Northward migration of the eastern Himalayan syntaxis revealed by OSL thermochronometry

Georgina E. King*, Frédéric Herman, Benny Guralnik

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

45 Citations (Scopus)

Abstract

Erosion influences the dynamical evolution of mountains. However, evidence for the impact of surface processes on tectonics mostly relies on the circumstantial coincidence of rugged topography, high stream power, erosion, and rock uplift. Using the optically stimulated luminescence (OSL) thermochronometry technique, we quantified the spatial and temporal exhumation of the eastern Himalayan syntaxis. We found increasing exhumation rates within the past million years at the northeast end of the Namche Barwa-Gyala Peri dome. These observations imply headward propagation of erosion in the Parlung River, suggesting that the locus of high exhumation has migrated northward. Although surface processes influence exhumation rates, they do not necessarily engage in a feedback that sets the location of tectonic deformation.

Original languageEnglish
Pages (from-to)800-804
Number of pages5
JournalScience
Volume353
Issue number6301
DOIs
Publication statusPublished - 2016

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