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Biostratigraphic and Chemostratigraphic Correlation for the Base of the Middle Ordovician between Yichang and Western Zhejiang Areas, South China
Zhang YuanDong (张元动)1; Munnecke, Axel2; Chen Xu (陈旭)1; Cheng Junfeng (陈俊峰)1; Liu Xiao (刘晓)3
2011-04-01
Source PublicationACTA GEOLOGICA SINICA-ENGLISH EDITION
ISSN1000-9515
Volume85Issue:2Pages:320-329
Abstract

The base of the Middle Ordovician (i.e. Dapingian Stage) has been defined at the first appearance datum (FAD) of conodont Baltoniodus? triangularis at Huanghuachang, Yichang, China, but the precise correlation of the bound to regions of other fades remain to be resolved. Herein we review the biostratigraphy and chemostratigraphy of the Huanghuachang Global Standard Stratotype-Section and Point (GSSP) section, and present our latest stratigraphic work on the nearby Chenjiahe section in Yichang, and the Hengtang Quarry section, Jiangshan, Zhejiang, which is regarded as representative of slope facies. The conodont and graptolite biostratigraphy as well as chemostratigraphy of the Chenjiahe section indicate that the base of the Middle Ordovician also falls within the graptolite Azygograptus suecicus Zone, and coincides with a high or maximum delta C-13 value within a minor positive carbon isotope excursion, suggesting that the base boundary can be readily recognized across the entire Yangtze Gorges area. The integrated graptolite and conodont biostratigraphy and chemostratigraphy of the Hengtang section, Jiangshan, indicates that the basal boundary probably falls within the graptolite Isograptus caduceus imitatus Zone that overlies the Azygograptus suecicus Zone, and coincides with a remarkable drop of delta C-13. This difference indicates that a multi-disciplinary approach is critical to identify the base boundary in those regions where the Baltoniodus? triangularis is absent.

KeywordGraptolite Biostratigraphy Chemostratigraphy Middle Ordovician Slope Facies South China
Language英语
WOS KeywordBiodiversification Event ; Graptolites ; Series ; Stage
Funding ProjectChinese Academy of Sciences[KZCX2-YW-122] ; Ministry of Science and Technology of China[2006FY120300-4] ; Ministry of Science and Technology of China[2008ZX05008-001] ; Deutsche Forschungsgemeinschaft[DFG Mu 2352/1] ; Robert-Bosch-Stiftung[Nr. 32.5.8003.0009.0] ; Uni-Bund Erlangen
WOS Research AreaGeology
WOS SubjectGeosciences, Multidisciplinary
WOS IDWOS:000289845800006
Funding OrganizationChinese Academy of Sciences ; Ministry of Science and Technology of China ; Deutsche Forschungsgemeinschaft ; Robert-Bosch-Stiftung ; Uni-Bund Erlangen
PublisherWILEY-BLACKWELL
Citation statistics
Document Type期刊论文
Identifierhttp://ir.nigpas.ac.cn/handle/332004/464
Collection中国科学院南京地质古生物研究所
其他
Corresponding AuthorZhang YuanDong (张元动)
Affiliation1.Nanjing Inst Geol & Palaeontol, State Key Lab Palaeobiol & Stratig, Nanjing 210008, Peoples R China
2.Univ Erlangen Nurnberg, GeoZentrum Nordbayern, FG Palaoumwelt, D-91054 Erlangen, Germany
3.E China Co, Res Inst Petr Explorat & Dev, SINOPEC, Nanjing 210011, 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
Zhang YuanDong ,Munnecke, Axel,Chen Xu ,et al. Biostratigraphic and Chemostratigraphic Correlation for the Base of the Middle Ordovician between Yichang and Western Zhejiang Areas, South China[J]. ACTA GEOLOGICA SINICA-ENGLISH EDITION,2011,85(2):320-329.
APA Zhang YuanDong ,Munnecke, Axel,Chen Xu ,Cheng Junfeng ,&Liu Xiao .(2011).Biostratigraphic and Chemostratigraphic Correlation for the Base of the Middle Ordovician between Yichang and Western Zhejiang Areas, South China.ACTA GEOLOGICA SINICA-ENGLISH EDITION,85(2),320-329.
MLA Zhang YuanDong ,et al."Biostratigraphic and Chemostratigraphic Correlation for the Base of the Middle Ordovician between Yichang and Western Zhejiang Areas, South China".ACTA GEOLOGICA SINICA-ENGLISH EDITION 85.2(2011):320-329.
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