Paleo-environmental cyclicity in the Early Silurian Yangtze Sea (South China): Tectonic or glacio-eustatic control?

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• 作者：Zhanhong Liu^a ; ^b ; Thomas J. Algeo^b ; ^c ; ^d ; ^{Thomas.Algeo@uc.edu} ; Xusheng Guo^e ; Junxuan Fan^f ; ^{fanjunxuan@gmail.com} ; Xuebin Du^a ; Yongchao Lu^a
• 关键词：Eustasy ; Sea level ; Hirnantian ; Redox ; Organic carbon ; Kwangsian orogeny
• 刊名：Palaeogeography, Palaeoclimatology, Palaeoecology
• 出版年：2017
• 出版时间：15 January 2017
• 年：2017
• 卷：466
• 期：Complete
• 页码：59-76
• 全文大小：3819 K
• 卷排序：466

文摘

The Lower Silurian Yangtze Platform records regular variations in sea-level elevations. At least 3 sea-level cycles reflect continued growth and decay of continental icesheets. Sea-level falls (glacials) were slow, whereas sea-level rises (interglacials) were rapid. Sea-level rises led to higher productivity and organic C burial and to stronger anoxia. Long-term shallowing during the Early Silurian was due to tectono-epeirogenic uplift.