[meteorite-list] Possible Mars meteorite!
From: Francis Graham <francisgraham_at_meteoritecentral.com>
Date: Thu Jan 13 19:13:45 2005 Message-ID: <20050114001344.17949.qmail_at_web54705.mail.yahoo.com> Hey, I'm gonna remind everyone on this list back in early 2004 that I said on this list the rovers would find Mars meteorites! Below a certain size, the thin atmosphere of Mars would slow them below hypervelocity, and since big meteorites are comparatively rare, there should still be plenty of small ones. I made a little calculation then based on proportionality, even. I knew it! I don't have good hunches often, so I hope you remember mine back then. Francis Graham --- "Matson, Robert" <ROBERT.D.MATSON_at_saic.com> wrote: > What a coup if this find by Opportunity turns out to > be a meteorite! > Even if it isn't a meteorite, the rock looks very > interesting -- not > least for being all alone in the middle of nowhere. > > If it does in fact turn out to be a meteorite, this > would make for an > interesting entry in the Meteoritical Bulletin! One > problem: no type > specimen submitted. ;-) About all that will be > known with extreme > accuracy are the latitude and longitude (albeit > Martian latitude and > longitude). Upper and lower bounds on the mass can > be estimated from > the dimensions, and after grinding with the RAT and > taking some > lose-ups, they should be able to differentiate > between iron, chondrite, > achondrite, pallasite, mesosiderite, etc. If > chondrules are visible, > they might even be able to make an educated guess > between H/L/LL or > carbonaceous. > > One question: what do we call a meteorite found on > Mars? "Martian > meteorite" is ambiguous... --Rob > ______________________________________________ > Meteorite-list mailing list > Meteorite-list_at_meteoritecentral.com > http://six.pairlist.net/mailman/listinfo/meteorite-list > __________________________________ Do you Yahoo!? Yahoo! Mail - Find what you need with new enhanced search. http://info.mail.yahoo.com/mail_250 Received on Thu 13 Jan 2005 07:13:44 PM PST |
StumbleUpon del.icio.us Yahoo MyWeb |