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Chemical variability and origin of agglutinitic glassOver 600 energy dispersive X-ray analyses of pure glass in 32 large agglutinates from five different Apollo landing sites were performed, and the results are reported and discussed. Some agglutinates are found to contain remarkably homogeneous glass; these agglutinates tend to be optically homogeneous as well. Many of the more complex agglutinates contain glass domains that are relatively homogeneous but differ in composition from other domains in the same agglutinates. The variation in composition of different domains within a single agglutinate can exceed variation among average compositions of different agglutinates in a soil. The composition of individual glass domains is not generally on the line between the composition of a bulk soil and the composition of the finest size fractions of that soil. The average composition of all agglutinate domains in a soil lies close to that line and close to the composition of the finest fraction, in support of the F3 and similar models.
Document ID
19860035320
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Basu, A.
(Indiana University Bloomington, United States)
Mckay, D. S.
(NASA Johnson Space Center Houston, TX, United States)
Date Acquired
August 12, 2013
Publication Date
November 15, 1985
Publication Information
Publication: Journal of Geophysical Research, Supplement
Volume: 90
ISSN: 0148-0227
Subject Category
Lunar And Planetary Exploration
Accession Number
86A20058
Funding Number(s)
CONTRACT_GRANT: NASW-3389
CONTRACT_GRANT: NSG-9077
Distribution Limits
Public
Copyright
Other

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