[meteorite-list] NASA finds extra-terrestrial amino-acids in Sudan meteorites

[Rob Matson]

Thanks, Mark -- yes, that's a key bit of missing info! :-)  The
question remains, which particular petrology(ies) of Almahata
Sitta contained the amino acids? Perhaps it wasn't in a ureilitic
sample, but one of the main other breccia constituents, in which
case the amino acids wouldn't necessarily have had the ureilite
temperature history.

Thanks also to Martin, Anne and others who provided links to
more scientific papers -- perhaps the answer to my question
will be found among them.

Happy New Year, All!  --Rob

-----Original Message-----
From: meteorite-list-bounces at meteoritecentral.com
[mailto:meteorite-list-bounces at meteoritecentral.com]On Behalf Of Mark
Hammergren
Sent: Thursday, December 30, 2010 1:59 PM
To: Mike Hankey; meteoritelist; Robert D.Matson
Subject: Re: [meteorite-list] NASA finds extra-terrestrial amino-acids
inSudan meteorites


The article is missing a description of the genesis of the asteroidal
material. Almahata Sitta is a ureilite (among other things), which cooled
from very high temperatures (in excess of 1100C) during its formation.

-- Mark