[meteorite-list] Met Bulletin Update: Sahara 00293

From: Carl Agee <agee_at_meteoritecentral.com>
Date: Fri, 23 Jan 2015 13:15:42 -0700
Message-ID: <CADYrzhq_wm+_RwfSojsRVAC+AU590qvyOzGaiTAwOU-3wgbWGg_at_mail.gmail.com>

Mike and All:

Even poor old L6's can have their 15 minutes of fame! This one has
high pressure minerals: "dark blue ringwoodite and green wadsleyite".
How cool (or should I say hot and shocked?) is that?

Carl Agee
*************************************
Carl B. Agee
Director and Curator, Institute of Meteoritics
Professor, Earth and Planetary Sciences
MSC03 2050
University of New Mexico
Albuquerque NM 87131-1126

Tel: (505) 750-7172
Fax: (505) 277-3577
Email: agee at unm.edu
http://meteorite.unm.edu/people/carl_agee/



On Fri, Jan 23, 2015 at 1:01 PM, Galactic Stone & Ironworks via
Meteorite-list <meteorite-list at meteoritecentral.com> wrote:
> Hi Laurence and List,
>
> Aaaaah, the nebulous picture becomes more clear. Science works in
> mysterious ways.
>
> It must be interesting (and fun) to have access to an institutional
> collection. One could sift through the numerous specimens looking for
> traits that stand out and/or features of interest. I wonder what first
> caught her eye about this old Saharan OC. I wish Ms. Crystyl the best
> of luck on her research and I hope we see her name more often in the
> Bulletin. :)
>
> Thanks for the explanation Laurence. :)
>
> Best regards,
>
> MikeG
>
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>
>
> On 1/23/15, Laurence Garvie via Meteorite-list
> <meteorite-list at meteoritecentral.com> wrote:
>> Crystyl is a grad student in the School of Earth and Space Exploration at
>> ASU. She is studying shock phases in meteorites, and by chance Sah 00293 has
>> something very interesting in it (you can look up her LPSC abstract which
>> will be online in a few weeks). In order for her LPSC abstract to be
>> accepted, she had to first classify and then get the meteorite accepted by
>> the NomCom.
>>
>> Laurence Garvie
>> CMS
>> ASU
>>
>>> ------------------------------
>>>
>>> Message: 6
>>> Date: Thu, 22 Jan 2015 18:30:02 -0500
>>> From: "Galactic Stone & Ironworks" <meteoritemike at gmail.com>
>>> To: Meteorite List <meteorite-list at meteoritecentral.com>
>>> Subject: [meteorite-list] Met Bulletin Update : Sahara 00293
>>> Message-ID:
>>> <CAKBPJW8AFfefp7qUEXfgUC5F49c50Sihyf2wMW_wdGTE6vYsqg at mail.gmail.com>
>>> Content-Type: text/plain; charset=UTF-8
>>>
>>> Hi Bulletin Watchers,
>>>
>>> There is one new approval. I find it curious. It is an old Sahara OC
>>> found by Mr. Labenne fifteen years ago (2000). Crystylynda Fudge was
>>> the classifier. I have never heard this name before. I am just curious
>>> why this meteorite suddenly appeared out of obscurity to be approved
>>> today.
>>>
>>> Best regards and Happy Huntings,
>>>
>>> MikeG
>>>
>>> Link : http://www.lpi.usra.edu/meteor/metbull.php?code=61360
>>>
>>> Bulletin write-up :
>>>
>>> Sahara 00293
>>> (Sahara)
>>> Found: 2000
>>> Classification: Ordinary chondrite (L6)
>>>
>>> History: Reportedly collected in the same location as Sahara 98222.
>>>
>>> Physical characteristics: Chondrules largely integrated into matrix,
>>> difficult to discern in cut section. Abundant shock-induced melt veins
>>> and pockets.
>>>
>>> Petrography: Fine-grained recrystallized plagioclase throughout
>>> matrix, some grains up to 200 ?m. Abundant metal sulfides and troilite
>>> with trace native Cu. Evidence of minor planar deformation features in
>>> olivine. Ubiquitous opaque shock melt veins and associated dark blue
>>> ringwoodite and green wadsleyite.
>>>
>>> Geochemistry: (C. Fudge, ASU) EPMA: Fa24.8?0.1 FeO/MnO: 48.8?1.6 n=11;
>>> low-Ca pyroxene Fs20.9?0.3Wo1.6?0.2 FeO/MnO: 28.6?1.1 n=12; high-Ca
>>> pyroxene Fs8.4?0.2Wo44.4?0.1 FeO/MnO: 20.8?1.2 n=2
>>>
>>> Classification: Ordinary chondrite L6, S6, W2
>>>
>>> Specimens: 27.05 g and one thin section at ASU
>>>
>>>
>>> --
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>>
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Received on Fri 23 Jan 2015 03:15:42 PM PST