Document Detail

Calibrating the End-Permian Mass Extinction.
MedLine Citation:
PMID:  22096103     Owner:  NLM     Status:  Publisher    
The end-Permian mass extinction was the most severe biodiversity crisis in earth history. To better constrain the timing, and ultimately the causes of this event, we collected a suite of geochronologic, isotopic, and biostratigraphic data on several well-preserved sedimentary sections in South China. High-precision U-Pb dating reveals that the extinction peak occurred just before 252.28 ± 0.08 Ma, following a decline of 2‰ in δ(13)C over 90,000 years, and coincided with a δ(13)C excursion of -5‰ that is estimated to have lasted ≤20,000 years. The extinction interval was less than 200,000 years, and synchronous in marine and terrestrial realms; associated charcoal-rich and soot-bearing layers indicate widespread wildfires on land. A massive release of thermogenic carbon dioxide and/or methane may have caused the catastrophic extinction.
Shu-Zhong Shen; James L Crowley; Yue Wang; Samuel A Bowring; Douglas H Erwin; Peter M Sadler; Chang-Qun Cao; Daniel H Rothman; Charles M Henderson; Jahandar Ramezani; Hua Zhang; Yanan Shen; Xiang-Dong Wang; Wei Wang; Lin Mu; Wen-Zhong Li; Yue-Gang Tang; Xiao-Lei Liu; Lu-Jun Liu; Yong Zeng; Yao-Fa Jiang; Yu-Gan Jin
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-11-17
Journal Detail:
Title:  Science (New York, N.Y.)     Volume:  -     ISSN:  1095-9203     ISO Abbreviation:  -     Publication Date:  2011 Nov 
Date Detail:
Created Date:  2011-11-18     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0404511     Medline TA:  Science     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
LPS, Nanjing Institute of Geology and Palaeontology, 39 East Beijing Road, Nanjing 210008, China.
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