Comparative earth history and late Premian mass extinction
- Harvard Univ., Cambridge, MA (United States)
- Virginia Polytechnic Institute and State Univ., Blacksburg, VA (United States)
- Max Planck Institute, Bremen (Germany)
- Massachusetts Institute of Technology, Cambridge (United States)
The repeated association during the late Neoproterozoic Era of large carbon-isotopic excursions, continental glaciation, and stratigraphically anomalous carbonate precipitation provides a framework for interpreting the reprise of these conditions on the Late Permian Earth. A paleoceanographic model that was developed to explain these stratigraphically linked phenomena suggests that the overturn of anoxic deep oceans during the Late Permian introduced high concentrations of carbon dioxide into surficial environments. The predicted physiological and climatic consequences for marine and terrestrial organisms are in good accord with the observed timing and selectivity of Late Permian mass extinction. 65 refs., 3 figs., 1 tab.
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 416776
- Journal Information:
- Science, Vol. 273, Issue 5274; Other Information: PBD: 26 Jul 1996
- Country of Publication:
- United States
- Language:
- English
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