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Lateral variations in lower crustal strength control the temporal evolution of mountain ranges: examples from south-east Tibet

Lateral variations in lower crustal strength control the temporal evolution of mountain ranges: examples from south-east Tibet

This is a Preprint and has not been peer reviewed. The published version of this Preprint is available: http://doi.org/10.1029/2020GC009092. This is version 7 of this Preprint.

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Authors

Camilla Emily Penney, Alex Copley

Abstract

Controversy surrounds the rheology of the continental lithosphere, and how it controls the evolution and behaviour of mountain ranges. In this study, we investigate the effect of lateral contrasts in the strength of the lower crust, such as those between cratonic continental interiors and weaker rocks in the adjacent deforming regions, on the evolution of topography. We combine numerical modelling with recently published results from stable-isotope palaeoaltimetry in south-east Tibet. Stable-isotope palaeoaltimetry in this region provides constraints on vertical motions, which are required to distinguish between competing models for lithosphe...  more

DOI

https://doi.org/10.31223/osf.io/zxq4t

Subjects

Earth Sciences, Geochemistry, Geomorphology, Geophysics and Seismology, Physical Sciences and Mathematics, Tectonics and Structure

Keywords

rheology, continental dynamics, mountain building, paleoaltimetry, Tibet

Dates

Published: 2020-04-17 12:23

Last Updated: 2021-02-27 21:47

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License

CC BY Attribution 4.0 International