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

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

Aug 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010p%26ss...58.1400s&link_type=abstract

Planetary and Space Science, Volume 58, Issue 10, p. 1400-1403.

Physics

Scientific paper

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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