globalchange  > 过去全球变化的重建
DOI: 10.1016/j.palaeo.2014.11.022
论文题名:
Local overprints on the global carbonate δ13C signal in Devonian-Carboniferous boundary successions of South China
作者: Qie W.; Liu J.; Chen J.; Wang X.; Mii H.-S.; Zhang X.; Huang X.; Yao L.; Algeo T.J.; Luo G.
刊名: Palaeogeography, Palaeoclimatology, Palaeoecology
ISSN: 0031-0182
出版年: 2015
卷: 418
起始页码: 290
结束页码: 303
语种: 英语
英文关键词: Carbon cycle ; Carbon isotope ; Eustasy ; Hangenberg Event ; Mass extinction
英文摘要: An integrated study of the litho-, bio-, and chemostratigraphy of the Devonian-Carboniferous boundary at four sections (Qilinzhai, Malanbian, Gedongguan and Long'an) in South China was undertaken in order to better understand paleoenvironmental changes and controls on δ13Ccarb variation during the Hangenberg Crisis. Sedimentological data record a major regression in the Middle Siphonodella praesulcata Zone, which coincided with the Hangenberg Extinction (HE) in South China. Our new δ13Ccarb data document a negative δ13Ccarb shift near the base of the Middle S. praesulcata Zone, which may have been related to the HE. Prior to and during the HE, respiration of organic matter contributed abundant 12C-enriched dissolved inorganic carbon (DIC) to the restricted Nanning carbonate platform, resulting in a negative vertical δ13CDIC gradient in the study area. In the Upper S. praesulcata Zone, all four sections exhibit a positive δ13Ccarb shift, suggesting that a vigorous biological pump existed in the aftermath of the latest Devonian glaciation. However, peak δ13Ccarb values differ markedly among the study sections, suggesting that local carbon cycling processes played an important role during the initial post-glacial transgression. © 2014 Elsevier B.V.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/69065
Appears in Collections:过去全球变化的重建

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作者单位: Key Laboratory of Economic Stratigraphy and Palaeogeography, Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences, Nanjing, China; State Key Laboratory of Geobiology and Environmental Geology, China University of Geosciences, Wuhan, China; Department of Earth Sciences, National Taiwan Normal University, Taipei, Taiwan; Faculty of Earth Science, China University of Geosciences, Wuhan, China; State Key Laboratory of Geological Processes and Mineral Resources, China University of Geosciences, Wuhan, China; Department of Geology, University of Cincinnati, Cincinnati, OH, United States

Recommended Citation:
Qie W.,Liu J.,Chen J.,et al. Local overprints on the global carbonate δ13C signal in Devonian-Carboniferous boundary successions of South China[J]. Palaeogeography, Palaeoclimatology, Palaeoecology,2015-01-01,418
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