Lunar Meteorite: Yamato 793169

Yamato Mountains, Antarctica

Yamato 793169 (6 g). The longest dimension is 1.8 cm. Photo credit: Yanai and Kojima (1991)

Yamato 793169 (Y-793169)

Yamato Mountains, Antarctica
Found: 1979 December  8
Mass: 6.1 g (1 piece)

lunar basalt 

Randy Says…

Yamato 793169 is compositionally and mineralogically similar to basalt2 Asuka 881757 and MIL 05035. All three were likely launched from the same crater on the Moon.

More Information

Meteoritical Bulletin Database

Yamato 793169

Map: NIPR Location Map


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Fernandes V. A., Morris A., and Burgess R. (2005) New Ar-Ar Age determinations for the lunar mare basalts Asuka 881757 and Yamato 793169Lunar and Planetary Science XXXVI, abstract no. 1002.

Fernandes V. A., Burgess R., and Morris A. (2009) 40Ar-39Ar age determinations of lunar basalt meteorites Asuka 881757, Yamato 793169, Miller Range 05035, LaPaz Icefield 02205, Northwest Africa 479, and basaltic breccia Elephant Moraine 96008Meteoritics & Planetary Science 44, 805-821.

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Torigoye N., Misawa K., and Tatsumoto M. (1992) U-Th-Pb chronology of Yamato 793169 lunar meteorite. Papers Presented to the 17th Symposium on Antarctic Meteorites, 122-124.

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Torigoye-Kita N., Misawa K., Dalrymple G. B., and Tatsumoto M. (1995) Further evidence for a low U/Pb source in the Moon: U-Th-Pb, Sm-Nd, and Ar-Ar isotopic systematics of lunar meteorite Yamato-793169Geochimica et Cosmochimica Acta 59, 2621-2632.

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