中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Meso-Neoproterozoic sedimentary formation in the southern margin of the North China Craton and its geological implications

文献类型:期刊论文

作者Hu GuoHui1,2; Zhao TaiPing1,3; Zhou YanYan4; Wang ShiYan5
刊名ACTA PETROLOGICA SINICA
出版日期2013-07-01
卷号29期号:7页码:2491-2507
关键词North China Craton Wufoshan Group Ruyang Group Guandaokou Group Stratigraphic comparison Provenance
ISSN号1000-0569
文献子类Article
英文摘要Meso-Neoproterozoic terrigenous elastic and carbonate rocks cover the metamorphic crystalline basement with angular unconformity in the southern margin of the North China Craton (NCC), which can be divided into Songshan-Jishan, Mianchi-Queshan and Xiong' ershan stratigraphic provinces. The Songshan-Jishan stratigraphic province, in the northeast of the Xiong' er basin, is composed of siliceous elastic rocks. The Mianchi-Queshan province, in the northern margin of the Xiong' er basin, consists of the transitional facies of siliceous clastic-carbonate rocks. The Xiong' ershan province, in the southern margin of the basin, is mainly composed of carbonate rocks. Based on their stratigraphic and petrologic characteristics, these sedimentary sequences formed in typical fluvial-marine environment with water depth shallowing from south to north. They can be divided into low sea depth, transgression and high sea depth depositional system accordingly. The petrologic and geochemical signatures show that these sedimentary rocks sourced from post-Archean felsic components with minor basic rocks and formed in a passive continental margin during Mesoproterozoic. However, the Neoproterozoic sequences formed in sedimentary basin related to a continental arc. It implies that more crustal activities and distinct changes in tectonic settings from passive to active continental margin from Mesoproterozoic to Neoproterozoic, a possible effect of the early tectonic events of the Qinling Orogenic Belt. Laser ablation ICP-MS U-Pb dating of detrital zircons from these sedimentary sequences yields ages ranging from ca. similar to 1. 50Ga to 2. 70Ga with most Paleoproterozoic ages (1. 70 similar to 2. 40Ga) and minor Archean ages, indicating the detritus mainly sourced from Paleoproterozoic geologic bodies. The youngest ages at the bottom of the sequences of similar to 1600Ma can constrain the maximum age of deposition. The pronounced age peak at 1. 93Ga corresponds to the significant Early Precambrian metamorphic event of the NCC. All detrital zircons have obvious negative to moderately positive epsilon(Hf)(t) values from -20 to +6, indicating the contribution of juvenile materials with positive epsilon(Hf)(t) values and reworking of Archean crustal materials with negative epsilon(Hf)(t) values. The Hf model ages (t(DM)(C)) range from 3. 8Ga to 2. 3Ga and cluster between 3. OGa and 2. 6Ga with a peak at similar to 2. 75Ga, implying the major crustal growth occurred at Late Archean.
WOS关键词RARE-EARTH-ELEMENTS ; U-PB AGES ; CONTINENTAL-CRUST ; DETRITAL ZIRCONS ; HENAN PROVINCE ; GEOCHEMICAL CONSTRAINTS ; XIONGER GROUP ; PROVENANCE ; EVOLUTION ; ROCKS
WOS研究方向Geology
语种英语
WOS记录号WOS:000322926000017
出版者SCIENCE PRESS
源URL[http://ir.iggcas.ac.cn/handle/132A11/87528]  
专题中国科学院地质与地球物理研究所
通讯作者Hu GuoHui
作者单位1.Chinese Acad Sci, Guangzhou Inst Geochem, Key Lab Mineral & Metallogeny, Guangzhou 510640, Guangdong, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.NW Univ Xian, State Key Lab Continental Dynam, Xian 710069, Peoples R China
4.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China
5.Henan Inst Geol Survey, Zhengzhou 450001, Peoples R China
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Hu GuoHui,Zhao TaiPing,Zhou YanYan,et al. Meso-Neoproterozoic sedimentary formation in the southern margin of the North China Craton and its geological implications[J]. ACTA PETROLOGICA SINICA,2013,29(7):2491-2507.
APA Hu GuoHui,Zhao TaiPing,Zhou YanYan,&Wang ShiYan.(2013).Meso-Neoproterozoic sedimentary formation in the southern margin of the North China Craton and its geological implications.ACTA PETROLOGICA SINICA,29(7),2491-2507.
MLA Hu GuoHui,et al."Meso-Neoproterozoic sedimentary formation in the southern margin of the North China Craton and its geological implications".ACTA PETROLOGICA SINICA 29.7(2013):2491-2507.

入库方式: OAI收割

来源:地质与地球物理研究所

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