Hi Bob,
Are they really shock veins or simply some sort of weathering deposit in
small cracks as they disintegrate into extra-terrestrial soil?
I don't have any idea how this would work exactly or the substances
involved, but I've always thougth them to be a by-product of weathering
rather than shock.
Regards to all,
Phil
----- Original Message -----
From: <[EMAIL PROTECTED]>
To: <[email protected]>
Sent: Thursday, June 08, 2006 9:15 AM
Subject: RE: AW: [meteorite-list] Dhofar vs. NWA meteorites
Hi Martin,
Thanks for your observations on Dhofar vs. NWA. What you wrote makes sense.
However I still wonder why many of the Dhofar chondrites have so many fine
shock
veins compared to the NWAs. Any thoughts?
Bob
Original Message:
-----------------
From: Martin Altmann [EMAIL PROTECTED]
Date: Thu, 8 Jun 2006 14:36:29 +0200
To: [email protected], [EMAIL PROTECTED]
Subject: AW: [meteorite-list] Dhofar vs. NWA meteorites
Hi Bob,
So we have two reasons:
The more harsh weathering conditions in Oman
and a economical one, that from the NWA one sees only the tip of the
iceberg's weathering scale, cause the more rotten stuff doesn't sell.
Buckleboo!
Martin
-
Hi all,
I've seen a good number of Dhofar and NWA common chondrites and
I've noticed that there are many among the Dhofars which exhibit highly
weathered interiors laced with rich, thread-like shock veins. These
veins seem to be far less common in NWA chondrites and I wonder
why. Can anyone shed light on this little mystery (for me)? Thank you!
Bob
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