[meteorite-list] List of meteorites from Vesta?

From: Michael Gilmer <meteoritemike_at_meteoritecentral.com>
Date: Thu, 7 Apr 2011 13:48:34 -0400
Message-ID: <BANLkTi=LFcUBUPQrVGJCGyGz7qYTDhW3UQ_at_mail.gmail.com>

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

----------------------------------------------------------------------
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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?
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>>
>> 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
>>
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>>
>>
>> --
>> ----------------------------------------------------------------------
>> Mike Gilmer - Galactic Stone & Ironworks Meteorites
>>
>> Website - http://www.galactic-stone.com
>> Facebook - http://www.facebook.com/galacticstone
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>> Twitter - http://twitter.com/galacticstone
>> EOM - http://www.encyclopedia-of-meteorites.com/collection.aspx?id=1564
>> -----------------------------------------------------------------------
>>
>>
>>
>>
>>
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Received on Thu 07 Apr 2011 01:48:34 PM PDT