[meteorite-list] New Analysis Of Odessa Crater Impact Publsihed

From: Paul <bristolia_at_meteoritecentral.com>
Date: Thu, 30 Aug 2007 09:48:22 -0700 (PDT)
Message-ID: <275310.82720.qm_at_web36208.mail.mud.yahoo.com>

Dear Friends,

A paper, which present a detailed analysis of the Odessa crater, Texas
has been published in the journal of ?International Journal of Impact
Engineering?. The paper is:

Littlefield, D. L., P. T. Bauman, and A. Molineuxc, 2007, Analysis
of formation of the Odessa crater. International Journal of Impact
Engineering. vol. 34, no. 12, pp. 1953?1961.

http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6V3K-4MS9RDR-1&_user=3787556&_coverDate=12%2F31%2F2007&_rdoc=1&_fmt=&_orig=search&_sort=d&view=c&_acct=C000061383&_version=1&_urlVersion=0&_userid=3787556&md5=ea5c24c5520861f070d6d17e841771ac

In an hydrodynamics codes analysis, which integrated the geotechnical
(mechanical) properties of the target material along with details of the
topology of the crater, this study concluded:

1. The crater resulted from a near-grazing impact at very high obliquity,
likely greater than 60 degrees;

2. The depth-to-diameter ratio of the Odessa crater ?is in a range
that can be reproduced only with a high-obliquity impact";

3. The meteorite likely came from either the southwest or northeast;

4. meteorite impact energy was more than 50 times larger than
originally estimated.

and 5. the meteor diameter was much larger than 2 meters.

Yours,

Paul H.


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Received on Thu 30 Aug 2007 12:48:22 PM PDT