Hi Bernhard and all, Bernhard Rems wrote:
4) Iron meteorites originate from the core of a large and destroyed planetoid. Furthermore - there must have been at least two bodies of that size (because planetoids do not explode, they have to collide to eject core material into the solar system. Is this assumption right or wrong? AL says:-) O.K. one other comment from me then I'll give people a brake. Most of the Iron meteorites come from 12 distinct parent bodies (based on chemical classification). We then have an additional 80 some anomalous that provide us with the remainder of our iron meteorites. Some 86% of all iron meteorites belong to the 12 main groups. As McSween says the core of the problem, is iron meteorites have pretty plain spectra and light coming from them (albedo) is poor. Also iron meteorites represent a highly differentiated body one that has been heated (of course) and altered doing a resetting of the isotopes that might help us shed light on their origin. Silicates we find in iron meteorites sometimes help us out a bit with this. --AL Mitterling ______________________________________________ Meteorite-list mailing list [EMAIL PROTECTED] http://six.pairlist.net/mailman/listinfo/meteorite-list
