So why do teks survive that long, is it due to meteorites being mainly iron
and they are glass??
Stuart McDaniel
Lawndale, NC
Secr.,
Cleve. Co. Astronomical Society
----- Original Message -----
From: "Jason Utas" <meteorite...@gmail.com>
To: "Meteorite-list" <meteorite-list@meteoritecentral.com>
Sent: Monday, August 09, 2010 7:31 PM
Subject: Re: [meteorite-list] Darryl Futrell on flanged button
prices(Was:Spectacular Tektite on eBay)
Hello Stuart,
Well, we don't find meteorites accosicated with craters very often,
for a number of reasons. First and foremost is that most of the
craters found in the past have been pretty old - on the order of
millions of years.
Wolf Creek is one of the older craters that we know of where meteoric
material can be found, and that's pushing it at about 300,000 years.
Hell, just look at the condition of most Wolf Creek "meteorites" --
they're shale balls through and through.
Australasian tektites, on the other hand, are "750,000-950,000" years old.
http://www.sil.si.edu/smithsoniancontributions/EarthSciences/pdf_hi/sces-0017.pdf
Very few meteorites with terrestrial ages close to that have been
found - we have some Antarctic meteorites that have spent on the order
of a few million years on earth, and a few Omani meteorites (planetary
meteorites from Oman seem to be capable of having particularly high
terrestrial ages for some reason) with terrestrial ages in the
millions - this one's the kicker:
http://meteorites.wustl.edu/lunar/stones/dhofar0025.htm
-Don't know how that managed to survive, but it's an anomaly.
So, it seems unlikely that any meteorites would survive the ~700,000+
years that they would have had to in order to be found today.
But that's only half of the problem.
You've got to find the crater first...
And the real problem in this case is that we haven't found a good
source-crater candidate for the australaisan tektites yet.
Another link to a different page on the same site give a decent
summary of what has been suggested so far:
http://www.tektites.co.uk/source-crater.html
And a few others...
http://adsabs.harvard.edu/full/1992Metic..27..154S
http://geology.geoscienceworld.org/cgi/reprint/7/7/351.pdf
http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6V66-4DD8PNK-6&_user=10&_coverDate=10%2F01%2F2004&_rdoc=1&_fmt=high&_orig=search&_sort=d&_docanchor=&view=c&_rerunOrigin=scholar.google&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&md5=3499b5c52e10813333844165e1fd0705
So...somewhere in Cambodia, or off the coast of Vietnam? No one knows...
Find that, and you can start looking for meteorites, though...
Regards,
Jason
On Mon, Aug 9, 2010 at 3:54 PM, Stuart McDaniel
<actionshoot...@carolina.rr.com> wrote:
OK, I read Aubrey's site and it explains pretty well. But if there was a
meteorite that big that hit the earth, shouldn't there be pieces to be
found along with the tektites??
Stuart McDaniel
Lawndale, NC
Secr.,
Cleve. Co. Astronomical Society
----- Original Message ----- From: "Stuart McDaniel"
<actionshoot...@carolina.rr.com>
To: <p...@meteorite.com>; "Richard Kowalski" <damoc...@yahoo.com>
Cc: <Meteorite-list@meteoritecentral.com>
Sent: Monday, August 09, 2010 6:44 PM
Subject: Re: [meteorite-list] Darryl Futrell on flanged button prices
(Was:Spectacular Tektite on eBay)
I know this will sound like a stupid question but how are these formed? I
thought teks were ejecta type material.
Stuart McDaniel
Lawndale, NC
Secr.,
Cleve. Co. Astronomical Society
----- Original Message ----- From: "Paul Harris" <p...@meteorite.com>
To: "Richard Kowalski" <damoc...@yahoo.com>
Cc: <Meteorite-list@meteoritecentral.com>
Sent: Monday, August 09, 2010 6:02 PM
Subject: Re: [meteorite-list] Darryl Futrell on flanged button prices
(Was: Spectacular Tektite on eBay)
Dear Richard and List,
Here are some Australite Flange Buttons on Meteorite-Times.
http://www.meteorite-times.com/Back_Links/2009/march/Tektite_of_Month.htm
http://www.meteorite-times.com/Back_Links/2007/June/Tektite_of_Month.htm
http://www.meteorite-times.com/Back_Links/2007/May/Tektite_of_Month.htm
http://www.meteorite-times.com/Back_Links/2006/December/Tektite_of_Month.htm
http://www.meteorite-times.com/Back_Links/2005/February/Tektite_of_Month.htm
http://www.meteorite-times.com/Back_Links/2004/October/Tektite_of_Month.htm
http://www.meteorite-times.com/Back_Links/2003/September/Tektite_of_Month.htm
http://www.meteorite-times.com/Back_Links/2003/April/Tektite_of_Month.htm
http://www.meteorite-times.com/Back_Links/2002/November/Tektite_of_Month.htm
Just gotta love buttons!
Paul
On 8/9/2010 2:22 PM, Richard Kowalski wrote:
Hey Norm,
I haven't looked at many tektites, but what caught my eye on this one
was the deep swirl on the bottom of this one. Obviously spinning as it
re-entered. I can't remember seeing this feature before.
Just curious how common that is?
Thanks
--
Richard Kowalski
Full Moon Photography
IMCA #1081
--- On Mon, 8/9/10, Norm Lehrman<nlehr...@nvbell.net> wrote:
From: Norm Lehrman<nlehr...@nvbell.net>
Subject: Re: [meteorite-list] Darryl Futrell on flanged button prices
(Was: Spectacular Tektite on eBay)
To: Meteorite-list@meteoritecentral.com, bernd.pa...@paulinet.de
Date: Monday, August 9, 2010, 11:02 AM
Sorry, I was typing in the dark and
hit a button that sent the message before I was done.
The one on Ebay is significantly over-priced. For
$1800, I think I can still source a flawless specimen. With the rim
chips, I would not pay $1000, but times are
certainly changing. They haven't made any more of
these for a very long time and the supply is getting very
lean.
I think I told the story on our website, but I traded my
youngest daughter's hand in marriage for one fine flanged
button. We were living in West Aus and spent lots of
time out searching. On the fateful day, Derek (our
great current son in law) came out with us, his first
tektite hunt. Cookie and I had over 1000 finds each to
our credit (australites that is, not a single fully flanged
button) and had a pretty good eye. We know how to tell
them from kangaroo droppings (bite them!).
We were walking a dry stream channel southeast of
Kalgoorlie and finding nothing. My daughter is
American Indian, and I had been kidding Derek that if he
wanted to marry her he was going to have to come up with a
fine bunch of horses and blankets for the father of the
bride. It was hot and dry and swarming with flies and
kangaroo droppings were about as exciting as it got. Then Derek
shouted
"hey norm, about those horses and sheep
and stuff---would this do???" He was holding up a
perfect, flawless flanged button. I accepted on the
spot. He has my daughter and a fine family, I have a
fine flanged Australite and some great grandkids. What's more, we're
both happy with the deal.
People sometimes ask what my daughter thinks of being sold
for a flanged button, and I assure them that she understands
their rarity and is honored to command such a premium!
Three years has passed since we moved to Africa and
suspended the Tektite Source. Cookie has now moved
back to the USA and is getting the inventory unpacked; I'm
still wandering Africa at least until the end of the
calendar year. But within a few months we should have
things up and running again. Thanks for waiting. We have a long list
of clients to contact when she finds
everything. If you have items of interest from the
website, let us know and we'll get to you when we can---
I need to visit our own website, but unfortunately I think
we are completely out of good flanged buttons (that are for
sale--there's for sure on that isn't!)
Cheers,
Norm
http://tektitesource.com
--- On Mon, 8/9/10, bernd.pa...@paulinet.de
<bernd.pa...@paulinet.de>
wrote:
From: bernd.pa...@paulinet.de
<bernd.pa...@paulinet.de>
Subject: [meteorite-list] Darryl Futrell on flanged
button prices (Was: Spectacular Tektite on eBay)
To: Meteorite-list@meteoritecentral.com
Date: Monday, August 9, 2010, 9:05 AM
Hello Brian and List,
Brian wrote: "On this beautiful tektite, I stand
corrected."
On December 3rd, 2000, I asked our late Darryl Futrell
(+
Aug 13, 2001) what
a reasonable price for a perfect Australian button
would be
and the next day he
responded like this:
"A perfect flanged button goes for about $2000 or
more.
Maybe a sandblasted one might turn up for $1000 or
so."
Best wishes from someone
who wishes he had one too
Bernd
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