[meteorite-list] Tagish Lake and Kaidun

From: meteorites_at_space.com <meteorites_at_meteoritecentral.com>
Date: Thu Apr 22 09:54:06 2004
Message-ID: <20020218170423.3775.c000-h006.c000.wm_at_mail.space.com.criticalpath.net>

There is another very strange carbonaceous meteorite
that fell at "Revelstoke" (sp) Canada in the winter of
1965 (?).=20=20

As I recall, after a very bright and large fireball a
team was sent to explore after the scene, covered with
snow was checked via aircraft. Snow drifts were
covered with what appeared from the air to be black
dust.

Field investigations, as I recall, recovered about 1
gram of carbonaceous meteorite dust (C1 ?).

So, it would seem that there are other instances of
this type of material falling to earth.

In this case had the fall not happened when the land
was covered in snow nothing would have been recovered.

And I imagine that for Tagish Lake the result would not
have been nearly as good had it happened say in the
summer time.

Regards,
Steve Schoner AMS




On Thu, 14 February 2002, Eric Twelker wrote

>=20
> Hello all
>=20
> Just a reminder that we still have small pieces
(<70 mg) of Tagish Lake
> available.=20=20
>=20
> Regards,
>=20
> Eric Twelker
> twelker_at_alaska.net
> http://www.meteoritemarket.com
>=20
> > From: Bernd Pauli HD
<bernd.pauli_at_lehrer1.rz.uni-karlsruhe.de>
> > Date: Wed, 13 Feb 2002 20:25:02 +0100
> > To: meteorite-list
<meteorite-list_at_meteoritecentral.com>
> > Subject: [meteorite-list] Tagish Lake and Kaidun
> >=20
> > ZOLENSKY M. et al. (2001) Kaidun: A smorgasbord
> > of new asteroid samples (MAPS 36-9, 2001, A233):
> >=20
> > One of the most intriguing results of research on
Tagish Lake is that
> > it may be a piece from a type D asteroid =96 this
type of asteroid is
> > supposed to be extremely rich in carbon. How does
that finding relate
> > to Kaidun? Kaidun is a clastic carbonaceous
chondrite and the following
> > components are present:
> >=20
> > - every type of carbonaceous chondrite
> > - enstatite chondrites
> > - shock melt clasts
> > - many numerous hitherto unseen materials - plus:
...
> > - a carbonaceous lithology with the same oxygen
isotope
> > composition as Tagish Lake
> >=20
> > So there was Tagish Lake-like material in our
collections
> > 20 years before Tagish Lake fell!
> >=20
> > In order to have accumulated clasts of many
unrelated asteroids, the
> > Kaidun parent body must have been large and the
authors speculate
> > that Kaidun may have come from ... Ceres.
> >=20
> >=20
> > Cheers,
> >=20
> > Bernd
> >=20
> > ______________________________________________
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> > Meteorite-list_at_meteoritecentral.com
> >
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>=20
>=20
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=0D
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Received on Mon 18 Feb 2002 08:04:20 PM PST