Physics
Scientific paper
Jan 1982
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982jgr....87..117n&link_type=abstract
Journal of Geophysical Research, Vol. 87, Suppl., p. A117 - A123
Physics
38
Moon:Seismicity
Scientific paper
Processing and initial analysis of the entire set of Apollo lunar seismic data collected continuously from 1969 through 1977 have now been completed. Recent results include: (1) better defined deep moonquake locations, which appear to be bounded rather sharply between about 800 km and 1000 km depths with concentrations near both boundaries; and (2) middle mantle (≡500 to 1000 km depth) seismic velocities of Vp = 8.3±0.4 km/sec and Vs = 4.6±0.2 km/sec, which are significantly higher than previous estimates and represent an increase of velocities from the upper mantle as opposed to a decrease in previous estimates.
Dorman H. J.
Latham Gary V.
Nakamura Yoshifumi
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