NDLI: Lunar meteorite queen alexandra range 93069 and the iron concentration of the lunar highlands surface

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Lunar meteorite queen alexandra range 93069 and the iron concentration of the lunar highlands surface

Content Provider	NASA Technical Reports Server (NTRS)
Author	Korotev, Randy L. Jolliff, Bradley L. Rockow, Kaylynn M.
Copyright Year	1996
Description	Lunar meteorite Queen Alexandra Range 93069 is a clast-rich, glassy-matrix regolith breccia of ferroan, highly aluminous bulk composition. It is similar in composition to other feldspathic lunar meteorites but differs in having higher concentrations of siderophile elements and incompatible trace elements. Based on electron microprobe analyses of the fusion crust, glassy matrix, and clasts, and instrumental neutron activation analysis of breccia fragments, QUE 93069 is dominated by nonmare components of ferroan, noritic- anorthosite bulk composition. Thin section QUE 93069,31 also contains a large, impact-melted, partially devitrified clast of magnesian, anorthositic-norite composition. The enrichment in Fe, Sc, and Cr and lower Mg/Fe ratio of lunar meteorites Yamato 791197 and Yamato 82192/3 compared to other feldspathic lunar meteorites can be attributed to a small proportion (5-10%) of low-Ti mare basalt. It is likely that the non- mare components of Yamato 82192/3 are similar to and occur in similar abundance to those of Yamato 86032, with which it is paired. There is a significant difference between the average FeO concentration of the lunar highlands surface as inferred from the feldspathic lunar meteorites (mean: approx. 5.0%; range: 4.3-6.1 %) and a recent estimate based on data from the Clementine mission (3.6%).
File Size	1507028
Page Count	16
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19980019921
Archival Resource Key	ark:/13960/t40s4q438
Language	English
Publisher Date	1996-01-01
Access Restriction	Open
Subject Keyword	Lunar And Planetary Exploration Enrichment Moon Neutrons Fragments Clementine Spacecraft Iron Regolith Highlands Meteorites Rocks Trace Elements Lunar Surface Electron Probes Crusts Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Technical Report

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