KMS Nanjing Institute of Geology and Palaeonotology,CAS
Late Hirnantian (latest Ordovician) carbonate rocks and shelly fossils in Shiqian, northeastern Guizhou, Southwest China | |
Wang, Guangxu (王光旭)1![]() ![]() ![]() ![]() ![]() | |
2015-08-01 | |
发表期刊 | NEWSLETTERS ON STRATIGRAPHY
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ISSN | 0078-0421 |
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 |
DOI | 10.1127/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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