Skip to Main Content
GEOREF RECORD

Mesozoic-Cenozoic evolution of the eastern Kunlun Range, central Tibet, and implications for basin evolution during the Indo-Asian collision

Wu Chen, Andrew V. Zuza, Zhou Zhiguang, Yin An, Michael W. McRivette, Chen Xuanhua, Ding Lin and Geng Jianzhen
Mesozoic-Cenozoic evolution of the eastern Kunlun Range, central Tibet, and implications for basin evolution during the Indo-Asian collision
Lithosphere (April 2019) Pre-Issue Publication

Abstract

The present-day Tibetan plateau, which is the largest highland on Earth, formed primarily due to the India-Asia collision since 50-60 Ma. The development of the plateau has been associated with the Cenozoic development of two large intra-plateau sedimentary basins in north-central Tibet: the Qaidam and Hoh Xil basins to the north and south of the Eastern Kunlun Range, respectively. We conducted an integrated study of these two basins and the Eastern Kunlun Range that separates them to understand the timing and mechanisms of their development in order to decipher the growth and uplift history of the plateau. Crustal shortening in the Fenghuoshan-Nangqian and Qilian Shan-Nan Shan thrust belts initiated no later than the early Eocene, which formed the northern and southern boundaries of the combined Hoh Xil and Qaidam basins in central Tibet. The distinct two-stage development of the Hoh Xil basin suggests emergence of a topographic barrier between the Hoh Xil basin in the south and Qaidam basin in the north in the early Neogene, which is supported by the existing and new apatite fission-track data from the Eastern Kunlun Range that suggest rapid cooling after ca. 20 Ma. Previous and newly collected geochronological, petrological, and thermochronological data are best interpreted in the context of the Paleogene Paleo-Qaidam hypothesis, which requires Hoh Xil and Qaidam basins to have been parts of a single integrated basin during the early stage of the Cenozoic Tibetan plateau development.


ISSN: 1941-8264
EISSN: 1947-4253
Serial Title: Lithosphere
Serial Volume: Pre-Issue Publication
Title: Mesozoic-Cenozoic evolution of the eastern Kunlun Range, central Tibet, and implications for basin evolution during the Indo-Asian collision
Affiliation: China University of Geosciences at Beijing, Structural Geology Group, Beijing, China
Published: 20190418
Text Language: English
Publisher: Geological Society of America, Boulder, CO, United States
References: 198
Accession Number: 2019-036121
Categories: GeochronologySolid-earth geophysics
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus. incl. 1 table, geol. sketch maps
N33°00'00" - N38°49'60", E87°00'00" - E101°00'00"
N35°00'00" - N37°00'00", E94°00'00" - E101°00'00"
Secondary Affiliation: Nevada Bureau of Mines and Geology, USA, United StatesAlbion College, USA, United StatesChinese Academy of Geological Sciences, CHN, ChinaChinese Academy of Sciences, Institute of Tibetan Plateau Research, CHN, ChinaTianjin Institute of Geology and Mineral Resources, CHN, China
Country of Publication: United States
Secondary Affiliation: GeoRef, Copyright 2019, American Geosciences Institute. Reference includes data from GeoScienceWorld, Alexandria, VA, United States. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States
Update Code: 201909
Close Modal
This Feature Is Available To Subscribers Only

Sign In or Create an Account

Close Modal
Close Modal