An extraterrestrial impact at the Permian-Triassic boundary?
Farley
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Division of Geological and, Planetary Sciences, MS 170-25, California Institute of Technology, Pasadena, CA 91125, USA. farley@gps.caltech.edu
Mukhopadhyay
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D001128:Argon / Q000032:analysis; D002244:Carbon / Q000032:analysis*; D002681:China; D019015:Geologic Sediments / Q000737:chemistry*; D006371:Helium / Q000032:analysis*; D007554:Isotopes; D019110:Meteoroids; D010163:Paleontology
D007554:Isotopes; D006371:Helium; D001128:Argon; D002244:Carbon