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SeismicQof the lunar upper mantle
- Source :
- Journal of Geophysical Research: Solid Earth. 87:4855-4861
- Publication Year :
- 1982
- Publisher :
- American Geophysical Union (AGU), 1982.
-
Abstract
- Shallow moonquake data are used to determine the frequency dependence of Q values for both compressional and shear waves in the upper mantle of the moon at frequencies between 3 and 8 Hz. The seismic P wave Q is estimated to be at least 4000 and is nearly independent of frequency or decreases slightly with increasing frequency, while the S wave Q increases from at least 4000 at 3 Hz to at least 7000 at 8 Hz. The rate of increase of Q(S) is approximately proportional to the 0.7 + or - 0.1 power of the frequency above 5 Hz. With the absence of other dissipation mechanisms, compressional heat loss may be a dominant factor in the lunar interior. Uncertainty remains, however, in the absolute values of Q's owing to the largely unknown detailed structure of the lunar upper mantle.
- Subjects :
- Atmospheric Science
Shear waves
Ecology
P wave
Paleontology
Soil Science
Forestry
Geophysics
Dispersive body waves
Aquatic Science
Oceanography
Seismic wave
Mantle (geology)
Space and Planetary Science
Geochemistry and Petrology
S-wave
Earth and Planetary Sciences (miscellaneous)
Seismogram
Seismology
Longitudinal wave
Geology
Earth-Surface Processes
Water Science and Technology
Subjects
Details
- ISSN :
- 01480227
- Volume :
- 87
- Database :
- OpenAIRE
- Journal :
- Journal of Geophysical Research: Solid Earth
- Accession number :
- edsair.doi...........1fc052b12a9f1f8a08b756b57d954d15
- Full Text :
- https://doi.org/10.1029/jb087ib06p04855