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Article Dans Une Revue Planetary and Space Science Année : 2010

Titanium-bearing pyroxenes of some E asteroids: Coexisting of igneous and hydrated rocks

Résumé

In this paper, we present arguments for the presence of optically active Ti 3+ in the structure of low iron pyroxenes to explain the strong 0.49-mum 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).

Dates et versions

hal-03785486 , version 1 (23-09-2022)

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D. I. Shestopalov, L. F. Golubeva, Lucy-Ann A. Mcfadden, Sonia Fornasier, M. N. Taran. Titanium-bearing pyroxenes of some E asteroids: Coexisting of igneous and hydrated rocks. Planetary and Space Science, 2010, 58, pp.1400-1403. ⟨10.1016/j.pss.2010.06.012⟩. ⟨hal-03785486⟩
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