Shock wave properties of anorthosite and gabbro

Details Shock wave properties of anorthosite and gabbro Shock wave properties of anorthosite and gabbro

Aug 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985jgr....90.7814b&link_type=abstract

Journal of Geophysical Research (ISSN 0148-0227), vol. 90, Aug. 10, 1985, p. 7814-7820. Previously announced in STAR as N84-1752

Computer Science

Sound

6

Gabbro, Igneous Rocks, Petrography, Propagation, Rock Mechanics, Seismology, Shock Waves, Stress Analysis, Amorphous Materials, Feldspars, Hypervelocity Impact, Kinetic Energy, Phase Transformations, Shear Strength, Velocity Distribution

Scientific paper

Huyoniot data on San Gabriel anorthosite and San Marcos gabbro to 11 GPA are presented. Release paths in the stress-density plane and sound velocities are reported as determined from partial velocity data. Electrical interference effects precluded the determination of accurate release paths for the gabbro. Because of the loss of shear strength in the shocked state, the plastic behavior exhibited by anorthosite indicates that calculations of energy partitioning due to impact onto planetary surfaces based on elastic-plastic models may underestimate the amount of internal energy deposited in the impacted surface material.

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