Propagation of surface uplift, lower crustal flow, and Cenozoic tectonics of the southeast margin of the Tibetan Plateau

Abstract

Research Article| October 01, 2006 Propagation of surface uplift, lower crustal flow, and Cenozoic tectonics of the southeast margin of the Tibetan Plateau Lindsay M. Schoenbohm; Lindsay M. Schoenbohm 1Department of Geological Sciences, 275 Mendenhall Laboratory, The Ohio State University, 125 South Oval Mall, Columbus, Ohio 43210, USA Search for other works by this author on: GSW Google Scholar B. Clark Burchfiel; B. Clark Burchfiel 2Department of Earth, Atmospheric and Planetary Sciences, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, USA Search for other works by this author on: GSW Google Scholar Chen Liangzhong Chen Liangzhong 3Yunnan Institute of Geological Sciences, 87 Donfeng Alley, Donfeng East Road, Kunming 650051, China Search for other works by this author on: GSW Google Scholar Geology (2006) 34 (10): 813–816. https://doi.org/10.1130/G22679.1 Article history received: 09 Feb 2006 rev-recd: 01 May 2006 accepted: 02 May 2006 first online: 09 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Get Permissions Search Site Citation Lindsay M. Schoenbohm, B. Clark Burchfiel, Chen Liangzhong; Propagation of surface uplift, lower crustal flow, and Cenozoic tectonics of the southeast margin of the Tibetan Plateau. Geology 2006;; 34 (10): 813–816. doi: https://doi.org/10.1130/G22679.1 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 SocietyGeology Search Advanced Search Abstract Surface uplift of the southeast margin of the Tibetan Plateau is interpreted to have progressed from the northwest, near the Tibetan border, to the southeast, in the Red River region of the central Yunnan Province, China. This interpretation is based on existing thermochronologic data and new mapping and sedimentologic and paleobotanic data demonstrating incision in the headwaters of the Red River in Pliocene time or later. Together with previously published data demonstrating surface uplift and a gradient in crustal thickness in the absence of upper crustal shortening, this is strong evidence for growth of the southeast margin of the Tibetan Plateau through lower crustal flow. Displacement along the Ailao Shan–Red River shear zone slowed or ceased in early Pliocene time, and the Xianshuihe-Xiaojiang fault system initiated, accommodating diffuse deformation and rotation around the Eastern Himalayan syntaxis. We suggest a kinematic link between the change in mode of deformation and the introduction of a weak crustal layer through lower crustal flow. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.