Greg,
I'd like to hear more about this find. The MetBull entry says that
36 stones were found. Was there a meteorite-rich layer found in a
rock outcrop? Why didn't this get reported? If it ever got
transported in a stream, I'm surprised 36 stones were found in one
place. Can you tell us the rest of the story?
I have no problem with the term "fossil meteorite". There are many
similar uses of the term "fossil" in the earth sciences where it is
not referring to former life. However, I would think the term should
be reserved for cases of meteorites actually found in a rock or very
old sediments. Lots of meteorite finds are discovered below the
surface in soil or recent sediments (like Brenham!), or in stream
beds, but nobody calls them fossil meteorites. Others have clearly
been below the surface at one time (like every Antarctic meteorite),
but nobody calls them fossil meteorites either.
So let's hear the whole story!
Jeff
At 11:47 AM 9/7/2006, Greg Hupe wrote:
Dear Jeff and other NWA 2828 EL3 enthusiasts,
paleo-meteorite or "fossil" meteorite? That is the question...
In a short conversation with one of the lead scientists who have and
are studying NWA 2828 and the other recent enstatite meteorites,
they referred to 2828 as a paleo-meteorite instead of "fossil"
meteorite so people would not think they referred to ancient life
being found in it. The term "fossil" meteorite has been used to
describe several ancient meteorites that were found in rocks or
sediments; a 480 million year old quarried Swedish limestone, a
meteorite found in a drillcore through the impact melt sheet of the
145 million year old Morokweng Crater, to name a couple. The word
fossil in geology has the strong connotation as evidence of life but
literally means "dug up". The prefix paleo- means ancient, so a
paleo-meteorite would be an ancient meteorite. That term does not
necessarily mean that it was excavated nor does it say how old it
is, but sedimentary processes on earth tend to bury objects on the
surface after tens to hundreds of thousands of years. It definitely
was transported and abraded by water flow, then buried and cemented
into a terrestrial conglomerate and then dug up. In short, the best
way to describe NWA 2828 is either "fossil" meteorite or
paleo-meteorite but has nothing to do with ancient life. Terrestrial
age dating is currently being performed and a new abstract has been submitted.
I hope this answers some of the questions this "new" and exciting
meteorite has brought up.
Best regards,
Greg
P.S. I loaded several more slices of NWA 2828 if anyone wants to have a look.
====================
Greg Hupe
The Hupe Collection
NaturesVault (eBay)
[EMAIL PROTECTED]
IMCA 3163
====================
----- Original Message ----- From: "Jeff Grossman" <[EMAIL PROTECTED]>
To: <[email protected]>
Sent: Thursday, September 07, 2006 6:33 AM
Subject: Re: [meteorite-list] AD - New Rare EL3 Paleo-Meteorite - NWA 2828
What the heck is a "paleometeorite", how is it different from a
fossil meteorite, and why is NWA 2828 called this?
jeff
At 01:33 PM 9/5/2006, Greg Hupe wrote:
Dear List Members,
I am pleased to announce a new and very rare EL3 Paleo-Meteorite.
It is NWA 2828 and was originally thought to be an aubrite but
after additional material was cut and analyzed at the University
of Washington and NAU, a few radial pyroxene chondrules were
discovered. EL3's are even rarer than aubrites so the
re-classification turned out to a pleasant surprise. What is
interesting about NWA 2828 is the very low count of chondrules
throughout the individual stones, less than 1%! It has taken
nearly a year of hard work by myself and the scientists to get
this properly classified so if you are interested, purchase your
EL3 material from the official source for NWA 2828 where you know
you will get a great deal and the right meteorite.
I have loaded 36 slices, end cuts and individuals on eBay under my
seller name, NaturesVault. Here are the direct links to these very
low introductory-priced specimens:
NWA 2828 EL3 Meteorite Specimens:
Slices
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&ih=008&item=180025470628&rd=1&sspagename=STRK%3AMESE%3AIT&rd=1
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End Cuts
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&ih=008&item=180025473352&rd=1&sspagename=STRK%3AMESE%3AIT&rd=1
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&ih=008&item=180025473778&rd=1&sspagename=STRK%3AMESE%3AIT&rd=1
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Individuals
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&ih=008&item=180025476678&rd=1&sspagename=STRK%3AMESE%3AIT&rd=1
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In addition to these great deals, I have a number of excellent
auctions ending tomorrow and Thursday. Be sure to check then out
as many are still at just 99 cents.
Best regards and Thank You for looking and/or bidding, I appreciate it!
Greg
====================
Greg Hupe
The Hupe Collection
NaturesVault (eBay)
[EMAIL PROTECTED]
IMCA 3163
====================
______________________________________________
Meteorite-list mailing list
[email protected]
http://six.pairlist.net/mailman/listinfo/meteorite-list
Dr. Jeffrey N. Grossman phone: (703) 648-6184
US Geological Survey fax: (703) 648-6383
954 National Center
Reston, VA 20192, USA
______________________________________________
Meteorite-list mailing list
[email protected]
http://six.pairlist.net/mailman/listinfo/meteorite-list
______________________________________________
Meteorite-list mailing list
[email protected]
http://six.pairlist.net/mailman/listinfo/meteorite-list
Dr. Jeffrey N. Grossman phone: (703) 648-6184
US Geological Survey fax: (703) 648-6383
954 National Center
Reston, VA 20192, USA
______________________________________________
Meteorite-list mailing list
[email protected]
http://six.pairlist.net/mailman/listinfo/meteorite-list
