globalchange  > 过去全球变化的重建
DOI: 10.1016/j.palaeo.2013.09.029
论文题名:
Depositional environments for stratiform witherite deposits in the Lower Cambrian black shale sequence of the Yangtze Platform, southern Qinling region, SW China: Evidence from redox-sensitive trace element geochemistry
作者: Pi D.-H.; Jiang S.-Y.; Luo L.; Yang J.-H.; Ling H.-F.
刊名: Palaeogeography, Palaeoclimatology, Palaeoecology
ISSN: 0031-0182
出版年: 2014
卷: 398
起始页码: 125
结束页码: 131
语种: 英语
英文关键词: China ; Qinling ; Redox condition ; Redox-sensitive metals ; Witherite deposits
英文摘要: A very large stratiform witherite mineralization occurs in Lower Cambrian black shales and siliceous rocks in the southern Qinling region of SW China. Two types of witherite ores are divided according to their colors, i.e., the white ores and the dark-gray ores. We analyzed a number of redox-sensitive trace elements in both the white and dark-gray ores from various witherite deposits. The redox-sensitive metal concentrations and the distribution of the two types of ores provide good evidence for their depositional redox conditions in the Early Cambrian ocean in the southern Qinling region. Our geochemical data suggest that both the dark-gray and white witherite ores may have been deposited in reducing environments, with the dark-gray ores deposited in an anoxic-euxinic environment, whereas the white ores deposited under a suboxic-anoxic condition. © 2013 Elsevier B.V.
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被引频次[WOS]:59   [查看WOS记录]     [查看WOS中相关记录]
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/69430
Appears in Collections:过去全球变化的重建

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作者单位: State Key Laboratory of Geological Processes and Mineral Resources, Faculty of Earth Resources, China University of Geosciences, Wuhan 430074, Hubei, China; State Key Laboratory for Mineral Deposits Research, Department of Earth Sciences, Nanjing University, Nanjing 210093, China; Collaborative Innovation Center for Scarce and Strategic Mineral Resources, China University of Geosciences, Wuhan 430074, Hubei, China

Recommended Citation:
Pi D.-H.,Jiang S.-Y.,Luo L.,et al. Depositional environments for stratiform witherite deposits in the Lower Cambrian black shale sequence of the Yangtze Platform, southern Qinling region, SW China: Evidence from redox-sensitive trace element geochemistry[J]. Palaeogeography, Palaeoclimatology, Palaeoecology,2014-01-01,398
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