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Tertiary
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Kellwasser event (2)
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Honaker Trail Formation (1)
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Permian
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Upper Permian
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Woodford Shale (1)
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Primary terms
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carbon
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Tertiary
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K-T boundary (2)
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Niobrara Formation (1)
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Turonian (1)
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Jurassic
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Middle Triassic
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Doig Formation (1)
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Montney Formation (1)
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Vaca Muerta Formation (1)
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Sr-85 (1)
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Ocean Drilling Program
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Leg 154
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ODP Site 926 (1)
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ocean floors (7)
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Pacific Ocean
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Paleozoic
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Devonian
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Shap Granite (1)
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Upper Devonian
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lower Famennian (1)
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Kellwasser event (2)
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Honaker Trail Formation (1)
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Ordovician
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Middle Ordovician
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Galena Dolomite (1)
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Permian
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Upper Permian
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Permian-Triassic boundary (3)
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Woodford Shale (1)
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Plantae
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plate tectonics (6)
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Precambrian
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Hamersley Group (2)
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Idaho Springs Formation (1)
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upper Precambrian
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Proterozoic
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Portage Lake Lava Series (1)
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Paleoproterozoic
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chemically precipit
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