A New Source of Basaltic Meteorites Inferred from Northwest Africa 011-Reference-Cited by-同舟云学术

A New Source of Basaltic Meteorites Inferred from Northwest Africa 011

Published:2002-04-12 Issue:5566 Volume:296 Page:334-336
ISSN:0036-8075
Container-title:Science
language:en
Short-container-title:Science

Author:

Yamaguchi Akira¹²,Clayton Robert N.³,Mayeda Toshiko K.³,Ebihara Mitsuru⁴,Oura Yasuji⁴,Miura Yayoi N.⁵,Haramura Hiroshi¹,Misawa Keiji¹²,Kojima Hideyasu¹²,Nagao Keisuke⁶

Affiliation:

1. Antarctic Meteorite Research Center, National Institute of Polar Research, Tokyo 173-8515, Japan.

2. The Graduate University for Advanced Studies, Tokyo 173-8515, Japan.

3. Enrico Fermi Institute, University of Chicago, Chicago, IL 60637, USA.

4. Department of Chemistry, Tokyo Metropolitan University, Hachioji, Tokyo 192-0397, Japan.

5. Earthquake Research Institute, University of Tokyo, Tokyo 113-0032, Japan.

6. Laboratory for Earthquake Chemistry, University of Tokyo, Tokyo 113-0033, Japan.

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.

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

Reference35 articles.

1. J. T. Wasson G. W. Wetherill in Asteroids T. Gehrels Ed. (Univ. of Arizona Press Tucson AZ 1979) pp. 926–974.

2. D. W. Mittlefehldt T. J. McCoy C. A. Goodrich A. Kracher in Planetary Materials Reviews in Mineralogy vol. 36 chap. 4 J. J. Papike Ed. (Mineralogical Society of America Washington DC) pp. 1–195.

3. Only three groups of basaltic meteorites with asteroidal origin (eucrites angrites and basaltic inclusions of mesosiderites) have been sampled to date. The basaltic inclusions in mesosiderites are mineralogically similar to eucrites but the genetic relationships between the two basalts have been yet controversial. Angrites are a small group of basaltic meteorites mineralogically different from eucrites. The oxygen isotopic compositions of these basaltic meteorites indicate derivation from a common isotopic reservoir (23). In contrast to the strong link between eucrite and 4 Vesta the parent bodies of angrites and mesosiderites remain unidentified. See (2) for detail.

4. Chips off of Asteroid 4 Vesta: Evidence for the Parent Body of Basaltic Achondrite Meteorites

5. Abstracts

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