|
Jeannie and list;
It's a nice idea, but in cases like the australasian fall,
we're talking thousands to millions of tonnes of tektites. This poses big
enough questions about the (undiscovered) source impact site without
speculating that the tektites represent ablated fractions of an incomprehensibly
bigger bolide which we also haven't found!
As for the new Dunham Street, Park Forest micro-Tektoids, I
don't have a clue. Sorry.
Norm Lehrman
----- Original Message -----
Sent: Wednesday, April 02, 2003 8:29
PM
Subject: [meteorite-list] Speaking of
tektites...
Has anyone ever speculated about the fate of silicate
inclusions/graphite nodules/etc. near the surface of iron meteorites, and
ablate as they enter the atmosphere? I seem to remember long ago hearing
a theory that this was one explanation of the origin of tektites.
Ring a bell with anyone? Thoughts?
Regards,
Jeannie Devon
Sent: Wednesday, April 02, 2003 5:41
PM
Subject: [meteorite-list]
Tektites
Adam, List,
It would stand to reason that if
these are in fact a part of the fall, they will be magnetic, is this the
case? If so, I would propose that they are remnants of the formation of the
crust, that were caught up in the stones fall, following it to its
destination, perhaps in an 'eddy' area behind the stone.
As far as
the shingle thing goes, I have climbed upon the roof and examined the
material, no tektites here! (but there is some cool stuff!) Of course that
does not discount that theory completely.
They do look like miniatures of
my tektite collection. Discovery is not impossible!
Always
Optimistic;-)
Larry
|
