[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: The problem of tektite origin.
Thanks, Darryl. You don't have to convince me about obvious volcanic
structures in layered tektites, but I am still curious the source of that
message--wondered why there was no by-line to it? Was it a list member?
LOUIS VARRICCHIO
Environmental Information Specialist &
Producer/Writer, "Our Changing Planet"
(Visit OCP-TV on the Web at: www.umac.org/ocp)
Upper Midwest Aerospace Consortium
Odegard School of Aerospace Sciences
University of North Dakota
Grand Forks, N.D. 58202-9007 U.S.A.
Phone: 701-777-2482
Fax: 701-777-2940
E-mail: varricch@umac.org (in N.D.); morbius@together.net (in Vt.)
"Behind every man alive stand thirty ghosts, for that is the ratio by
which the dead outnumber the living. Since the dawn of time, a hundred
billion human beings have walked the planet Earth." -- Arthur C. Clarke
>>> "Darryl S. Futrell" <futrelds@gte.net> 11/02/99 09:56PM >>>
-----Original Message-----
From: Louis Varricchio <varricch@aero.und.edu>
To: bernd.pauli@lehrer1.rz.uni-karlsruhe.de
<bernd.pauli@lehrer1.rz.uni-karlsruhe.de>;
meteorite-list@meteoritecentral.com <meteorite-list@meteoritecentral.com>
Date: Tuesday, November 02, 1999 8:40 AM
Subject: The problem of tektite origin.
Wherever it came from, it completely ignores the fact that all layered
tektites exhibit (e.t.) megascopic volcanic structures. Many also exhibit
microscopic volcanic structures (including welded breccias, some buried
under subsequent deposits of microtektites, plus welded faults). Since
some
of these microscopic structures require at least ten minutes to form, at
their source of origin (1986, Nature 319, 663-665), there is no way they
could have been ejected over 1,000 km in an impact (a requirement of their
distribution in the Australasian strewnfield). Any discussion of tektite
origin that ignores these established facts is highly misleading, no
matter
who the author.
Darryl Futrell
Hi! Can anyone tell me who the author of this e-mail note is? (That WAS
posted below!) It appeared on our list a few weeks ago. Thanks!--Lou
The problem of tektite origin.
----------
Archives located at:
http://www.meteoritecentral.com/list_best.html
For help, FAQ's and sub. info. visit:
http://www.meteoritecentral.com/mailing_list.html
----------