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calcium
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Ca-44/Ca-40 (1)
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magnesium (1)
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aluminum
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iron
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helium
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oxygen
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O-18/O-16 (3)
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phosphorus
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sulfur
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trace metals (2)
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Chordata
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Vertebrata
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Tetrapoda
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Mammalia
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Invertebrata
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Podocopida (1)
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Trilobitomorpha
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Articulata
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Echinodermata
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Crinozoa
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Echinozoa
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Mollusca
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Bivalvia (2)
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Cephalopoda
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Gastropoda
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Tentaculitida
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Porifera (2)
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Protista
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Foraminifera
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Fusulinina
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Fusulinidae (1)
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microfossils
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Conodonta
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Hindeodus (1)
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palynomorphs
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Plantae
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Quaternary
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upper Holocene
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Roman period (1)
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Pleistocene
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upper Pleistocene
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upper Quaternary (1)
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Tertiary
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Neogene
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Miocene (3)
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Pliocene (2)
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Paleogene
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Eocene
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middle Eocene (1)
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Oligocene
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Frio Formation (1)
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Paleocene
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lower Paleocene (1)
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White River Group (1)
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Mesozoic
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Cretaceous
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Comanchean
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Trinity Group (1)
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Lower Cretaceous
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Burro Canyon Formation (1)
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Upper Cretaceous
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Great Valley Sequence (1)
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Jurassic
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Upper Jurassic
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Swift Formation (1)
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Navajo Sandstone (1)
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Triassic
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upper Mesozoic (1)
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Paleozoic
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Cambrian
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Upper Cambrian
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Mount Simon Sandstone (2)
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Carboniferous
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Amsden Formation (1)
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Mississippian
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Barnett Shale (3)
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Boone Formation (1)
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Lower Mississippian
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Lake Valley Formation (2)
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Osagian
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Burlington Limestone (2)
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Madison Group (1)
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Middle Mississippian
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Visean
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upper Visean (1)
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Upper Mississippian
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Bangor Limestone (1)
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Chesterian
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Aux Vases Sandstone (1)
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Golconda Formation (1)
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Imo Formation (1)
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Renault Formation (1)
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Fayetteville Formation (1)
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Greenbrier Limestone (2)
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Hartselle Sandstone (3)
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Heath Formation (3)
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Meramecian
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Sainte Genevieve Limestone (1)
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Salem Limestone (1)
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Parkwood Formation (2)
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Pitkin Limestone (1)
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Serpukhovian (5)
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Valmeyeran (1)
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Windsor Group (1)
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Pennsylvanian
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Joggins Formation (1)
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Lower Pennsylvanian
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Morrowan (1)
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Middle Pennsylvanian
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Desmoinesian
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Cherokee Group (1)
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Moscovian (1)
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Paradox Formation (1)
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Upper Pennsylvanian (1)
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Watahomigi Formation (1)
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Springer Formation (1)
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Devonian
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Middle Devonian
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Givetian (1)
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Marcellus Shale (1)
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Upper Devonian (2)
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Honaker Trail Formation (1)
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Knox Group (1)
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New Albany Shale (1)
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Ordovician
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Chickamauga Group (1)
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Middle Ordovician
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Saint Peter Sandstone (1)
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Trenton Group (2)
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Upper Ordovician
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Hirnantian (1)
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Katian (1)
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Trentonian (2)
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Permian
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Lower Permian
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Leonardian (1)
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Silurian
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Lower Silurian
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upper Paleozoic
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