[meteorite-list] List of meteorites from Vesta?
From: cdtucson at cox.net <cdtucson_at_meteoritecentral.com>
Date: Thu, 7 Apr 2011 14:24:34 -0400 Message-ID: <20110407142434.AG2NJ.36773.imail_at_fed1rmwml29> Shawn, Mike list, I may have this right? It is my understanding that parings are based not only on like lithology but like chemistry plays an equally important role as well. In determining origin such as assigning certain meteorites to a certain place of origin all of that is basically out the window. This because comparison of Oxygen isotopes rules when it comes to origins. For this reason this group of meteorites is all put into the same category as originating from the same parent body. What complicates this theory is the fact that Mesosiderites and Pallasites also have the same Oxygen isotopes range and therefore might also have come from the same parent. Trouble is , considering what part of a parent those types come from. Their parent may have been destroyed. This lends itself to a possible argument that yes, these are all part of the same parent but, whether it is Vesta remains to be seen. This is why it is a good idea to go to vesta and check it out. Because for all we know this group may no longer have a parent still out there. A case in point. GRA 06128,9. are grouped with the brachinites. This in spite of the fact that they are nothing like brachinites ( they are like Chassigny) . But the Oxygen isotopes says they are related so they became brachinites. Other studies by others showed their O isotopes to fall within the Ureilite zone so I guess it depends on which O isotopes is the correct one. Further, ALH 84001 has O isotopes that do not match the rest of the Martian clan as it is today . It instead has O isotopes that are what an ancient Mars used to have. But again, it is all on the O isotopes. They rule. Carl -- Carl or Debbie Esparza Meteoritemax ---- Michael Gilmer <meteoritemike at gmail.com> wrote: > Hi Shawn, Larry, and Expat Vestans, > > I included Dunite in my answer to Regine's question because I wanted > to be "all inclusive". Of course, the old axiom of "damned if you, > damned if you don't" comes into play here. Had I left out Dunite, > someone would have inevitably suggested it. Since I included it, the > inevitable question of whether or not it actually belongs was brought > up. This highlights the uncertainty inherent in theorizing about > other worlds that we lack first-hand knowledge of. > > Even the widely-accepted HED's are theoretically assigned to Vesta. > There is no "smoking gun" yet that any meteorite originates from Vesta > - at least that is my understanding of the HEDO group. But, so much > "circumstantial" evidence points to Vesta, that it is generally agreed > upon to be the parent body of the HEDO group. I don't think anyone is > expecting the Dawn mission to disprove this theory. Everyone expects > Dawn to confirm what the circumstantial evidence has implied - that > the HEDO group is truly Vestan. > > While olivine diogenite may not appear in the "official" > classification tree, NWA 1877 is classified as "diogenite-an" (of > which, there are only two approved as such). There other is Grosvenor > Mountains 95555, which is described in the write-up as > "diogenite-unique", but looks like an olivine diogenite. Note, there > is at least one possible pairing to NWA 1877 floating around and NWA > 6149 comes to mind. (although the latter may not be officially paired > yet) > > Note, NWA 6149 (and 5 others) are classified as "diogenite-olivine" - > 3 of the others are NWA and one is Antarctic. The earliest apparent > classification for this type (that appears in the Bulletin) is NWA > 5603. (2004) > > Best regards, > > MikeG > > ---------------------------------------------------------------------- > Mike Gilmer - Galactic Stone & Ironworks Meteorites > > Website - http://www.galactic-stone.com > Facebook - http://www.facebook.com/galacticstone > News Feed - http://www.galactic-stone.com/rss/126516 > Twitter - http://twitter.com/galacticstone > EOM - http://www.encyclopedia-of-meteorites.com/collection.aspx?id=1564 > ----------------------------------------------------------------------- > > On 4/7/11, Shawn Alan <photophlow at yahoo.com> wrote: > > Larry and Listerites > > > > > > Thank you Larry for the links..... But I think my question is still > > unanswered or it hasn't been directly spelled out, which I am that type of > > person that needs it all. I do not see Olivine diogenite, and Dunite on the > > classification menu on the Meteoritical Bulletin Database (MBD) which is the > > BIBLE of all bibles when it comes to classification of meteorites. So what I > > am gathering at this time is that these two classes or sub or non at this > > time are not recognized by the MBD as a classification. Am I right? If it > > was wouldn't it be listed on the MBD as one. So do this mean its a subclass > > or something else. I have heard from some that dunites are not a meteorite > > classification. I have to believe that statement could be true because I > > don't see dunites coming up on the MDB classification menu or Olivine > > diogenites. By chance who coined these quote un quote classifications and > > why haven't they been listed on the MBD. I find it odd, but again I > > have seen a few meteorites get these weird names or nick names to create a > > buzz. > > > > Shawn Alan > > IMCA 1633 > > eBaystore > > http://shop.ebay.com/photophlow/m.html > > > > > > > > --- On Thu, 4/7/11, lebofsky at lpl.arizona.edu <lebofsky at lpl.arizona.edu> > > wrote: > > > > > > From: lebofsky at lpl.arizona.edu <lebofsky at lpl.arizona.edu> > > Subject: Re: [meteorite-list] List of meteorites from Vesta? > > To: "Shawn Alan" <photophlow at yahoo.com> > > Cc: fips_bruno at yahoo.de, meteorite-list at meteoritecentral.com > > Date: Thursday, April 7, 2011, 5:40 AM > > > > > > Hi Shawn: > > > > I do not think anyone responded to your question about olinive-bearing > > diogenites. > > > > Here is a links to articles: > > > > http://www.lpi.usra.edu/meetings/lpsc2003/pdf/1502.pdf > > > > http://www.lpi.usra.edu/meetings/lpsc2008/pdf/1835.pdf > > > > Sorry, but have not been keeping up on the subject. > > > > Larry > > > >> Hello Mike, Regine, and Listers > >> > >> Regine there are 486 HED meteorites that are non Antarctica. Mike and > >> Listers I have a question... I was trying to search for the other two > >> HEDOD.... Olivine diogenite, and Dunites on the Meteoritical Bulletin > >> Database and under class they do not have those listed. Am I missing > >> something? Or am I overlooking the classes and I need glasses? > >> > >> > >> Shawn Alan > >> IMCA 1633 > >> eBaystore > >> http://shop.ebay.com/photophlow/m.html > >> > >> > >> > >> > >> > >> > >> > >> > >> [meteorite-list] List of meteorites from Vesta?Michael Gilmer > >> meteoritemike at gmail.com > >> Wed Apr 6 22:58:02 EDT 2011 > >> > >> > >> Previous message: [meteorite-list] List of meteorites from Vesta? > >> Next message: [meteorite-list] List of meteorites from Vesta? > >> Messages sorted by: [ date ] [ thread ] [ subject ] [ author ] > >> > >> Hi Regine, > >> > >> All HEDOD meteorites are assumed to be Vestan in origin - Howardite, > >> Eucrite, Diogenite, Olivine diogenite, and Dunite. :) > >> > >> Best regards, > >> > >> MikeG > >> > >> ---------------------------------------------------------------------- > >> Mike Gilmer - Galactic Stone & Ironworks Meteorites > >> > >> Website - http://www.galactic-stone.com > >> Facebook - http://www.facebook.com/galacticstone > >> News Feed - http://www.galactic-stone.com/rss/126516 > >> Twitter - http://twitter.com/galacticstone > >> EOM - http://www.encyclopedia-of-meteorites.com/collection.aspx?id=1564 > >> ----------------------------------------------------------------------- > >> > >> On 4/6/11, Regine Petersen <fips_bruno at yahoo.de> wrote: > >> > >>> Hi all, > >> > >>> > >> > >>> Is there a list of assumed Vesta meteorites? > >> > >>> > >> > >>> Regine > >> > >>> ______________________________________________ > >> > >>> Visit the Archives at > >> > >>> http://www.meteoritecentral.com/mailing-list-archives.html > >> > >>> Meteorite-list mailing list > >> > >>> Meteorite-list at meteoritecentral.com > >> > >>> http://six.pairlist.net/mailman/listinfo/meteorite-list > >> > >>> > >> > >> > >> > >> -- > >> ---------------------------------------------------------------------- > >> Mike Gilmer - Galactic Stone & Ironworks Meteorites > >> > >> Website - http://www.galactic-stone.com > >> Facebook - http://www.facebook.com/galacticstone > >> News Feed - http://www.galactic-stone.com/rss/126516 > >> Twitter - http://twitter.com/galacticstone > >> EOM - http://www.encyclopedia-of-meteorites.com/collection.aspx?id=1564 > >> ----------------------------------------------------------------------- > >> > >> > >> > >> > >> > >> Previous message: [meteorite-list] List of meteorites from Vesta? > >> Next message: [meteorite-list] List of meteorites from Vesta? > >> Messages sorted by: [ date ] [ thread ] [ subject ] [ author ] > >> > >> More information about the Meteorite-list mailing list > >> > >> ______________________________________________ > >> Visit the Archives at > >> http://www.meteoritecentral.com/mailing-list-archives.html > >> Meteorite-list mailing list > >> Meteorite-list at meteoritecentral.com > >> http://six.pairlist.net/mailman/listinfo/meteorite-list > >> > > > > > > > > ______________________________________________ > > Visit the Archives at > > http://www.meteoritecentral.com/mailing-list-archives.html > > Meteorite-list mailing list > > Meteorite-list at meteoritecentral.com > > http://six.pairlist.net/mailman/listinfo/meteorite-list > > > > > -- > ______________________________________________ > Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html > Meteorite-list mailing list > Meteorite-list at meteoritecentral.com > http://six.pairlist.net/mailman/listinfo/meteorite-listReceived on Thu 07 Apr 2011 02:24:34 PM PDT |
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