NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
The geochemical coherence of Pu and Nd and the Pu-244/U-238 ratio of the early solar systemTwo very different sets of Pu-244/U-238 ratios have been reported for early solar system materials, one high and the other low, and this paper examines how one of these groups may yield an incorrect ratio. Recently measured partition coefficients for Pu and Sm (Jones, 1981) are used to evaluate Pu-Nd fractionation during achondrite genesis, and Pu-244/U-238 ratios of chondrites, achondrites, and Ca-Al-rich inclusions are compared and discussed. A low Pu-244/U-238 ratio is favored, and some implications of this low ratio for galactic nucleosynthesis and meteorite age dating are briefly discussed.
Document ID
19830031625
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Jones, J. H.
(California Institute of Technology Pasadena, CA, United States)
Date Acquired
August 11, 2013
Publication Date
October 1, 1982
Publication Information
Publication: Geochimica et Cosmochimica Acta
Volume: 46
Subject Category
Lunar And Planetary Exploration
Accession Number
83A12843
Funding Number(s)
CONTRACT_GRANT: NSG-7202
CONTRACT_GRANT: NSF EAR-76-84402
Distribution Limits
Public
Copyright
Other

Available Downloads

There are no available downloads for this record.
No Preview Available