[meteorite-list] Meteorite with holes?!?

From: Jeff Kuyken <jeff_at_meteoritecentral.com>
Date: Wed Aug 18 07:51:15 2004
Message-ID: <001801c48519$ad944af0$db348690_at_mandin4f89ypwu>

Hey Graham,

That's a really good point which I also considered too however the stone is
no less solid than most other ordinary chondrites out there. The holes are
also too varied in size and often of an irregular nature to be the result of
dislodged chondrules. Quite a few are also more of an oval shape too.
Apologies as that's probably a little hard to see in the photos. If they are
vesicles, I don't know how they could have formed. Maybe the stone was part
of a larger impact melt?

Thanks,

Jeff Kuyken
I.M.C.A. #3085
www.meteorites.com.au
  ----- Original Message -----
  From: Graham Christensen
  To: Meteorite List
  Sent: Wednesday, August 18, 2004 9:10 PM
  Subject: Re: [meteorite-list] Meteorite with holes?!?


  It looks to me like the holes are just where chondrules have fallen out of
  the matrix. From what I understand, vesicles form by gas being "boiled
out"
  of liquid rock. That's why they've only been found in a eucrite, because
  it's an igneous rock. It's wierd that that is the only one that looks like
  that though. Perhaps a loose matrix or something?

  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  Graham Christensen
  voltage_at_telus.net
  http://www.geocities.com/aerolitehunter
  msn messenger: majorvoltage_at_hotmail.com


  ----- Original Message -----
  From: "Jeff Kuyken" <jeff_at_meteoritesaustralia.com>
  To: "Meteorite List" <meteorite-list_at_meteoritecentral.com>
  Sent: Wednesday, August 18, 2004 5:03 AM
  Subject: [meteorite-list] Meteorite with holes?!?


> 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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> Meteorite-list mailing list
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Received on Wed 18 Aug 2004 07:51:19 AM PDT