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Paleo-environmental cyclicity in the Early Silurian Yangtze Sea (South China): Tectonic or glacio-eustatic control?
Liu, ZH; Algeo, TJ; Guo, XS; Fan, JX (樊隽轩); Du, XB; Lu, YC
2017
Source PublicationPalaeogeography, Palaeoclimatology, Palaeoecology
ISSN0031-0182
Volume466Pages:59-76
AbstractThe Yangtze Sea of the South China Craton experienced strong environmental perturbations during the first similar to 5-6 Myr of the Silurian. The Lower Silurian Lungmachi Formation in the Jiaoye-1 drillcore (Chongqing, China) records three sea-level cycles (stratigraphic sequences) characterized by rapid deepening at the base of each cycle followed by slow shallowing. Each deepening event was associated with shifts toward higher marine productivity, more intensely reducing bottomwater conditions, reduced watermass restriction, lower detrital input, and enhanced siliciclastic weathering intensity. We infer control by glacio-eustasy, in which deglacial sea-level rises and concurrent climatic warming triggered the observed environmental changes. Shallowing was associated with renewed glaciation and characterized by the opposite set of conditions. The results of this study thus provide evidence in support of continued continental glaciation during the Early Silurian, i.e., following the termination of the major end-Ordovician Hirnantian glaciation. The study core also exhibits a long-term shallowing trend through the entire Lower Silurian, the origin of which may have been tectono-epeirogenic uplift of the South China Craton during the Kwangsian Orogeny. (C) 2016 Elsevier B.V. All rights reserved.
KeywordEustasy Sea level Hirnantian Redox Organic carbon Kwangsian orogeny
DOI10.1016/j.palaeo.2016.11.007
Indexed BySCI
Language英语
WOS Research AreaPhysical Geography ; Geology ; Paleontology
WOS SubjectGeography, Physical ; Geosciences, Multidisciplinary ; Paleontology
WOS IDWOS:000392766900005
PublisherELSEVIER SCIENCE BV
Citation statistics
Cited Times:25[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.nigpas.ac.cn/handle/332004/13730
Collection中国科学院南京地质古生物研究所
Corresponding AuthorAlgeo, TJ
Recommended Citation
GB/T 7714
Liu, ZH,Algeo, TJ,Guo, XS,et al. Paleo-environmental cyclicity in the Early Silurian Yangtze Sea (South China): Tectonic or glacio-eustatic control?[J]. Palaeogeography, Palaeoclimatology, Palaeoecology,2017,466:59-76.
APA Liu, ZH,Algeo, TJ,Guo, XS,Fan, JX ,Du, XB,&Lu, YC.(2017).Paleo-environmental cyclicity in the Early Silurian Yangtze Sea (South China): Tectonic or glacio-eustatic control?.Palaeogeography, Palaeoclimatology, Palaeoecology,466,59-76.
MLA Liu, ZH,et al."Paleo-environmental cyclicity in the Early Silurian Yangtze Sea (South China): Tectonic or glacio-eustatic control?".Palaeogeography, Palaeoclimatology, Palaeoecology 466(2017):59-76.
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