back to Department home page

Lunar Meteorite: Yamato 793274 & 981031 (paired stones)

Antarctica, Yamato Mountains


Yamato 793274
(adapted from Takeda et al., 1991).

Yamato 793274 is a small (9 g) meteorite found in th 1979/1980 JARE-NIPR field season. Yamato 981031, a much bigger stone (186 g), was found 19 years later. They are different stones from a single fall.


Whole-rock photo of Yamato 981031. The fusion crust appears to be largely worn off of this side of the rock.

(from Meteorite News, vol. 9, no. 1, June 2000, Antarctic Meteorite Research Center, National Institute of Polar Research, Tokyo)



Broken surface of Yamato 981031.  The distance between the black lines in the background is 2 mm.
Yamato 981031 is a regolith breccia composed of both feldspathic highlands and mafic volcanic material.  The lightest clasts are highland anorthosites.


More Information

Antarctic Meteorite Research Center | National Institute of Polar Research

Meteoritical Bulletin Database

Yamato 793274 | Yamato 981031

Map

NIPR Location Map

References

Arai T. and Warren P. H. (1999) Lunar meteorite Queen Alexandra Range 94281: Glass compositions and other evidence for launch pairing with Yamato 793274, Meteoritics & Planetary Science 34, 209-234.

Arai T., Takeda H., and Warren P. H. (1996) Four lunar meteorites: Crystallization trends of pyroxenes and spinels, Meteorit. Planet. Sci. 31, 877-892.

Arai T., Ishi T., and Otsuki M. (2002) Mineralogical study of new lunar meteorite Yamato 981031 (abstract), In Lunar and Planetary Science 33, abstract no. 2064, Lunar and Planetary Institute, Houston.

Arai T., Ishi T., and Otsuki M. (2002) A new lunar meteorite Yamato 981031: A possible link between two lunar meteorite source craters (abstract), In Antarctic Meteorites XXVII, 4-6, National Institute of Polar Research, Tokyo.

Eugster O., Michel Th., and Niedermann (1992) Solar wind and cosmic ray exposure history of lunar meteorite Yamato-793274. Proc. NIPR Symp. Antarct. Meteorites 5, 23-35.

Kojima H. and Imae N. (2000) Meteorite Newsletter 9(1), 2

Fukuoka T. (1990) Chemistry of Yamato-793274 lunar meteorite (abstract). In Papers presented to the Fifteenth Symposium on Antarctic Meteorites, 122-123. Nat. Inst. Polar Res., Tokyo. 

Koeberl C., Kurat G., and Brandstätter F. (1991) Lunar meteorites Yamato 793274: Mixture of mare and highland components, and barringerite from the Moon, Proc. NIPR Symp. Antarct. Meteorites 3, 33–55. Nat. Inst. Polar Res., Tokyo.

Korotev R. L. (2005) Lunar geochemistry as told by lunar meteorites. Chemie der Erde 65, 297–346.

Korotev R. L., Jolliff B. L., Zeigler R. A., and Haskin L. A. (2003) Compositional constraints on the launch pairing of three brecciated lunar meteorites of basaltic composition, Antarctic Meteorite Research 16, 152–175.

Korotev R. L., Jolliff B. L., Zeigler R. A., and Haskin L. A. (2003) Compositional evidence for launch pairing of the YQ and Elephant Moraine lunar meteorites, Lunar and Planetary Science 34, CD-ROM #1357, Lunar and Planetary Institute, Houston.

Korotev R. L., Irving A. J., and Bunch T. E. (2008) Keeping up with the lunar meteorites – 2008 (abstract). In Lunar and Planetary Science XXXIX, abstract no. 1209, 39th Lunar and Planetary Science Conference, Houston.

Lindstrom M. M. and Martinez R. R. (1990) Lunar meteorite Y793274: A second basaltic breccia (abstract). In Papers Presented to the 15th Symposium on Antarctic Meteorites. Nat. Inst. Polar Res., Tokyo, p. 114-115.

Lindstrom M. M., Mittlefehldt D. W., Martinez R. R., Lipschutz M. J., and Wang M.-S. (1991) Geochemistry of Yamato-82192, -86032 and -793274 lunar meteorites. Proc. NIPR Symp. Antarct. Meteorites 4, 12-32. Nat. Inst. Polar Res., Tokyo. 

Lorenzetti S. and Eugster O. (2002) Noble gas characteristics of lunar meteorite Yamato 981031 paired with basaltic-anorthositic breccia Yamato-793274 (abstract), Antarctic Meteorites XXVII, 75–76, National Institute of Polar Research, Tokyo.

Lorenzetti S., Busemann H., and Eugster O. (2005) Regolith history of lunar meteorites. Meteor. Planet. Sci. 40, 315-327.

Mikouchi T. (1999) Mineralogy and petrology of a new lunar meteorite EET96008: Lunar basaltic breccia similar to Y-793274, QUE94281 and EET87521 (abstract), In Lunar and Planetary Science 30, abstract #1558, Lunar and Planetary Institute, Houston.

Sugihara T., Ohtake M., Takeda H., Owada A., Ishii T., Otsuki M., and and Takeda H. (2004) Petrology and reflectance spectroscopy of lunar meteorite Yamato 981031: Implications for the source region of the meteorite and remote-sensing spectroscopy. Antarctic Meteorite Res. 17, 209–230, National Institute of Polar Research, Tokyo.

Takaoka N. and Yosida Y. (1992) Noble gases in Yamato-793274 and -86032 lunar meteorites. Proc. NIPR Symp. Antarct. Meteorites 5, 36-48.

Takeda H., Mori H., Saito J., and Miyamoto M. (1992) Mineralogical studies of lunar mare meteorites EET87521 and Y793274, Proc. Lunar Planet. Sci., Vol. 22, 275-301.

Takeda H., Saito J., Yanai K., and Kojima H. (1991) Consortium reports of lunar meteorite Yamato-793274. Proc. NIPR Symp. Antarct. Meteorites 4, 3­11. Nat. Inst. Polar Res., Tokyo.

Tatsumoto, M., and W. R. Premo (1991) U-Pb isotopic characteristics of lunar meteorites Yamato-793274 and Yamato-86032. Proc. NIPR Symp. Antarct. Meteorites 4, 56–69. Nat. Inst. Polar Res., Tokyo.

Terada K., Sasaki Y., and Sano Y. (2006) In-situ U-Pb dating of phosphates in lunar basaltic breccia Yamato 981031 (abstract). In Lunar and Planetary Science XXXVII, abstract no. 1665, Lunar and Planetary Institute, Houston.

Terada K., Sasaki Y., and Sano Y. (2006) Ion microprobe U-Pb dating of phosphates in very-low-Ti basaltic breccia (abstract). 69th Annual Meeting of the Meteoritical Society, abstract no. 5129. Lunar and Planetary Institute, Houston.

Warren P. H. and Kallemeyn G. W. (1991) Geochemical investigations of five lunar meteorites: Implications for the composition, origin and evolution of the lunar crust. Proc. NIPR Symp. Antarct. Meteorites 4, 91-117. Nat. Inst. Polar Res., Tokyo. 

Warren P. H., Ulff-Møller F., and Kallemeyn G. W. (2005) “New” lunar meteorites: Impact melt and regolith breccias and large-scale heterogeneities of the upper lunar crust. Meteorit. Planet. Sci. 40, 989–1014.

Yanai K. and Kojima H. (1987) New lunar meteorite: Yamato-793274 (abstract). In Papers Presented to the Twelfth Symposium on Antarctic Meteorites, 17-18, National Institute of Polar Research, Tokyo.

Yanai K. and Kojima H. (1991) Varieties of lunar meteorites recovered from Antarctica. Proc. NIPR Symp. Antarct. Meteorites 4, 70-90.

Chemical Classification

Overview | Yamato 79/98



back to


Prepared by:

Randy L. Korotev


Department of Earth and Planetary Sciences
Washington University in St. Louis


Please don't contact me about the meteorite you think you’ve found until you read this and this.

e-mailkorotev@wustl.edu

Last revised: 28-Mar-2008