[meteorite-list] Meteorite with holes?!?

From: Marc D. Fries <m.fries_at_meteoritecentral.com>
Date: Wed Aug 18 10:09:23 2004
Message-ID: <1167.10.17.14.1.1092838153.squirrel_at_webmail.ciw.edu>

Cut it. If they are vescicles, then they will be inside the meteorite as
well. As it is, this just looks like chondrule loss due to weathering.
The side with the most holes could well indicate the prevailing wind
direction where it sat. Cool-looking stone, though, and possibly a rather
picturesque example of terrestrial alteration.

Now here's some speculation - if you have a meteorite with armored
chondrites and leave it out to weather, won't the metal rust away first,
let the chondrules drop out, and leave holes in the rock much like those
pictured here?

Cheers,
MDF


> G'day List,
>
> Just received what looks like an ordinary chondrite, but the weird thing
> is
> that it is loaded with holes in the surface. The 37g piece has 6 sides of
> which every one has some type of hole. They are quite prolific throughout
> the whole stone and vary widely in size. I've created a quick page at the
> address below if anyone is interested in taking a look. I will probably
> slice it at some stage to check out the interior and will post more photos
> at that stage. I'd be interested in hearing any comments or theories on
> this
> one as this is the first meteorite I've personally seen with so many
> holes.
>
> http://www.meteoritesaustralia.com/features/holes.html
>
> Cheers,
>
> Jeff Kuyken
> I.M.C.A. #3085
> www.meteorites.com.au
>
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-- 
Marc D. Fries, Ph.D.
Postdoctoral Research Associate
Carnegie Institution of Washington
Geophysical Laboratory
5251 Broad Branch Rd. NW
Washington, DC 20015
PH:  202 478 7970
FAX: 202 478 8901

Received on Wed 18 Aug 2004 10:09:13 AM PDT