The Pacific plume as seen by S, ScS, and SKS

Details The Pacific plume as seen by S, ScS, and SKS The Pacific plume as seen by S, ScS, and SKS

May 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001georl..28.1859b&link_type=abstract

Geophysical Research Letters, Volume 28, Issue 9, p. 1859-1862

Physics

7

Seismology, Seismology: Body Wave Propagation, Seismology: Core And Mantle

Scientific paper

The forward modeling of S-SKS and ScS-S differential travel time residuals sensitive to structure beneath a localized region of the central Pacific suggests the presence of two anomalous domains: first a broad zone which becomes thinner as it extends into the mid-mantle, where the S-velocity is reduced by -2 to -4%, and which is deflected to the South-East as it ``rises'' towards the surface; adjacent to it, a smaller domain, where the S-velocity is about 4% higher. These strong velocity anomalies are likely the results of chemical heterogeneity that may involve subducted material, and partial melting. Strong heterogeneity appears to extend, at least locally, well above D'', but the morphology of the anomalous domains is more reminiscent of localized rising or sinking currents rather than of a relatively uniform and thick geochemical reservoir.

Affiliated with

Also associated with

No associations

Rating

The Pacific plume as seen by S, ScS, and SKS does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with The Pacific plume as seen by S, ScS, and SKS, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The Pacific plume as seen by S, ScS, and SKS will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-934477