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Super‐deep low‐velocity layer beneath the Arabian plate
Author(s) -
Vinnik L.,
Ravi Kumar M.,
Kind R.,
Farra V.
Publication year - 2003
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/2002gl016590
Subject(s) - geology , craton , mantle (geology) , plate tectonics , structural basin , boundary layer , seismology , geophysics , paleontology , tectonics , physics , thermodynamics
S and P receiver functions reveal indications of a low S velocity layer at 350–410 km depths beneath the Arabian plate. A similar layer was previously found beneath the Kaapvaal craton in southern Africa and Tunguska basin of the Siberian platform. We hypothesize, that the boundary at 350 km depth may separate dry mantle root of the Arabian plate from the underlying wet mantle layer. This boundary is not found beneath the Gulf of Aden, where the root is destroyed by sea‐floor spreading.