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Climate warming in the latest Permian and the Permian-Triassic mass extinction

Michael M. Joachimski, Lai Xulong, Shen Shuzhong, Jiang Haishui, Luo Genming, Bo Chen, Chen Jun and Sun Yadong
Climate warming in the latest Permian and the Permian-Triassic mass extinction
Geology (Boulder) (March 2012) 40 (3): 195-198


High-resolution oxygen isotope records document the timing and magnitude of global warming across the Permian-Triassic (P-Tr) boundary. Oxygen isotope ratios measured on phosphate-bound oxygen in conodont apatite from the Meishan and Shangsi sections (South China) decrease by 2 per mil in the latest Permian, translating into low-latitude surface water warming of 8 degrees C. The oxygen isotope shift coincides with the negative shift in carbon isotope ratios of carbonates, suggesting that the addition of isotopically light carbon to the ocean-atmosphere system by Siberian Traps volcanism and related processes resulted in higher greenhouse gas levels and global warming. The major temperature rise started immediately before the main extinction phase, with maximum and harmful temperatures documented in the latest Permian (Meishan: bed 27). The coincidence of climate warming and the main pulse of extinction suggest that global warming was one of the causes of the collapse of the marine and terrestrial ecosystems. In addition, very warm climate conditions in the Early Triassic may have played a major role in the delayed recovery in the aftermath of the Permian-Triassic crisis.

ISSN: 0091-7613
EISSN: 1943-2682
Serial Title: Geology (Boulder)
Serial Volume: 40
Serial Issue: 3
Title: Climate warming in the latest Permian and the Permian-Triassic mass extinction
Affiliation: University Erlangen-Nuremberg, GeoZentrum Nordbayern, Erlangen, Germany
Pages: 195-198
Published: 201203
Text Language: English
Publisher: Geological Society of America (GSA), Boulder, CO, United States
References: 42
Accession Number: 2012-041665
Categories: Stratigraphy
Document Type: Serial
Bibliographic Level: Analytic
Annotation: With GSA Data Repository Item 2012069
Illustration Description: strat. cols.
N27°10'00" - N31°10'00", E118°00'00" - E123°00'00"
N26°00'00" - N34°10'00", E97°30'00" - E108°25'00"
Secondary Affiliation: China University of Geosciences, CHN, ChinaNanjing Institute of Geology and Palaeontology, CHN, China
Country of Publication: United States
Secondary Affiliation: GeoRef, Copyright 2017, American Geosciences Institute. Reference includes data from GeoScienceWorld, Alexandria, VA, United States. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States
Update Code: 201222
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