[meteorite-list] Terrestrial age of Al-Haggounia?

From: Greg Hupé <gmhupe_at_meteoritecentral.com>
Date: Wed, 21 Mar 2012 13:33:00 -0400
Message-ID: <DF6117F4ABAD41D98DBC4E883358A5AC_at_Gregor>

Hi Mike and All,

Mike quoted, "So this horrible-looking meteorite has been laying around for
about
20,000 years, give or take."

I wouldn't call it, "horrible-looking", well at least not the 'blue' part of
the meteorite! In fact, it is pretty fun to cruise the surface under a
microscope! :)

Best Regards,
Greg

====================
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-----Original Message-----
From: Michael Gilmer
Sent: Wednesday, March 21, 2012 1:20 PM
To: Phil Morgan
Cc: Meteorite Mailing List
Subject: Re: [meteorite-list] Terrestrial age of Al-Haggounia?

Thanks Phil. That is exactly what I was looking for. I had misplaced
the link to that article. I bookmarked it again. :)

So this horrible-looking meteorite has been laying around for about
20,000 years, give or take.

Best regards,

MikeG

-- 
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On 3/21/12, Phil Morgan <roxfromspace at gmail.com> wrote:
> Mike, it's about as "old as dirt".
>
> in the first paragraph at
> http://www4.nau.edu/meteorite/Meteorite/Al_Haggounia.html
>
> It states
>
> The terrestrial age of samples of the bluish-gray material was determined
> by direct measurement of carbon-14 by Dr. Timothy Jull at the University 
> of
> Arizona Accelerator Mass Spectrometry Laboratory, and reported in an
> abstract by Aoudjehane et al. (2009) at the 72nd Meteoritical Society
> Meeting in Nancy, France. The measured age is 23,000?2000 years and
> establishes this meteorite fall as occurring during the Pleistocene Epoch.
> Does that help?
>
> Phil
>
> On Wed, Mar 21, 2012 at 11:03 AM, Michael Gilmer
> <meteoritemike at gmail.com>wrote:
>
>> I hate to bring up Al-Haggounia again, for fear of starting the
>> aubrite-enstatite issue again.  But, I have a question about Al-Hagg
>> that is unrelated to it's problematic classification.
>>
>> Has the terrestrial age of Al-Hagg ever been firmly established?  And
>> if so, how long has it been here on Earth?
>>
>> Best regards,
>>
>> MikeG
>>
>>
>> -----------------------------------------------------------
>> Galactic Stone & Ironworks - MikeG
>>
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>> Facebook: http://www.facebook.com/galacticstone
>> Twitter: http://twitter.com/GalacticStone
>> RSS: http://www.galactic-stone.com/rss/126516
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Received on Wed 21 Mar 2012 01:33:00 PM PDT