Title of article
Seismic evidence for a tilted mantle plume and north–south mantle flow beneath Iceland
Author/Authors
Shen، نويسنده , , Yang and Solomon، نويسنده , , Sean C. and Bjarnason، نويسنده , , Ingi Th. and Nolet، نويسنده , , Guust and Morgan، نويسنده , , W.Jason and Allen، نويسنده , , Richard M. and Vogfjِrd، نويسنده , , Kristin and Jakobsdَttir، نويسنده , , Steinun and Stefلnsson، نويسنده , , Ragnar and Julian، نويسنده , , B.R. and Foulger، نويسنده , , G.R.، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2002
Pages
12
From page
261
To page
272
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.
Keywords
mantle plumes , Convection , Transition zones , Iceland , Discontinuities
Journal title
Earth and Planetary Science Letters
Serial Year
2002
Journal title
Earth and Planetary Science Letters
Record number
2322288
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