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Reconstructing marine redox conditions for the transition between Cambrian Series 2 and Cambrian Series 3, Kaili area, Yangtze Platform: Evidence from biogenic sulfur and degree of pyritization
Qingjun Guo;  Harald Strauss;  Yuanlong Zhao;  Xinglian Yang;  Jin Peng;  Yuning Yang;  Yinan Deng
2014
发表期刊Palaeogeography, Palaeoclimatology, Palaeoecology
卷号398页码:144–153
摘要

The transition between Series 2 and Series 3 of the Cambrian Period was a time of environmental perturbations and biological innovations. A generally positive sulfur isotopic composition of sedimentary pyrite with δ34Spyrite values between + 1.7 and + 37.3‰ is consistent with a biological origin via reduction of strongly 34S enriched seawater sulfate. No substantial changes in the redox conditions of the water column are discernible from the DOP record, and the sulfide sulfur isotopic composition is independent of DOP, in particular an excursion towards less 34S enriched values immediately preceding the proposed level of the Cambrian Series 2 to Cambrian Series 3 transition. This level is also characterized by a negative carbonate carbon isotope excursion, believed to reflect the transgressive flooding of the shelf with basinal anoxic waters. Low DOP values would suggest that these might have been ferruginous rather than sulfidic.

关键词Cambrian Series 2 And Cambrian Series 3 Sulfide Sulfur Isotope Degree Of Pyritization Yangtze Platform
收录类别SCI
语种英语
文献类型期刊论文
条目标识符http://ir.gyig.ac.cn/handle/42920512-1/9385
专题环境地球化学国家重点实验室
作者单位1.Center for Environmental Remediation, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China
2.Institut für Geologie und Paläontologie, Westfälische, Wilhelms-Universität Münster, Corrensstrasse 24, 48149 Münster, Germany
3.Institute of Resource and Environmental Engineering, Guizhou University, Guiyang 550002, China
推荐引用方式
GB/T 7714
Qingjun Guo;Harald Strauss;Yuanlong Zhao;Xinglian Yang;Jin Peng;Yuning Yang;Yinan Deng. Reconstructing marine redox conditions for the transition between Cambrian Series 2 and Cambrian Series 3, Kaili area, Yangtze Platform: Evidence from biogenic sulfur and degree of pyritization[J]. Palaeogeography, Palaeoclimatology, Palaeoecology,2014,398:144–153.
APA Qingjun Guo;Harald Strauss;Yuanlong Zhao;Xinglian Yang;Jin Peng;Yuning Yang;Yinan Deng.(2014).Reconstructing marine redox conditions for the transition between Cambrian Series 2 and Cambrian Series 3, Kaili area, Yangtze Platform: Evidence from biogenic sulfur and degree of pyritization.Palaeogeography, Palaeoclimatology, Palaeoecology,398,144–153.
MLA Qingjun Guo;Harald Strauss;Yuanlong Zhao;Xinglian Yang;Jin Peng;Yuning Yang;Yinan Deng."Reconstructing marine redox conditions for the transition between Cambrian Series 2 and Cambrian Series 3, Kaili area, Yangtze Platform: Evidence from biogenic sulfur and degree of pyritization".Palaeogeography, Palaeoclimatology, Palaeoecology 398(2014):144–153.
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