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Detailed Reference Information |
Olsen, K.H., Braile, L.W. and Johnson, P.A. (1980). Seismic velocity and Q-structure of the upper mantle lid and low velocity zone for the Eastern Great Basin. Geophysical Research Letters 7: doi: 10.1029/GL007i012p01029. issn: 0094-8276. |
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A 100-km-long record section of NTS explosions recorded in the eastern Snake River Plains (7 ¿<Δ<8 ¿) shows the cusp of critical refractions from the steepened P velocity gradient at the bottom of the upper mantle LVZ. Synthetic seismograms calculated with a modified reflectivity program have been used to derive a regional velocity model of the upper mantle beneath the eastern Great Basin. The model suggests that observed very weak Pn arrivals are due to a slight negative velocity gradient below the Moho and that no high velocity mantle lid exists in this region. |
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Publisher
American Geophysical Union 2000 Florida Avenue N.W. Washington, D.C. 20009-1277 USA 1-202-462-6900 1-202-328-0566 service@agu.org |
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