Journal article

Synchronous fluvial response to surface uplift in the eastern Tibetan Plateau: Implications for crustal dynamics

Yuntao Tian, Barry P Kohn, Shengbiao Hu, Andrew JW Gleadow

GEOPHYSICAL RESEARCH LETTERS | AMER GEOPHYSICAL UNION | Published : 2015

Abstract

Synchronous response of river erosion to surface uplift is often assumed by studies using thermochronometer-constrained erosion histories to estimate changes in landscape and tectonics. We have tested this assumption by studying river incision histories at two sites (Heishui and Lianghekou) located in the westernmost inland part of the deeply incised eastern Tibetan Plateau. Apatite fission track age-elevation plots for the two sites show clear late Miocene inflection points, marking the time when apparent erosion rates increased fourfold to eightfold to 300-800 m/Myr. This timing is further refined as ~10-12 Ma by thermal history modeling and overlaps within analytical uncertainties with th..

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Grants

Awarded by NERC


Awarded by Natural Environment Research Council


Funding Acknowledgements

Y.T. is grateful to Shifeng Wang and Zhonghua Tian for the field assistance. The thermochronology laboratory at the University of Melbourne receives infrastructure support under the AuScope program of NCRIS. We are grateful to Andy Carter for the insightful discussions on the topic and N. Harkins for commenting on an earlier version of this article. This research was funded by NERC grant (NE/K003232/1).