[meteorite-list] Chunks of Ice ... Cometary?

[lebofsky at lpl.arizona.edu]

Hello Bernd and Darren:

Swindle and Campins also wrote an article on cometary meteorites in the
May, 2006 issue of Meteorite magazine.

Larry



On Sat, July 12, 2008 11:19 am, bernd.pauli at paulinet.de wrote:
> Darren wrote:
>
>
> "Any numbers on how big the block would have to be? How small the
> surviving piece could be? I'm thinking of some of those chunks of ice that
> fall from the sky some times. Most come from planes. Could some be
> cometary?"
>
>
> Campins H. and Swindle T. (1998) Expected characteristics
> of cometary meteorites (MAPS 33, 1998, pp. 1201-1211):
>
> "The possibility of ice meteorites from comets has been discussed by
> Berczi and
> Lukács (1997). They argue in favor of the survivability of ice meteoroids
> through Earth's atmosphere and conclude that some make it to the ground.
> However, no ice
> meteorite has ever been recovered. Although a cometary origin should be
> considered when and if any falling ice of extraterrestrial origin is
> discovered, we will concentrate on the dusty or rocky portion of comets."
>
>
> Best regards,
>
>
> Bernd
>
>
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