Secular Distribution of Biogenic Silica through the Phanerozoic: Comparison of Silica‐Replaced Fossils and Bedded Cherts at the Series Level

  title={Secular Distribution of Biogenic Silica through the Phanerozoic: Comparison of Silica‐Replaced Fossils and Bedded Cherts at the Series Level},
  author={David L. Kidder and Douglas H. Erwin},
  journal={The Journal of Geology},
  pages={509 - 522}
  • D. L. Kidder, D. Erwin
  • Published 1 July 2001
  • Geography, Environmental Science, Geology
  • The Journal of Geology
The modern marine silica cycle is dominated by silica‐secreting phytoplankton, principally diatoms, but this cycle has evolved considerably during the Phanerozoic. We analyzed the temporal distribution of silica‐replaced fossils and bedded chert to determine the influence of factors such as extinctions and climate change on siliceous facies. Trends in silica replacement of fossils match faunal radiations during the Ordovician and Siluro‐Devonian, with peaks in silica replacement in the Late… 

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    Global Biogeochemical Cycles
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