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Seismic evidence for a tilted mantle plume and north-south mantle flow beneath Iceland

Earth and Planetary Science Letters

By:
, , , , , , , , , ,
DOI: 10.1016/S0012-821X(02)00494-6

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Abstract

Shear waves converted from compressional waves at mantle discontinuities near 410- and 660-km depth recorded by two broadband seismic experiments in Iceland reveal that the center of an area of anomalously thin mantle transition zone lies at least 100 km south of the upper-mantle low-velocity anomaly imaged tomographically beneath the hotspot. This offset is evidence for a tilted plume conduit in the upper mantle, the result of either northward flow of the Icelandic asthenosphere or southward flow of the upper part of the lower mantle in a no-net-rotation reference frame. ?? 2002 Elsevier Science B.V. All rights reserved.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Seismic evidence for a tilted mantle plume and north-south mantle flow beneath Iceland
Series title:
Earth and Planetary Science Letters
DOI:
10.1016/S0012-821X(02)00494-6
Volume
197
Issue:
3-4
Year Published:
2002
Language:
English
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
Earth and Planetary Science Letters
First page:
261
Last page:
272
Number of Pages:
12