中国科学院机构知识库网格系统: Carbon and sulfur isotopic anomalies across the Ordovician-Silurian boundary on the Yangtze Platform, South China

Carbon and sulfur isotopic anomalies across the Ordovician-Silurian boundary on the Yangtze Platform, South China

文献类型：期刊论文


作者	Yan, Detian 2,3; Chen, Daizhao 1; Wang, Qingchen 3; Wang, Jianguo 1; Wang, Zhuozhuo 1
刊名	PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
出版日期	2009-04-01
卷号	274 期号:1-2 页码:32-39
关键词	Stable isotopes Carbon-sulfur isotope Mass extinctions Climate change Anoxia Ordovician-Silurian boundary Yangtze Platform
ISSN号	0031-0182
DOI	10.1016/j.palaeo.2008.12.016
文献子类	Article
英文摘要	Abundance of organic matter, carbon isotopic compositions of organic matter (delta(13)C(org)) and sulfur isotopic compositions of iron sulfide (delta(34)S(sulfide)) across the Ordovician-Silurian (O-S) boundary was analysed from two sections (Wangjiawan, western Hubei; Nanbazi, northern Guizhou) on the Yangtze Platform, South China. The organic abundance across the O-S boundary at these two sections is generally high, except for the Hirnantian interval. At Wangjiawan section in western Hubei, the delta(13)C(org) values vary from about -30.8 parts per thousand. VPDB in the mid-Ashgill to -27.6 parts per thousand in the upper Hirnantian interval, which abruptly return to the pre-Hirnantian values. At Nanbazi section in northern Guizhou, delta(13)C(org) values vary from -30.5 parts per thousand to -26.6 parts per thousand from the mid-Ashgill to the upper Himantian horizons, which shift negatively to the low spike at -29.2 parts per thousand in the lowermost Rhuddanian, then increase slightly to relatively persistent values around -28 parts per thousand. Similar variation patterns of delta(34)S(sulfide) values are unravelled at the two sections, showing a positive excursion from the mid-Ashgill to the upper Hirnantian, then a sharp negative shift in the lowermost Rhuddanian, although with different background values of delta(34)S(sulfide) from these two sections. These data, together with those from other areas, demonstrate large climatic fluctuations from warming to cooling, then to warming, oceanic changes from and anoxic to oxygenated, to anoxic water columns, during the O-S transition. Climatic fluctuations, together with multiple oceanic anoxia and sea-level fluctuations, were likely responsible for the stepwise massive demise of the O-S biotic crisis. (C) 2009 Elsevier B.V. All rights reserved.
WOS关键词	PERMIAN-TRIASSIC BOUNDARY ; HIGH-RESOLUTION CARBON ; MASS EXTINCTION ; HIRNANTIAN GLACIATION ; GLOBAL CORRELATION ; STRATIGRAPHY ; FRACTIONATION ; SEA ; CANADA ; OCEAN
WOS研究方向	Physical Geography ; Geology ; Paleontology
语种	英语
WOS记录号	WOS:000264739600003
出版者	ELSEVIER SCIENCE BV
资助机构	National Key Basic Research Project (973 Project)(2005CB422101) ; National Key Basic Research Project (973 Project)(2005CB422101) ; NSFC-SINOPEC United Foundation(40839907) ; NSFC-SINOPEC United Foundation(40839907) ; National Key Basic Research Project (973 Project)(2005CB422101) ; National Key Basic Research Project (973 Project)(2005CB422101) ; NSFC-SINOPEC United Foundation(40839907) ; NSFC-SINOPEC United Foundation(40839907) ; National Key Basic Research Project (973 Project)(2005CB422101) ; National Key Basic Research Project (973 Project)(2005CB422101) ; NSFC-SINOPEC United Foundation(40839907) ; NSFC-SINOPEC United Foundation(40839907) ; National Key Basic Research Project (973 Project)(2005CB422101) ; National Key Basic Research Project (973 Project)(2005CB422101) ; NSFC-SINOPEC United Foundation(40839907) ; NSFC-SINOPEC United Foundation(40839907)
源URL	[http://ir.iggcas.ac.cn/handle/132A11/71076]
专题	中国科学院地质与地球物理研究所
通讯作者	Chen, Daizhao
作者单位	1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Petr Geophys, Beijing 100029, Peoples R China 2.China Univ Geosci, Fac Earth Resources, Wuhan 430074, Peoples R China 3.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithosphere Evolut, Beijing 100029, Peoples R China
推荐引用方式 GB/T 7714	Yan, Detian,Chen, Daizhao,Wang, Qingchen,et al. Carbon and sulfur isotopic anomalies across the Ordovician-Silurian boundary on the Yangtze Platform, South China[J]. PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,2009,274(1-2):32-39.
APA	Yan, Detian,Chen, Daizhao,Wang, Qingchen,Wang, Jianguo,&Wang, Zhuozhuo.(2009).Carbon and sulfur isotopic anomalies across the Ordovician-Silurian boundary on the Yangtze Platform, South China.PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,274(1-2),32-39.
MLA	Yan, Detian,et al."Carbon and sulfur isotopic anomalies across the Ordovician-Silurian boundary on the Yangtze Platform, South China".PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY 274.1-2(2009):32-39.

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来源：地质与地球物理研究所

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Carbon and sulfur isotopic anomalies across the Ordovician-Silurian boundary on the Yangtze Platform, South China

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