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Chemistry, mineralogy and petrology of seven greater than 1 mm fragments from Mare CrisiumResults are summarized for a consortium study of the chemistry, mineralogy, and petrology of seven Luna 24 fragments greater than 1 mm in size and having a mass of about 2 mg each. The fragments include four samples of mare ferrobasalt composition, one vitrophyre with the composition of a Mg-rich VLT mare basalt, one agglutinate, and one plagioclase fragment. It is found that: (1) the ferrobasalt is a highly fractionated mare rock very low in alkalis and TiO2, is similar to the less fractionate Apollo 17 VLT basalts, and is quite low in large-ion lithophile trace-element content; (2) the rare-earth-element patterns of the ferrobasalts are typical of VLT basalt, but some ophitic basalts have positive Eu anomalies, while others have negative Eu anomalies typical of mare basalts; and (3) the agglutinate is feldspathic and similar in composition to soil fines in Fe, Cr, Ca, and Al.
Document ID
19790048525
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Laul, J. C.
(Battelle Pacific Northwest Laboratories Richland, Wash., United States)
Vaniman, D. T.
(Battelle Pacific Northwest Labs. Richland, WA, United States)
Papike, J. J.
(New York, State University Stony Brook, N.Y., United States)
Date Acquired
August 9, 2013
Publication Date
January 1, 1978
Subject Category
Lunar And Planetary Exploration
Meeting Information
Meeting: Mare Crisium: The view from Luna 24; Conference
Location: Houston, TX
Start Date: December 1, 1977
End Date: December 3, 1977
Sponsors: NSF
Accession Number
79A32538
Funding Number(s)
CONTRACT_GRANT: NSG-9044
CONTRACT_GRANT: NAS9-15357
Distribution Limits
Public
Copyright
Other

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