Carbon isotopic shift and its cause at the Wuchiapingian-Changhsingian boundary in the Upper Permian at the Zhaojiaba section, South China: Evidences from multiple geochemical proxies

doi:10.1016/j.jseaes.2015.01.011

CORC > 地质与地球物理研究所 > 中国科学院地质与地球物理研究所 > 中国科学院油气资源研究重点实验室

	Carbon isotopic shift and its cause at the Wuchiapingian-Changhsingian boundary in the Upper Permian at the Zhaojiaba section, South China: Evidences from multiple geochemical proxies
	Wei, Hengye 1,2; Yu, Hao 3; Wang, Jianguo 2; Qiu, Zhen 2; Xiang, Lei 4; Shi, Guo 1
刊名	JOURNAL OF ASIAN EARTH SCIENCES
	2015-06-01
卷号	105 页码:270-285
关键词	Wuchiapingian-changhsingian Boundary Biomarker Organic Carbon Isotope Primary Productivity Redox Zhaojiaba Section
DOI	10.1016/j.jseaes.2015.01.011
文献子类	Article
英文摘要	The Late Permian environmental change, connecting the Guadalupian-Lopingian (G-L) (Middle-Upper Permian) boundary mass extinction and the Permain-Triassic (P-Tr) boundary mass extinction, has attracted more and more attentions. A significant negative shift for carbon isotope had been found at the Wuchiapingian-Changhsingian (W-C) boundary in the Upper Permian recently. However, the cause(s) of this negative excursion is still unknown. To resolve this problem, we analyzed the bulk organic carbon isotope, total organic carbon (TOC) content, pyritic sulfur (S-py) content, major element concentrations, and molecular organic biomarkers in the Wujiaping and Dalong formations in the Upper Permian from the Zhaojiaba section in western Hubei province, South China. Our results show that (1) there was a significant negative excursion in organic carbon isotopes at the W-C boundary and again a negative excursion at the top of Changhsingian stage; (2) the significant negative excursion at the W-C boundary was probably a global signal and mainly caused by the low primary productivity; and (3) the negative carbon isotope excursion at the top of Changhsingian was probably caused by the Siberian Traps eruptions. A decline in oceanic primary productivity at the W-C boundary probably represents a disturbance of the marine food web, leading to a vulnerable ecosystem prior to the P-Tr boundary mass extinction. (C) 2015 Elsevier Ltd. All rights reserved.
WOS关键词	MARINE ORGANIC-MATTER ; WESTERN HUBEI PROVINCE ; TRIASSIC BOUNDARY ; MASS EXTINCTION ; SULFUR ISOTOPE ; BIOTIC CRISIS ; BLACK-SEA ; ENVIRONMENTAL-CHANGE ; HOLOCENE SEDIMENTS ; REDOX CONDITIONS
WOS研究方向	Geology
语种	英语
WOS记录号	WOS:000355051700017
资助机构	National Natural Science Foundation of China (NSFC)(41302021 ; National Natural Science Foundation of China (NSFC)(41302021 ; Scientific and Technologic Project of Jiangxi Education Department(GJJ13453) ; Scientific and Technologic Project of Jiangxi Education Department(GJJ13453) ; 41203030 ; 41203030 ; 41002007) ; 41002007) ; National Natural Science Foundation of China (NSFC)(41302021 ; National Natural Science Foundation of China (NSFC)(41302021 ; Scientific and Technologic Project of Jiangxi Education Department(GJJ13453) ; Scientific and Technologic Project of Jiangxi Education Department(GJJ13453) ; 41203030 ; 41203030 ; 41002007) ; 41002007)
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/62499]
专题	地质与地球物理研究所_中国科学院油气资源研究重点实验室
作者单位	1.E China Inst Technol, Earth Sci Coll, Nanchang 330013, Jiangxi, Peoples R China 2.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Petr Resources Res, Beijing 100029, Peoples R China 3.Peking Univ, Key Lab Orogen Belts & Crustal Evolut, MOE, Beijing 100871, Peoples R China 4.Nanjing Inst Geol & Paleontol, Key Lab Paleobiol & Stratig, Nanjing 210008, Jiangsu, Peoples R China
推荐引用方式 GB/T 7714	Wei, Hengye,Yu, Hao,Wang, Jianguo,et al. Carbon isotopic shift and its cause at the Wuchiapingian-Changhsingian boundary in the Upper Permian at the Zhaojiaba section, South China: Evidences from multiple geochemical proxies[J]. JOURNAL OF ASIAN EARTH SCIENCES,2015,105:270-285.
APA	Wei, Hengye,Yu, Hao,Wang, Jianguo,Qiu, Zhen,Xiang, Lei,&Shi, Guo.(2015).Carbon isotopic shift and its cause at the Wuchiapingian-Changhsingian boundary in the Upper Permian at the Zhaojiaba section, South China: Evidences from multiple geochemical proxies.JOURNAL OF ASIAN EARTH SCIENCES,105,270-285.
MLA	Wei, Hengye,et al."Carbon isotopic shift and its cause at the Wuchiapingian-Changhsingian boundary in the Upper Permian at the Zhaojiaba section, South China: Evidences from multiple geochemical proxies".JOURNAL OF ASIAN EARTH SCIENCES 105(2015):270-285.