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Effects of Past Global Change on Life (1995) / Chapter Skim
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Pages 90-90

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From page 90...
... In view of this information, the sudden, nearcomplete mass extinction observed in deep-sea sections reflects artificial truncation of species ranges due to a hiatus as illustrated here for DSDP Site 528. Moreover, the abrupt changes in geochemical tracers (iridium, shocked quartz, soot, ARC, CaCO3, total organic carbon)
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Key Terms

  • mass extinction
  • species extinctions
  • planktic foraminiferal
  • planktic foraminifera
  • tertiary species

  • basal tertiary
  • cretaceous survivors
  • dsdp site
  • organic carbon
  • environmental changes

  • foraminiferal species
  • extinction pattern


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