Published in

American Geophysical Union, Geophysical Research Letters, 24(33), 2006

DOI: 10.1029/2006gl028433

Links

Tools

Export citation

Search in Google Scholar

Continental deformation in Asia from a combined GPS solution

Journal article published in 2006 by E. Calais ORCID, L. Dong, M. Wang, Z. K. Shen, Mathilde Vergnolle
This paper is made freely available by the publisher.
This paper is made freely available by the publisher.

Full text: Download

Green circle
Preprint: archiving allowed
Green circle
Postprint: archiving allowed
Orange circle
Published version: archiving restricted
Data provided by SHERPA/RoMEO

Abstract

After decades of research on continental tectonics, there is still no consensus on the mode of deformation of continents or on the forces that drive their deformation. In Asia the debate opposes edge-driven block models, requiring a strong lithosphere with strain localized on faults, to buoyancy-driven continuous models, requiring a viscous lithosphere with pervasive strain. Discriminating between these models requires continent-wide estimates of lithospheric strain rates. Previous efforts have relied on the resampling of heterogeneous geodetic and Quaternary faulting data sets using interpolation techniques. We present a new velocity field based on the rigorous combination of geodetic solutions with relatively homogeneous station spacing, avoiding technique-dependend biases inherent to interpolation methods. We find (1) unresolvable strain rates (< 3×10923 /yr) over a large part of Asia, with current motions well-described by block or microplate rotations, and (2) internal strain, possibly continuous, limited to high-elevation areas.