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Advances in Earth Science  2012, Vol. 27 Issue (6): 613-623    DOI: 10.11867/j.issn.1001-8166.2012.06.0613
Evidences for the Permian-Triassic Wildfire Event: Review and Appraisal
Shen Wenjie1,2, Zhang Hua3, Sun Yongge4, Lin Yangting5, Liang Ting1,2, Yang Zhijun1,2, Zhou Yongzhang1,2
1.Department of Earth Sciences, Sun Yatsen University, Guangzhou510275, China;
2.Guangdong Key Laboratory of Geological Process and Mineral Resources Exploration, Guangzhou510275, China;
3.State Key Laboratory of Palaeoliology and Stratigraphy, Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences, Nanjing210008, China;
4.Department of Earth Sciences, Zhejiang University, Hangzhou310027, China;
5.Key Laboratory of the Earth′s Deep Interior, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing100029, China
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Black Carbon (BC) and combustion-derived Polycyclic Aromatic Hydrocarbons (PAHs), as inert products of combustion, serve as indicators of palaeo-wildfire for their long-lasting preservation in the sediments. Recently, wildfire records including BC particles and combustion-derived PAHs were discovered in the PermianTriassic (P-Tr) sediments worldwide. It is especially exciting that the content of BC and combustion-derived PAHs in the Meishan P-Tr boundary shows steep peak coinciding with the mass extinction horizon (bed 25 and bed 26). Thus, the P-Tr wildfire event was definitely proposed for the first time. It is deserved to probe the scale and characteristics of the P-Tr wildfire, and the relationship between wildfire and mass extinction. Wildfire, which  occurs on land, could tie land, atmosphere and ocean together through combustion products. Climatic and environmental changes, as a result, can be studied by wildfire which gives a holistic approach to understanding the catastrophic history. Therefore, wildfire records in the P-Tr sediment were reviewed, and the relationships between wildfire and mass extinction were appraised in order to draw experts′ attentions.

Key words:  Permian-Triassic      Mass extinction      Wildfire      Black Carbon      Combustion-derived polycyclic aromatic hydrocarbons     
Received:  11 November 2011      Published:  10 June 2012
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Shen Wenjie, Zhang Hua, Sun Yongge, Lin Yangting, Liang Ting, Yang Zhijun. Evidences for the Permian-Triassic Wildfire Event: Review and Appraisal. Advances in Earth Science, 2012, 27(6): 613-623.

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