The nuclear track record of core samples from the H5 chondrite Jilin

Details The nuclear track record of core samples from the H5 chondrite Jilin The nuclear track record of core samples from the H5 chondrite Jilin

Aug 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996m%26ps...31..681t&link_type=abstract

Meteoritics, vol. 31, pages 681-687.

Physics

2

Scientific paper

Based on 43 documented drill core samples of the H5 chondrite Jilin the depth profile of track densities was investigated. The study of olivine and pyroxene crystals extracted from the two drill cores A and B of the main fragment no. 1 yields a track background for the Jilin interior of 150+/-90 cm-2. To estimate the contribution of different track origins, the uranium microdistribution of sample sections and single grain sections was mapped by neutron-induced 235U-fission using high-purity quartz glass detectors. The average uranium content of 0.59+/-0.22 ppb for pyroxenes and 0.12+/-0.06 ppb for olivines is consistent with the observed fission track background in these minerals. There are no indications of spontaneous fission of 244Pu, secondary mobilisation of uranium in the bulk sample, or substantial track annealing. As deduced from the calculated fission track density, the track contribution from galactic cosmic rays is negligible in the core samples investigated.

Affiliated with

Also associated with

No associations

Rating

The nuclear track record of core samples from the H5 chondrite Jilin 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 The nuclear track record of core samples from the H5 chondrite Jilin, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The nuclear track record of core samples from the H5 chondrite Jilin will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-773770