Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1781727 | Planetary and Space Science | 2010 | 4 Pages |
Abstract
In this paper, we present arguments for the presence of optically active Ti3+ in the structure of low iron pyroxenes to explain the strong 0.49-μm absorption band in spectra of E[II] asteroids. Such an interpretation supports the idea that E asteroid material is formed at high temperature in a strongly reducing medium. We also discuss the possibility of high temperature and hydrated rocks coexisting on some E asteroids. Our discussion is based on the idea of collisional evolution of aubrite parent bodies that was presented by Keil (1989).
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Physical Sciences and Engineering
Earth and Planetary Sciences
Geophysics
Authors
D.I. Shestopalov, L.F. Golubeva, L.A. McFadden, S. Fornasier, M.N. Taran,