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Exploring the end-Ordovician extinctions in Hirnantian near-shore carbonate rocks of northern Guizhou, SW China: A refined stratigraphy and regional correlation
Wang, Guangxu (王光旭)1; Zhan, Renbin (詹仁斌)1,2; Rong, Jiayu (戎嘉余)1; Huang, Bing (黄冰)1; Percival, Ian G.3; Luan, Xiaocong (栾晓聪)1,2; Wei, Xin (魏鑫)1,4
2018-11-01
Source PublicationGEOLOGICAL JOURNAL
ISSN0072-1050
Volume53Issue:6Pages:3019-3029
Abstract

Richly fossiliferous Hirnantian shelly strata of near-shore facies in northern Guizhou, South China, known as the Kuanyinchiao Formation, superbly record glacioeustatic sea-level fluctuations and benthic faunal turnover. Recent studies of the temporal and spatial distribution of these carbonates and shelly fossils permit a critical stratigraphic revision and establishment of a robust regional stratigraphic correlation. The formation is revised to include three informal subdivisions, that is, units A, B, and C, in ascending order. Unit B of the formation typically is dominated by peloidal or oolitic grainstones, and unit C is composed of skeletal wackestone and calcareous mudstone, both units sharing distinctive coral and brachiopod faunas. This contrasts sharply with unit A of the formation, consisting of mudstone, silty mudstone, or calcareous mudstone, that yields the cool-water Hirnantia fauna and associated coral fauna. In view of the presence of carbonate ooids and peloids, rugose corals, and a distinctive brachiopod assemblage, all indicative of warm-water conditions, unit B, as well as unit C yielding the same shelly fauna, is interpreted as representing postglacial sedimentation immediately following the major Hirnantian glaciation, thus marking a significant climatic shift. Similar warm-water carbonate rocks have been recognized in a number of regions along the margin of the Qianzhong Oldland, including Bijie, Renhuai, Tongzi, and Fenggang of northern Guizhou. Such a vast distribution area of these rocks indicates that postglacial carbonates are more widespread on the Yangtze Platform of South China than previously thought, providing a rare window into rocks and fossils of the survival interval immediately following the extinction event associated with the Hirnantian glacial episodes.

KeywordHirnantian Ordovician Postglacial Carbonates Stratigraphy South China
DOI10.1002/gj.3140
Language英语
WOS KeywordSouth China ; Yangtze Platform ; Latest ; Fauna ; Graptolite ; Fossils ; Sweden
Funding ProjectNational Natural Science Foundation of China[41602008] ; National Natural Science Foundation of China[41290260] ; National Natural Science Foundation of China[41521061] ; National Natural Science Foundation of China[41472006]
WOS Research AreaGeology
WOS SubjectGeosciences, Multidisciplinary
WOS IDWOS:000450653800038
Funding OrganizationNational Natural Science Foundation of China
PublisherWILEY
Citation statistics
Document Type期刊论文
Identifierhttp://ir.nigpas.ac.cn/handle/332004/16242
Collection中国科学院南京地质古生物研究所
其他
Corresponding AuthorWang, Guangxu (王光旭)
Affiliation1.Chinese Acad Sci, State Key Lab Palaeobiol & Stratig, Nanjing Inst Geol & Palaeontol, Nanjing 210008, Jiangsu, Peoples R China
2.Univ Chinese Acad Sci, Beijing, Peoples R China
3.Geol Survey New South Wales, Londonderry, NSW, Australia
4.Univ Sci & Technol China, Hefei, Anhui, Peoples R China
Recommended Citation
GB/T 7714
Wang, Guangxu ,Zhan, Renbin ,Rong, Jiayu ,et al. Exploring the end-Ordovician extinctions in Hirnantian near-shore carbonate rocks of northern Guizhou, SW China: A refined stratigraphy and regional correlation[J]. GEOLOGICAL JOURNAL,2018,53(6):3019-3029.
APA Wang, Guangxu .,Zhan, Renbin .,Rong, Jiayu .,Huang, Bing .,Percival, Ian G..,...&Wei, Xin .(2018).Exploring the end-Ordovician extinctions in Hirnantian near-shore carbonate rocks of northern Guizhou, SW China: A refined stratigraphy and regional correlation.GEOLOGICAL JOURNAL,53(6),3019-3029.
MLA Wang, Guangxu ,et al."Exploring the end-Ordovician extinctions in Hirnantian near-shore carbonate rocks of northern Guizhou, SW China: A refined stratigraphy and regional correlation".GEOLOGICAL JOURNAL 53.6(2018):3019-3029.
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