Re: [meteorite-list] vaca muerta eucrite
--- On Thu, 8/14/08, mckinney trammell [EMAIL PROTECTED] wrote: vaca muerta eucrite--can anyone give any scientific info on this + pix? Here are the basic points. All known mesosiderites come from a common parent/daughter which was a Vesta-like differentiated asteroid(having eucrite and diogenite material and possibly iron core (e.g Crust-Mantle-Core) Since howardites are eucrite/diogenite/plus mixes some portion of regolith is likely incorporated in the overall petrology but too small for us to recognize as such. This body was extensively disrupted by collision(s) which greatly mixed the strata: either a Vesta-like asteroid and it's a metallic core AND/OR some other massive iron body. A massive portion (if not the entire body) was essentially turned into something akin to an Impact Melt Breccia(IMB) but with achondrite materials. On petrological study of Vaca Mutera specifically, what is commonly referred to as eucrite nodules are a wide ranging mix of eucrite and diogenite composition. They do NOT represent a different fall or named meteorite. Owing to differential weathering: iron weathering faster than silicate, the clasts of eucrite character have been recovered as nodules in the VM strewn field. They are also seen in sawed sections contained in classic meso iron/silicate masses. I don' have any statistcs or percentages but my swag is that they are probably less than 3-5% of this meteorite and would be rated as uncommon to rare. Perhaps others have better data. I don't have a photo available but on a macro level the ones I have are fairly unremarkable; looking much like any other suspected meteorite: dark walnut-like without true fusion crust. I have been told that because of the random mix, their interiors contain a wide range of crystalline textures. Regards, Elton __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] vaca muerta eucrite
can anyone give any scientific info on this + pix? __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Vaca Muerta eucrite
Hi all, a couple of years ago I bought a big slice of Vaca Muerta Eucrite inclusions, but I cannot find any information on the web, I can only find informations about the more famous mesosiderite... have someone some informations for me?? like the TKW or a correct description?? Why the MetBull site doesn't tell anything about this strange meteorite?? http://tinyurl.com/649my6 This is my sample: http://web.tiscali.it/francesco.moser/Immagini/Meteoriti/Rocciose-Acondriti/VacaMuertaEu.jpg http://web.tiscali.it/francesco.moser/Immagini/Meteoriti/Rocciose-Acondriti/VacaMuertaEu_3195.jpg Thank you! Ciao Francesco Moser http://web.tiscali.it/francesco.moser/ IMCA #1510 www.imca.cc __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Vaca Muerta eucrite
I have 3.19gr VM Eucrite in a small display together a 5.88 gr meso, a 12.02gr metal nodule and a 4.47gr olivine. It's entitled, The Four Faces Of Vaca Muerta. Jerry Flaherty - Original Message - From: Moser Francesco [EMAIL PROTECTED] To: ZZ ML Meteorite-List meteorite-list@meteoritecentral.com Sent: Tuesday, May 06, 2008 5:23 PM Subject: [meteorite-list] Vaca Muerta eucrite Hi all, a couple of years ago I bought a big slice of Vaca Muerta Eucrite inclusions, but I cannot find any information on the web, I can only find informations about the more famous mesosiderite... have someone some informations for me?? like the TKW or a correct description?? Why the MetBull site doesn't tell anything about this strange meteorite?? http://tinyurl.com/649my6 This is my sample: http://web.tiscali.it/francesco.moser/Immagini/Meteoriti/Rocciose-Acondriti/VacaMuertaEu.jpg http://web.tiscali.it/francesco.moser/Immagini/Meteoriti/Rocciose-Acondriti/VacaMuertaEu_3195.jpg Thank you! Ciao Francesco Moser http://web.tiscali.it/francesco.moser/ IMCA #1510 www.imca.cc __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Vaca Muerta eucrite
Hello Moser. They are the same meteorite. The eucrite pieces were apparently mixed into the silicate and metal portion in the collision between the two parent bodies. Due to weathering at different rates the eucrite nodules were sometimes found with no obvious meso-like material giving the impression that they were two separate meteorites. Elton --- On Tue, 5/6/08, Moser Francesco [EMAIL PROTECTED] wrote: From: Moser Francesco [EMAIL PROTECTED] Subject: [meteorite-list] Vaca Muerta eucrite To: ZZ ML Meteorite-List meteorite-list@meteoritecentral.com Date: Tuesday, May 6, 2008, 5:23 PM Hi all, a couple of years ago I bought a big slice of Vaca Muerta Eucrite inclusions, but I cannot find any information on the web, I can only find informations about the more famous mesosiderite... have someone some informations for me?? like the TKW or a correct description?? Why the MetBull site doesn't tell anything about this strange meteorite?? http://tinyurl.com/649my6 This is my sample: http://web.tiscali.it/francesco.moser/Immagini/Meteoriti/Rocciose-Acondriti/VacaMuertaEu.jpg http://web.tiscali.it/francesco.moser/Immagini/Meteoriti/Rocciose-Acondriti/VacaMuertaEu_3195.jpg Thank you! Ciao Francesco Moser http://web.tiscali.it/francesco.moser/ IMCA #1510 www.imca.cc __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Vaca Muerta Eucrite Inclusions????
Greetings list members. I just purchased a very nice 14+ gram Vaca Muerta eucrite inclusion from Eric Olson Congrats, Dave! any information on how these eucritic inclusions came about being in the Vaca Muerta mesosiderite meteorites? Here is a useful reference: RUBIN A.E. et al. (1987) Diverse eucritic pebbles in the Vaca Muerta mesosiderite (Earth Plan. Sci. Lett. 84, 1-14). The culprit was probably a collision of a eucritic component with an iron component and the the two ingredients were then mixed. Bernd To: [EMAIL PROTECTED] Cc: [EMAIL PROTECTED] __ Meteorite-list mailing list [EMAIL PROTECTED] http://www.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Vaca Muerta Eucrite Inclusions????
Greetings list members. I just purchased a very nice 14+ gram Vaca Muerta eucrite inclusion from Eric Olson of ELKK Meteorites, and was wondering if there was any information on how these eucritic inclusions came about being in the Vaca Muerta mesosiderite meteorites? Thanks in advance! Dave [IMCA #2725] __ Do you Yahoo!? SBC Yahoo! DSL - Now only $29.95 per month! http://sbc.yahoo.com __ Meteorite-list mailing list [EMAIL PROTECTED] http://www.pairlist.net/mailman/listinfo/meteorite-list
