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Carnivora
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Primates
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Proboscidea
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Reptilia
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Lepidosauria
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Squamata (1)
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coprolites (3)
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Graptolithina
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Invertebrata
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Podocopida
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Insecta (2)
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Trilobitomorpha
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Brachiopoda
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Articulata
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Inarticulata (1)
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Echinodermata
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Mollusca
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Gastropoda
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Porifera
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Silicoflagellata (1)
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Vermes (5)
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Plantae
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upper Quaternary (8)
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Neogene
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Pliocene
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Paleogene
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Chadron Formation (1)
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Eocene
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Annot Sandstone (1)
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upper Eocene (5)
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Flagstaff Formation (1)
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lower Paleogene (2)
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Oligocene
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Brule Formation (1)
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Paleocene
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lower Paleocene
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K-T boundary (6)
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middle Paleocene
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Selandian (1)
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Tongue River Member (1)
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upper Paleocene
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Thanetian (1)
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White River Group (2)
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upper Cenozoic (5)
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Lake Bonneville (1)
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Laurentide ice sheet (1)
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Mesozoic
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Cretaceous
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Comanchean
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Fredericksburg Group (1)
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Dakota Formation (1)
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Graneros Shale (1)
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Lower Cretaceous
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Burro Canyon Formation (1)
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Cedar Mountain Formation (1)
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Fredericksburg Group (1)
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Muderong Shale (1)
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Mancos Shale (2)
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Upper Cretaceous
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Cenomanian (1)
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Ferron Sandstone Member (1)
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Greenhorn Limestone (1)
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Gulfian
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Eagle Ford Formation (1)
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Hell Creek Formation (1)
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K-T boundary (6)
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Mesaverde Group (1)
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Pictured Cliffs Sandstone (2)
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Tuolumne Intrusive Suite (1)
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Turonian (1)
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Franciscan Complex (3)
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Jurassic
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Birkhead Formation (1)
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Carmel Formation (1)
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Coast Range Ophiolite (1)
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Middle Jurassic
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Summerville Formation (1)
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Smartville Complex (1)
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Upper Jurassic
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Entrada Sandstone (1)
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Morrison Formation (1)
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Smackover Formation (1)
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lower Mesozoic (1)
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Navajo Sandstone (1)
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Triassic
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Lower Triassic
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Permian-Triassic boundary (1)
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Middle Triassic
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Anisian (1)
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Moenkopi Formation (2)
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Upper Triassic
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Chinle Formation (1)
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Norian (1)
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Wingate Sandstone (1)
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Paleozoic
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Bird Spring Formation (1)
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Cambrian
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Upper Cambrian (2)
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Carboniferous
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Lower Carboniferous
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Upper Mississippian
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Meramecian
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Sainte Genevieve Limestone (1)
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-
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Pennsylvanian
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Middle Pennsylvanian
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Atokan
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Atoka Formation (1)
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Paradox Formation (1)
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Morrow Formation (1)
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Upper Pennsylvanian
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Canyon Group (1)
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Upper Carboniferous (1)
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Devonian
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Middle Devonian
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Eifelian (1)
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Marcellus Shale (1)
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Old Red Sandstone (1)
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Upper Devonian
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Duperow Formation (1)
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Frasnian (1)
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Nisku Formation (1)
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Ellis Bay Formation (1)
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Honaker Trail Formation (1)
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Hunton Group (1)
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Keyser Limestone (1)
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lower Paleozoic (1)
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Ordovician
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Lower Ordovician
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Beekmantown Group (1)
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Middle Ordovician
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Deicke Bentonite Bed (1)
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Millbrig Bentonite Bed (1)
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Trenton Group (2)
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Upper Ordovician
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Ashgillian (1)
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Maquoketa Formation (1)
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Red River Formation (2)
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Trentonian (2)
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-
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Permian
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Guadalupian
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Brushy Canyon Formation (1)
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Capitan Formation (2)
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Kaibab Formation (1)
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Lower Permian
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Leonardian
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Clear Fork Group (1)
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-
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Rotliegendes (1)
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Upper Permian
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Permian-Triassic boundary (1)
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-
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Road River Formation (1)
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Sauk Sequence (1)
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Silurian
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Lower Silurian (1)
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Upper Silurian
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Pridoli (1)
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Salina Group (1)
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-
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Supai Formation (1)
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upper Paleozoic (5)
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Phanerozoic (24)
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Precambrian
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Archean (13)
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Hadean (1)
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Stillwater Complex (1)
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upper Precambrian
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Proterozoic
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Lewisian (1)
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Mesoproterozoic
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Belt Supergroup (1)
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Neoproterozoic
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Ediacaran (1)
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Torridonian (1)
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Paleoproterozoic (6)
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Ventersdorp Supergroup (1)
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igneous rocks
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extrusive rocks (1)
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porphyry (3)
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volcanic rocks
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pumice (2)
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rhyolites (1)
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ophiolite (6)
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eclogite (1)
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blueschist (3)
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ophiolite (6)
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halides (1)
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hydrates (2)
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K-bentonite (1)
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minerals (19)
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oxides
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hydroxides (1)
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iron oxides (1)
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pitchblende (1)
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phosphates (1)
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silicates
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asbestos (1)
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chain silicates (1)
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framework silicates
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feldspar group
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plagioclase (1)
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scapolite group
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scapolite (1)
-
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silica minerals
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quartz (2)
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-
-
orthosilicates
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nesosilicates
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zircon group
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zircon (2)
-
-
-
-
ring silicates (1)
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sheet silicates
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chlorite group
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chlorite (1)
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clay minerals
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dickite (1)
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kaolinite (1)
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montmorillonite (1)
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nacrite (1)
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nontronite (1)
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smectite (1)
-
-
illite (1)
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mica group
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glauconite (1)
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-
serpentine group
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chrysotile (1)
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serpentine (1)
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-
-
-
sulfates
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anhydrite (1)
-
gypsum (1)
-
-
sulfides
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pyrite (1)
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-
tellurides
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calaverite (1)
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hessite (1)
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sylvanite (1)
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-
uranium minerals (1)
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-
Primary terms
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absolute age (17)
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Africa
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East Africa
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Southern Africa
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South Africa
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West Africa
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Antarctica
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Asia
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associations (20)
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South Atlantic
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Atlantic region (5)
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atmosphere (2)
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Australasia
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Australia
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Victoria Australia
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Western Australia
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New Zealand
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bibliography (70)
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biogeography (17)
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biography (21)
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Canada
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Arctic Archipelago (3)
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Eastern Canada
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Maritime Provinces
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New Brunswick
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Newfoundland and Labrador
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Labrador
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Newfoundland (3)
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Ontario
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Timiskaming District Ontario
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Quebec
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Abitibi County Quebec
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Nunavut
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Queen Elizabeth Islands
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Western Canada
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Alberta
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Elmworth Field (1)
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British Columbia
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Canadian Cordillera (2)
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Manitoba (2)
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Northwest Territories
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Yukon Territory (1)
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carbon
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C-13/C-12 (3)
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C-14 (4)
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organic carbon (2)
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Caribbean region
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West Indies
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Antilles
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Greater Antilles
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Cuba (1)
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Puerto Rico (3)
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Lesser Antilles
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Barbados (3)
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Martinique
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Montserrat Island
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Soufriere Hills (1)
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Soufriere (2)
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Trinidad and Tobago
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Virgin Islands (1)
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Bahamas (2)
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Caribbean Mountain Range (1)
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Caspian Sea (2)
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catalogs (7)
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Cenozoic
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Quaternary
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Holocene
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upper Holocene (2)
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Pleistocene
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Lake Lahontan (1)
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upper Quaternary (8)
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Stone Age
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Paleolithic (1)
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Tertiary
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Arikaree Group (2)
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Florissant Lake Beds (1)
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lower Tertiary (3)
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Neogene
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Miocene
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Columbia River Basalt Group (2)
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middle Miocene (1)
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Pliocene
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Cimmerian (2)
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upper Pliocene (1)
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Paleogene
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Chadron Formation (1)
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Eocene
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Annot Sandstone (1)
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Golden Valley Formation (1)
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lower Eocene (2)
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upper Eocene (5)
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Flagstaff Formation (1)
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lower Paleogene (2)
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Oligocene
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Brule Formation (1)
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Paleocene
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lower Paleocene
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K-T boundary (6)
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middle Paleocene
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Selandian (1)
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Tongue River Member (1)
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upper Paleocene
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Thanetian (1)
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White River Group (2)
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Wilcox Group (1)
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upper Cenozoic (5)
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Central America
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Belize (2)
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Costa Rica
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Poas (1)
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El Salvador (2)
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Panama (3)
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ceramic materials (1)
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chemical analysis (4)
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Chordata
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Vertebrata
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Pisces
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Chondrichthyes (1)
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Tetrapoda
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Mammalia
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Multituberculata (1)
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Theria
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Eutheria
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Artiodactyla
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Ruminantia
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Bovidae (1)
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Tylopoda
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Camelidae (1)
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Carnivora
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Fissipeda (1)
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Perissodactyla
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Hippomorpha
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Equidae
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Equus (1)
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Primates
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Hominidae
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Homo
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Homo erectus (1)
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Proboscidea
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Elephantoidea (1)
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Reptilia
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Diapsida
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Archosauria
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dinosaurs (3)
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Lepidosauria
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Squamata (1)
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clay mineralogy (18)
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climate change (16)
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coal deposits (4)
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conservation (7)
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construction materials
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