Thanks Peter, I had forgotten how large Zagami really was. So much for going strictly by memory. That would make an upward limit much higher for initial size especially if one uses 50% ablation loss. I personally don't think it is that high but that is still a approximately up to a hefty 40kg original mass. Zagami was high in glass and probably pushing the limits of mass and acceleration without turning completely to glass-- else vaporizing. I just looked and there were 4 or 5 Martians falling between 7 and 18 kgs and those lie outside the theoretical argument I just put forth. No matter how it is tweaked, an upward limit of 7 kg initial is obviously wrong.
As to the press release, it claims "US record" size so I don't think this is the Tissint mass of Anne's letter. Regards, Elton ----- Original Message ----- > From: Peter Scherff <petersche...@rcn.com> > To: 'Anne Black' <impact...@aol.com>; mstrema...@yahoo.com; > meteorite-list@meteoritecentral.com; cometeoritec...@yahoogroups.com > Cc: > Sent: Thursday, March 28, 2013 10:19 PM > Subject: RE: [meteorite-list] "Great Discovery" maybe ;-) NOT > > Hi, > > Zagami is 18 kg but that is nowhere near the size of this rock(s). > > Peter > > -----Original Message----- > From: meteorite-list-boun...@meteoritecentral.com > [mailto:meteorite-list-boun...@meteoritecentral.com] On Behalf Of Anne Black > Sent: Thursday, March 28, 2013 10:12 PM > To: mstrema...@yahoo.com; meteorite-list@meteoritecentral.com; > cometeoritec...@yahoogroups.com > Subject: Re: [meteorite-list] "Great Discovery" maybe ;-) NOT > > Yes, Elton, certainly bogus. > But I wonder if it is in anyway connected to another email I found in my spam > box today. Here is most of it: > > "We are writing you regarding a special offer. We think you have already > heard of the Tissint meteorite, the Martian meteorite that crashed in Morocco > in > July 2011 and the Natural History Museum has bought one of its pieces lately > (1.1 kg). > In fact, That 1.1 kg stone of Tissint Martian meteorite is just a small piece > of > the mother Tissint meteorite which we still have safe and sound. The latter > is > about 800-1000 times bigger than the meteorite which is at the Natural > History > Museum gallery at the moment. We recovered the whole Martian rock soon after > it > fell, then we hid it in a professional way following the advice tips of some > experts to prevent any contamination,so if you would like to buy from us, > contact us through our email address: meteoritebusin...@gmail.com Reply only > if > interested please," > > Well, I am not interested. But 800-1000 times bigger than the 1.1kg piece > would > make it 900 to 1100 kg mass. > About the same size than that the one in that announcement. > Coincidence? Same scam? > > Oh, and BTW, they want to sell it as one piece! No the price is not > mentionned. > Did anyone else get that email? > > > Anne M. Black > www.IMPACTIKA.com > impact...@aol.com > > > -----Original Message----- > From: MEM <mstrema...@yahoo.com> > To: Anne Black <impact...@aol.com>; meteorite-list > <meteorite-list@meteoritecentral.com>; COMeteoriteClub > <cometeoritec...@yahoogroups.com> > Sent: Thu, Mar 28, 2013 8:00 pm > Subject: Re: [meteorite-list] "Great Discovery" maybe ;-) NOT > > > It has bogus written all over it. Here is a big why-- 387 kg exceeds > the mass > of ejectable material from the surface of Mars by about 380± kgs. The > problem is > the "Goldielocks conundrum: Not too small-not too large but just > right". A > size small too small might make escape velocity but, may be too small > to survive > entry. The launching wack has to be just right-- too hard and the > target gets > vaporized. Too large a a target rock and the inertia results in melting > entirely > before it can get moving. The "not too small--not too large" envelope > > is > theoretically between approx. 2kg up to 5-7(?) kg sized chunks at the > surface > which survive the "just right"-- sized impactor. > > > To fit this "find" scenario, multiple rocks--all most identical in > size, adding > up to 387 kg is statistically impossible in that no less than 76x10kg > sized > rocks would have to have been gently blasted from the surface of Mars, > fly in > formation through a perfect trajectory all arriving as a meteor storm > loosing > not more than half their mass during entry and every last stone would > have to > have been recovered. > What we believe we know about orbital physics says this is impossible. > We have > already ruled out the possibility of a single mass making it into orbit > so this > 387 TKM could not be just a few stones-- and really be from Mars. > > > Any single stone in this recovery(sic) exceeding 5-7kg(no ablation > loss) is > automatically over the physical limit for a max-sized Martian > meteorite as I am > going by memory. Someone might want to consult McSween's Meteorites > and their > Parent Bodies to see is calculations. I though he placed a limit of > around 2±kg > for recovered stone but I believe we did recover a 3-4 kg Martian. Some > inquiring mind might want to post the largest single mass or TKW for a > single > Martian meteorite. Note this doesn't rule out the paired falls we > have where > multiple hand -sized stones were recovered over a very large area. > > The fact that the levels of copper, silver, and gold are discussed is > another > read flag. I don't keep up with what is commercially mine-able ore but > for > copper I assume it has to be 5 or more oz per ton for copper and I > don't > remember any meteorite chemistry that had more than a few ppb of any of > those > metals. The sulfate type ore deposit has yet to be identified on Mars > but those > are even more fragile than silicate deposits. Oh and where is the zinc > this is > after all a sulfate type ore occurrence according to the press release? > > The only Glyn Howard I can find a reference to is Glyn Howard, science > teacher/meteoritics scientist, ... Successful Music Teacher and Author > Continues > Streak of Popular Kids' Books... He has not ever published a peer > reviewed > classification for a meteorite that I can find but the press release > says he > classified it himself... In addition to having bogus written all over > it, I can > detect the smell of Curry in there somewhere.... > > > Elton > > > >> ________________________________ >> From: Anne Black <impact...@aol.com> >> To: meteorite-list@meteoritecentral.com; > cometeoritec...@yahoogroups.com >> Sent: Thursday, March 28, 2013 8:37 PM >> Subject: [meteorite-list] "Great Discovery" maybe ;-) >> >> Just in case you missed this "great" announcement: >> >> http://world.einnews.com/247pr/337148 >> >> Enjoy! >> >> >> Anne M. Black >> www.IMPACTIKA.com >> impact...@aol.com >> >> ______________________________________________ >> >> Visit the Archives at http://www.meteorite-list-archives.com >> Meteorite-list mailing list >> Meteorite-list@meteoritecentral.com >> http://six.pairlist.net/mailman/listinfo/meteorite-list >> >> >> > > > ______________________________________________ > > Visit the Archives at http://www.meteorite-list-archives.com > Meteorite-list mailing list > Meteorite-list@meteoritecentral.com > http://six.pairlist.net/mailman/listinfo/meteorite-list > ______________________________________________ Visit the Archives at http://www.meteorite-list-archives.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
