Large Perturbations of the Carbon Cycle During Recovery from the End-Permian Extinction

Author:

Payne Jonathan L.1234,Lehrmann Daniel J.1234,Wei Jiayong1234,Orchard Michael J.1234,Schrag Daniel P.1234,Knoll Andrew H.1234

Affiliation:

1. Department of Earth and Planetary Sciences, Harvard University, 20 Oxford Street, Cambridge, MA 02138, USA.

2. Department of Geology, University of Wisconsin–Oshkosh, 800 Algoma Boulevard, Oshkosh, WI 54901, USA.

3. Guizhou Bureau of Geology and Mineral Resources, Bagongli, Guiyang 550011, Guizhou, People's Republic of China.

4. Geological Survey of Canada, 101-605 Robson Street, Vancouver, BC V6B 5J3, Canada.

Abstract

High-resolution carbon isotope measurements of multiple stratigraphic sections in south China demonstrate that the pronounced carbon isotopic excursion at the Permian-Triassic boundary was not an isolated event but the first in a series of large fluctuations that continued throughout the Early Triassic before ending abruptly early in the Middle Triassic. The unusual behavior of the carbon cycle coincides with the delayed recovery from end-Permian extinction recorded by fossils, suggesting a direct relationship between Earth system function and biological rediversification in the aftermath of Earth's most devastating mass extinction.

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

Reference47 articles.

1. U/Pb Zircon Geochronology and Tempo of the End-Permian Mass Extinction

2. Timing of the Permian–Triassic biotic crisis: implications from new zircon U/Pb age data (and their limitations)

3. References ( 1 ) and ( 2 ) report ages of 251.4 ± 0.3 Ma and ∼253 Ma respectively for P-Tr boundary ash beds from the same locality. Because the only published age for the Early-Middle Triassic boundary was determined in the same laboratory as in ( 1 ) we have chosen for consistency's sake to use the result from ( 1 ). The conclusions of this paper do not depend on which date is more accurate.

4. Size of the Permo-Triassic Bottleneck and Its Evolutionary Implications

5. The Great Paleozoic Crisis: Life and Death in the Permian 1993

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