[meteorite-list] Water in space

From: MexicoDoug_at_aol.com <MexicoDoug_at_meteoritecentral.com>
Date: Tue May 31 17:00:11 2005
Message-ID: <8e.285c12b4.2fce2a51_at_aol.com>

Chris P. wrote:

>It depends on what form the water is in. In the case of
>meteorites, surely it is in various hydrates. It is far
>easier to dry out a meteorite in the vacuum of space
>than it is on the Earth, wouldn't you agree?
 
Hola Chris, List,

 
For unbound water: Not sure on that one either way with some of these
primitive unaltered meteorites. If an ordinary chondrite that reaches 1.0 AU from
the Sun is at Minus 5 Centigrade in most of the core after being much cooler
in the Asteroid belt for most of its existence, something would have to heat
it at some point to get the water through the pores you mention, if not all
would need to find an exit via sublimation. In the case of Rumuruti I think
you are covered since the anisotropy indicates the meteoroid was probable
heated above 350 C for long enough...
Saludos, Doug
 
Received on Tue 31 May 2005 05:00:01 PM PDT