[meteorite-list] Impact Melt Breccia Statistics

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From: Sharkkb8_at_aol.com <Sharkkb8_at_meteoritecentral.com>
Date: Thu Apr 22 10:13:08 2004
Message-ID: <1e5.763d687.2bd83620_at_aol.com>

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martinh_at_isu.edu writes:

> Where did the information about it [Bison] being an IMB come from? Here is a
> pic of my Bison slice

I currently have a small Bison piece (among others) up on ebay ....shameless
plug: ebay listing #2171352069. When I list items, I use either the Natural
History Museum's "Catalogue of Meteorites" (Monica Grady, et. al) and/or "
Meteorites from A-Z" (Anne Black and Mike-and-Bill Jensen) for
classification/date/TKW details. "Meteorites from A-Z" will have its Second
Edition available in September '03...speaking of shameless plugs ;-) I'm at
work right now and don't have access to either reference work, but I have to
believe that both identify Bison as an IMB (impact melt breccia).

When I listed the auction I suffered a momentary brain-hiccup & I attached an
incorrect picture (added URL to the correct pic is listed within the auction
text). But looking at Martin's pic too, it begs the question: What are the
cracks within the matrix? When I listed mine, I noted the cracks but
assumed/suggested that they might be a result (considering the piece's small
size) of cutting. Martin's piece has similar cracking but I begin to wonder
if cutting is the answer, with his being being substantially larger and more
solid. Any observations?

 Gregory




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<HTML> martinh_at_isu.edu writes: 
 
<BLOCKQUOTE TYPE=3DCITE style=3D"BORDER-LEFT: #0000ff 2px solid; MARGIN-LEFT=
: 5px; MARGIN-RIGHT: 0px; PADDING-LEFT: 5px">Where did the information about it [Bison] being a=
n IMB come from? Here is a pic of my Bison slice</BLOCKQUOTE> 
 
 
I currently have a small Bison piece (among others) up on ebay=
....shameless plug: ebay listing #2171352069.   When I list items=
, I use either the Natural History Museum's "Catalogue of Meteorites"=
(Monica Grady, et. al) and/or "Meteorites from A-Z" (Anne Black and=20=
Mike-and-Bill Jensen) for classification/date/TKW details.  "Meteori=
tes from A-Z" will have its Second Edition available in September '03...=
speaking of shameless plugs ;-)   I'm at work right now and don't=20=
have access to either reference work, but I have to believe that both identi=
fy Bison as an IMB (impact melt breccia).  
 
When I listed the auction I suffered a momentary brain-hiccup & I attach=
ed an incorrect picture (added URL to the correct pic is listed within the a=
uction text).  But looking at Martin's pic too, it begs the question:&n=
bsp; What are the cracks within the matrix?  When I listed mine, I note=
d the cracks but assumed/suggested that they might be a result (considering=20=
the piece's small size) of cutting.  Martin's piece has similar crackin=
g but I begin to wonder if cutting is the answer, with his being being subst=
antially larger and more solid.   Any observations? 
 
       Gregory 
 
 
 
 
</HTML>
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Received on Wed 23 Apr 2003 02:32:00 PM PDT

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