Cosmogenic effects in shergottites

Details Cosmogenic effects in shergottites Cosmogenic effects in shergottites

Jun 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986gecoa..50.1023b&link_type=abstract

(Lunar and Planetary Institute, NASA, American Geophysical Union, et al., Lunar and Planetary Science Conference, 16th, Houston,

Other

8

Achondrites, Cosmic Rays, Meteoritic Composition, Particle Tracks, Radiation Effects, Ablation, Aluminum 26, Evolution (Development), Heavy Nuclei, Radioactivity, Shock Loads, Solar Heating, Thermoluminescence, Meteorites, Stony Meteorites, Achondrites, Shergotty, Samples, Meteorite, Shergottites, Fission Tracks, Radioactivity, Thermal History, Cosmic Rays, Antarctic Meteorites, Alh Meteorites, Alha77005, Eet Meteorites, Eeta79001, Thermoluminescence, Shock Effects, Comparisons, Procedure, Met Meteorites, L

Scientific paper

Heavy nuclei tracks, thermoluminescence (TL), and Al-26 activity have been analyzed in samples of Shergotty, ALHA 77005, and EETA 79001 achondrites with the purpose of tracing their thermal and cosmic ray exposure history. The track data indicate low (1 to 3 cm) ablation for all three shergottites, pointing to low geocentric velocities and small masses. Nuclear track, Al-26 activity, and other cosmogenic effects in the three shergottites are consistent with their single stage exposure in space as small objects. The TL data indicate a low equivalent dose (ED) of less than 30 krad at low glow curve temperature for all the shergottites. Solar heating at close perihelion distance (0.70 to 0.85 AU) might be primarily responsible for the low ED's, although shock-induced effects cannot be ruled out. The results of this study are compared with the dynamical models developed by Wetherill (1984) for the origin of shergottites.

Affiliated with

Also associated with

No associations

Rating

Cosmogenic effects in shergottites 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 Cosmogenic effects in shergottites, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cosmogenic effects in shergottites will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1832513