BINZEL R.P. et al. (2000) Evidence for a differentiated asteroid beyond 3 AU from the sun (MAPS 35-5, 2000, Suppl., A026):
"... a rare basaltic asteroid beyond 3 AU from the Sun, a distance that appears too great to allow any plausible relation to Vesta (at 2.36 AU) or any known differentiated asteroid family. The 30-km (estimated size) asteroid 1459 Magnya has high-quality visible and near-infrared spectral measurements that reveal the characteristic signature of a basaltic surface. We believe that Magnya may be a rare surviving fragment from a larger, differentiated planetesimal that was disrupted long ago ..." NYQUIST L.E. et al. (2003) Early volcanism on the NWA 011 parent body (MAPS 38-7, 2003, A059): "The only basaltic asteroid other than 4 Vesta is 1459 Magnya at ca. 3.15 AU. The old age of NWA 011, its close similarity to EET 90020, and the probability that its unusual O-isotopic composition is a conse- quence of formation of its parent body adjacent to carbonaceous asteroids of similar O-isotopic composition in the outer main belt, suggest that it is of asteroidal rather than mercurian origin." ______________________________________________ Meteorite-list mailing list [EMAIL PROTECTED] http://six.pairlist.net/mailman/listinfo/meteorite-list
