Late Hirnantian (latest Ordovician) carbonate rocks and shelly fossils in Shiqian, northeastern Guizhou, Southwest China
Wang, Guangxu (王光旭)1; Zhan, Renbin (詹仁斌)1; Percival, Ian G.2; Huang, Bing (黄冰)1; Li, Yue (李越)3; Wu, Rongchang (吴荣昌)3
2015-08-01
发表期刊NEWSLETTERS ON STRATIGRAPHY
ISSN0078-0421
卷号48期号:3页码:241-252
摘要

The Kuanyinchiao Formation has generally been regarded as representing the only carbonate sediments deposited during the Hirnantian (Late Ordovician) interval in South China, where the Hirnantian GSSP is situated. Reinvestigation of several key Ordovician-Silurian boundary sections in Shiqian, northeastern Guizhou Province, Southwest China, reveals a lithologically distinct carbonate unit with abundant shelly fossils, including tabulate and rugose corals, conodonts, brachiopods, trilobites and stromatoporoids, many showing close Silurian affinities and suggesting a level stratigraphically much higher than the Kuanyinchiao Formation. This observation, together with further evidence that graptolites indicative of the Akidograptus ascensus biozone are present in immediately overlying rocks at a nearby section, implies that these shelly fossiliferous strata are of latest Hirnantian age (possibly straddling the Ordovician-Silurian boundary). Hence they were most likely deposited after the Hirnantian glaciation, rather than representing glacial cool water sediments (the Kuanyinchiao Formation) as was previously thought. Ordovician-Silurian boundary sequences in South China typically reflect global glacio-eustatic sea-level changes. Owing to their unique lithology and palaeontology, these newly recognized carbonate rocks, here formally named the Shiqian Formation, add substantially to our knowledge of Ordovician-Silurian stratigraphy in this region.

关键词Hirnantian Ordovician Carbonates Glaciation Fossils South China
DOI10.1127/nos/2015/0062
语种英语
关键词[WOS]Yangtze Platform ; Fauna
资助项目National Natural Science Foundation of China[41221001] ; National Natural Science Foundation of China[41290260] ; National Natural Science Foundation of China[41472006] ; State Key Laboratory of Palaeobiology and Stratigraphy ; IGCP Project[591]
WOS研究方向Geology
WOS类目Geology
WOS记录号WOS:000359000600001
项目资助者National Natural Science Foundation of China ; State Key Laboratory of Palaeobiology and Stratigraphy ; IGCP Project
出版者GEBRUDER BORNTRAEGER
文献类型期刊论文
条目标识符http://ir.nigpas.ac.cn/handle/332004/11977
专题中国科学院南京地质古生物研究所
其他
通讯作者Wang, Guangxu (王光旭)
作者单位1.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, State Key Lab Palaeobiol & Stratig, Nanjing 210008, Peoples R China
2.Geol Survey New South Wales, Londonderry, NSW 2753, Australia
3.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, Key Lab Econ Stratig & Palaeogeog, Nanjing 210008, Peoples R China
第一作者单位中国科学院南京地质古生物研究所
通讯作者单位中国科学院南京地质古生物研究所
推荐引用方式
GB/T 7714
Wang, Guangxu ,Zhan, Renbin ,Percival, Ian G.,et al. Late Hirnantian (latest Ordovician) carbonate rocks and shelly fossils in Shiqian, northeastern Guizhou, Southwest China[J]. NEWSLETTERS ON STRATIGRAPHY,2015,48(3):241-252.
APA Wang, Guangxu ,Zhan, Renbin ,Percival, Ian G.,Huang, Bing ,Li, Yue ,&Wu, Rongchang .(2015).Late Hirnantian (latest Ordovician) carbonate rocks and shelly fossils in Shiqian, northeastern Guizhou, Southwest China.NEWSLETTERS ON STRATIGRAPHY,48(3),241-252.
MLA Wang, Guangxu ,et al."Late Hirnantian (latest Ordovician) carbonate rocks and shelly fossils in Shiqian, northeastern Guizhou, Southwest China".NEWSLETTERS ON STRATIGRAPHY 48.3(2015):241-252.
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