Carbon isotopes and event stratigraphy near the Ordovician-Silurian boundary, Yichang, South China

doi:10.1016/j.palaeo.2009.03.007

NIGPAS OpenIR

	Carbon isotopes and event stratigraphy near the Ordovician-Silurian boundary, Yichang, South China
	Fan, Junxuan 1; Peng, Ping'an 2; Melchin, M. J.3
	2009-05-15
发表期刊	PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
ISSN	0031-0182
卷号	276 期号:1-4 页码:160-169
摘要	The organic carbon isotope data through the unweathered Ordovician-Silurian boundary strata at the Wangjiawan Riverside section, which is c. 180 m southeast of the Wangjiawan North section, the GSSP for the base of the Hirnantian Stage (Upper Ordovician), show that a positive delta C-13(org) excursion begins just below the base of the Hirnantian Stage and peaks in the lower part of the N. extraordinarius Biozone. This is followed by an interval of slightly reduced delta C-13 values and a second peak of 2 parts per thousand above pre-Hirnantian values, which occurs in the lower part of the N. persculptus Biozone (upper Hirnantian). The peaks in delta C-13(org) values can be correlated well with episodes of glacial expansion described from Africa and peri-Gondwanan Europe. Evidence from sedimentological, faunal, and geochemical data from South China, as well as the evidence of glacial sediments in North Africa, all suggests a short-lived glaciation of similar to 1 Ma in the Ordovician South Pole region, consisting of at least two major pulses. The first phase of gradual glacial expansion began just before the Hirnantian Epoch and the second phase ended with rapid melting in the late Hirnantian (early N. persculptus Biozone). (C) 2009 Elsevier B.V. All rights reserved.
关键词	Carbon isotopes Ordovician-Silurian boundary Hirnantian South China Glaciation Mass extinction
DOI	10.1016/j.palaeo.2009.03.007
语种	英语
关键词[WOS]	GLOBAL CORRELATION ; ANTICOSTI ISLAND ; MASS EXTINCTION ; YANGTZE REGION ; GLACIATION ; SEA ; QUEBEC ; PERSPECTIVE ; GRAPTOLITE ; PLATFORM
资助项目	Chinese Academy of Sciences[KZCX2-YW-122] ; Chinese Academy of Sciences[KZCX3-SW-149] ; Ministry of Science and Technology of China[2006CB806400] ; National Natural Science Foundation of China[40532009] ; National Natural Science Foundation of China[40772002] ; Natural Sciences and Engineering Research Council of Canada
WOS研究方向	Physical Geography ; Geology ; Paleontology
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary ; Paleontology
WOS记录号	WOS:000266906200014
项目资助者	Chinese Academy of Sciences ; Ministry of Science and Technology of China ; National Natural Science Foundation of China ; Natural Sciences and Engineering Research Council of Canada
出版者	ELSEVIER SCIENCE BV
文献类型	期刊论文
条目标识符	http://ir.nigpas.ac.cn/handle/332004/19437
通讯作者	Fan, Junxuan
作者单位	1.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, State Key Lab Palaeobiol & Stratig, Nanjing 210008, Peoples R China 2.Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Organ Geochem, Guangzhou 510640, Guangdong, Peoples R China 3.St Francis Xavier Univ, Dept Earth Sci, Antigonish, NS B2G 2W5, Canada
推荐引用方式 GB/T 7714	Fan, Junxuan,Peng, Ping'an,Melchin, M. J.. Carbon isotopes and event stratigraphy near the Ordovician-Silurian boundary, Yichang, South China[J]. PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,2009,276(1-4):160-169.
APA	Fan, Junxuan,Peng, Ping'an,&Melchin, M. J..(2009).Carbon isotopes and event stratigraphy near the Ordovician-Silurian boundary, Yichang, South China.PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,276(1-4),160-169.
MLA	Fan, Junxuan,et al."Carbon isotopes and event stratigraphy near the Ordovician-Silurian boundary, Yichang, South China".PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY 276.1-4(2009):160-169.