[meteorite-list] "Earthite"

From: mark ford <markf_at_meteoritecentral.com>
Date: Thu Apr 22 10:28:35 2004
Message-ID: <6CE3EEEFE92F4B4085B0E086B2941B310143AB_at_s-southern01.s-southern.com>

Zelmir,

Indeed!, I was being ironic when I said Earthites would look like =
Tektites. I think it is widely accepted that Tektites are Terrestrial! =
(wait for the barrage of posts :) The fact that fused silica is found =
around impact craters ought to be a blimming clue !!

But also, surley there ought to be some intermediate meteorites =
somewhere between Tektites and normal terrestrial rock ? (it would have =
to have been big enough with the right velocity to make it back alive to =
earth though..

Mark Ford





-----Original Message-----
From: Zelimir Gabelica [mailto:Z.Gabelica_at_uha.fr]=20
Sent: 24 October 2003 09:29
To: meteorite-list_at_meteoritecentral.com
Subject: [meteorite-list] "Earthite"

Mark,

If your "earthite meteorite" would look like "a tektite or silica glass"
then the tektites ARE "Earthites" !?

Shows my ignorance (although I well know the different theories about =
the
origin of tektites) but glad if my kidding provokes some debate among =
experts.
That is way is this list for. In other words, a stupid (or provocative)
proposal is sometimes needed to get a keen answer.

Cheers,

Zelimir

At 09:01 24/10/03 +0100, you wrote:
>
>
>More to the point where are all the earth meteorites? We should be able
>to recognize them, (one would hope!), I guess as most of the earths
>immediate surface is soil, or sedimentary rock(s), an earthite =
meteorite
>would be pretty strange do date no true 'sedimentary' meteorites have
>been found?, I guess it would probably look like a tektite I.e silica
>glass... or would they be just be highly shocked ordinary terrestrial
>rocks but with a fusion crust?
>
>
>Mark Ford

******************************************************
Prof. Zelimir Gabelica
Groupe S=E9curit=E9 et Ecologie Chimiques (GSEC) - ENSCMu
3, rue A. Werner
F-68093 MULHOUSE Cedex, FRANCE
Tel: +33 (0)3 89 33 68 94
FAX: +33 (0)3 89 33 68 15
e-Mail: Z.Gabelica_at_uha.fr
******************************************************



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Received on Fri 24 Oct 2003 05:29:56 AM PDT