Mathematics – Logic
Scientific paper
May 1993
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993georl..20..895a&link_type=abstract
Geophysical Research Letters (ISSN 0094-8276), vol. 20, no. 10, p. 895-898.
Mathematics
Logic
206
Deformation, Earth Rotation, Geological Faults, Kinematic Equations, Asia, Velocity Distribution
Scientific paper
The velocity field of present-day deformation in Central Asia is modelled using a set of four rotating blocks (Siberia, Tarim, Tibet, India) on a spherical earth. A best-fit is inverted on the basis of estimated shortening rates across the main thrust zones (Himalayas, Tien Shan) and measured slip-rates along the principal strike-slip faults (Altyn Tagh and Karakorum) separating those blocks. The fit to the data implies that nearly all the present convergence between India and Asia can be accounted for by slip-partitioning on these four zones, with as much as 50 percent absorbed by northeastwards extrusion of Tibet. This suggests that localized deformation governs the present mechanical behavior of the Central Asian lithosphere.
Avouac Jean-Phillipe
Tapponnier Paul
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