[meteorite-list] How to discover asteroid impacts

From: Sterling K. Webb <sterling_k_webb_at_meteoritecentral.com>
Date: Sat Mar 11 23:48:59 2006
Message-ID: <00a801c64590$437dc180$1a57e146_at_ATARIENGINE>

Hi, Anne,

    Knowing that the crater field in SW Egypt has already
been "discovered," I didn't examine it. The first crater I
listed is 35 miles inside Libya. Kebira itself lies right on
the Egypt-Libya border, with about 60% of the crater lying
in Libya. Whoever goes to poke and probe it will need
the cooperation of TWO governments... Bon chance.
    The second candidate I listed is in Chad and is possibly
reachable from the Aozou Airport, assuming you could ever
get permission to fly in. Again, bon chance.

    The craters shown in the article are at such a small scale
(1200 meters and down) that the search in, say, GoogleEarth,
would be arduous. They're great little craters, though, and
are pretty unmistakable when seen at ground level. And
the shattercone photo is one of the best photos
of shattercones in place that I've ever seen.


Sterling K. Webb
---------------------------------------------------------
----- Original Message -----
From: <Impactika_at_aol.com>
To: <sterling_k_webb_at_sbcglobal.net>; <Meteorite-list@meteoritecentral.com>
Sent: Saturday, March 11, 2006 10:12 PM
Subject: Re: [meteorite-list] How to discover asteroid impacts


> In a message dated 3/11/2006 8:57:48 P.M. Mountain Standard Time,
> sterling_k_webb_at_sbcglobal.net writes:
> Hi, Darren, List
>
> I've been searching the desert for additional craters, too.
> Here's a couple more candidates beside the two mentioned
> on the astroseti.org website.
>
> Let me stress that I am neither a geologist nor an aerial
> photointerpreter, so these are just what looks good to me.
>
> First, 37 miles WSW of the newly noticed Kebira crater,
> at 24 deg 34' North and 24 deg 24' East, is a 2.57 mile
> crater. It has no central uplift and has been cut by ancient
> stream courses, so that its interior is at the same level as
> the surrounding terrain. The rim is raised 100 to 300 feet.
> There are fairly clear traces of an outer ring with a diameter
> of approximately 9 miles. The ancient eroded outcrops in
> which it lies all have features that run a little west (east)
> of north (south). The crater's arcuate features cut right
> across the "lie of the land."
> Frankly, it looks as much (or more) like a crater than
> Kebira itself. The imagery I can access is not detailed
> enough to examine the rim for upturned strata.
>
> Secondly, at 22 deg North and 16.5 deg East, there are
> a number of features that are eliptical in nature stretching
> to the west of the indicated location. This is a region in which
> old outcrops running almost north-south are being "submerged"
> in the Great Sand Sea. Many features are irregular ovals filled
> with sand to the same level as the surrounding terrain, are
> probably former ancient lakes, and lie at the margins of the
> outcrops, as you would expect lakes to do. <SNIP>
> ------------------------------------------------------------------------------
> -------
>
> For more information on that area, did you look on my website at the
> report
> published by a French Expedition: http://www.impactika.com/acarion.html
> And the article in the August issue of Meteorite magazine, written by
> Alain
> Carion.
> They have already found upward of 100 impact craters in that area. Some
> are
> clearly visible on the pictures.
> Enjoy!
>
> Anne M. Black
> www.IMPACTIKA.com
> IMPACTIKA_at_aol.com
> President, I.M.C.A. Inc.
> www.IMCA.cc
>
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Received on Sat 11 Mar 2006 11:48:53 PM PST