A new source of basaltic meteorites inferred from Northwest Africa 011

Akira Yamaguchi, Robert N. Clayton, Toshiko K. Mayeda, Mitsuru Ebihara, Yasuji Oura, Yayoi N. Miura, Hiroshi Haramura, Keiji Misawa, Hideyasu Kojima, Keisuke Nagao

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Abstract

Eucrites are a class of basaltic meteorites that share common mineralogical, isotopic, and chemical properties and are thought to have been derived from the same parent body, possibly asteroid 4 Vesta. The texture, mineralogy, and noble gas data of the recently recovered meteorite, Northwest Africa (NWA) 011, are similar to those of basaltic eucrites. However, the oxygen isotopic composition of NWA011 is different from that of other eucrites, indicating that NWA011 may be derived from a different parent body. The presence of basaltic meteorites with variable oxygen isotopic composition suggests the occurrence of multiple basaltic meteorite parent bodies, perhaps similar to 4 Vesta, in the early solar system.

Original languageEnglish
Pages (from-to)334-336
Number of pages3
JournalScience
Volume296
Issue number5566
DOIs
Publication statusPublished - 2002 Apr 12

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Cite this

Yamaguchi, A., Clayton, R. N., Mayeda, T. K., Ebihara, M., Oura, Y., Miura, Y. N., Haramura, H., Misawa, K., Kojima, H., & Nagao, K. (2002). A new source of basaltic meteorites inferred from Northwest Africa 011. Science, 296(5566), 334-336. https://doi.org/10.1126/science.1069408