Upper mantle P velocity structure of the Canadian shield

Details Upper mantle P velocity structure of the Canadian shield Upper mantle P velocity structure of the Canadian shield

Dec 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989jgr....9417749l&link_type=abstract

Journal of Geophysical Research (ISSN 0148-0227), vol. 94, Dec. 10, 1989, p. 17749-17765.

Other

65

Canadian Shield, Earth Mantle, Planetary Structure, Mathematical Models, Planetary Mapping, Velocity Distribution, Wave Propagation

Scientific paper

The P wave upper mantle structure of the Canadian shield is determined here by forward waveform modeling of the phases P(nl), P, and PP. Important features in the model are (1) a thick, high-Q, high-velocity lid to 165 km, (2) a deep, low-velocity zone, and (3) discontinuities of 5 percent at 405 km and 4 percent at 660 km. The lid and low-velocity zone create an unusual B branch arrival, not seen in other regions, which persists well beyond 30 deg. Only slight lateral variation is noted within the shield region. The major feature of the model are similar to those of Grand and Helmberger's (1984) S wave model for the Canadian shield.

Affiliated with

Also associated with

No associations

Rating

Upper mantle P velocity structure of the Canadian shield 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 Upper mantle P velocity structure of the Canadian shield, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Upper mantle P velocity structure of the Canadian shield will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1572714