NDLI: A tem investigation of the fine-grained matrix of the martian basaltic breccia nwa 7034

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A tem investigation of the fine-grained matrix of the martian basaltic breccia nwa 7034

Content Provider	NASA Technical Reports Server (NTRS)
Author	Muttik, N. McCubbin, F. M. Agee, C. B. Santos, A. R. Keller, L. P. Rahman, Z.
Copyright Year	2014
Description	The martian basaltic breccia NWA 7034 is characterized by fine-grained groundmass containing several different types of mineral grains and lithologic clasts. The matrix composition closely resembles Martian crustal rock and soil composition measured by recent rover and orbiter missions. The first results of NWA 7034 suggest that the brecciation of this martian meteorite may have formed due to eruptive volcanic processes; however, impact related brecciation processes have been proposed for paired meteorites NWA 7533 and NWA 7475]. Due to the very fine grain size of matrix, its textural details are difficult to resolve by optical and microprobe observations. In order to examine the potential nature of brecciation, transmission electron microscopy (TEM) studies combined with focused ion-beam technique (FIB) has been undertaken. Here we present the preliminary observations of fine-grained groundmass of NWA 7034 from different matrix areas by describing its textural and mineralogical variations and micro-structural characteristics.
File Size	305844
Page Count	2
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_20140012903
Archival Resource Key	ark:/13960/t0zp91m08
Language	English
Publisher Date	2014-03-17
Access Restriction	Open
Subject Keyword	Lunar And Planetary Science And Exploration Grain Size Mineralogy Meteoritic Composition Mars Planet Breccia Ion Beams Textures Petrology Transmission Electron Microscopy Lithology Basalt Mars Surface Snc Meteorites Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Article

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