Late Quaternary right-lateral slip rates of faults adjacent to the lake Qinghai, northeastern margin of the Tibetan Plateau

Research Article| September 01, 2011 Late Quaternary right-lateral slip rates of faults adjacent to the lake Qinghai, northeastern margin of the Tibetan Plateau Dao-Yang Yuan; Dao-Yang Yuan † 1Lanzhou Institute of Seismology, China Earthquake Administration, Lanzhou 730000, China †E-mail: yuandaoyang@163.com Search for other works by this author on: GSW Google Scholar Jean-Daniel Champagnac; Jean-Daniel Champagnac 2Swiss Federal Institute of Technology (EHTZ), CH-8092, Zurich, Switzerland3Department of Geological Sciences, and Cooperative Institute for Research in Environmental Sciences, University of Colorado, Boulder, Colorado 80309, USA Search for other works by this author on: GSW Google Scholar Wei-Peng Ge; Wei-Peng Ge 1Lanzhou Institute of Seismology, China Earthquake Administration, Lanzhou 730000, China Search for other works by this author on: GSW Google Scholar Peter Molnar; Peter Molnar 3Department of Geological Sciences, and Cooperative Institute for Research in Environmental Sciences, University of Colorado, Boulder, Colorado 80309, USA Search for other works by this author on: GSW Google Scholar Pei-Zhen Zhang; Pei-Zhen Zhang 4State Key Laboratory of Earthquake Dynamics, Institute of Geology, China Earthquake Administration, Beijing 100029, China Search for other works by this author on: GSW Google Scholar Wen-Jun Zheng; Wen-Jun Zheng 4State Key Laboratory of Earthquake Dynamics, Institute of Geology, China Earthquake Administration, Beijing 100029, China Search for other works by this author on: GSW Google Scholar Hui-Ping Zhang; Hui-Ping Zhang 4State Key Laboratory of Earthquake Dynamics, Institute of Geology, China Earthquake Administration, Beijing 100029, China Search for other works by this author on: GSW Google Scholar Xing-Wang Liu Xing-Wang Liu 1Lanzhou Institute of Seismology, China Earthquake Administration, Lanzhou 730000, China Search for other works by this author on: GSW Google Scholar Author and Article Information Dao-Yang Yuan † 1Lanzhou Institute of Seismology, China Earthquake Administration, Lanzhou 730000, China Jean-Daniel Champagnac 2Swiss Federal Institute of Technology (EHTZ), CH-8092, Zurich, Switzerland3Department of Geological Sciences, and Cooperative Institute for Research in Environmental Sciences, University of Colorado, Boulder, Colorado 80309, USA Wei-Peng Ge 1Lanzhou Institute of Seismology, China Earthquake Administration, Lanzhou 730000, China Peter Molnar 3Department of Geological Sciences, and Cooperative Institute for Research in Environmental Sciences, University of Colorado, Boulder, Colorado 80309, USA Pei-Zhen Zhang 4State Key Laboratory of Earthquake Dynamics, Institute of Geology, China Earthquake Administration, Beijing 100029, China Wen-Jun Zheng 4State Key Laboratory of Earthquake Dynamics, Institute of Geology, China Earthquake Administration, Beijing 100029, China Hui-Ping Zhang 4State Key Laboratory of Earthquake Dynamics, Institute of Geology, China Earthquake Administration, Beijing 100029, China Xing-Wang Liu 1Lanzhou Institute of Seismology, China Earthquake Administration, Lanzhou 730000, China †E-mail: yuandaoyang@163.com Publisher: Geological Society of America Received: 15 Apr 2010 Revision Received: 04 Oct 2010 Accepted: 12 Nov 2010 First Online: 08 Mar 2017 Online ISSN: 1943-2674 Print ISSN: 0016-7606 © 2011 Geological Society of America GSA Bulletin (2011) 123 (9-10): 2016–2030. https://doi.org/10.1130/B30315.1 Article history Received: 15 Apr 2010 Revision Received: 04 Oct 2010 Accepted: 12 Nov 2010 First Online: 08 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn Email Permissions Search Site Citation Dao-Yang Yuan, Jean-Daniel Champagnac, Wei-Peng Ge, Peter Molnar, Pei-Zhen Zhang, Wen-Jun Zheng, Hui-Ping Zhang, Xing-Wang Liu; Late Quaternary right-lateral slip rates of faults adjacent to the lake Qinghai, northeastern margin of the Tibetan Plateau. GSA Bulletin 2011;; 123 (9-10): 2016–2030. doi: https://doi.org/10.1130/B30315.1 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyGSA Bulletin Search Advanced Search Abstract By combining terrace riser offsets with terrace ages dated by 14C, optically stimulated luminescence (OSL), and 10Be techniques, we determine average slip rates of 1.1 ± 0.3 mm/yr and 1.2 ± 0.4 mm/yr for the Elashan and Riyueshan faults, two north-northwest–trending, right-lateral, strike-slip faults west and east of the lake Qinghai in the northeastern margin of the Tibetan Plateau. These faults are conjugate to the major easterly trending, left-lateral Altyn Tagh, Haiyuan-Qilianshan, and Kunlun faults, and they contribute to the subdivision of the region between the Haiyuan-Qilianshan and Kunlun faults into small blocks tens to ∼100 km in dimension. The relatively low slip rates in this region reflect distributed deformation. The total right-lateral offsets of geological contacts are ∼9–12 km along the Elashan fault and ∼11–12 km for the northern segment of the Riyueshan fault. If long-term slip rates were constant during late Cenozoic time, dates of initiation of dextral movement would be 9 or 10 ± 3 Ma for the two strike-slip faults, concurrent with onsets or acceleration of tectonic deformation in Cenozoic basins nearby. Our study highlights a stage of tectonic deformation in the northeastern margin of the Tibetan Plateau beginning since ca. 8–12 Ma, tens of millions of years after the collision between India and Eurasia began. 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