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
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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 |
推荐引用方式 GB/T 7714 | 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. |
入库方式: OAI收割
来源:地质与地球物理研究所
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