Geochemical Stratigraphy and Microvertebrate Assemblage Sequences across the Silurian/Devonian Transition in South China

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	Geochemical Stratigraphy and Microvertebrate Assemblage Sequences across the Silurian/Devonian Transition in South China
	Zhao Wenjin 1; Wang Nianzhong 1; Zhu Min1 ; Mann, Ulrich 2; Herten, Ulrich 2; Luecke, Andreas 2; zhaowenjin@ivpp.ac.cn
	2011-04-01
发表期刊	ACTA GEOLOGICA SINICA-ENGLISH EDITION
ISSN	1000-9515
卷号	85 期号:2 页码:340-353
文章类型	Article
摘要	Carbon isotope (delta C-13(org)) analyses of non-marine elastic rocks and neritic carbonates and black shales spanning the Silurian/Devonian transition are compared from two richly fossiliferous sequences in Qujing of East Yunnan and Zoige of Sichuan, South China. The two sections, Xishancun and Putonggou sections in South China, reveal positive delta C-13(org) shifts happening in the Upper Pridoli and Lower Devonian and reaching peak values as heavy as -25.2 parts per thousand (Xishancun) id -19.9 parts per thousand (Putonggou) in the lowermost Lochkovian following the first occurrence of the thelodont Parathelodus and the conodont Icriodus woschmidti woschmidti (only in Putonggou Section and together with Protathyris-Lanceomyonia brachiopod fauna). These results replicate a globally known positive shift in delta C-13(org) from the uppermost Silurian to the lowermost Devonian. The delta C-13(org) variations across the Silurian/Devonian Boundary (SDB) at the two sections in South China exhibit a shift in carbon isotopic composition similar to the detailed SDB curves from the borehole Klonk-1 drilled at top of the Klonk Global Standard Stratotype-Section and Point (GSSP) in the Prague Basin, Czech Republic. In addition, four microvertebrate assemblages, including the Liaojiaoshan, Xishancun, Yanglugou and Xiaputonggou assemblages, are recognized from the Silurian/Devonian transition exposed in the Xishancun and Putonggou sections, respectively. The results from both carbon isotope stratigraphy and microvertebrate assemblage sequences suggest that the SDB in South China is located at the base of the Xishancun Formation (between sample QX-20 and sample QX-21) in the Xishancun Section and the lower part of the Xiaputonggou Formation (between sample ZP-09 and sample ZP-10) in the Putonggou Section. The isotopic trend for organic carbon together with the chages of microvertebrate remains across the SDB can offer an approach to a potential correlation of the SDB from different sedimentary facies, which help to correlate the marine with non-marine deposits.
关键词	Carbon Isotope Stratigraphy Microvertebrate Assemblages Silurian-devonian Boundary Marine And non-Marine Stratigraphic Correlation South China
WOS标题词	Science & Technology ; Physical Sciences
关键词[WOS]	CARBON-ISOTOPE STRATIGRAPHY ; UPPER PROTEROZOIC SUCCESSIONS ; SILURIAN-DEVONIAN TRANSITION ; ORGANIC-CARBON ; NORTHEASTERN YUNNAN ; NORTH-AMERICA ; LIMESTONES ; PERTURBATION ; DELTA-C-13 ; BOUNDARY
收录类别	SCI
语种	英语
WOS研究方向	Geology
WOS类目	Geosciences, Multidisciplinary
WOS记录号	WOS:000289845800008
引用统计
文献类型	期刊论文
条目标识符	http://119.78.100.205/handle/311034/4425
专题	中科院古脊椎所（2000年以后）古低等脊椎动物研究室
通讯作者	zhaowenjin@ivpp.ac.cn
作者单位	1.Chinese Acad Sci, Key Lab Evolutionary Systemat Vertebrates, Inst Vertebrate Paleontol & Paleoanthropol, Beijing 100044, Peoples R China 2.Res Ctr Juelich GmbH, Inst Chem & Dynam Geosphere ICG 4, D-52425 Julich, Germany
推荐引用方式 GB/T 7714	Zhao Wenjin,Wang Nianzhong,Zhu Min,et al. Geochemical Stratigraphy and Microvertebrate Assemblage Sequences across the Silurian/Devonian Transition in South China[J]. ACTA GEOLOGICA SINICA-ENGLISH EDITION,2011,85(2):340-353.
APA	Zhao Wenjin.,Wang Nianzhong.,Zhu Min.,Mann, Ulrich.,Herten, Ulrich.,...&zhaowenjin@ivpp.ac.cn.(2011).Geochemical Stratigraphy and Microvertebrate Assemblage Sequences across the Silurian/Devonian Transition in South China.ACTA GEOLOGICA SINICA-ENGLISH EDITION,85(2),340-353.
MLA	Zhao Wenjin,et al."Geochemical Stratigraphy and Microvertebrate Assemblage Sequences across the Silurian/Devonian Transition in South China".ACTA GEOLOGICA SINICA-ENGLISH EDITION 85.2(2011):340-353.

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