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Date: 2006-01-09 17:14:11 Isotopes Proterozoic Geochemistry Geologic time scale Bioindicators Ediacaran Paleoclimatology Isotopic signature Isotopes of carbon Chemistry Historical geology Geology		Add to Reading List Source URL: www.geol.umd.edu Download Document from Source Website File Size: 1,86 MB Share Document on Facebook

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