Kasimovian (2)
-
Missourian
-
Kansas City Group (1)
-
Lansing Group (1)
-
Stanton Formation (1)
-
Wann Formation (1)
-
-
Virgilian (2)
-
-
Watahomigi Formation (1)
-
-
Silesian (1)
-
Upper Carboniferous
-
Stephanian (3)
-
Westphalian (7)
-
-
Wahoo Limestone (1)
-
-
Catskill Formation (10)
-
Chattanooga Shale (8)
-
Deadwood Formation (4)
-
Devonian
-
Beaverhill Lake Group (2)
-
Genesee Group (1)
-
Gile Mountain Formation (1)
-
Guilmette Formation (2)
-
Heemskirk Granite (1)
-
Levis Shale (1)
-
Lower Devonian
-
Battery Point Formation (2)
-
Coeymans Formation (1)
-
Emsian (9)
-
Lochkovian (8)
-
Manlius Formation (2)
-
Oriskany Sandstone (17)
-
Pragian (4)
-
Shap Granite (1)
-
-
Middle Devonian
-
Cedar Valley Formation (1)
-
Detroit River Group (1)
-
Dundee Limestone (1)
-
Eifelian (8)
-
Elk Point Group (1)
-
Givetian (8)
-
Hamilton Group (11)
-
Jeffersonville Limestone (1)
-
Mahantango Formation (8)
-
Marcellus Shale (50)
-
Moscow Formation (3)
-
Onondaga Limestone (17)
-
Sylvania Formation (1)
-
Tioga Bentonite (4)
-
Tully Limestone (7)
-
-
Millboro Shale (3)
-
Old Red Sandstone (4)
-
Popovich Formation (1)
-
Ramparts Formation (1)
-
Slave Point Formation (1)
-
Swan Hills Formation (3)
-
Thirtyone Formation (1)
-
Upper Devonian
-
Brallier Shale (3)
-
Chemung Formation (5)
-
Cleveland Member (2)
-
Famennian
-
lower Famennian (1)
-
Wabamun Group (3)
-
-
Frasnian
-
Leduc Formation (1)
-
-
Hampshire Formation (7)
-
Huron Member (4)
-
Jefferson Group (2)
-
Kanayut Conglomerate (1)
-
Kellwasser event (2)
-
Ohio Shale (13)
-
Olentangy Shale (2)
-
Palliser Formation (3)
-
West Falls Formation (1)
-
-
Waterways Formation (3)
-
-
Dunkard Group (7)
-
Ellis Bay Formation (1)
-
Exshaw Formation (2)
-
Hanson Creek Formation (1)
-
Hartland Formation (1)
-
Helderberg Group (8)
-
Hunton Group (1)
-
Keyser Limestone (4)
-
Knox Group (12)
-
Lisburne Group (2)
-
lower Paleozoic
-
Ashe Formation (3)
-
Cape Phillips Formation (1)
-
Chopawamsic Formation (4)
-
Conococheague Formation (3)
-
Rose Run Sandstone (3)
-
Wilmington Complex (3)
-
-
Merrimack Group (1)
-
middle Paleozoic
-
Hillabee Chlorite Schist (2)
-
-
New Albany Shale (4)
-
Ordovician
-
Catoche Formation (1)
-
Chickamauga Group (1)
-
Eureka Quartzite (4)
-
Gualcamayo Formation (2)
-
Lexington Limestone (3)
-
Lower Ordovician
-
Arenigian (1)
-
Beekmantown Group (10)
-
El Paso Group (1)
-
Ellenburger Group (3)
-
Fillmore Formation (1)
-
Ibexian (4)
-
Mascot Dolomite (1)
-
Prairie du Chien Group (1)
-
Saint George Group (4)
-
Shakopee Formation (1)
-
Tremadocian (3)
-
-
Martinsburg Formation (5)
-
Middle Ordovician
-
Ammonoosuc Volcanics (1)
-
Black River Group (4)
-
Blackriverian (1)
-
Bromide Formation (3)
-
Champlainian (1)
-
Chazy Group (2)
-
Chazyan (4)
-
Darriwilian (4)
-
Deicke Bentonite Bed (3)
-
Galena Dolomite (1)
-
Lenoir Limestone (1)
-
Llanvirnian (1)
-
Millbrig Bentonite Bed (4)
-
Normanskill Formation (1)
-
Platteville Formation (1)
-
Saint Peter Sandstone (1)
-
Simpson Group (2)
-
Table Head Group (2)
-
Whiterockian (4)
-
-
Montoya Group (2)
-
Pogonip Group (2)
-
Trenton Group (18)
-
Upper Ordovician
-
Ashgillian (2)
-
Bighorn Dolomite (3)
-
Caradocian (7)
-
Cincinnatian
-
Maysvillian (2)
-
Richmondian (2)
-
-
Edenian (1)
-
Fairview Formation (2)
-
Hirnantian (5)
-
Juniata Formation (3)
-
Katian (10)
-
Kope Formation (6)
-
Lorraine Group (1)
-
Maquoketa Formation (5)
-
Mohawkian (6)
-
Red River Formation (1)
-
Reedsville Formation (2)
-
Sandbian (6)
-
Trentonian (9)
-
Wufeng Formation (2)
-
-
Utica Shale (15)
-
Valmy Formation (2)
-
Viola Limestone (3)
-
-
Paganzo Group (1)
-
Permian
-
Castile Formation (2)
-
Chase Group (1)
-
Cutler Formation (2)
-
Ecca Group (3)
-
Echooka Formation (1)
-
Guadalupian
-
Bell Canyon Formation (2)
-
Brushy Canyon Formation (1)
-
Capitanian (2)
-
Cherry Canyon Formation (1)
-
Delaware Mountain Group (1)
-
Grayburg Formation (2)
-
Roadian (5)
-
Tansill Formation (1)
-
Wordian (2)
-
-
Kaibab Formation (1)
-
Khuff Formation (2)
-
Longtan Formation (3)
-
Lower Permian
-
Al Khlata Formation (1)
-
Cherry Canyon Formation (1)
-
Cisuralian
-
Artinskian (2)
-
Asselian (1)
-
Kungurian (6)
-
Sakmarian (1)
-
-
Leonardian
-
Bone Spring Limestone (3)
-
-
Wolfcampian
-
Hueco Limestone (1)
-
-
-
Lyons Sandstone (1)
-
Meade Peak Member (1)
-
Middle Permian (5)
-
Park City Formation (1)
-
Phosphoria Formation (1)
-
Retort Phosphatic Shale Member (1)
-
Rotliegendes (1)
-
Rustler Formation (1)
-
Unayzah Formation (1)
-
Upper Permian
-
Kazanian (1)
-
Lopingian
-
Changhsingian (1)
-
Wuchiapingian (1)
-
-
Permian-Triassic boundary (6)
-
Tatarian (1)
-
Zechstein (3)
-
-
Wellington Formation (1)
-
Werra Series (1)
-
Yates Formation (2)
-
Yeso Formation (1)
-
-
Petersburg Granite (2)
-
Pilot Shale (1)
-
Sauk Sequence (6)
-
Silurian
-
Bainbridge Formation (1)
-
Clinch Sandstone (1)
-
Lockport Formation (3)
-
Lower Silurian
-
Grimsby Sandstone (1)
-
Llandovery
-
Aeronian (1)
-
Rhuddanian (1)
-
Telychian (1)
-
-
Tuscarora Formation (12)
-
Wenlock
-
Homerian (1)
-
-
Whirlpool Sandstone (1)
-
-
Middle Silurian
-
Clinton Group (5)
-
Keefer Sandstone (2)
-
McKenzie Formation (3)
-
Roberts Mountains Formation (1)
-
Rochester Formation (3)
-
Rose Hill Formation (2)
-
-
Niagaran (7)
-
Upper Silurian
-
Bloomsburg Formation (2)
-
Cayugan
-
Tonoloway Limestone (4)
-
Williamsport Sandstone (1)
-
-
Ludlow (3)
-
Pridoli (2)
-
Salina Group (10)
-
-
-
Supai Formation (1)
-
Taiyuan Formation (1)
-
Talladega Group (2)
-
Tensleep Sandstone (1)
-
Tippecanoe Sequence (1)
-
upper Paleozoic
-
Antrim Shale (1)
-
Bakken Formation (7)
-
Dwyka Formation (1)
-
Kaskaskia Sequence (1)
-
Kiaman Superchron (2)
-
Shanxi Formation (2)
-
-
Wissahickon Formation (6)
-
Woodford Shale (8)
-
-
palynology (4)
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palynomorphs
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acritarchs (11)
-
Chitinozoa (1)
-
Dinoflagellata
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Deflandrea (1)
-
-
megaspores (6)
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miospores
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pollen (44)
-
-
-
paragenesis (78)
-
permafrost (6)
-
petroleum
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natural gas
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coalbed methane (10)
-
shale gas (26)
-
-
shale oil (7)
-
-
petrology (49)
-
Phanerozoic (25)
-
phase equilibria (18)
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phosphate deposits (6)
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phosphorus (4)
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placers
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beach placers (1)
-
-
Plantae
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algae
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calcareous algae (3)
-
Chlorophyta
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Chlorophyceae
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Codiaceae
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Halimeda (1)
-
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Dasycladaceae (1)
-
-
-
Coccolithophoraceae (2)
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diatoms (11)
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Epiphyton (1)
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nannofossils (10)
-
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Bryophyta (1)
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Pteridophyta
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Filicopsida
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Archaeopteris (2)
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Azolla (1)
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Pecopteris (2)
-
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Lycopsida
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Lepidodendron (1)
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Lycopodium (2)
-
-
Sphenopsida (4)
-
-
Spermatophyta
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Angiospermae
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Dicotyledoneae
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Alnus (1)
-
Myrtaceae
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Eucalyptus (1)
-
-
Nothofagus (2)
-
Rosidae (1)
-
-
-
Gymnospermae
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Coniferales
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Cupressaceae (1)
-
Pinaceae
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Pinus (1)
-
-
-
Cordaitales
-
Cordaites (2)
-
-
Ginkgoales
-
Ginkgo (1)
-
-
Glossopteridales
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Gangamopteris (1)
-
-
Pteridospermae (3)
-
-
-
-
plate tectonics (225)
-
pollution (68)
-
Precambrian
-
Adirondack Anorthosite (1)
-
Animikie Group (3)
-
Archean
-
J-M Reef (1)
-
Mesoarchean (6)
-
Napier Complex (1)
-
Neoarchean (10)
-
Timiskaming Group (2)
-
Warrawoona Group (1)
-
Yellowknife Group (1)
-
-
Baltimore Gneiss (3)
-
Biwabik Iron Formation (3)
-
Brockman Iron Formation (2)
-
Catoctin Formation (5)
-
Central Rand Group (1)
-
Chuar Group (1)
-
Eocambrian (1)
-
Fortescue Group (1)
-
Gunflint Iron Formation (3)
-
Hadean (1)
-
Hamersley Group (2)
-
Hazel Formation (1)
-
Laramie anorthosite complex (1)
-
Lewisian Complex (2)
-
North Shore Volcanics (1)
-
Osler Series (1)
-
Pahrump Series (1)
-
Pongola Supergroup (1)
-
Purcell System (1)
-
Spuhler Peak Formation (1)
-
Stillwater Complex (1)
-
Stirling Quartzite (1)
-
Transvaal Supergroup (2)
-
upper Precambrian
-
Mahakoshal Group (1)
-
Proterozoic
-
Bambui Group (1)
-
Banxi Group (1)
-
Damara System (1)
-
Dedham Granodiorite (1)
-
Huronian (2)
-
Keweenawan (1)
-
Lewisian (1)
-
Malmani Subgroup (1)
-
Mesoproterozoic
-
Aldridge Formation (1)
-
Belt Supergroup (2)
-
Gawler Range Volcanics (1)
-
Laxfordian (1)
-
Roper Group (1)
-
Stenian (1)
-
-
Negaunee Iron Formation (1)
-
Neoproterozoic
-
Cryogenian (2)
-
Dengying Formation (3)
-
Doushantuo Formation (2)
-
Ediacaran
-
Wonoka Formation (1)
-
-
Lynchburg Formation (2)
-
Marinoan (1)
-
Moine Supergroup (1)
-
Moinian (2)
-
Tonian (2)
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Torridonian (1)
-
Vendian (13)
-
Walden Creek Group (1)
-
-
Paleoproterozoic
-
Birimian (1)
-
Hemlock Formation (2)
-
Marquette Range Supergroup (2)
-
Thomson Formation (1)
-
Virginia Formation (3)
-
-
Pretoria Group (1)
-
Sinian
-
Dengying Formation (3)
-
Doushantuo Formation (2)
-
-
-
-
Ventersdorp Supergroup (2)
-
Witwatersrand Supergroup (3)
-
Wyman Formation (1)
-
-
problematic fossils
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problematic microfossils (2)
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Pterobranchia (2)
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quartz crystal (1)
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reclamation (10)
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Red Sea region (1)
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remote sensing (62)
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roads (7)
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sea water (17)
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sea-floor spreading (9)
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sea-level changes (200)
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sedimentary petrology (68)
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bauxite (4)
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carbonate rocks
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boundstone (3)
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chalk (5)
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dolostone (47)
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grainstone (25)
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limestone
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calcarenite (4)
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coquina (1)
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micrite (3)
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microbialite (9)
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packstone (16)
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rudstone (1)
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travertine (8)
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wackestone (11)
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chemically precipitated rocks
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chert
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jasperoid (1)
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duricrust (1)
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evaporites
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salt (9)
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flint (1)
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iron formations
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banded iron formations (9)
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ironstone (1)
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phosphate rocks (4)
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silcrete (1)
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siliceous sinter (1)
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tufa (5)
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clastic rocks
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arenite
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litharenite (1)
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quartz arenite (6)
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argillite (3)
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arkose (2)
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bentonite (14)
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black shale (48)
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claystone (8)
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conglomerate
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quartz-pebble conglomerate (2)
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diamictite (9)
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diatomite (2)
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eolianite (2)
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fanglomerate (2)
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graywacke (1)
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marl (11)
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mudstone (92)
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orthoquartzite (3)
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porcellanite (2)
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red beds (19)
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sandstone (232)
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subarkose (2)
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tonstein (1)
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coal
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anthracite (1)
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lignite (3)
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gas shale (9)
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oil shale (8)
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sedimentary structures
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banks (2)
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sand (50)
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silt (8)
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marine sediments (28)
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peat (15)
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South America
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