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Polycyclic aromatic hydrocarbons (PAHs) evidence for frequent combustion events on land during the Permian -Triassic transition in Northwest China

文献类型：期刊论文

作者Jiao, Sheng-lin3,4; Zhang, Hua4; Cai, Yao-feng4; Jin, Chuan -fang4; Shen, Shu-zhong1,2
刊名PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
出版日期2024-05-15
卷号642页码:10
关键词Polycyclic aromatic hydrocarbons End-Permian mass extinction Land Volcanic activity Combustion events
ISSN号0031-0182
DOI10.1016/j.palaeo.2024.112152
通讯作者Zhang, Hua(hzhang@nigpas.ac.cn)
英文摘要The Siberian Traps large igneous province and intensive continental arc volcanism are regarded as the primary drivers of the severe environmental changes that triggered the end-Permian mass extinction. However, detailed correlations between volcanism and the collapse of terrestrial ecosystems remain ambiguous. This study used polycyclic aromatic hydrocarbons (PAHs) records and mercury spikes from the terrestrial Dalongkou section as refined proxies for volcanic combustion events. The mercury anomalies, PAH concentrations, and PAH ratios provide insight into the terrestrial ecosystem collapse during the Permian-Triassic (P-T) transition. Based on the multiple PAH ratios, the source and composition of PAHs exhibit obvious pyrolytic-derived origins during the late Permian. Combined with the biostratigraphic records and our PAH proxies in the Dalongkou section, terrestrial ecosystems experienced stepwise crisis and change owing to volcanic effects and frequent hightemperature combustion events during the P-T transition. During the main terrestrial P-T crisis interval, the increased PAH concentrations indicate that the combustion events were gradually enhanced under worse climatic conditions. Based on the PAH records, enhanced soil erosion accompanied by frequent wildfires was found to occur under extremely high-temperature climatic conditions caused by intensive volcanic activity during the P-T transition.
WOS关键词MASS EXTINCTION ; OCEANIC ANOXIA ; CRUDE OILS ; END ; MERCURY ; SEDIMENTS ; XINJIANG ; BASIN ; FIRE ; VALIDATION
资助项目National Natural Science Foundation of China[42293280] ; Strategic Priority Research Programs of the Chinese Academy of Sciences[XDB26000000]
WOS研究方向Physical Geography ; Geology ; Paleontology
语种英语
WOS记录号WOS:001224621000001
出版者ELSEVIER
资助机构National Natural Science Foundation of China ; Strategic Priority Research Programs of the Chinese Academy of Sciences
源URL[http://ir.nigpas.ac.cn/handle/332004/43737]  
专题中国科学院南京地质古生物研究所
通讯作者Zhang, Hua
作者单位1.Nanjing Univ, Frontiers Sci Ctr Crit Earth Mat Cycling, Nanjing 210023, Peoples R China
2.Nanjing Univ, State Key Lab Mineral Deposits Res, Sch Earth Sci & Engn, Nanjing 210023, Peoples R China
3.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China
4.Chinese Acad Sci, State Key Lab Palaeobiol & Stratig, Nanjing Inst Geol & Palaeontol, Nanjing 210008, Peoples R China
推荐引用方式
GB/T 7714		 Jiao, Sheng-lin,Zhang, Hua,Cai, Yao-feng,et al. Polycyclic aromatic hydrocarbons (PAHs) evidence for frequent combustion events on land during the Permian -Triassic transition in Northwest China[J]. PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,2024,642:10.
APA Jiao, Sheng-lin,Zhang, Hua,Cai, Yao-feng,Jin, Chuan -fang,&Shen, Shu-zhong.(2024).Polycyclic aromatic hydrocarbons (PAHs) evidence for frequent combustion events on land during the Permian -Triassic transition in Northwest China.PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,642,10.
MLA Jiao, Sheng-lin,et al."Polycyclic aromatic hydrocarbons (PAHs) evidence for frequent combustion events on land during the Permian -Triassic transition in Northwest China".PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY 642(2024):10.

入库方式： OAI收割

来源：南京地质古生物研究所

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