Computer Science
Scientific paper
Nov 2000
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000m%26ps...35.1215f&link_type=abstract
Meteoritics & Planetary Science, vol. 35, no. 6, pp. 1215-1227 (2000).
Computer Science
6
Scientific paper
We measured cosmogenic radionuclides (10Be, 26Al, 36Cl) and noble gases (He, Ne and Ar) in 10 specimens of the L6 chondrite Mocs to determine the exposure history and pre-atmospheric relationship among fragments from known locations in the strewn field. Cosmogenic noble gas contents alone are consistent with a simple irradiation exposure of 15.2 Ma. However, Mocs has very low 22Ne/21Ne ratios indicative of deep burial in a large meteoroid, but radionuclide levels at saturation values typical for much smaller meteoroids: this paradox suggests a possible complex exposure. For the latter case, we propose a two-stage exposure history in which Mocs initially was buried deeply in a large object for 110 Ma followed by exposure in a 65 cm object for 10.5 Ma. Relative shielding was inferred from the measured 22Ne/21Ne ratios assuming constant 22Ne/21Ne production for all samples during the first stage. These shielding levels, which are supported by estimates based on 36Cl production by neutron capture, indicate a possible relationship between depth of samples in the Mocs meteoroid and fall location in the strewn field.
Bogard Donald D.
Ferko Thomas Eugene
Franke Luitgard
Garrison Daniel H.
Hutchison Robert
No associations
LandOfFree
Exposure history of the Mocs (L6) chondrite: A study of strewn field samples 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 Exposure history of the Mocs (L6) chondrite: A study of strewn field samples, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Exposure history of the Mocs (L6) chondrite: A study of strewn field samples will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1613949