[meteorite-list] Impact Melt Breccia Statistics

From: j.divelbiss_at_att.net <j.divelbiss_at_meteoritecentral.com>
Date: Thu Apr 22 10:13:08 2004
Message-ID: <20030423220211.49F5753580_at_pairlist.net>

Hello all,

Another nice L6 IMB for anyone interested in these things is the beautiful
Chico...a find from New Mexico I believe. One of my favorite slices.

Recently I received a very nice slice of the Park Forest with both
lithologies...it is very special. Mostly the dark phase. The metal reflectance
characteristics of this piece/meteorite is something unique (in my eyes) to
impact melt breccias(IMB). I have 5 or 6 different IMB's now and they all seem
to have different angles of "dullness" and "brightness" when moving the piece
around in a good light. One view can look like no metal at all...and another
shows great amounts of metal, and it is very reflective in nature. Most
chondrites have this feature, but it seems to be exacerbated with IMB's.

Has anyone noticed this other than me?

John
>
> Thank you for the update, in my records this was clasified
> just L5.
>
> Really nice slice indeed...
>
> take care,
>
> pekka
>
> fcressy wrote:
>
> >Hello Pekka and all,
> >
> >Rio Limay can also be added to the L5 IMB list. A fantastic 8.65 kilo slice
> >can be seen at Al Lang's website. The link is:
> >http://www.nyrockman.com/museum/rio-limay-8.65.htm
> >
> >Wouldn't you all just love to have that slice? Talk about a trophy wife,
> >oops that's "trophy slice". Guess I was thinking about that other contest
> >thread ;-)
> >
> >Enjoy,
> >Frank
> >
> >
> >
> >
> >----- Original Message -----
> >From: Pekka Savolainen
> >To: Ryan Darby ; meteorite-list_at_meteoritecentral.com
> >Sent: Wednesday, April 23, 2003 3:31 AM
> >Subject: Re: [meteorite-list] Impact Melt Breccia Statistics
> >
> >
> >
> >
> >Well, there are several imb:s, but as far as I know, the only L5 imb
> >this far has been Cat Mountain.
> >
> >Some in other groups;
> >
> >- L imb, Caldwelll
> >- LL6 imb, Bison
> >- H5-6 imb, Smyer
> >- H6 imb, Orvinio
> >
> >+ NWA 722 and PAT 91501 are L imb:s,
> >
> >also in LUN and EH can be found some. Donīt know exactly,
> >what this list means with Impact Melt Breccia, perhaps just ones
> >with no other classification? There may be some new classifica-
> >tions added, because the list ends in 1999.
> >
> >
> >pekka
> >
> >
> >
> >Ryan Darby wrote:
> >
> >Back to a question from a few days ago - how many Impact Melt Breccia's,
> >like Forest Park .
> >
> >According to this site, up to 1999, there have been 2 :
> >
> >http://www.ticetboo.demon.co.uk/mstats.htm
> >
> >Still trying to figure their tables out, but these are nice stats anyway.
> >
> >
> >--
> >
> >
> >
> >
> >Pekka Savolainen
> >Jokiharjuntie 4
> >FIN-71330 Rasala
> >FINLAND
> >
> >+ 358 400 818 912
> >
> >Group Home Page: http://www.smartgroups.com/groups/eurocoin
> >Group Email Address: eurocoin_at_smartgroups.com
> >
> >
> >
>
> --
>
>
>
>
> Pekka Savolainen
> Jokiharjuntie 4
> FIN-71330 Rasala
> FINLAND
>
> + 358 400 818 912
>
> Group Home Page: http://www.smartgroups.com/groups/eurocoin
> Group Email Address: eurocoin_at_smartgroups.com
>
>
>
>
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Received on Wed 23 Apr 2003 06:02:10 PM PDT