[meteorite-list] xenolithic breccia's?

[Norm Lehrman]

All,

Maybe someone can elucidate on the terms specifically
as they are used in meteorites, but in geology
"polymict" implies varied clast composition ("poly" =
many), while "xenolith" (= foreign rock), implies
clasts from an external source.

Cheers,
Norm
(http://tektitesource.com) 

--- Walter Branch <branchw at bellsouth.net> wrote:

> What is the difference between a polymict breccia
> and xenolithic breccia?
> 
> -Walter Branch
> 
> 
> ---------------------------------------------
> ----- Original Message ----- 
> From: "Darren Garrison" <cynapse at charter.net>
> To: "met list" <meteorite-list at meteoritecentral.com>
> Sent: Sunday, July 10, 2005 9:06 PM
> Subject: Re: [meteorite-list] xenolithic breccia's?
> 
> 
> On Sun, 10 Jul 2005 17:28:34 -0700, "Tom Knudson"
> <peregrineflier at npgcable.com> wrote:
> 
> >Hello good people of the list!!!  Sure is slow
> today!!!  So, what is a
> >xenolithic breccia?  What meteorites are considered
> a xenolithic breccia?
> 
> http://en.wikipedia.org/wiki/Xenolith
> 
> http://en.wikipedia.org/wiki/Breccia
> 
> 
> >On Google, I only find Ghubara, but that can't be
> the only one.
> 
> One of my favorites was just mentioned a few days
> back-- NWA 3119
> 
> http://www.meteorites.com.au/features/nwa3119.html
> 
> and my much more modest piece
> 
>
http://webpages.charter.net/garrison6328/nwa3119_both.jpg
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