Quick Search:    advanced search

GSW Home   GeoRef Home   My GSW Alerts   Contact GSW   About GSW   Journals List   Help

This Article Figures Only Full Text Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Citation Map Services Email this article to a friend Similar articles in this journal Similar articles in ISI Web of Science Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via HighWire Citing Articles via ISI Web of Science (8) Citing Articles via Google Scholar Google Scholar Articles by Lehrmann, D. J. Articles by Jiayong, W. Search for Related Content GeoRef GeoRef Citation

Timing of recovery from the end-Permian extinction: Geochronologic and biostratigraphic constraints from south China

Daniel J. Lehrmann^*,1, Jahandar Ramezani², Samuel A. Bowring², Mark W. Martin^,2, Paul Montgomery^#,3, Paul Enos³, Jonathan L. Payne⁴, Michael J. Orchard⁵, Wang Hongmei⁶ and Wei Jiayong⁶

¹ Department of Geology, University of Wisconsin–Oshkosh, Oshkosh, Wisconsin 54901, USA
² Department of Earth, Atmospheric, and Planetary Sciences, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
³ Department of Geology, University of Kansas, Lawrence, Kansas 66045, USA
⁴ Department of Geological and Environmental Sciences, Stanford University, Stanford, California 94305, USA
⁵ Geological Survey of Canada, Vancouver, BC V6B 5J3, Canada
⁶ Guizhou Bureau of Geology and Mineral Resources, Guiyang, Guizhou, People's Republic of China

Four volcanic-ash beds bracket the Early-Middle Triassic boundary, as defined by conodont biostratigraphy, in a stratigraphic section in south China. High-precision U-Pb dates of single zircons allow us to place the Early to Middle Triassic (Olenekian-Anisian) boundary at 247.2 Ma. Magnetic-reversal stratigraphy allows global correlation. The new dates constrain the Early Triassic interval characterized by delayed biotic recovery and carbon-cycle instability to 5 m.y. This time constraint must be considered in any model for the end-Permian extinction and subsequent recovery.

Key Words: U-Pb geochronology • conodont • biostratigraphy • Permian • Triassic • extinction

This article has been cited by other articles:

				C. M. Powers and D. J. Bottjer Bryozoan paleoecology indicates mid-Phanerozoic extinctions were the product of long-term environmental stress Geology, November 1, 2007; 35(11): 995 - 998. [Abstract] [Full Text] [PDF]

				J. L. Payne, D. J. Lehrmann, D. Follett, M. Seibel, L. R. Kump, A. Riccardi, D. Altiner, H. Sano, and J. Wei Erosional truncation of uppermost Permian shallow-marine carbonates and implications for Permian-Triassic boundary events GSA Bulletin, July 1, 2007; 119(7-8): 771 - 784. [Abstract] [Full Text] [PDF]

				C. Verdel, B. P. Wernicke, J. Ramezani, J. Hassanzadeh, P. R. Renne, and T. L. Spell Geology and thermochronology of Tertiary Cordilleran-style metamorphic core complexes in the Saghand region of central Iran GSA Bulletin, July 1, 2007; 119(7-8): 961 - 977. [Abstract] [Full Text] [PDF]

				M. L. Fraiser and D. J. Bottjer When bivalves took over the world Paleobiology, June 1, 2007; 33(3): 397 - 413. [Abstract] [Full Text] [PDF]

				D. J. Lehrmann, P. Donghong, P. Enos, M. Minzoni, B. B. Ellwood, M. J. Orchard, Z. Jiyan, W. Jiayong, P. Dillett, J. Koenig, et al. Impact of differential tectonic subsidence on isolated carbonate-platform evolution: Triassic of the Nanpanjiang Basin, south China AAPG Bulletin, March 1, 2007; 91(3): 287 - 320. [Abstract] [Full Text] [PDF]