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![]() Date: 2002-10-07 23:03:50Geologic time scale Climate history Ice ages Proterozoic Snowball Earth Marinoan glaciation Neoproterozoic Quaternary glaciation Paleoclimatology Historical geology Geology Glaciology | Source URL: www.gps.caltech.eduDownload Document from Source WebsiteFile Size: 810,23 KBShare Document on Facebook |