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Mineralogy, petrology and chemistry of ANT-suite rocks from the lunar highlandsAnorthositic-noritic-troctolitic (ANT) rocks are the oldest and most abundant rocks of the lunar surface, and comprise about 90% of the suite of the lunar highlands. Consideration is given to the mineralogy, petrology, bulk chemistry, and origin of ANT-suite rocks. Problems associated in classifying and labeling lunar highland rocks because of textural complexities occurring from impact modifications are discussed. The mineralogy of ANT-suite rocks, dominated by plagioclase, olivine and pyrozene, and containing various minor minerals, is outlined. The petrology of ANT-suite rocks is reviewed along with the major element bulk composition of these rocks, noting that they are extremely depleted in K2O and P2O5. Various models describing the origin of ANT-suite rocks are summarized, and it is suggested that this origin involves a parental liquid of high-alumina basalt with low Fe/Fe+Mg.
Document ID
19780042902
Document Type
Reprint (Version printed in journal)
Authors
Prinz, M.
(American Museum of Natural History New York, N.Y., United States)
Keil, K.
(New Mexico, University Albuquerque, N. Mex., United States)
Date Acquired
August 9, 2013
Publication Date
January 1, 1977
Publication Information
Publication: Physics and Chemistry of the Earth
Volume: 10
Issue: 4, 19
Subject Category
Lunar And Planetary Exploration
Funding Number(s)
CONTRACT_GRANT: NSG-7258
CONTRACT_GRANT: NGL-32-004-063
Distribution Limits
Public
Copyright
Other
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