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Effects of Past Global Change on Life (1995) / Chapter Skim
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Pages 103-104

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From page 103...
... presented evidence that the Paleocene ocean-atmosphere system was indeed associated with higher levels of CO2 compared to the present time. However, on the basis of the same data it appears that the extinction interval was actually associated with lower oceanic CO2, not higher.
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From page 104...
... This did not seem to be the case in the tropics. The character of the oxygen isotopic changes associated with the mass extinction indicates a temporary switch to almost total dominance of warm saline deep water and associated interruption in the production of deep waters at high latitudes (Figure 5.41.
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Key Terms

  • extinction interval
  • mass extinction
  • faunal turnover
  • deep waters
  • mixed layer

  • oxygen isotopic
  • environmental changes
  • surface water
  • extinction event
  • isotopic excursion

  • antarctic ocean


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