[meteorite-list] NEWS: Almahata Sitta meteorite

[Chris Peterson]

There were a number of presentations about this fall at the Meteoroids 2010 
conference last week. The bottom line is that it has not been definitively 
established that the different stone types didn't come from different falls, 
but that the overall evidence from cosmic ray analysis and weathering 
(little to none) very strongly suggests that all the stones came from a 
single, brecciated parent body (TC3). I didn't hear anybody suggest this was 
certain, but it was largely accepted as true. There remains some interest in 
searching outside the strewn field to establish a control on the matter.

Chris

*****************************************
Chris L Peterson
Cloudbait Observatory
http://www.cloudbait.com


----- Original Message ----- 
From: "Galactic Stone & Ironworks" <meteoritemike at gmail.com>
To: <siegfried at haberer-meteorite.de>
Cc: <meteorite-list at meteoritecentral.com>
Sent: Friday, May 28, 2010 7:49 AM
Subject: Re: [meteorite-list] NEWS: Almahata Sitta meteorite


Hi List,

I have always wondered about the multiple lithologies of this fall.
Is it possible that the multiple lithologies represent more than one
meteorite find?  Did the Almahata Sitta ureilite fall into an existing
strewnfield and all of the meteorites got mixed during the recovery?
Has anyone tested the various lithologies to see if they are in fact
related?

Best regards,

MikeG