Local overprints on the global carbonate δ13C signal in Devonian-Carboniferous boundary successions of South China

Wenkun Qie, Jiangsi Liu, Jitao Chen, Xiangdong Wang, Horng-Sheng Mii, Xionghua Zhang, Xing Huang, Le Yao, Thomas J. Algeo, Genming Luo

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)290-303
Number of pages14
JournalPalaeogeography, Palaeoclimatology, Palaeoecology
Volume418
DOIs
Publication statusPublished - 2015 Jan 5

Fingerprint

Devonian-Carboniferous boundary
carbonates
extinction
carbonate
China
biological pump
chemostratigraphy
transgressive segregation
carbon
dissolved inorganic carbon
glaciation
carbonate platform
biostratigraphy
Postglacial
pumps
transgression
respiration
organic matter

Keywords

  • Carbon cycle
  • Carbon isotope
  • Eustasy
  • Hangenberg Event
  • Mass extinction

ASJC Scopus subject areas

  • Oceanography
  • Ecology, Evolution, Behavior and Systematics
  • Earth-Surface Processes
  • Palaeontology

Cite this

Local overprints on the global carbonate δ13C signal in Devonian-Carboniferous boundary successions of South China. / Qie, Wenkun; Liu, Jiangsi; Chen, Jitao; Wang, Xiangdong; Mii, Horng-Sheng; Zhang, Xionghua; Huang, Xing; Yao, Le; Algeo, Thomas J.; Luo, Genming.

In: Palaeogeography, Palaeoclimatology, Palaeoecology, Vol. 418, 05.01.2015, p. 290-303.

Research output: Contribution to journalArticle

Qie, Wenkun ; Liu, Jiangsi ; Chen, Jitao ; Wang, Xiangdong ; Mii, Horng-Sheng ; Zhang, Xionghua ; Huang, Xing ; Yao, Le ; Algeo, Thomas J. ; Luo, Genming. / Local overprints on the global carbonate δ13C signal in Devonian-Carboniferous boundary successions of South China. In: Palaeogeography, Palaeoclimatology, Palaeoecology. 2015 ; Vol. 418. pp. 290-303.
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