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作者机构:Key Lab of Submarine Geosciences and Prospecting TechniquesMOEand Institute for Advanced Ocean StudyCollege of Marine GeosciencesOcean University of ChinaQingdao 266100China State Key Laboratory of Continental DynamicsNorthwest UniversityXi’an 710069China Laboratory for Marine Mineral ResourcesQingdao National Laboratory for Marine Science and TechnologyQingdao 266237China Research Institute of Petroleum Exploration and DevelopmentPetroChinaBeijing 100083China
出 版 物:《Geoscience Frontiers》 (地学前缘(英文版))
年 卷 期:2020年第11卷第2期
页 面:679-696页
核心收录:
学科分类:070902[理学-地球化学] 070903[理学-古生物学与地层学(含:古人类学)] 0709[理学-地质学] 07[理学]
基 金:financially funded by the National Key Research and Development Program of China (No. 2016YFC0601002) Opening Foundation of State Key Laboratory of Continental Dynamics, Northwest University (No. 17LCD05) National Science and Technology Major Project (No. 2016ZX05004001) National Natural Science Foundation of China (No. 41602042) Fundamental Research Funds for the Central Universities (No. 201912026) supported by Taishan Scholar Program to Prof. Sanzhong Li
主 题:Detrital zircon North China craton Proterozoic Tectonics U–Pb ages Hf isotope
摘 要:Paleo-to Mesoproterozoic sedimentary rocks in the southern margin of the North China Craton(NCC)are represented by the Ruyang and Luoyu *** studied the sedimentary rocks from the Yunmengshan and Beidajian formations of the Ruyang Group and the Cuizhuang and Sanjiaotang formations of the Luoyu *** zircon grains from these formations have U–Pb age populations of 3.64–3.31 Ga,2.96–2.86 Ga,2.72–2.59 Ga,2.56–2.47 Ga,2.45–2.0 Ga,1.99–1.85 Ga and 1.84–1.65 *** geochemical features of the sedimentary rocks suggest that some of the sediments were sourced from intermediate to felsic magmatic *** age groups of the detrital zircon are roughly consistent with the tectono-thermal events in the southern margin of the *** Hf isotopic compositions of detrital zircon from the sedimentary rocks in Ruyang and Luoyu groups suggest that significant crustal growth and reworking of the NCC took place during the Neoarchean and early-to mid-Paleoproterozoic,while crustal reworking at the Paleoarchean and late-Paleoproterozoic,and crustal growth at the *** suggest the depositional times of the Ruyang Group and Luoyu Group are constrained to no older than 1.75–1.7 Ga and 1.7–1.65 Ga,*** of late-Paleoproterozoic basins related to the strike slip and extrusion tectonics that cross-cut the NCC during the late Paleoproterozoic(1.75 Ga),and the late Paleoproterozoic sedimentation once isochronous developed in the southern margin of the NCC through the Taihang region of the interior NCC and linked the Yanshan–Liaoxi regions of the northern NCC.