Computer Science
Scientific paper
Jun 1976
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976e%26psl..31...69l&link_type=abstract
Earth and Planetary Science Letters, vol. 31, no. 1, June 1976, p. 69-74.
Computer Science
8
Anorthosite, Elastic Properties, Feldspars, Lunar Crust, Lunar Rocks, Gabbro, Hot Pressing, Lunar Composition, Polycrystals, Pressure Effects, Single Crystals, Temperature Effects
Scientific paper
A polycrystalline specimen of anorthite has been hot-pressed at a pressure of 15 kbar and a temperature of 1000 C in a piston-cylinder apparatus. Compressional and shear velocities are determined as a function of pressure to 7.5 kbar at room temperature by an ultrasonic pulse-transmission technique. The specimen is less than 0.5% porous and is elastically isotropic within 1%. At 7.5 kbar, the compressional velocity is 7.29 km/sec and the shear velocity is 3.85 km/sec. These data are consistent with those for most terrestrial and lunar plagioclase rocks, but not for certain anisotropic rocks and single crystals. The measured velocities demonstrate that it is impossible to distinguish between rocks of gabbro, anorthositic gabbro, or anorthosite compositions for the 20-55-km layer of the lunar crust on the basis of seismic data alone. The mean composition of the crust could well be that of a gabbro (17% Al2O3) rather than of an anorthositic gabbro (about 25% Al2O3), as assumed in some current models.
Liebermann Robert C.
Ringwood A. E.
No associations
LandOfFree
Elastic properties of anorthite and the nature of the lunar crust 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 Elastic properties of anorthite and the nature of the lunar crust, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Elastic properties of anorthite and the nature of the lunar crust will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1783720