The carbon and oxygen isotopic compositions and their evolution of the Xixiangchi Group carbonate rocks in Sichuan Basin and their geological implications

被引:0
|
作者
Peng Jia
Wei Li
Yuan-zheng Lu
Ru Fan
Xin Li
Feng Yuan
Yuhang Chen
Ming Li
Yi-yang Zeng
Xin Liu
机构
[1] PetroChina Research Institute of Petroleum Exploration & Development,
[2] CNOOC Research Institute,undefined
[3] PetroChina Southwest Oil & Gasfield Company,undefined
关键词
Sichuan Basin; Xixiangchi Group; Carbon and oxygen isotopes; Paleoenvironment; Geological implications;
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学科分类号
摘要
Carbon and oxygen isotope analysis of Xixiangchi Group shows that the bottom boundary of the Upper Cambrian is defined for the first time. The Xixiangchi Group formed in a high salinity on shore marine sedimentary environment with a warm to dry climate and underwent a slow regression after a rapid transgression in the early and middle stages, In the late stage it entered a rapid regression after a slow transgression.
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页码:755 / 768
页数:13
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