Deposition age of the Sangwon Supergroup in the Pyongnam basin (Korea) and the Early Tonian negative carbon isotope interval

CORC > 地质与地球物理研究所 > 中国科学院地质与地球物理研究所 > 岩石圈演化国家重点实验室

	Deposition age of the Sangwon Supergroup in the Pyongnam basin (Korea) and the Early Tonian negative carbon isotope interval
	Park, HyonUk 1; Zhai MingGuo 2; Yang, JongHyok 1; Peng Peng 2; Kim, JongNam 1; Zhang YanBin 2; Kim, MyongChol 1; Park, Ung 1; Feng LianJun 2
刊名	ACTA PETROLOGICA SINICA
	2016-07-01
卷号	32 期号:7 页码:2181-2195
关键词	Korea Pyongnam basin Sangwon Supergroup Detrital zircon age Carbon isotope Deposition age
文献子类	Article
英文摘要	The relationship of the Pyongnam basin with other basins in the Eastern North China Craton (Sino-Korean Craton) is in debating; and the deposition age is one key to solve this. The strata in the Pyongnam basin are mainly composed of the Sangwon Supergroup, which comprises the Jikhyon Group, the Sadangu Group, the Muckchon Group, the Myoransan Group and the Yontan Group from bottom to up. The Jikhyon Group is the lowermost formation and comprises of mainly terrestrial clastic sediments. Detrital zircons were separated from the clastic rocks of the Jikhyon Group of both the 'north-type' and 'south-type' strata of the Pyongnam basin, and their LA-ICP-MS U-Pb ages constrain the maximum deposition age to be 1100Ma. It further suggests that there are no differences either in deposition age or provenance between the so-called 'north-type' and 'south-type' strata. As the mafic sills in the Muckchon Group were intruded at similar to 900Ma, we suggest that the majority of the Sangwon Supergroup was deposited at 1000 similar to 900Ma, with the Yontan Group to be slightly younger. This indicates that the Pyongnam basin is contemporary with those in the Xu-Huai and Lv-Da basins. The variation of delta C-13 values of the carbonate samples from the Sangwon Supergroup shows a distinct negative drifting(delta C-13 value as low as -6 parts per thousand similar to -5 parts per thousand) in the Mukchon Group. As the mafic sills in the Mukchon Group were emplaced at similar to 900Ma, we suggest that this negative drifting of delta C-13 values happened slightly older than similar to 900Ma, and is possibly related to a coeval magmatic event.
WOS关键词	NORTH CHINA CRATON ; SEAWATER ; PB ; EVOLUTION ; EVENTS ; GEOCHRONOLOGY ; GEOCHEMISTRY ; STRATIGRAPHY ; CONSTRAINTS ; SR-87/SR-86
WOS研究方向	Geology
语种	英语
WOS记录号	WOS:000381327100018
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/53339]
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, North Korea 2.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China
推荐引用方式 GB/T 7714	Park, HyonUk,Zhai MingGuo,Yang, JongHyok,et al. Deposition age of the Sangwon Supergroup in the Pyongnam basin (Korea) and the Early Tonian negative carbon isotope interval[J]. ACTA PETROLOGICA SINICA,2016,32(7):2181-2195.
APA	Park, HyonUk.,Zhai MingGuo.,Yang, JongHyok.,Peng Peng.,Kim, JongNam.,...&Feng LianJun.(2016).Deposition age of the Sangwon Supergroup in the Pyongnam basin (Korea) and the Early Tonian negative carbon isotope interval.ACTA PETROLOGICA SINICA,32(7),2181-2195.
MLA	Park, HyonUk,et al."Deposition age of the Sangwon Supergroup in the Pyongnam basin (Korea) and the Early Tonian negative carbon isotope interval".ACTA PETROLOGICA SINICA 32.7(2016):2181-2195.