Start |Author Index | View Uploaded Presentations | Meeting Information

2015 GSA Annual Meeting in Baltimore, Maryland, USA (1-4 November 2015)

Paper No. 146-1
Presentation Time: 1:30 PM

SINO-US COOPERATION ON DEEP SEISMIC REFLECTION/REFRACTION STUDIES AND EDUCATION FOCUSED ON CONTINENTAL TECTONICS: RESULTS OF COOPERATION ON THE LONGMEN SHAN AND LIUPAN SHAN IN THE EASTERN AND NORTHEASTERN MARGINS OF TIBETAN PLATEAU


GAO, Rui1, XU, Xiao1, WANG, Haiyan1, GUO, Xiaoyu1, LI, Wenhui1, XIONG, Xiaosong1, KELLER, G. Randy2, LIU, Mian3, YIN, An4 and ENCARNACION, John5, (1)State Key Laboratory of Continental Tectonics and Dynamics, Key Laboratory of Earthprobe and Geodynamics, MLR, Institute of Geology, Chinese Academy of Geological Sciences, Beijing, 100037, China, (2)School of Geology and Geophysics, University of Oklahoma, 100 E. Boyd, Norman, OK 73019, (3)Department of Geological Sciences, Univ of Missouri-Columbia, Columbia, MO 65211, (4)Department of Earth, Planetary, and Space Sciences, University of California, Los Angeles, Los Angeles, CA 90095, (5)Department of Earth and Atmospheric Sciences, Saint Louis University, St. Louis, MO 63108, xiaoxu0712@gmail.com

Since 2011, the SinoProbe-02-01 working group, a consortium from the Institute of Geology at Chinese Academy of Geological Sciences and the participated USA universities listed above, has collected and co-interpreted an approximately total 1500 km-long deep seismic reflection and refraction lines roughly distributing in the eastern and northeastern margins of the Tibetan Plateau. High-density and near-vertical reflection data provided needed information on crustal structure beneath eastern and northeastern Tibet, which is essential to advance our understanding on the tectonic responses to the ongoing Himalayan orogeny. Integrated analysis of the seismic reflection profiles and other geophysical and geological data indicated that crustal shortening, instead of lower crustal flow, is a primary driver for the uplift and expansion of eastern and northeastern Tibet. Even though, differentiation is evident between the eastern and northeastern Tibetan Plateau in the patterns of uplift and expansion, in which, crustal-scale deformation is suggested to have participated in the oblique extrusion and uplift of the easternmost edge of the Tibetan Plateau; while in the northeastern flank of the Tibetan Plateau, decoupled crustal deformation owing to differential structural integrity is accommodated during the subsequent northeastward growth of the plateau, and in addition, crustal shortening, structural integrity, and topographic relief are strongly correlated.

Other people who participated in the Sino-US Cooperated SinoProbe-02-01:

China side:

Hesheng Hou, Hongqiang Li, Hongda Liang, Zhuo Ye, Xingfu Huang, Xinyan Zhang

USA side:

Jefferson C. Chang, Stephen D. Holloway, Galen M. Kaip, Kanglin Xu,

Shane F. Ingate, Gaurang Patel, Guang Chen

Session No. 146

T7. Bridging Two Continents: New Insights into the Mechanisms of Continental Deformation from Sinoprobe Deep Seismic Reflection Profiling And Receiver-Function Studies Of The Lithosphere
Monday, 2 November 2015: 1:30 PM-2:45 PM
Room 347/348 (Baltimore Convention Center)
Geological Society of America Abstracts with Programs. Vol. 47, No. 7, p.383
© Copyright 2015 The Geological Society of America (GSA), all rights reserved. Permission is hereby granted to the author(s) of this abstract to reproduce and distribute it freely, for noncommercial purposes. Permission is hereby granted to any individual scientist to download a single copy of this electronic file and reproduce up to 20 paper copies for noncommercial purposes advancing science and education, including classroom use, providing all reproductions include the complete content shown here, including the author information. All other forms of reproduction and/or transmittal are prohibited without written permission from GSA Copyright Permissions.
Back to: T7. Bridging Two Continents: New Insights into the Mechanisms of Continental Deformation from Sinoprobe Deep Seismic Reflection Profiling And Receiver-Function Studies Of The Lithosphere
Previous Abstract | Next Abstract >>