Anoxia as a cause of the Permian/Triassic mass extinction : facies evidence from northern Italy and the western United States

Volume: 93, Pages: 21 - 46
Published: May 1, 1992
Abstract
Facies, faunal and geochemical evidence from the Permian/Triassic boundary sediments of the Dolomites and Idaho indicates a major anoxic event in the earliest Triassic. In both regions, the basal beds consist of finely laminated micrites with common syngenetic pyrite. The only fauna consists of occasional bedding plane assemblages of Lingula or Clacaria, a typical lower dysaerobic assemblage. This is a level where previous studies have shown a...
Paper Details
Title
Anoxia as a cause of the Permian/Triassic mass extinction : facies evidence from northern Italy and the western United States
Published Date
May 1, 1992
Volume
93
Pages
21 - 46
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