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Heterogeneity in titaniferous lunar basaltsSmall but real chemical differences exist between subsamples of fine-grained quench-textured titaniferous lunar basalts. The existence of different textural domains with different chemistries is thought to account for most of this variation. In addition to the textural domains, lunar sample 74275 has a population of olivine 'megacrysts' as well as dunite fragments. These materials are thought to be extraneous and to compromise the primary nature of 74275. Recognition of the small chemical variations present may aid in understanding some discrepancies in the experimental-petrology literature. However, these small variations have a distressing petrogenetic significance since they severely limit resolution in recognizing the number and depth of origin of primary magmas.
Document ID
19760045244
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Walker, D.
(Harvard Univ. Cambridge, MA, United States)
Longhi, J.
(Harvard Univ. Cambridge, MA, United States)
Hays, J. F.
(Harvard University Cambridge, Mass., United States)
Date Acquired
August 8, 2013
Publication Date
April 1, 1976
Publication Information
Publication: Earth and Planetary Science Letters
Volume: 30
Issue: 1, Ap
Subject Category
Lunar And Planetary Exploration
Accession Number
76A28210
Funding Number(s)
CONTRACT_GRANT: NGL-22-007-247
Distribution Limits
Public
Copyright
Other

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