[meteorite-list] Libyan (looks like a) crater

From: Galactic Stone & Ironworks <meteoritemike_at_meteoritecentral.com>
Date: Wed, 9 Dec 2009 10:49:28 -0500
Message-ID: <e51421550912090749u9168a9fya5620dfcce4df6e8_at_mail.gmail.com>

Hi Randy,

As a layman's wild uneducated guess, I'd say the "crater" is more
recent - perhaps from a bomb.

Given the accepted terrestrial age of LDG, the impact site is
presumably ~28 million years old.

I don't know, the feature in that photo doesn't look quite that old
and it looks too tenuous to survive for long in the state we see it.

This might be a case of wishful thinking. Although it would be nice
to finally find the crater associated with LDG.

Best regards and happy huntings,

MikeG


On 12/9/09, Randy Korotev <korotev at wustl.edu> wrote:
> Dear List:
>
> I received this intriguing e-mail today from someone I don't know.
>
> =========================
>
> Dear Randy, I am a geophysicist and had a recent
> trip on Libyan desert for campaign of geophysical
> investigations, mostly GPR and Geoelectric
> tomography. Going back to the camp I found at
> sunset ?due to low angle light- something strange on the flat desert
> surface.
>
> I found a perfect circular crater with melt sand
> scattered around . sand grains are melt and
> embedding larger quartz grains. In my opinion
> that?s a impact crater and sand is melt because
> of the heat wave. Larger grains had no time to melt .
>
> That melt rock has a black matrix-nothing like
> that in the area, also there are no similar
> structures in that flat, flat flat desrt
> surface, sand is only silica and quartz grain and
> no dark matrix can be seen for kilometers.
>
> I made a few geophysics on the spot and found big
> electric anomalies and very anomalous readings of Geoelectric values.
>
> I took a few samples of melt rock ?very heavy really.
>
> I am posting a few photos of the crater.
>
> I have another stone found at 2500 m on the bed
> of a melt glacier, same story, that?s not a stone
> of the area, it is like a fuse, heavy and black
> inside with a very aerodynamic shape, I will mail
> you a photo ( after reading once more your
> recommendations) if interested . for sure not a
> human artifact or an original stone of the area.
>
> Sorry to disturb,
> ...
> =========================
> I put the photos here:
>
> http://meteorites.wustl.edu/meteorwrongs/libyan_crater.htm
>
> The round thing in the desert looks something
> like a crater. Maybe it's a bomb crater. Maybe
> it's a meteorite impact crater. The rock doesn't
> look like samples of Libyan desert glass that
> I've seen. I don't know the LDG story well. Has
> there ever been a crater associated with the glass?
>
>
> Randy Korotev
> Saint Louis, MO
> korotev at wustl.edu
>
>
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Received on Wed 09 Dec 2009 10:49:28 AM PST