[meteorite-list] searching for the correct terminology
Mexicodoug
mexicodoug at aim.com
Fri Sep 11 14:14:40 EDT 2009
Hi Mike Darren, Svend, Bernd, List,
Great question and answers. Still seems a little strong of a term for a
flaky Tatahouine, do you think?
What about a term encompassing the emotion of finding a completely
ripped meteorite?
"Oh! Shucks!",
Doug
PS ... denuded matrix would sound perfect to me, or stripped meteorite
....
(the universe is our oyster)
-----Original Message-----
From: bernd.pauli at paulinet.de
To: Meteorite-list at meteoritecentral.com
Sent: Fri, Sep 11, 2009 12:22 pm
Subject: Re: [meteorite-list] searching for the correct terminology
Mike in CO writes:
"You will probably think I am a bit off the latch with this question
but here goes anyway... In the world of meteorite terminology, is
there a term or word which describes the loss of fusion crust (by
forces of nature) from stony meteorites. 'Spalling' possibly? The
loss of crust, part or all, seems to be a rather common occurrence
especially for some of the more friable stonys. With the crust gone,
the stone is 'denuded'?"
Hi Mike and List, here are some examples:
ALHA77294 (H5):
Polygonally fractured, dull, brownish black fusion crust, approximately
1 mm
thick,
covers all surfaces of this meteorite (~13.5 x 9.0 x 6.0 cm), with the
exception
of the
edges, which appear to have been s p a l l e d.
ALHA78040 (AEUC):
The crust has been removed from the edges by s p a l l a t i o n and has
been preferentially weathered away on the surfaces in small circular
areas.
ALHA78132 (AEUC):
The crust has been s p a l l e d or chipped in some areas ...
ALHA79022 (L3.7-4):
The areas devoid of fusion crust appear to have been s p a l l e d
off or preferentially plucked off because they occur along ridges.
Bagdad (IIIAB):
Most of the fusion crust has s p a l l e d off due to terrestrial
corrosion
(Buchwald)...
Best wishes,
Bernd
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