I think some information on this has been posted before, but I don't know if all of this has. Of note:
"The dolomite did not acquire a fusion crust. Instead, the surface exposed to the heat of re-entry burned off. This could point to one reason why we have not yet found a sedimentary martian meteorite it lacks that tell-tale black fusion crust that meteorite hunters look for. It will be difficult to recognize them, says Brack. There is no obvious sign or feature that they are meteorites. The only way would be to have a mass spectrometer to measure the oxygen isotopes 16, 17, and 18, as well as nickel, manganese, and chromium, because Martian silicates are expected to be enriched in these elements. " http://www.astrobio.net/news/modules.php?op=modload&name=News&file=article&sid=2567&mode=thread&order=0&thold=0 ______________________________________________ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
