Krypton and xenon from the solar wind and solar energetic particles in two lunar ilmenites of different antiquity

Details Krypton and xenon from the solar wind and solar energetic particles in two lunar ilmenites of different antiquity Krypton and xenon from the solar wind and solar energetic particles in two lunar ilmenites of different antiquity

Sep 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994metic..29..570w&link_type=abstract

Meteoritics (ISSN 0026-1114), vol. 29, no. 5, p. 570-580

Other

41

Chronology, Ilmenite, Krypton, Lunar Composition, Lunar Soil, Moon, Solar Corpuscular Radiation, Solar Wind, Xenon, Argon, Chemical Composition, Helium, Isotopes, Neon, Ratios

Scientific paper

We present Kr and Xe isotope data obtained by closed system stepped etching of ilmenite separates from two lunar samples exposed to the solar corpuscular radiation at different epochs. Helium, neon, and argon in the same samples were reported to consist of two components: isotopically unfractionated solar wind (SW) released in the first steps, and an isotopically heavier component (SEP) released later and, thus, sited at larger depth. The same release characteristic is now observed for the heavy noble gases. We also conclude that solar Kr and Xe consist of two isotopically different components, implanted with different energies. The SW-Kr in a recently irradiated soil has a composition very close to atmospheric Kr, which agrees with other newly reported data from stepped etch- and combustion runs. No clear evidence for temporally variable SW-Kr or SW-Xe spectra was found. 'Surface correlated' Kr and Xe components 'SUCOR' and 'BEOC 12001' are a mixture of SW and SEP. The isotopic fractionation factors relating SW and SEP are close to the square of the mass ratios for all five noble gases. We infer that the measured Kr/Xe ratio in ilmenite is essentially identical to this ratio in the solar corpuscular radiation.

Affiliated with

Also associated with

No associations

Rating

Krypton and xenon from the solar wind and solar energetic particles in two lunar ilmenites of different antiquity 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 Krypton and xenon from the solar wind and solar energetic particles in two lunar ilmenites of different antiquity, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Krypton and xenon from the solar wind and solar energetic particles in two lunar ilmenites of different antiquity will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1791586