A map of topography on the 410-km discontinuity from PP precursors

Details A map of topography on the 410-km discontinuity from PP precursors A map of topography on the 410-km discontinuity from PP precursors

Mar 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999georl..26..549f&link_type=abstract

Geophysical Research Letters, Volume 26, Issue 5, p. 549-552

Physics

32

Seismology: Body Wave Propagation, Seismology: Core And Mantle

Scientific paper

We derive a new map of global topography on the 410-km discontinuity from observations of precursors to PP obtained by stacking almost 25,000 long-period seismograms. The inferred `410' topography exhibits average peak-to-peak amplitude of about 30 km, has a strong degree-one component, and is highly correlated with previous results obtained from SS precursors [Flanagan and Shearer, 1998]. Spatial variations in `410' topography appear unrelated to ocean-continent differences, suggesting that continental roots are not a significant factor in observed global temperature variations at 410 km depth.

Affiliated with

Also associated with

No associations

Rating

A map of topography on the 410-km discontinuity from PP precursors 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 A map of topography on the 410-km discontinuity from PP precursors, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A map of topography on the 410-km discontinuity from PP precursors will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1448678