Trace element distributions in Yamato-793605, a chip off the "martian lherzolite" block

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概要

• 論文の詳細を見る

• In situ ion microprobe analyses of various phases in Yamato-793605 (Y79) confirm that it is very similar to the other two lherzolitic shergottites, ALHA77005 and LEW88516. Differences in absolute REE abundances between bulk samples of these meteorites can be largely accounted for by sample heterogeneity. The three lherzolites were formed by essentially identical processes and they may even have originated from the same lithological unit on Mars. Preservation of major element zonation in olivines of Y79 indicates that it is less equilibrated than the other lherzolitic shergottites, and may have crystallized at shallower depth. The parent magmas of lherzolitic shergottites, like those of other shergottites, were derived by partial melting of a partly depleted martian mantle.

• 国立極地研究所の論文

著者

• Mckay Gordon

  Nasa Johnson Space Center

• Wadhwa Meenakshi

  Department of Geology, The Field Museum

• Crozaz Ghislaine

  Department of Earth and Planetary Sciences and McDonnell Center for the Space Sciences, Washington U

• Wadhwa Meenakshi

  Department Of Geology The Field Museum

• Crozaz Ghislaine

  Department Of Earth And Planetary Sciences And Laboratory For Space Sciences Washington University

• Crozaz Ghislaine

  Department Of Earth And Planetary Sciences And Mcdonnell Center For The Space Sciences Washington Un

関連論文

• Trace element distributions in Yamato-793605, a chip off the "martian lherzolite" block
• Trace element distributions in the Yamato 000593000749,NWA 817 and NWA 998 nakhlites: Implications for their petrogenesis and mantle source on Mars

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