Mineralogical comparison of the Y86032-type lunar meteorites to feldspathic fragmental breccia 67016Mineralogical characteristics of lunar meteorites Y82193 and Y86032 were compared to those of Apollo-16 fieldspathic fragmental breccia 67016, using results from electron microprobe analysis and TEM. It was found that the pyroxene mineralogy and chemistry of granulitic clasts in 67016 breccia and the Y86032-type lunar meteorites were much alike, suggesting that the formation processes of the fieldspathic fragmental breccias are also important in the genesis of lunar meteorites. There were differences in matrix microtextures, however, implying that 67016 and Y86032-type breccia formation temperatures were different.
Document ID
19900046408
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Takeda, H. (Tokyo Univ. Japan)
Mori, H. (Tokyo Univ. Japan)
Miyamoto, M. (Tokyo, University Japan)
Wentworth, S. J. (Lockheed Engineering and Sciences Co. Houston, TX, United States)
Mckay, D. S. (NASA Johnson Space Center Houston, TX, United States)