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    Uplift of the West Kunlun Range, northern Tibetan Plateau, dominated by brittle thickening of the upper crust

    Access Status
    Fulltext not available
    Authors
    Jiang, X.
    Li, Zheng-Xiang
    Li, Haibing
    Date
    2013
    Type
    Journal Article
    
    Metadata
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    Citation
    Jiang, Xiaodian and Li, Zheng-Xiang and Li, Haibing. 2013. Uplift of the West Kunlun Range, northern Tibetan Plateau, dominated by brittle thickening of the upper crust. Geology. 41 (4): pp. 439-442.
    Source Title
    Geology
    DOI
    10.1130/G33890.1
    ISSN
    0091-7613
    URI
    http://hdl.handle.net/20.500.11937/27715
    Collection
    • Curtin Research Publications
    Abstract

    High-resolution seismic reflection data from the West Kunlun Range front show that crustal structures beneath the northwestern margin of the Tibetan Plateau are dominated by nappes of upper crustal rocks. Geological cross-section balancing suggests an average of 24.6–54 km (38%–52%) of upper crustal shortening. This horizontal shortening by brittle folding and faulting in the upper crust correlates positively with crustal thickening, an increase in Moho depth by 5–7 km, and the topography. Our work suggests that upper crustal shortening is a chief factor for topographic uplift and crustal thickening at the northwestern margin of the Tibetan Plateau. Such a mechanism is different from that proposed for the plateau south of the Karakax strike-slip fault, where crustal flow may have played a prominent role in plateau uplift.

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