Articles | Volume 9, issue 6
Research article
 | Highlight paper
05 Nov 2018
Research article | Highlight paper |  | 05 Nov 2018

The influence of upper-plate advance and erosion on overriding plate deformation in orogen syntaxes

Matthias Nettesheim, Todd A. Ehlers, David M. Whipp, and Alexander Koptev

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Cited articles

Adams, B. A. and Ehlers, T. A.: Deciphering topographic signals of glaciation and rock uplift in an active orogen: a case study from the Olympic Mountains, USA, Earth Surf. Proc. Land., 42, 1680–1692,, 2017.
Adams, B. A. and Ehlers, T. A.: Tectonic controls of Holocene erosion in a glaciated orogen, Earth Surf. Dynam. Discuss.,, in review, 2018.
Bathe, K.-J.: Finite element procedures in engineering analysis, Prentice-Hall, New Jersey, 1982.
Batt, G. E., Brandon, M. T., Farley, K. A., and Roden-Tice, M.: Tectonic synthesis of the Olympic Mountains segment of the Cascadia wedge, using two-dimensional thermal and kinematic modeling of thermochronological ages, J. Geophys. Res.-Solid, 106, 26731–26746,, 2001.
Bendick, R. and Ehlers, T. A.: Extreme localized exhumation at syntaxes initiated by subduction geometry, Geophys. Res. Lett., 41, 5861–5867,, 2014.
Short summary
In this modeling study, we investigate rock uplift at plate corners (syntaxes). These are characterized by a unique bent geometry at subduction zones and exhibit some of the world's highest rock uplift rates. We find that the style of deformation changes above the plate's bent section and that active subduction is necessary to generate an isolated region of rapid uplift. Strong erosion there localizes uplift on even smaller scales, suggesting both tectonic and surface processes are important.