[meteorite-list] First meteorites -- Glaciers

From: Mark Langenfeld <mlangen_at_meteoritecentral.com>
Date: Thu Feb 17 11:53:03 2005
Message-ID: <200502171653.j1HGr0E2073854_at_mail1.mx.voyager.net>

I have often wondered whether the enormous relict moraines from the last
glacial advances might not contain concentrations of meteorites which
fell on those vast ice fields. Such morainal debris has repeatedly
yielded up both gold and diamonds transported some distance from the
deposits from which those mineral were scoured. Why not meteorites
(although by a somewhat different transport mechanism)?

I wondered enough about that to actually scout some of the major
terminal moraines in the upper midwest (U.S.). Those efforts, however,
were largely confounded by the enormous amount of magnetite and
magnetite-bearing rocks brought down from the iron fields of the
Canadian shield. The jury is still out, I think, on the ultimate
question. But anyone searching those deposits for the answer will have
to be both extraordinarily resolute and not a little lucky.

Mark
Madison, WI


> In fact there are some hints, that the irons from Morasko were transported
> and misplaced during the last glacial period.
> Perhaps Mr.Bartoschewitz can enlighten us more about this issue?
>
> The glaciers in the Alpes are not so mighty than the ice shield of
> Antarctica and there aren't such mechanisms, which transport and
accumulate
> the meteorites over the time, as it's happening in the blue ice fields,
> but why not a try, the glaciers are shrinking and melting dramatically
> during the last few decades,
> perhaps in summer I'll take a look on the foot of some, to see, what they
> give free now.
> Another ice mummy like the Oetzi would be a nice collateral find.
>
> Buckleboo!
> Martin
Received on Thu 17 Feb 2005 11:53:00 AM PST