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Rare earth element selenochemistry of immiscible liquids and zircon at Apollo 14 - An ion probe study of evolved rocks on the moonResults are presented of trace-element analyses of three lunar zircons. The major-element and REE compositions were determined using electron microprobes, and a correction was made for zircon for Zr-Si-O molecular interferences in the La to Pr mass region. The three zircons were found to exhibit similar REE abundances and patterns. Results of the analyses confirm earlier studies (Hess et al., 1975; Watson, 1976; Neal and Taylor, 1989) on the partitioning behavior of trace elements in immiscible liquid-liquid pairs. The results also support the postulated importance of silicate liquid immiscibility in the differentiation of the upper mantle and crust of the moon.
Document ID
19930046877
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Snyder, Gregory A.
(NASA Lyndon B. Johnson Space Center Houston, TX, United States)
Taylor, Lawrence A.
(Tennessee Univ. Knoxville, United States)
Crozaz, Ghislaine
(Washington Univ. Saint Louis, MO, United States)
Date Acquired
August 16, 2013
Publication Date
March 1, 1993
Publication Information
Publication: Geochimica et Cosmochimica Acta
Volume: 57
Issue: 5
ISSN: 0016-7037
Subject Category
Lunar And Planetary Exploration
Accession Number
93A30874
Funding Number(s)
CONTRACT_GRANT: NAG9-55
CONTRACT_GRANT: NAG9-415
Distribution Limits
Public
Copyright
Other

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