[meteorite-list] AD - New Rare EL3 Paleo-Meteorite - NWA 2828

From: Jeff Grossman <jgrossman_at_meteoritecentral.com>
Date: Thu Sep 7 12:44:51 2006
Message-ID: <>


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!


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,
>P.S. I loaded several more slices of NWA 2828 if anyone wants to have a look.
>Greg Hupe
>The Hupe Collection
>NaturesVault (eBay)
>IMCA 3163
>----- Original Message ----- From: "Jeff Grossman" <jgrossman_at_usgs.gov>
>To: <meteorite-list_at_meteoritecentral.com>
>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?
>>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:
>>>End Cuts
>>>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 Hupe
>>>The Hupe Collection
>>>NaturesVault (eBay)
>>>IMCA 3163
>>>Meteorite-list mailing 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
>Meteorite-list mailing list

Dr. Jeffrey N. Grossman phone: (703) 648-6184
US Geological Survey fax: (703) 648-6383
954 National Center
Reston, VA 20192, USA
Received on Thu 07 Sep 2006 12:44:46 PM PDT

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