中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Characteristics of carbon isotope of the Ediacaran and Lower Cambrian strata in the Pyongnam basin, DPR Korea

文献类型:期刊论文

作者Kim MyongChol1; Yang JongHyoki1,2; Peng Peng2; Zhai MingGuo2; Pak HyonUki1; Feng LianJun2; Ri ChungIl1; Ju SongHyok1
刊名ACTA PETROLOGICA SINICA
出版日期2016
卷号32期号:10页码:3180-3186
关键词Korean Peninsula Sino-Korea block (North China block) Ediacaran Lower Cambrian Carbon isotope Negative anomaly
文献子类Article
英文摘要The Pyongnam basin of the Sino-Korean block (North China block) lies in Middle Korean Peninsula and contains extensive Neoproterozoic to Early Paleozoic strata. Based on fossils, it is generally accepted that the Yontan Group (Pirangdong and Rungri Fms. from bottom up) belongs to the Ediacaran while the Pyongsan and Junghwa Fms. of the Hwangju (Super-) group belong to the Lower Cambrian. However it is yet unclear whether the Yontan Group records glaciation (e.g., the Gaskiers glaciations) and where is the boundary between the Neoproterozoic and the Early Paleozoic. Carbon and oxygen isotope study show that the delta C-13 values start from + 2 parts per thousand at the bottom, vary between + 2 parts per thousand similar to +6 parts per thousand, and finally back to +2 parts per thousand in the Pirangdong Fm., from 0 to -7%o in the Rungri Fm., between -3.1 parts per thousand and 0 parts per thousand in the Pyongsan Fm., and from -1.2 parts per thousand to + 1.9 parts per thousand in the Junghwa Fm. The data negate the previous thought that there is tillite in the Pirangdong Fm., which recorded the Gaskiers period. The negative drifting in the Rungri Fm. cannot match those during the Gaskiers or Marinoan period glaciation but is possibly corresponding to the drifting at the end of the Ediacaran. Based on a comparison of the carbon isotope variations with the global trend, it verifies that the Yontan Group and the Pyongsan and Junghwa Fms. of the Hwangju Group deposit during the Late Ediacaran-Early Cambrian. As there is no clear unconformtiy, the two groups can be regarded as a continuous section of the Late Ediacaran-Early Cambrian, and we propose that the phosphorous and sulphide-bearing black slate in the bottom of the Pyongsan Fm. of the Hwangju Group could be the boundary layer.
WOS关键词CHINA ; AGE
WOS研究方向Geology
语种英语
WOS记录号WOS:000388277000017
源URL[http://ir.iggcas.ac.cn/handle/132A11/53239]  
专题地质与地球物理研究所_岩石圈演化国家重点实验室
作者单位1.State Acad Sci, Inst Geol, Pyongyang 3812100, Dem Rep Korea
2.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China
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Kim MyongChol,Yang JongHyoki,Peng Peng,et al. Characteristics of carbon isotope of the Ediacaran and Lower Cambrian strata in the Pyongnam basin, DPR Korea[J]. ACTA PETROLOGICA SINICA,2016,32(10):3180-3186.
APA Kim MyongChol.,Yang JongHyoki.,Peng Peng.,Zhai MingGuo.,Pak HyonUki.,...&Ju SongHyok.(2016).Characteristics of carbon isotope of the Ediacaran and Lower Cambrian strata in the Pyongnam basin, DPR Korea.ACTA PETROLOGICA SINICA,32(10),3180-3186.
MLA Kim MyongChol,et al."Characteristics of carbon isotope of the Ediacaran and Lower Cambrian strata in the Pyongnam basin, DPR Korea".ACTA PETROLOGICA SINICA 32.10(2016):3180-3186.

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来源:地质与地球物理研究所

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