Preliminary report on the Yamato-86032 lunar meteorite: I. Recovery, sample descriptions, mineralogy and petrography

• Takeda Hiroshi

  Mineralogical Institute, Faculty of Science, University of Tokyo

• Kojima Hideyasu

  National Institute of Polar Research

• Nishio Fumihiko

  National Institute of Polar Research

• Yanai Keizo

  National Institute of Polar Research

• Lindstrom Marilyn M.

  NASA Johnson Space Center

• Yamato Lunar Meteorite Consortium Group

Abstract

A preliminary consortium examination of the largest lunar meteorite (Y-86032) recovered from the Yamato Mountains revealed that it is a feldspathic breccia, but rather resembles feldspathic fragmental breccias than regolith breccias. Y-86032 is a rugged grayish stone penetrated by numerous compact clast-laden impact melt glassy veins. Distributions of pyroxene and plagioclase chemical compositions are similar to those of Y-82192 and Y-82193,and clast-laden glassy veins and granulitic breccias are abundant. A large light clast in the first consortium sample is another feldspathic fragmental breccia similar to that found in Y-82192.

Journal

• Proceedings of the NIPR Symposium on Antarctic Meteorites

  Proceedings of the NIPR Symposium on Antarctic Meteorites 2 3-14, 1989-10

  National Institute of Polar Research

Details

• CRID: 1571417126749914112
• NII Article ID: 110000029874
• NII Book ID: AA10784627
• ISSN: 09145621
• Text Lang: en
• Data Source:
  • CiNii Articles