Computer Science
Scientific paper
Jun 1989
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989gecoa..53.1449w&link_type=abstract
Geochimica et Cosmochimica Acta (ISSN 0016-7037), vol. 53, June 1989, p. 1449-1459. Research supported by SNSF, BMFT, and CNRS.
Computer Science
22
Chondrites, Cosmochemistry, Inclusions, Meteoritic Composition, Regolith, Cosmic Rays, Oxygen Isotopes, Rare Gases, Trace Elements, Meteorites, Fayetteville, Inclusions, Exposure Age, H4 Chondrites, Gases, Samples, Meteorite, Laboratory Studies, Rare Gases, Cosmic Rays, Tracks, Irradiation, Parent Bodies, Procedure, Diagrams, Classification, Isotopes, Neutron Activation Analysis, Cosmogenic Elements, Rare Earth Elements, Xenoliths, Regoliths
Scientific paper
Noble gases and cosmic-ray tracks were determined on light, solar-gas-free inclusions of the solar-gas-rich H4 chondrite Fayetteville. Be-10, Al-26, major and trace element concentrations as well as oxygen isotope ratios complete the data set. One exceptional inclusion is an L-chondrite xenolith, identified by its oxygen isotope signature and the concentration of metallic Fe-Ni. Oxidized Fe of this inclusion equilibrated with the host early in the history of Fayetteville's parent body. Track density variations indicate that the majority of Fayetteville's inclusions were irradiated as pebbles in the parent body by solar flare particles for about 10 to the 6th - 10 to the 6th years. The L-chondritic inclusion contains an unequivocal excess of GCR produced He and Ne relative to the remaining inclusions. This clast, as well as two more solar-gas-free samples suffered a GCR exposure on the parent body lasting some 10 million years or longer. This exposure is comparable in length to the residence times of solar-gas-rich matrix samples in the GCR active zone of the Fayetteville parent regolith.
Clayton Robert N.
Fiéni Christine
Graf Th.
Laul J. C.
Pedroni Anselmo
No associations
LandOfFree
Exposure history of the regolithic chondrite Fayetteville. II - Solar-gas-free light inclusions 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 regolithic chondrite Fayetteville. II - Solar-gas-free light inclusions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Exposure history of the regolithic chondrite Fayetteville. II - Solar-gas-free light inclusions will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1854265