Shock experiments on maskelynite-bearing anorthosite

Details Shock experiments on maskelynite-bearing anorthosite Shock experiments on maskelynite-bearing anorthosite

Apr 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984e%26psl..68..159l&link_type=abstract

Earth and Planetary Science Letters (ISSN 0012-821X), vol. 68, no. 1, April 1984, p. 159-171.

Computer Science

6

Anorthosite, Photomicrographs, Refractivity, Shock Tests, Canada, Labrador, Petrography, Textures

Scientific paper

A series of shock recovery experiments over 9.9-60.4 GPa have been carried out on naturally shocked anorthosite from the Mistastin impact structure in Labrador consisting primarily of diaplectic plagioclase glass or maskelynite, An(50), and pyroxene. Petrographic observations of the experimental products indicate that the component minerals and diaplectic glasses generally retained their initial character throughout, the only exception being the increase in fracturing which occurred in the 9.9 GPa shot. Reshocking at pressures higher than the initial shock tends to lower the refractive index of maskelynite. The increase in refractive index of maskelynite reshocked to pressures lower than the initial pressure is interpreted as due to shock densification of the diaplectic glass above the Hugoniot elastic limit and below the mixed phase regime. The data suggest that the low-high-low density transition of maskelynite occurs about 8 GPa below that of the crystal of corresponding composition.

Affiliated with

Also associated with

No associations

Rating

Shock experiments on maskelynite-bearing anorthosite 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 Shock experiments on maskelynite-bearing anorthosite, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Shock experiments on maskelynite-bearing anorthosite will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1499280