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A More Reduced Mantle Source for Enriched Shergottites; Insights from the Olivine-Phyric Shergottite Lar 06319A detailed petrographic study of melt inclusions and Cr-Fe-Ti oxides of LAR 06319 leads to two main conclusions: 1) this enriched oxidized olivine- phyric shergottite represents nearly continuous crystallization of a basaltic shergottite melt, 2) the melt became more oxidized during differentiation. The first crystallized mineral assemblages record the oxygen fugacity which is closest to that of the melt s mantle source, and which is lower than generally attributed to the enriched shergottite group.
Document ID
20100009790
Acquisition Source
Johnson Space Center
Document Type
Conference Paper
Authors
Peslier, A. H. (Jacobs Technologies Engineering Science Contract Group Houston, TX, United States)
Hnatyshin, D. (Alberta Univ. Edmonton, Alberta, Canada)
Herd, C. D. K. (Alberta Univ. Edmonton, Alberta, Canada)
Walton, E. L. (MacEwan Univ. Edmonton, Alberta, Canada)
Brandon, A. D. (Houston Univ. Houston, TX, United States)
Lapen, T. J. (Houston Univ. Houston, TX, United States)
Shafer, J. (Houston Univ. Houston, TX, United States)
Date Acquired
August 25, 2013
Publication Date
March 1, 2010
Subject Category
Geophysics
Report/Patent Number
JSC-CN-19992
Meeting Information
Meeting: 41st Lunar and Planetary Sciencie Conference
Location: The Woodlands, TX
Country: United States
Start Date: March 1, 2010
End Date: March 5, 2010
Sponsors: NASA Johnson Space Center, Lunar and Planetary Inst.
Distribution Limits
Public
Copyright
Public Use Permitted.

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