Computer Science
Scientific paper
Nov 1983
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983natur.306..172r&link_type=abstract
Nature (ISSN 0028-0836), vol. 306, Nov. 10, 1983, p. 172, 173. Research supported by the Natural Environment Research Council.
Computer Science
6
Chondrites, Meteoritic Composition, Phosphates, Radioactive Age Determination, Rare Earth Elements, Calcium Phosphates, Ion Probes, Plutonium 244
Scientific paper
Ion-probe measurements were made of the rare-earth elements (REE) in chondritic phosphates. A 20-micron beam of O-16(-) ions was used to bombard thin phosphate sections. A computer-controlled mass spectrometer was employed to analyze the peaks generated by the beam scan. When interferences from matrixes in the samples were encountered, the intensities of major isotopes were compared with reference intensities, and the peaks of isotopes showing the lowest interference were selected. REE concentrations of apatite and merrillite in Barbotan and Salles chondrites are reported, showing that REE is five times higher in concentration than apatite. It is concluded that the REE elements can be successfully substituted as a Pu analog for dating the chondritic phosphate materials in regards to their formation time.
Long V. P. J.
Reed J. B. S.
Smith Dorian G. W.
No associations
LandOfFree
Rare earth elements in chondritic phosphates - Implications for PU-244 chronology 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 Rare earth elements in chondritic phosphates - Implications for PU-244 chronology, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Rare earth elements in chondritic phosphates - Implications for PU-244 chronology will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1488294