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LI Xin, LUO Shun-she, KUANG Hong-wei, SU Jie, YIN Xiao. Carbon and oxygen isotopic evolution in the carbonate rocks from the Wumishan Formation in Lingyuan,western Liaoning[J]. Sedimentary Geology and Tethyan Geology, 2009, 29(2): 107-111.
Citation: LI Xin, LUO Shun-she, KUANG Hong-wei, SU Jie, YIN Xiao. Carbon and oxygen isotopic evolution in the carbonate rocks from the Wumishan Formation in Lingyuan,western Liaoning[J]. Sedimentary Geology and Tethyan Geology, 2009, 29(2): 107-111.
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Carbon and oxygen isotopic evolution in the carbonate rocks from the Wumishan Formation in Lingyuan,western Liaoning

  • 1. Key Laboratory of Oil Resources, Yangtze University, Jingzhou 434023, Hubei, China;

  • 2. School of Geosciences, Yangtzi University, Jingzhou 434023, Hubei, China;

  • 3. School of Geophysics and Oil Resources, Yangtze University, Jingzhou 434023, Hubei, China

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  • Published Date: June 29, 2009
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    • Abstract
  • The original deposits of the carbonate rocks from the Wumishan Formation in Lingyuan,western Liaoning are explored on the basis of carbon and oxygen isotopic and Mn/Sr ratios.The δ13CPDB values range between-2‰ and 2‰ and δ18O values range between-10‰ and-4‰,with an average of 0.15‰ and-6.2‰,respectively.The δ13C values exhibit a markedly positive shift in the carbonate rocks from the upper and middle parts of the first member of the Wumishan Formation.This shift may be caused by abundant algal production and organic carbon increase.The climatic cooling down and glaciation gave rise to the increase of δ18O values,especially in the levels with negative δ13C values.The carbon and oxygen isotopic evolution in the carbonate rocks may be correlated to the sea-level changes.
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