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Characteristics and evolution of klippes structure in Sandui area, Guangyuan, Sichuan Province

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doi: 10.3969/j.issn.1007-3701.2013.03.002
Authors:Han Wenwen; Li Yang
Author Affiliations:Primary:
No. 280 Institute of China National Nuclear Corporation, Guanghan, China
Other:
Chengdu University of Technology, Institute of Sedimentary Geology, China
Volume Title:Huanan Dizhi yu Kuangchan Geology and Mineral Resources of South China
Source:Huanan Dizhi yu Kuangchan = Geology and Mineral Resources of South China, 29(3), p.177-182. Publisher: Editorial Department of Geology and Mineral Resources of South China, Yichang City, China. ISSN: 1007-3701
Publication Date:2013
Note:In Chinese with English summary. 10 refs.; illus.
Summary:Varous klippes structures are found in Longmenshan oregenic belt and attracted the attention of geologists and a number of perspectives are provided for formation mechanism of those structures. However, some detail about property, genetic mechanism and evolution of those klippes are debated. Based on the field geologic investigation, the mechanisms, evolution and formation time of klippes in Sandui area, Guangyuan, Sichuan province, are analyzed. The klippes were formed during the nappe process from Northwest to southeast. Root of the lower klippe in Sanmengya area, composed of Cambrian strata, is located in Xiejiagou thrust nappe. The lower part was formed much earlier than the upper part of the klippe, may be earlier than Yanshanian, and destroyed by Himalayan activities. Root of the upper klippe, composed of Silurian strata, is covered by Lishuaba thrust nappe. The upper klippe is synchronic to foreland molasse(Dayi conglomerate) accumulation, which was formed in Pliocene(N2)-early Pleistocene(Q1).
Subjects:Cenozoic; Faults; Fold and thrust belts; Klippen; Lower Pleistocene; Nappes; Neogene; Neotectonics; Pleistocene; Quaternary; Tectonics; Tertiary; Thrust faults; Asia; China; Far East; Sichuan China; Guangyuan China; Lishuba Fault; Sandui China
Coordinates:N323022 N323022 E1053703 E1053703
Record ID:783776-2
Copyright Information:GeoRef, Copyright 2021 American Geosciences Institute.
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