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The Continuing Quest for "Regolithic" Howardites

Author
Mittlefehldt, D. W.
Published
[2012].
Physical Description
1 electronic document
Additional Creators
Quinn, J. E., Ott, U., and Cartwright, J. A.
Online Version

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Unclassified, Unlimited, Publicly available.
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Summary
The howardite, eucrite and diogenite (HED) meteorites likely originate from asteroid 4-Vesta, the first of two asteroids targeted by NASA's Dawn mission]. Howardites are polymict breccias dominantly composed of basaltic (eucrite) and orthopyroxenitic (diogenite) material. They are believed to originate from the surface of Vesta, and may represent the regolithic surface layer. Many howardites contain "regolith"-like features including fragmental breccias clasts, carbonaceous chondrite fragments and melt clasts (impact and volcanic). Though such features may relate to asteroid regolith formation processes, the exact regolithic nature of the howardite suite is not well defined.
Other Subject(s)
Collection
NASA Technical Reports Server (NTRS) Collection.
Note
Document ID: 20120001855.
JSC-CN-25699.
43rd Lunar and Planetary Science Conference; 19-23 Mar. 2012; The Woodlands, TX; United States.
Terms of Use and Reproduction
Copyright, Distribution as joint owner in the copyright.
View MARC record | catkey: 15980917