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- To: TMS/TNS/HRC <musnat@alaska.net>
- Subject: King Tut's Tektite - Part 2 of 4
- From: Bernd Pauli HD <bernd.pauli@lehrer1.rz.uni-karlsruhe.de>
- Date: Sun, 04 Apr 1999 20:50:31 +0200
- CC: meteorite-list@meteoritecentral.com
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- References: <199904040709.WAA16226@alaska.net>
- Resent-Date: Sun, 4 Apr 1999 15:08:02 -0400 (EDT)
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Discovery Channel Online, April 4, 1999 - King Tut Mystery Solved (By Rossella Lorenzi, Discovery Online News): > "Its origin is probably celestial, caused by the impact on the sand > of a chondritic meteorite or comet," says De Michele. "The glass is > scattered over a 15-mile diameter area, but unfortunately, no crater > has been found yet." > James R. Underwood Jr., professor emeritus of geology at Kansas State > University, says there might not be a crater. "It could have been > produced by a low-altitude explosion of an asteroid or comet. The > searing heat from the explosion may have melted surficial material > that then cooled quickly to form the glass," he explains. WASSON J.T. et al. (1998)Possible Formation Of Libyan Desert Glass By A Tunguska-Like Aerial Burst (Meteoritics 33-4, 1998, A163, excerpts): Libyan Desert glass (LDG) consisting of samples ranging in size up to 22 kg is found in a region with dimensions of about 50 km E-W and 130 km north-south in the Western Desert of Egypt. The process that formed these high (980 mg/g) SiO2 glassy objects is poorly understood. Although most past researchers have attributed LDG to formation during a cratering event, there remains serious doubt that impact cratering can create such clast-free materials. We suggest that an aerial burst, similar to Tunguska but about 10^4 x larger, may have been responsible. Best Easter wishes, Bernd ---------- Archives located at: http://www.meteoritecentral.com/list_best.html For help, FAQ's and sub. info. visit: http://www.meteoritecentral.com/mailing_list.html ---------- ---------- Archives located at: http://www.meteoritecentral.com/list_best.html For help, FAQ's and sub. info. visit: http://www.meteoritecentral.com/mailing_list.html ----------
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