Computer Science
Scientific paper
Sep 1978
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978phdt.........3g&link_type=abstract
Ph.D. Thesis Massachusetts Inst. of Tech., Cambridge. Dept. of Earth and Planetary Sciences.
Computer Science
6
Lunar Core, Lunar Seismographs, Comparison, Earth (Planet), Lunar Geology, Seismology
Scientific paper
The direct P and S wave arrival times are the primary data set that can be measured on the seismograms of natural lunar seismic events. Polarization filtering techniques allow the enhancement of secondary body wave arrivals and record curves to identify the secondary phases and deduce structural information. Finally, shear wave amplitude vs. distance curves yield information on the location and magnitude of seismic velocity gradients in the interior. The results of these analyses show that the moon appears to have a two-layer crust at all four seismic stations: a 20 km upper crust that seems to be constant at all sites and a lower crust that is 40 km thick at stations 12 and 14 (mare), 55 + or - 10 km at station 16 (highland), and tentatively either 40 km or 70 km at station 15. The lower mantle extends from 480 km to at least 1100 km depth which is the maximum depth of penetration of all but a few seismic waves used as data. No definitive evidence for or against a lunar core exists.
No associations
LandOfFree
Lunar seismology: The internal structure of the moon 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 Lunar seismology: The internal structure of the moon, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Lunar seismology: The internal structure of the moon will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-943088