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Showing 261 - 280 results of 3,204 for search '"Permian"', query time: 0.60s Refine Results
  1. 261
    ...-Permian bed at Graphite Peak in Antarctica. The Ni/Fe, Co/Ni, and P/Fe ratios in metal grains; the Fe/Mg...
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  2. 262
    ... is proposed for the Carboniferous and Permian sequences of Spitsbergen and Bjørnøya, the important Arctic...
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    Article in Journal/Newspaper
  3. 263
    ...Recovery from the devastating Permian–Triassic mass extinction about 252 million years ago...
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  4. 264
    by O'Brien, Philip Edward
    Published 2005
    Subjects: ...Permian stratigraphic geology...
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    Doctoral or Postdoctoral Thesis
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