NIGPAS OpenIR  > 中国科学院南京地质古生物研究所
Biostratigraphy and geography of the Ordovician-Silurian Lungmachi black shales in South China
Fan JunXuan (樊隽轩)1; Melchin, Michael J.2; Chen Xu (陈旭)1; Wang Yi (王怿)1; Zhang YuanDong (张元动)1; Chen Qing (陈清)1; Chi ZhaoLi1,3; Chen Feng1
2011-12-01
Source PublicationSCIENCE CHINA-EARTH SCIENCES
ISSN1674-7313
Volume54Issue:12Pages:1854-1863
Abstract

Based on the new material of seven Ordovician-Silurian boundary sections investigated recently, together with previously published data, we analyze the temporal and spatial distributions of the Lungmachi black shales, a key petroleum source bed widely distributed in South China. The Lungmachi black shales range in age from the Normalograptus persculptus Biozone of the uppermost Ordovician to the Spirograptus guerichi Biozone of the lower Telychian, and ten graptolite biozones can be recognized within this unit. The basal and upper contacts of the Lungmachi black shales are diachronous. The basal contact ranges from the N. persculptus to the C. cyphus biozones, a span of five graptolite biozones over two stages. The upper contact ranges from the D. pectinatus-M. argenteus Biozone to the Spirograptus guerichi Biozone, which spans four graptolite biozones over two stages. The Yichang Uplift resulted in the formation of the Hunan-Hubei Submarine High in the border area of Hubei, Hunan, and Chongqing. This is supported by a break in sedimentation in this area spanning all or part of the Hirnantian, and in many areas extending into the underlying Katian and overlying Rhuddanian. Comparison of the distribution of the Katian to Rhuddanian strata in this area indicates a growth and subsequent reduction in area of the Hunan-Hubei Submarine High particularly in the Hirnantian to early Rhuddanian. This may partly represent the influence of the process of formation and melting of ice sheet in Ordovician South Pole and consequent sea level change.

KeywordSouth China Ordovician-silurian Lungmachi Formation Graptolitic Black Shales Petroleum Source Bed
DOI10.1007/s11430-011-4301-3
Language英语
WOS KeywordYangtze Region ; Graptolite ; Stratotype ; System ; Base
Funding ProjectChinese Academy of Sciences[KZCX2-EW-111] ; National Natural Science Foundation of China[40839910] ; National Natural Science Foundation of China[40772002] ; Natural Sciences and Engineering Research Council of Canada ; St. Francis Xavier University
WOS Research AreaGeology
WOS SubjectGeosciences, Multidisciplinary
WOS IDWOS:000297844800006
Funding OrganizationChinese Academy of Sciences ; National Natural Science Foundation of China ; Natural Sciences and Engineering Research Council of Canada ; St. Francis Xavier University
PublisherSCIENCE PRESS
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Document Type期刊论文
Identifierhttp://ir.nigpas.ac.cn/handle/332004/465
Collection中国科学院南京地质古生物研究所
其他
Corresponding AuthorFan JunXuan (樊隽轩)
Affiliation1.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, State Key Lab Palaeobiol & Stratig, Nanjing 210008, Jiangsu, Peoples R China
2.St Francis Xavier Univ, Dept Earth Sci, Antigonish, NS B2G 2W5, Canada
3.SINOPEK, Int Oil & Dev Co, Algeria Branch, Dongying 257000, Peoples R China
First Author AffilicationNanjing Institute of Geology and Palaeonotology,CAS
Corresponding Author AffilicationNanjing Institute of Geology and Palaeonotology,CAS
Recommended Citation
GB/T 7714
Fan JunXuan ,Melchin, Michael J.,Chen Xu ,et al. Biostratigraphy and geography of the Ordovician-Silurian Lungmachi black shales in South China[J]. SCIENCE CHINA-EARTH SCIENCES,2011,54(12):1854-1863.
APA Fan JunXuan .,Melchin, Michael J..,Chen Xu .,Wang Yi .,Zhang YuanDong .,...&Chen Feng.(2011).Biostratigraphy and geography of the Ordovician-Silurian Lungmachi black shales in South China.SCIENCE CHINA-EARTH SCIENCES,54(12),1854-1863.
MLA Fan JunXuan ,et al."Biostratigraphy and geography of the Ordovician-Silurian Lungmachi black shales in South China".SCIENCE CHINA-EARTH SCIENCES 54.12(2011):1854-1863.
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