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![]() Date: 2009-03-04 10:49:53Planetary science Radiometric dating Argon–argon dating Large igneous provinces Triassic Mean square weighted deviation Siberian Traps Permian–Triassic extinction event Extinction event Geology Geologic time scale Phanerozoic | Source URL: www.le.ac.ukDownload Document from Source WebsiteFile Size: 1,47 MBShare Document on Facebook |