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Peyton et al. 2001

Peyton, V., Levin, V., Park, J., Brandon, M., Lees, J., Gordeev, E. and Ozerov, A. (2001). Mantle flow at a slab edge: Seismic anisotropy in the Kamchatka Region. Geophysical Research Letters 28: doi: 10.1029/2000GL012200. issn: 0094-8276.

The junction of the Aleutian Island and the Kamchatka peninsula defines a sharp turn in the boundary of the Pacific and North American plates, terminating the subduction zones of the northwest Pacific. The regional pattern of shear-wave birefringence near the junction indicates that trench-parallel strain follows the seismogenic Benioff zone, but rotates to trench-normal beyond the slab edge. Asthenospheric mantle is inferred to flow around and beneath the disrupted slab edge, and may influence the shallowing dip of the Benioff zone at the Aleutian junction. ¿ 2001 American Geophysical Union

BACKGROUND DATA FILES

	Abstract

Keywords
Seismology, Body wave propagation, Seismology, Lithosphere and upper mantle, Tectonophysics, Dynamics of lithosphere and mantle—general, Marine Geology and Geophysics, Plate tectonics (8150, 8155, 8157, 8158)

Journal
Geophysical Research Letters
http://www.agu.org/journals/gl/

Publisher
American Geophysical Union
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