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Mantle Flow at a Slab Edge: Seismic Anisotropy in the Kamchatka Region

Peyton V., Levin V., Park J., Brandon M., Lees J., Gordeev E., Ozerov A. (2001) Mantle Flow at a Slab Edge: Seismic Anisotropy in the Kamchatka Region // Geophysical Research Letters. Vol. 28, No. 2. pp. 379-382. doi: 10.1029/2000GL012200.

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Abstract

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.
Item Type: Article
Title: Mantle Flow at a Slab Edge: Seismic Anisotropy in the Kamchatka Region
Language: English
Journal or Publication Title: Geophysical Research Letters
ISSN Print: 0094-8276
ISSN Online: 1944-8007
Subjects: State scientific and technical information rubricator (ГРНТИ) > 37 ГЕОФИЗИКА > 37.31 Физика Земли > 37.31.19 Сейсмология
Depositing User: А.Ю. Озеров
Date Deposited: 25 Jan 2019 05:07
Last Modified: 25 Jan 2019 05:07
URI: http://repo.kscnet.ru/id/eprint/3460

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