Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 1980
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980gecoa..44.1945c&link_type=abstract
Geochimica et Cosmochimica Acta, vol. 44, Dec. 1980, p. 1945-1953. Research sponsored by the U.S. Department of Energy.
Astronomy and Astrophysics
Astronomy
11
Abundance, Boron, Chondrites, Meteoritic Composition, Astronomical Models, Carbonaceous Chondrites, Cosmic Rays, Nuclear Reactions, Radiation Effects
Scientific paper
Analyses of meteorites for B abundances have shown that many chondrites are contaminated with terrestrial B, producing erroneously high meteoritic abundances of this element. Boron concentrations in freshly prepared interior samples are significantly lower than they are in samples with unknown or unspecified terrestrial histories. An estimate of the cosmic abundance based upon the analyses of 8 interior samples of 2 carbonaceous chondrites and 1 interior sample of each of 8 ordinary chondrites is a factor of 6.7 less than the previous low estimate. A revised value, 3.0 B/10 to the 10th H is in agreement with estimates based on observations of the solar photosphere. It is not necessary to consider processes that enrich B in carbonaceous chondrites or deplete it in the sun. Relative meteoritic abundances of Li, Be and B are now in general agreement with models of nucleosynthesis of these light elements by galactic cosmic ray induced spallation.
Curtis Dorothy
Gladney E.
Jurney E.
No associations
LandOfFree
A revision of the meteorite based cosmic abundance of boron 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 A revision of the meteorite based cosmic abundance of boron, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A revision of the meteorite based cosmic abundance of boron will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-754582