Re: [meteorite-list] Classification -Nickel test

[E. L. Jones]

I understand that the popular "ahem-bay nickel test kit" returns a false 
positive in the presence of iron.  Could someone else validate this?

Elton

 

 

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AW: WG: [meteorite-list] Classification question

[Jörn Koblitz]

Correct. It simply mean that no finer classification has been done. It's just a bit 
more work to get the subtype classification. A 3.0 is actually the most primitive, 
most unequilibrated and rarest type of unequilibrated ordinary chondrite. 

BTW: A petrologic type 2 has never been assigned to any ordinary chondrite. Only to 
carbonaceous chondrites.

Jörn


> -Ursprüngliche Nachricht-
> Von: Nicholas Gessler [mailto:[EMAIL PROTECTED]
> Gesendet: Donnerstag, 13. Mai 2004 02:30
> An: Jörn Koblitz; [EMAIL PROTECTED]
> Betreff: Re: WG: [meteorite-list] Classification question
> 
> 
> While we're at it, what's the difference between a "3" and a "3.0?"
> Does a "3" imply that no one made any finer discrimination?
> Or does a "3" imply that it's really a "3.0?"
> Cheers,
> Nick
> 
> At 08:23 AM 4/14/2004, Jörn Koblitz wrote:
> >Dear Pierre,
> >
> > > I've got a (stupid ?) question about the classification of
> > > the chondrites.
> > >
> > > What is the difference between this kind of classification :
> > > For example L3.6, L3-6 or H5/6
> > >
> > > Is the sign "-" the same as "/" or "." in this case  ?
> >
> >Regarding the use of hyphens and slashes, see the postings 
> to the list of 
> >March 19 to 23 (pasted below).
> >
> >The use of "." in the classification (e.g. L3.6) is used in 
> case that a 
> >petrologic SUBtype has been obtained, either by measuring 
> the induced 
> >thermoluminescence (TL) or by calculation of the percentage 
> mean deviation 
> >(PMD) of the fayalite and ferrosilite contents of olivine 
> and pyroxene, 
> >respectively, measured by microprobe (EPMA). The subtype is 
> just a finer 
> >subdivision and is only used for unequilibrated (i.e. type 
> 3) chondrites. 
> >It is a scale for the amount of thermal metamorphism a chondrite has 
> >experiences since its accretion. In this respect, a 3.0 
> indicate the least 
> >metamorphosed (or most primitive / less heated) type 3 
> chondrite. On the 
> >other hand, a type 3.9 chondrite is almost chemically 
> equilibrated like 
> >type 4 and higher, as it has experienced considerable 
> heating (e.g. by 
> >impact shock) during its lifetime on the parent-body 
> (planetesimal or 
> >asteroid).
> >
> >Hope this answers your question.
> >
> >Best regards,
> >
> >Joern
> >
> >_
> __
> >Joern Koblitz
> >MetBase Editor
> >The MetBase Library of Meteoritics and Planetary Sciences
> >Benquestrasse 27
> >D-28209 Bremen, Germany
> >phone: +49 421 24 100 24
> >fax: +49 421 24 100 99
> >email: [EMAIL PROTECTED]
> >_
> __
> >
> >
> >
> >
> >
> >
> >
> >
> >Hello John, David and Bernd,
> >
> >Sorry for my late reply - I'm not online on weekends.
> >
> >You are right, it's a messy situation with the use of 
> slashes "/" and 
> >hyphens "-" and as Jeff outlined long time ago, it actually 
> depends on the 
> >research group who does the classification. With MetBase, I 
> stick to the 
> >presently preferred rules that "/" indicates a transitional 
> type and "-" a 
> >breccia. However, as complicated as it could be, imagine that a 
> >transitional group like H/L contains clasts of different 
> petrologic types, 
> >e.g. 4 and 6: should it then be designated H/L4-6 or 
> (H/L)4-6 or H4-6/L4-6?
> >Regarding the transitional petrologic type designations, 
> e.g. H5/6: beware 
> >that there is always a personal bias by the person who did the 
> >classifications: one researcher will classify an H chondrite 
> H5, another 
> >researcher the same chondrite H6 and a third person would 
> give it H5/6: 
> >there is always an uncertainty of +/- 0.5 for equilibrated ordinary 
> >chondrites. That's why some researchers think that it is always 
> >appropriate to assign straight numbers and to prevent transitional 
> >numbers, which is rather a sign of shakiness. Regarding the use of 
> >parentheses, e.g. "LL/(L)3" or "LL(L)3": this problem is 
> rather restricted 
> >to very unequilibrated chondrites as Jeff pointed out. Since highly 
> >unequilibrated chondrites show large variations in mineral 
> chemistry (e.g. 
> >wide ranges of olivine, pyroxene or metal compositions), one 
> has to do a 
> >large number of microprobe and (oxygen) isotopic 
> measurements to gain 
> >certainty on the classification. This is very time-consuming and 
> >expensive. Further, many hot-desert finds are higly 
> weathered which makes 
> >it difficult to classify them based on chemical compositions 
> (terrestrial 
> >contamination).
> >
> >David: Regarding the differences in designations beween Met. 
> Bulletin and 
> >MetBase, I have to check the literature sources of the 
> MetBase information 
> >and let you know lateron if I can clearify.
> >
> >Joern
> >
> > > -Ursprüngliche Nachricht-
> > > Von: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
> > > Gesendet: Freitag, 19. März 2004 22:27
> > > An: [EMAIL PROTECTED]
>

Re: [meteorite-list] Here's the note I got with PayPal ! OK now WHAT!!

[Dave Andrews]

I'm lost.  Anyone else know what's going on with these two messages to 
the list???

Dave

Dennis Wells wrote:

hello i will most definitly, leave great feedback for you once the 
item arrives.i would like it to arive as fast as possible. so as good 
as the 5 dollars can get it here.thank you very much for sending me 
another piece... this is my first meteorite... and i am VERY excited.i 
hope that we can do more buiss in the future. thank you again friend.. 
scott and kelly mitchell!

 
 

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[meteorite-list] Here's the note I got with PayPal ! OK now WHAT!!

[Dennis Wells]

  
  

  


  hello i will most definitly, leave great 
feedback for you once the item arrives.i would like it to arive as 
fast as possible. so as good as the 5 dollars can get it here.thank 
you very much for sending me another piece... this is my first 
meteorite... and i am VERY excited.i hope that we can do more buiss 
in the future. thank you again friend.. scott and kelly mitchell! 

  


  
  

 
 
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[meteorite-list] Fw: Emailing: www.geocaching

[Dennis Wells]

Whoever this is 
and IT. are not in the real world!!! and I sent them a 72gram franconia 
area find to them today and a small slice of one found within 200 feet of 
it. That's a real piece of work .
Dennis, the real deal and no stories
- Original Message - 
From: Scott and 
Kelly 
To: Dennis Wells 
Sent: Wednesday, May 12, 2004 6:46 PM
Subject: Re: Emailing: www.geocaching

ahh great nope this will not be my last.. i am 
about to take up meteor hunting, as i have found out that my province is about 
the only place where a meteorite has not been found... im on a mission.. haha. 
see y'all god bless! scott 27  kelly 27.

  - Original Message - 
  From: 
  Dennis 
  Wells 
  To: Scott and Kelly 
  Sent: Wednesday, May 12, 2004 10:40 
  PM
  Subject: Emailing: www.geocaching
  
  This link will help you understand what L/L it is 
  about and how to find your way around the world and back home agian 
  (IE) where the metorite was found in the world and anyone can go there and 
  find the same place or very close to where it was with L/L and a GPS 
  .
  That what's what is site is about.((( And by the 
  way your falling star is on it's way))) with a little friend to show you what 
  is inside of yours. I think you said this is your 1st one and hopefully 
  not your last.
   
  Have a good one from Arizona, down south of the 
  border.
  Dennis (51) & Cathy (45) Wells
   
   
  Your files are attached and ready to send with this message. 
   
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[meteorite-list] Re: Franconia meteorites

[Robert Verish]

 Original Message -
[meteorite-list] Franconia meteorites
Matson, Robert ROBERT.D.MATSON at saic.com 
Tue May 11 19:17:26 EDT 2004 

Hi Ruben and List,

Is any researcher mapping out Franconia strewn field
find locations
and masses?  If so, I'd be happy to supply him/her
with the data
for my 325-gram find from last month.  --Rob


Hi Rob, Rubin, and List,

I would like to have the name of that researcher, as
well, if there is one.  

I compiled a table of Franconia area finds (those
found prior to Feb 2, 2004) and this table was
supposed to be published in the latest issue of
¡§Meteorite¡¨ magazine along with my article on
Franconia, but there wasn¡¦t enough room for it, so it
was left out. If we can¡¦t find a researcher
interested in our data, I will have to find some other
way to get this table published.  

Rob, have you asked Jack Schrader if he knows of any
¡§interested¡¨ researchers?  Dr. Schrader made quite a
few Franconia finds and his son, Devin, is in the
department at the Univ. of Arizona, so maybe they
might know of somebody?  If you can¡¦t find a
¡§researcher¡¨, you may want to think about turning
your data in to Rhian Jones.  You have done that with
all of your other finds, in the past, even the ones
that aren¡¦t classified, so no reason to treat this
find any differently.  Maybe some researcher will come
along later and find a use for your data.  I¡¦m sure
it would be much appreciated, then.  Who knows, maybe
after the NomComm makes a decision what to do with all
of these stones, you might even get a provisional name
& number for your find.  
Maybe something like, NorthWest Arizona 095!?  
:-)
ļ Bob V.





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[meteorite-list] Ebay Auction ENDING NOW-HUGE CAMPO UNDER $39 per Kilo!

[John Birdsell]

Hello all. We have an auction ending in under an hour for a gorgeous,
big 28.4 pound, high quality Campo.  You can STEAL this beautiful
meteorite away right now for under $40 per kilo!  If you've been
looking for a nice big Iron, you won't find a higher quality Campo at a
better price.  If you would like to see this meteorite click on the
link below:


http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=3239&item=2243447082&rd=1



We have the highest quality, most stable Campos available, so don't let
this one get away & Thanks for looking!


John & Dawn
Arizona Skies Meteorites



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[meteorite-list] display case pictures

[Steve Arnold, Chicago!!!]

Hello list.Well the new display case is up.I have a couple of pictures up
on my website.They are on my homepage.I will take better pictures later
on, but for now these did the trick.Let me know what you think of it.


   steve arnold, chicago

=
Steve R.Arnold, Chicago, IL, 60120 
I. M. C. A. MEMBER #6728 
Illinois Meteorites 
website url http://stormbringer60120.tripod.com
http://members.ebay.com/aboutme/illinoismeteorites/
 
 










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[meteorite-list] Ad - Martian Auction Started

[Adam Hupe]

Dear List Members,

Just a note to let you know we listed 31 auctions consisting of 14 different
Martian meteorite specimens.  We thought it was appropriate to run 31
separate auctions since there are now 31 different Martian meteorites in
existence.  There has never been an auction where samples representing 66.6%
of all available Mars meteorites has been offered at once.

We have larger specimens of the following if the size we are offering in
these auctions does not suite your needs:

NWA 998
NWA 1195
DHOFAR 019

To see these auctions check out the ebay link below and click on "Go see all
current items for sale by this member".  Scroll to the end of the auction
list and look for material ending on the 19th:
http://members.ebay.com/aboutme/meteoritelab/

For those of you not interesting in Martian meteorites we will be auctioning
off nearly $100,000.00 worth of museum quality complete meteorites with a
special emphasis on larger oriented specimens next week.

Thank you for looking and if you are bidding, good luck.

Adam and Greg Hupe
The Hupe Collection
Team LunarRock
IMCA 2185



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[meteorite-list] Nininger to Perry Letter, Sept. 27, 1952

[MARK BOSTICK]

 (American Meteorite Museum Letterhead) AMERICAN METEORITE MUSUEM OPPOSITE METEOR CRATER ON HIGHWAY 66 POST OFFICE BOX 1171 WINSLOW ARIZONA   September 27, 1952   Dear Stuart: I hope you will get the little iron through the paces you want to put it through and get it back to me so I can try another test on it. I still hope that a group can get together on this thing in December. I suppose you and Mrs. Perry will be out this way again this winter. We may try to find some of the Tucson iron and if we do we will be seeing you during the try. Cordially, (signed) H.H. Nininger HHN: AN P.S. Give the little iron plenty of insurance when you return it. HHN (Mark Note: The follow was added to the letter after it was typed and is written in pencil at the bottom of the page) By the way Ed wrote that he had turned over our list of offerings to you, a list we sent him several weeks ago. We should know what of this list you & he are going to purchase because we want to send what is left of the list to other parties very soon. H.H.N.Please visit, www.MeteoriteArticles.com, a free on-line archive of meteor and meteorite articles.
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[meteorite-list] Nininger to Stuart Letter, Sept. 16, 1952

[MARK BOSTICK]

 (American Meteorite Museum Letterhead) AMERICAN METEORITE MUSUEM OPPOSITE METEOR CRATER ON HIGHWAY 66 POST OFFICE BOX 1171 WINSLOW ARIZONA   September 16, 1952   Dear Stuart: Your letter of September 9 at hand. You need not cut your little specimen of Tambo. I have already sent Ed a sliver of mine. We plan to spend that remains the Perry Fund searching for some Arizona meteorite, especially the other supposed masses of the Tucson iron. If you decide that you want to supply more funds for meteorite hunting in 1952 then I believe we shall undertake to get some better samples of the Tambo Quamado and investigate other South American reports. I have long believed that there are some good opportunities down there. My report on the Arispe finds will appear in the Earth Science Digest in the forthcoming issue. When you and Henderson get together on that little iron that hit the man's hat please take under advisement the matter of having a group session over it and some other vital questions in connection with the A.A.A.S. in St Louis this winter. That little iron surely is a dilly of a puzzle! Sincerly, (signed) H.H. Nininger HHN: ANPlease visit, www.MeteoriteArticles.com, a free on-line archive of meteor and meteorite articles.
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Re: [meteorite-list] New slices: LAMPIAYRIE from Burkina Faso

[Impactika]

In a message dated 5/12/2004 7:52:21 AM Mountain Standard Time, [EMAIL PROTECTED] writes:
Main problem that I have is that my dealer know english like me japaniselanguage :)) so sometimes is hard to know what he want to say. 
 
He probably knows French. Maybe not very well, but better than English (or Japanese).
So, you can ask him to write to you in French, forward the email to me (or the List) and I will translate it for everybody!
I can even tell you how to pronounce LAMPIAYRIE.    :-)
 
 
Anne M. Blackwww. IMPACTIKA.com[EMAIL PROTECTED]IMCA #2356
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[meteorite-list] Ad - NWA 1096 LL3.6 3.5 gram slice

[JPBrockets]

Greetings:
 
I am offering a 3.5 gram slice of NWA 1096 (LL3.6).  $55.00 including shipping for a US address, shipping to be determined for an international address.
 
One stone was found in Eastern Morocco in 2001.  Total known weight is only 120 grams.
 
Please email me for pictures if you are interested.
 
Thanks for your time!
 
Juris Breikss
[EMAIL PROTECTED]
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[meteorite-list] Classification question

[Matson, Robert]

Hi Nick,

> While we're at it, what's the difference between a "3" and a "3.0?"
> Does a "3" imply that no one made any finer discrimination?

That's always been my understanding.

> Or does a "3" imply that it's really a "3.0?"

Definitely not -- particularly given how rare 3.0's are.  --Rob
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Re: WG: [meteorite-list] Classification question

[Nicholas Gessler]

While we're at it, what's the difference between a "3" and a "3.0?"
Does a "3" imply that no one made any finer discrimination?
Or does a "3" imply that it's really a "3.0?"
Cheers,
Nick
At 08:23 AM 4/14/2004, Jörn Koblitz wrote:
Dear Pierre,

> I've got a (stupid ?) question about the classification of
> the chondrites.
>
> What is the difference between this kind of classification :
> For example L3.6, L3-6 or H5/6
>
> Is the sign "-" the same as "/" or "." in this case  ?
Regarding the use of hyphens and slashes, see the postings to the list of 
March 19 to 23 (pasted below).

The use of "." in the classification (e.g. L3.6) is used in case that a 
petrologic SUBtype has been obtained, either by measuring the induced 
thermoluminescence (TL) or by calculation of the percentage mean deviation 
(PMD) of the fayalite and ferrosilite contents of olivine and pyroxene, 
respectively, measured by microprobe (EPMA). The subtype is just a finer 
subdivision and is only used for unequilibrated (i.e. type 3) chondrites. 
It is a scale for the amount of thermal metamorphism a chondrite has 
experiences since its accretion. In this respect, a 3.0 indicate the least 
metamorphosed (or most primitive / less heated) type 3 chondrite. On the 
other hand, a type 3.9 chondrite is almost chemically equilibrated like 
type 4 and higher, as it has experienced considerable heating (e.g. by 
impact shock) during its lifetime on the parent-body (planetesimal or 
asteroid).

Hope this answers your question.

Best regards,

Joern

___
Joern Koblitz
MetBase Editor
The MetBase Library of Meteoritics and Planetary Sciences
Benquestrasse 27
D-28209 Bremen, Germany
phone: +49 421 24 100 24
fax: +49 421 24 100 99
email: [EMAIL PROTECTED]
___






Hello John, David and Bernd,

Sorry for my late reply - I'm not online on weekends.

You are right, it's a messy situation with the use of slashes "/" and 
hyphens "-" and as Jeff outlined long time ago, it actually depends on the 
research group who does the classification. With MetBase, I stick to the 
presently preferred rules that "/" indicates a transitional type and "-" a 
breccia. However, as complicated as it could be, imagine that a 
transitional group like H/L contains clasts of different petrologic types, 
e.g. 4 and 6: should it then be designated H/L4-6 or (H/L)4-6 or H4-6/L4-6?
Regarding the transitional petrologic type designations, e.g. H5/6: beware 
that there is always a personal bias by the person who did the 
classifications: one researcher will classify an H chondrite H5, another 
researcher the same chondrite H6 and a third person would give it H5/6: 
there is always an uncertainty of +/- 0.5 for equilibrated ordinary 
chondrites. That's why some researchers think that it is always 
appropriate to assign straight numbers and to prevent transitional 
numbers, which is rather a sign of shakiness. Regarding the use of 
parentheses, e.g. "LL/(L)3" or "LL(L)3": this problem is rather restricted 
to very unequilibrated chondrites as Jeff pointed out. Since highly 
unequilibrated chondrites show large variations in mineral chemistry (e.g. 
wide ranges of olivine, pyroxene or metal compositions), one has to do a 
large number of microprobe and (oxygen) isotopic measurements to gain 
certainty on the classification. This is very time-consuming and 
expensive. Further, many hot-desert finds are higly weathered which makes 
it difficult to classify them based on chemical compositions (terrestrial 
contamination).

David: Regarding the differences in designations beween Met. Bulletin and 
MetBase, I have to check the literature sources of the MetBase information 
and let you know lateron if I can clearify.

Joern

> -Ursprüngliche Nachricht-
> Von: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
> Gesendet: Freitag, 19. März 2004 22:27
> An: [EMAIL PROTECTED]
> Cc: [EMAIL PROTECTED]; Jörn Koblitz;
> [EMAIL PROTECTED]
> Betreff: Re: [meteorite-list] Hyphens / Slashes
>
>
> Bernd. Dave, Joern and others,
>
> Bernd, thanx for the previously submitted info from Jeff on
> slashes and dashes.
>
> That should certainly clear it up the confusion, right Dave. :)
>
> John
>
> BTW: Joern...in all seriousness I really appreciate you
> responding to this thread.
>
>
> > > For chondrite groups, petrologic types, shock stages, and
> weathering
> > > grades, slashes (e.g., H5/6) indicate transitional
> assignments. Hyphens
> > > in petrologic type assignments for chondrites (e.g.,
> H5-6) indicate the
> > > range of types observed in breccias. Group names such as
> "L(LL)" indicate
> > > uncertain assignments, with the less probable group in
> parentheses.
> >
> > Hello All,
> >
> > I was waiting for Jeff Grossman to chime in here, because
> > on Monday, 07 Sep 1998, Jeff wrote to this to the List (excerpts):
> >
> > Right now we have a literatu

[meteorite-list] Ad - Cool Auctions Ending Shortly

[Adam Hupe]

Dear List,

Just a quick not that we have some real rarities ending tonight. Do not
forget to pick up a piece NWA1288, a somewhat rare H3.9, as there are less
than ten prepared specimens in existence including the main mass, all of
which are ending tonight.

A few other neat items:

Link to giant Wolf Creek at 1/3 price:
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=3239&item=2243040432&;
ssPageName=STRK:MESSE:IT

Link to real cool 'Gator" Sikhote Alin:
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=3239&item=2243037073&;
ssPageName=STRK:MESSE:IT

Link to largest piece of NWA011 in private hands:
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=3239&item=2243049109&;
ssPageName=STRK:MESSE:IT

Link to awesome NWA176 Olivine Iron meteorite:
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=3239&item=2243053945&;
ssPageName=STRK:MESSE:IT


To see all other auctions please check out the ebay link below and click on
"Go see all current items for sale by this member".  Be sure to check out
the four pieces of NWA 1288.
http://members.ebay.com/aboutme/meteoritelab/

Thank you for looking and if you are bidding, good luck.

Adam and Greg Hupe
The Hupe Collection
Team LunarRock
IMCA 2185

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[meteorite-list] Where In The World Is Bob Evans?

[RYAN PAWELSKI]

Good Evening List,

Has anyone spoken to Bob Evans in the last week or two? I have been unable to get 
ahold of him via email.

Thanks in advance.

Ryan
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Re: [meteorite-list] Happy Birthday Bernd & Thanks

[Jose Campos]

Hi Bernd,
Happy birthday! 
José Campos
 
- Original Message - 

  From: 
  meteoriteshow 
  To: Jeff Kuyken ; Meteorite List 
  Sent: Wednesday, May 12, 2004 5:25 
  PM
  Subject: Re: [meteorite-list] Happy 
  Birthday Bernd & Thanks
  
  Happy birthday Bernd! And welcome 
  Back!
   
  Fred B
  www.meteoriteshow.com
   
  
- Original Message - 
From: 
Jeff Kuyken 
To: Meteorite List 
Sent: Wednesday, May 12, 2004 9:10 
AM
Subject: [meteorite-list] Happy 
Birthday Bernd & Thanks

G'day List,
 
As many of you have probably already noticed, Bernd has 
been back on the list helping out everyone he can with his wealth of 
information. Bernd has helped me out many times as I'm sure he has 
for others too. So I for one would like to say thanks and welcome back. The 
list has been a much more useful tool over the past couple of months which I 
really hope continues. Today is also Bernd's birthday which he made the 
mistake of telling me a while back. ;-) So Happy Birthday 
Bernd!
 
Cheers,
 
Jeff KuykenI.M.C.A. #3085www.meteorites.com.au



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[meteorite-list] More About Permian-Triassic Boundary "GREAT DYING" Crater???

[Paul H]

In the thread "[meteorite-list] FW: NASA ANNOUNCES 
SITE OF "GREAT DYING" METEORCRATER", Devin Schrader 
makinsomenoise wrote:
 
>Thanks for the sites, I've read her papers but it
>never seemed like she had enough conclusive evidence 
>to prove her theory, never solid enough. I wonder 
>if she found it."

Using Google, I found the text concerning the proposed

crater, although the original document is no longer 
there, at:

http://216.239.57.104/search?q=cache:CoO-SXKVgLYJ:projects.crustal.ucsb.edu/beckerantarctica/downloads/bedout_lb_4-06.doc+bedout+crater&hl=en

In part, the text read:

"Bedout: A Possible End-Permian Impact Crater Offshore

Northwestern Australia

L. Becker1*, R. J. Poreda2, A. R. Basu2, K. Pope3, M. 
Harrison4, C. Nicholson1, R. Iasky5

1Institute for Crustal Studies, Department of
Geological 
Sciences, University of California, Santa Barbara
93106, 
USA, 2Department of Earth and Environmental Sciences, 
University of Rochester, Rochester, NY, USA, 4Geo Eco 
Arc Research, Aquasco, MD 20608, 5Australian National 
University, Canberra, Australia, 6Geological Survey 
Western Australia, Perth, Australia
__

* To whom correspondence should be addressed

Abstract

   The Bedout High located on the northwestern
continental 
margin of Australia has emerged as a prime candidate
for an 
end Permian impact structure. Seismic imaging, gravity
data 
and the identification of melt rocks and impact
breccias 
from drill cores located on top of Bedout are
consistent 
with the presence of a buried impact crater. The
impact 
breccias contain nearly pure silica glass (SiO2),
fractured 
and shock-melted plagioclases and spherulitic glass.
The 
distribution of glass and shocked minerals over
hundreds 
of meters of drill core implies that a melt sheet is 
present.  Available gravity and seismic data suggest
that 
the Bedout High represents the central uplift of a
crater 
similar in size to Chicxulub. A single plagioclase
grain 
from the Lagrange-1 exploration well has an Ar/Ar age
of 
250.7 1 4.3 million years.  The location and age of
the 
Bedout crater can account for reported occurrences of 
impact debris in Permian-Triassic boundary sediments 
worldwide."

++

" Geology of the Bedout Structure 

The Bedout High is part of the Roebuck basin that
forms the 
northwestern  continental margin of Australia (Fig.
2.).  Existing 
studies of  the structure include two regional seismic
surveys 
conducted by the  Australian Geological Survey (AGSO)
and the 
Japan National Oil Company  (JNOC) and two exploratory
wells 
drilled 9 km apart on the top and flank  of the Bedout
High, 
Bedout -1 and Lagrange-1, that extend to depths of 
3052 m 
(9986 ft.) and 3273 m (10,738 ft.), respectively (Fig.
3, S-2).   
Both wells drilled through ~3 km of marine and fluvial
sediments 
consisting  of carbonates with occasional interbeded
siltstones and 
mudstones (Tertiary  to Cretaceous) and sandstones
interbeded 
with claystones, siltstones  and coal (Cretaceous to
Triassic) before 
reaching a breccia. (Late Permian;  Fig. S-2, 15). Two
of the 14 
AGSO regional seismic lines cross over  the Bedout
High (Fig. 2).  
In addition, four wells penetrate Permian  strata (two
are shown in 
Fig. 2.) offshore that help to identify seismic 
reflectors that define 
the Bedout structure and stratigraphy. In both  the
Lagrange-1 and 
Bedout -1 cores and cuttings fluviatile and marine 
Keraudren 
(Middle to Late Triassic) sediments are deposited
directly  on top 
of the breccia (Late Permian; Fig. 4, S-2, S-3)."

Also, there is:

"GLOBAL EVIDENCE FOR AN END-PERMIAN 
EXTINCTION EVENT" at:

http://www.cosis.net/abstracts/EAE03/08101/EAE03-J-08101.pdf

and

"BEDOUT: AN END-PERMIAN IMPACT CRATER 
OFFSHORE NORTHWESTERN AUSTRALIA"

http://www.exopi.org/pdfs/Becker_Bedout.pdf

A map showing the location of the Bedout High can be
found at:

http://www1.industry.gov.au/archive/petr_exploration/2002/goldbook/W02-1to6/Figures/rowley_fig2.pdf

Yours,

Paul
Baton Rouge, LA





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[meteorite-list] Costa Mesa Show

[Matson, Robert]

Hi 
Steve and List,
 
> Can anybody give me the information for the 
Costa Mesa Show this 
> weekend ?  Where exactly ? Days it will be 
open? 
 
If the past is anything to go on, it's open Friday, Saturday 
and Sunday.
Holiday Inn just south of the 405 off of Bristol on the right-hand 
side.
There's a McDonald's just past 
it.
 
The Costa Mesa show is less than 10 miles from my house as 
the
crow flies; alas, I will be in Yosemite this weekend and will miss 
it.
 
--Rob
 
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[meteorite-list] new dispaly case

[Steve Arnold, Chicago!!!]

Hello and good evening list.Well after 3 years of trying to get this thing
to be built, it is finally done.My new meteorite dispaly case.My friend
who built it for me, he and I will be putting it up tonight.It will be
able to hold up to  125 specimens of the 317 pieces I own.Of course, only
my best will be up there.I will have pics of it up on website homepage
soon.It is a real stunner.

steve arnold, chicago

=
Steve R.Arnold, Chicago, IL, 60120 
I. M. C. A. MEMBER #6728 
Illinois Meteorites 
website url http://stormbringer60120.tripod.com
http://members.ebay.com/aboutme/illinoismeteorites/
 
 










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Re: [meteorite-list] Las Vegas

[Jerry A. Wallace]

Hi Tom (Peregrineflinger, etc.),

Good to see you back on the list. Glad you found work.

Hi, I am going to be working in Vegas and was wondering if anyone from there
can give me info on hunting in the area?
Just wander into the desert...dp into the desert. Look down. Find 
meteorite.

Jerry

PS... Take water. Beware of indians.

PPS... Jerry's Tips: first one free, $5.00 each thereafter.



Tom aka James Knudson wrote:

Hi, I am going to be working in Vegas and was wondering if anyone from there
can give me info on hunting in the area?
Thanks, Tom
peregrineflier <><
IMCA 6168
http://www.frontiernet.net/~peregrineflier/Peregrineflier.htm
"I'm living so far beyond my income that we may almost be said to be living
apart."
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[meteorite-list] Las Vegas

[Tom aka James Knudson]

Hi, I am going to be working in Vegas and was wondering if anyone from there
can give me info on hunting in the area?
Thanks, Tom
peregrineflier <><
IMCA 6168
http://www.frontiernet.net/~peregrineflier/Peregrineflier.htm
"I'm living so far beyond my income that we may almost be said to be living
apart."

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Re: [meteorite-list] the real name of the sherbinator

[CMcdon0923]

In his defense, I think he does state in the listings that he doesn't guarantee that 
they're meteorites.

Like eBay says.caveat emptor.
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[meteorite-list] AMGALA Sale

[dean bessey]

I am not completely convinced that this is a witnessed
fall but it certainly is fresh and nice enough crust.
I have been months waiting expecting a ton of this to
come out and several weeks ago after getting offered a
single stone from several different moroccans and a
dealer in Morocco started offering multi kilo
quantities to everybody I felt that my suspicions that
there was lots were confirmed. However, it turned out
that this moroccan dealer was pulling a scam and there
really appears that there is not much more around as
the strewnfield has been extensively hunted now and
this is so fresh that I cant imagine any being covered
in the ground to turn up later using metal detectors.
So I doubt more will turn up.
I have 3 small pieces on ebay started at a penny (See
my user id AMUNRE to find them) and I also have these
pieces listed here. This is not a meteorite that I
have put much effort into acquiring (You all know me -
I like selling stuff for 20 cents a gram rather than
pricier material like this) and this is all that I
have although I might decide later to cut up one of
the slices. Add $3 postage
__
38 Gram slice with crust all around the edge $250:
http://www.meteoriteshop.com/aa-amgala1.jpg
29 gram end piece with some crust but not as nice as
the rest of the meteorite $195
http://www.meteoriteshop.com/aa-amgala2.jpg
32.3 gram slice with crust on the edge $220
http://www.meteoriteshop.com/aa-amgala3.jpg
_
Gotta love this 38.3 gram nosepiece $275
http://www.meteoriteshop.com/aa-amgala4.jpg
38.6 gram slice with crust all along the edge $265
http://www.meteoriteshop.com/aa-amgala5.jpg
5.6 Grams an dlots of crust $48
http://www.meteoriteshop.com/aa-amgala6.jpg
3.1 grams and tiny bit of crust on the end $27.50
http://www.meteoriteshop.com/aa-amgala7.jpg

3.7 Grams $27.50
http://www.meteoriteshop.com/aa-amgala8.jpg
2.6 Grams $25
http://www.meteoriteshop.com/aa-amgala9.jpg
3.5 Grams $29
http://www.meteoriteshop.com/aa-amgala10.jpg
2.4 grams $25
http://www.meteoriteshop.com/aa-amgala11.jpg
2.5 Grams $25
http://www.meteoriteshop.com/aa-amgala12.jpg
_
1.2 Grams $15
http://www.meteoriteshop.com/aa-amgala13.jpg
1.1 Grams $15
http://www.meteoriteshop.com/aa-amgala14.jpg





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[meteorite-list] AMGALA Sale

[dean bessey]

I am not completely convinced that this is a witnessed
fall but it certainly is fresh and nice enough crust.
I have been months waiting expecting a ton of this to
come out and several weeks ago after getting offered a
single stone from several different moroccans and a
dealer in Morocco started offering multi kilo
quantities to everybody I felt that my suspicions that
there was lots were confirmed. However, it turned out
that this moroccan dealer was pulling a scam and there
really appears that there is not much more around as
the strewnfield has been extensively hunted now and
this is so fresh that I cant imagine any being covered
in the ground to turn up later using metal detectors.
So I doubt more will turn up.
I have 3 small pieces on ebay started at a penny (See
my user id AMUNRE to find them) and I also have these
pieces listed here. This is not a meteorite that I
have put much effort into acquiring (You all know me -
I like selling stuff for 20 cents a gram rather than
pricier material like this) and this is all that I
have although I might decide later to cut up one of
the slices. Add $3 postage
__
38 Gram slice with crust all around the edge $250:
http://www.meteoriteshop.com/aa-amgala1.jpg
29 gram end piece with some crust but not as nice as
the rest of the meteorite $195
http://www.meteoriteshop.com/aa-amgala2.jpg
32.3 gram slice with crust on the edge $220
http://www.meteoriteshop.com/aa-amgala3.jpg
_
Gotta love this 38.3 gram nosepiece $275
http://www.meteoriteshop.com/aa-amgala4.jpg
38.6 gram slice with crust all along the edge $265
http://www.meteoriteshop.com/aa-amgala5.jpg
5.6 Grams an dlots of crust $48
http://www.meteoriteshop.com/aa-amgala6.jpg
3.1 grams and tiny bit of crust on the end $27.50
http://www.meteoriteshop.com/aa-amgala7.jpg

3.7 Grams $27.50
http://www.meteoriteshop.com/aa-amgala8.jpg
2.6 Grams $25
http://www.meteoriteshop.com/aa-amgala9.jpg
3.5 Grams $29
http://www.meteoriteshop.com/aa-amgala10.jpg
2.4 grams $25
http://www.meteoriteshop.com/aa-amgala11.jpg
2.5 Grams $25
http://www.meteoriteshop.com/aa-amgala12.jpg
_
1.2 Grams $15
http://www.meteoriteshop.com/aa-amgala13.jpg
1.1 Grams $15
http://www.meteoriteshop.com/aa-amgala14.jpg





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[meteorite-list] Antarctica Meteorites Web Page

[Paul H]

There is a very nice web page about Antarctica
Meteorites on 
Dr. Luann Becker's web site. It is "Antarctica
Meteorites  - 
Science Notes - 12/03/03" at:

http://beckerantarctica.crustal.ucsb.edu/science_notes_11_26_03.html

There is a nice figure at:

http://beckerantarctica.crustal.ucsb.edu/images/sublimation_cartoon.gif

yours,

Paul
Baton Rouge, LA




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Re: [meteorite-list] FW: NASA ANNOUNCES SITE OF "GREAT DYING"METEORCRATER

[Devin Schrader]

   Thanks for the sites, I've read her papers but it never seemed like she
had enough conclusive evidence to prove her theory, never solid enough. I
wonder if she found it.
Devin


- Original Message - 
From: "Paul H" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Wednesday, May 12, 2004 11:54 AM
Subject: [meteorite-list] FW: NASA ANNOUNCES SITE OF "GREAT
DYING"METEORCRATER


> FW: NASA ANNOUNCES SITE OF "GREAT DYING" METEORCRATER
> Devin Schrader asked:
>
> >I wonder if they found enough evidence for
> Antarctica?
>
> The password "beckerImpact" sounds like an illusion
> to:
> Dr. Luann Becker's work in Antarctica.
>
> Some of her web pages are:
>
> "Exploring Antarctica: Understanding Earth and Beyond"
> http://beckerantarctica.crustal.ucsb.edu/index.html
> http://beckerantarctica.crustal.ucsb.edu/photo_journal_week3.html
>
> Her research papers are found at:
>
> http://beckerantarctica.crustal.ucsb.edu/research_papers.html
>
> Some of them are:
>
> ROBERT J. POREDA and LUANN BECKER, 2003, Fullerenes
> and Interplanetary Dust at the Permian-Triassic
> Boundary.
> Astrobiology. Volume 3, Number 1, 2003
> http://beckerantarctica.crustal.ucsb.edu/downloads/poreda.pdf
>
> Basu, A. R., Petaev, M. I., Poreda, R. J., Jacobsen,
> S. B., and Becker, L., 2003, Chondritic meteorite
> fragments associated with the Permian-Triassic
> boundary in Antarctica. Science. vol. 302,
> pp.1388-1392.
>
http://beckerantarctica.crustal.ucsb.edu/downloads/chondritic_meteorite_fragments.pdf
>
> Luann Becker, 2002, Repeated Blows. Scientific
> American.
> vol. ?, pp. 78-83.
> http://beckerantarctica.crustal.ucsb.edu/downloads/blows.pdf
>
> Another paper is:
>
> Impact Event at the Permian-Triassic Boundary:
> Evidence
> from Extraterrestrial Noble Gases in Fullerene. Luann
> Becker, Robert J. Poreda, Andrew G. Hunt, Theodore E.
> Bunch and Michael Rampino in Science, Vol. 291,
> pp. 1530-1533; February 23, 2001.
>
> Then there is:
>
> 11/26/03 - Claystone Breccia on Mt. Crean.
> http://beckerantarctica.crustal.ucsb.edu/week3_6.html
>
> This breccia might be at the distal edge of the ejecta
> blanket from an impact crater.
>
> Regardless, it will be quite fun wherever they
> hypothesize it to be.  :-)  :-)  If this works out,
> she will have made her name.
>
> Yours,
>
> Paul
> Baton Rouge, LA
>
>
>
>
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[meteorite-list] Costa Mesa Show

[Steven Drummond]

Hi List,   
    Can 
anybody give me the information for the Costa Mesa Show this weekend ?  
Where exactly ? Days it will be open? 
 Thank You,   Best Regards to all , 
Steven Drummond 
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[meteorite-list] FW: NASA ANNOUNCES SITE OF "GREAT DYING" METEORCRATER

[Paul H]

FW: NASA ANNOUNCES SITE OF "GREAT DYING" METEORCRATER
Devin Schrader asked:

>I wonder if they found enough evidence for
Antarctica?

The password "beckerImpact" sounds like an illusion
to:
Dr. Luann Becker's work in Antarctica.

Some of her web pages are:

"Exploring Antarctica: Understanding Earth and Beyond"
http://beckerantarctica.crustal.ucsb.edu/index.html
http://beckerantarctica.crustal.ucsb.edu/photo_journal_week3.html

Her research papers are found at:

http://beckerantarctica.crustal.ucsb.edu/research_papers.html

Some of them are:

ROBERT J. POREDA and LUANN BECKER, 2003, Fullerenes 
and Interplanetary Dust at the Permian-Triassic
Boundary.
Astrobiology. Volume 3, Number 1, 2003
http://beckerantarctica.crustal.ucsb.edu/downloads/poreda.pdf

Basu, A. R., Petaev, M. I., Poreda, R. J., Jacobsen, 
S. B., and Becker, L., 2003, Chondritic meteorite 
fragments associated with the Permian-Triassic 
boundary in Antarctica. Science. vol. 302,
pp.1388-1392.
http://beckerantarctica.crustal.ucsb.edu/downloads/chondritic_meteorite_fragments.pdf

Luann Becker, 2002, Repeated Blows. Scientific
American. 
vol. ?, pp. 78-83.
http://beckerantarctica.crustal.ucsb.edu/downloads/blows.pdf

Another paper is:

Impact Event at the Permian-Triassic Boundary:
Evidence 
from Extraterrestrial Noble Gases in Fullerene. Luann 
Becker, Robert J. Poreda, Andrew G. Hunt, Theodore E. 
Bunch and Michael Rampino in Science, Vol. 291, 
pp. 1530-1533; February 23, 2001.

Then there is:

11/26/03 - Claystone Breccia on Mt. Crean. 
http://beckerantarctica.crustal.ucsb.edu/week3_6.html

This breccia might be at the distal edge of the ejecta
blanket from an impact crater.

Regardless, it will be quite fun wherever they
hypothesize it to be.  :-)  :-)  If this works out, 
she will have made her name.

Yours,

Paul
Baton Rouge, LA




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Re: [meteorite-list] FW: NASA ANNOUNCES SITE OF "GREAT DYING" METEORCRATER

[Devin Schrader]

I wonder if they found enough evidence for Antarctica?
Devin

- Original Message - 
From: "Matson, Robert" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Wednesday, May 12, 2004 11:00 AM
Subject: [meteorite-list] FW: NASA ANNOUNCES SITE OF "GREAT DYING"
METEORCRATER


> -Original Message-
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED] Behalf Of
> [EMAIL PROTECTED]
> Sent: Wednesday, May 12, 2004 10:00 AM
> To: undisclosed-recipients
> Subject: NASA ANNOUNCES SITE OF "GREAT DYING" METEOR CRATER
>
>
> Donald Savage
> Headquarters, WashingtonMay 12, 2004
> (Phone: 202/358-1547)
>
> Gail Gallessich
> University of California, Santa Barbara
> (Phone: 805/893-7220)
>
> NOTE TO EDITORS: N04-069
>
> NASA ANNOUNCES SITE OF "GREAT DYING" METEOR CRATER
>
>  Researchers funded by NASA and the National Science
> Foundation have located the site of an impact crater. The
> crater is believed to be associated with the largest
> extinction event in Earth's history about 250 million years
> ago.
>
> The researchers will report their findings and reveal the site
> of the crater at 2 p.m. EDT, Thursday, May 13, 2004, during a
> press teleconference.
>
> Panelists are:
> -- Luann Becker, geologist, University of California, Santa
> Barbara, Calif.
> -- Robert Poreda, geochemist, University of Rochester, N.Y.
> -- Kevin Pope, geologist, Geo Eco Arc Research, Aquasco, Md.
> -- Douglas H. Erwin, Senior Paleobiologist, National Museum of
> Natural History, Washington
> -- Michael New, astrobiology discipline scientist, NASA
> Headquarters, Washington; panel moderator
>
> Reporters may call in to the press conference to hear the
> presentation and participate in the question-and-answer
> session, while following the presentations on a Web site.
>
> The phone numbers for reporters to call into the press
> conference are: 1/888/790-1919 or 1/712/271-0046. The password
> is: Impact SSU
>
> The Web site for reporters to access the presentations:
>
> http://spacekids.hq.nasa.gov/astrobio
>
> Password: beckerImpact
>
> -end-
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[meteorite-list] FW: NASA ANNOUNCES SITE OF "GREAT DYING" METEOR CRATER

[Matson, Robert]

-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] Behalf Of
[EMAIL PROTECTED]
Sent: Wednesday, May 12, 2004 10:00 AM
To: undisclosed-recipients
Subject: NASA ANNOUNCES SITE OF "GREAT DYING" METEOR CRATER 


Donald Savage
Headquarters, WashingtonMay 12, 2004
(Phone: 202/358-1547)

Gail Gallessich
University of California, Santa Barbara
(Phone: 805/893-7220)

NOTE TO EDITORS: N04-069

NASA ANNOUNCES SITE OF "GREAT DYING" METEOR CRATER 

 Researchers funded by NASA and the National Science 
Foundation have located the site of an impact crater. The 
crater is believed to be associated with the largest 
extinction event in Earth's history about 250 million years 
ago.

The researchers will report their findings and reveal the site 
of the crater at 2 p.m. EDT, Thursday, May 13, 2004, during a 
press teleconference.

Panelists are:
-- Luann Becker, geologist, University of California, Santa 
Barbara, Calif.
-- Robert Poreda, geochemist, University of Rochester, N.Y.
-- Kevin Pope, geologist, Geo Eco Arc Research, Aquasco, Md. 
-- Douglas H. Erwin, Senior Paleobiologist, National Museum of 
Natural History, Washington
-- Michael New, astrobiology discipline scientist, NASA 
Headquarters, Washington; panel moderator

Reporters may call in to the press conference to hear the 
presentation and participate in the question-and-answer 
session, while following the presentations on a Web site.

The phone numbers for reporters to call into the press 
conference are: 1/888/790-1919 or 1/712/271-0046. The password 
is: Impact SSU

The Web site for reporters to access the presentations:

http://spacekids.hq.nasa.gov/astrobio

Password: beckerImpact

-end-
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Re: [meteorite-list] Happy Birthday Bernd & Thanks

[meteoriteshow]

Happy birthday Bernd! And welcome 
Back!
 
Fred B
www.meteoriteshow.com
 

  - Original Message - 
  From: 
  Jeff Kuyken 
  To: Meteorite List 
  Sent: Wednesday, May 12, 2004 9:10 
  AM
  Subject: [meteorite-list] Happy Birthday 
  Bernd & Thanks
  
  G'day List,
   
  As many of you have probably already noticed, Bernd has been 
  back on the list helping out everyone he can with his wealth of 
  information. Bernd has helped me out many times as I'm sure he has 
  for others too. So I for one would like to say thanks and welcome back. The 
  list has been a much more useful tool over the past couple of months which I 
  really hope continues. Today is also Bernd's birthday which he made the 
  mistake of telling me a while back. ;-) So Happy Birthday Bernd!
   
  Cheers,
   
  Jeff KuykenI.M.C.A. #3085www.meteorites.com.au
  
  

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[meteorite-list] New meteorites: 3x L3 and 1x breccia

[Meteoryt.net]

Hello List
This time I not announce nothing for sale :))
I just upload to my page www.polandmet.com in section NEW FINDS photos of my
new (propably) three L3 chondrites and one verry nice L breccia. All this
specimens (except first L3 named NWAxxx2) I find in 3kg LOT of verry ugly,
unsorted meteorites buyed in Midelt Morocco this spring. I have some free
time so I decide to cut some of them to see if I not find something
interesting inside and bingo !!! I cut only a few specimens when next
meteorite show inside a super nice chondrules, "True L3!" I say. So another
2 days I spend cutting everything from this lot. Meteorites from 200g to
10g. When I finished I have now 2x new L3 and one breccia.

Any opinion will be interesting. I not send this meteorites to
classification yet, becouse they are too small. Maybe some day I sacrifice
slices to make thin slices.

-[ MARCIN CIMALA ]-[ I.M.C.A.#3667 ]-
http://www.Meteoryt.net [EMAIL PROTECTED]
http://www.PolandMET.com   [EMAIL PROTECTED]
http://www.Gao-Guenie.com  GSM +48(607)535 195
[ Member of: Polish Meteoritical Society ]

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[meteorite-list] Re: Unstable Meteorites

[John Birdsell]

Hello Tom.  We can not speak for the other dealers out there, but we 
would recommend contacting the dealer that you purchased the meteorite 
from and asking for a replacement or a refund. 

Good Luck!

John & Dawn
Arizona Skies Meteorites
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[meteorite-list] Mars Global Surveyor Images - May 6-12, 2004

[Ron Baalke]

MARS GLOBAL SURVEYOR IMAGES
May 6-12, 2004

The following new images taken by the Mars Orbiter Camera (MOC) on
the Mars Global Surveyor spacecraft are now available:

o Channel on Ascraeus Mon (Released 06 May 2004)
  http://www.msss.com/mars_images/moc/2004/05/06/index.html

o Rock Slide in Ophir (Released 07 May 2004)
  http://www.msss.com/mars_images/moc/2004/05/07/index.html

o Martian Gullies (Released 08 May 2004)
  http://www.msss.com/mars_images/moc/2004/05/08/index.html

o Sand Dunes with Frost (Released 09 May 2004)
  http://www.msss.com/mars_images/moc/2004/05/09/index.html

o Sedimentary Rocks of Aram Chaos (Released 10 May 2004)
  http://www.msss.com/mars_images/moc/2004/05/10/index.html

o Opportunity's Clouds (Released 11 May 2004)
  http://www.msss.com/mars_images/moc/2004/05/11/index.html

o Ares Vallis Dust Devi (Released 12 May 2004)
  http://www.msss.com/mars_images/moc/2004/05/12/index.html



All of the Mars Global Surveyor images are archived here:

http://www.msss.com/mars_images/moc/index.html

Mars Global Surveyor was launched in November 1996 and has been
in Mars orbit since September 1997.   It began its primary
mapping mission on March 8, 1999.  Mars Global Surveyor is the 
first mission in a long-term program of Mars exploration known as 
the Mars Surveyor Program that is managed by JPL for NASA's Office
of Space Science, Washington, DC.  Malin Space Science Systems (MSSS)
and the California Institute of Technology built the MOC
using spare hardware from the Mars Observer mission. MSSS operates
the camera from its facilities in San Diego, CA. The Jet Propulsion
Laboratory's Mars Surveyor Operations Project operates the Mars Global
Surveyor spacecraft with its industrial partner, Lockheed Martin
Astronautics, from facilities in Pasadena, CA and Denver, CO.

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AW: [meteorite-list] Classification

[Jörn Koblitz]

Dear Tom,

The reason is rather simple: nickel test is only applicable to iron meteorites. For 
stony meteorites - about 90% of all meteorites - it would not give clear doubtless 
results and it even would contaminate the meteorite. In case of iron meteorites, the 
easiest way to identify the cosmic origin is to etch a blank surface using nitric or 
hydrochloric acid to see if a Widmanstätten pattern is present. Often - especially in 
case of medium and coarse octahedrites - one can even see this structure on a cut, 
untreated surface, because of different mechanical properties of contained kamacite 
and plessite/taenite. In the rare case, that no Widmanstätten pattern is existant 
(ataxites or hexahedrites), the nickel test would indeed help to disciminate the 
cosmic from a terrestrial origin.

Best regards,
Jorn Koblitz


> -Ursprüngliche Nachricht-
> Von: Thomas Kingery [mailto:[EMAIL PROTECTED]
> Gesendet: Mittwoch, 12. Mai 2004 14:57
> An: [EMAIL PROTECTED]
> Betreff: [meteorite-list] Classification
> 
> 
> I am curious why I have never seen anyone mention that they 
> at least did
> a nickel test on an unclassified meteorite they are selling. I realize
> this does not prove it to be a meteorite but does increase the
> possibility.
> Here in Texas  there are a few ranchers and others that state 
> they found
> what they believe to be a meteorite but have never nickel 
> tested or sent
> off to be analyzed
> 
> Tom Kingery
>  Llano,TX 
> 
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[meteorite-list] Unstable Meteorites

[Thomas Kingery]

I recently purchased an old Campo 121 gm end cut from an active dealer
on e-bay. Over the last several weeks it has nearly rusted away. I tried
everything to preserve it but all has failed. I can not resell it.
My question is, should I contact seller and see if he would be willing
to do something or should I just eat it.
When I purchased it I did not know the difference between the old and
new Campo's and seller did not state it.

   Tom Kingery
   IMCA 9079

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[meteorite-list] Classification

[Thomas Kingery]

I am curious why I have never seen anyone mention that they at least did
a nickel test on an unclassified meteorite they are selling. I realize
this does not prove it to be a meteorite but does increase the
possibility.
Here in Texas  there are a few ranchers and others that state they found
what they believe to be a meteorite but have never nickel tested or sent
off to be analyzed

Tom Kingery
 Llano,TX 

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Re: [meteorite-list] the real name of the sherbinator

[Michael L Blood]

Hi Steve & all,
Interesting he reports a large collection, as I do not remember
having ever heard of him. Certainly, he has never bought from me,
though I suppose it is possible someone could be collecting meteorites
in San Diego and it somehow escaped my attention
Best wishes, Michael

on 5/11/04 7:12 PM, Steve Arnold, Chicago!!! at [EMAIL PROTECTED]
wrote:

> Hello list.The name of ebay seller (SHERBINATOR), is JON BLEYER.He lives
> in san diego.So if anyone knows this guy, he is the one selling these
> stones on ebay that he is trying to pass off as meteorites.He says that he
> is trying to sell these off from a friend who lives in san diego.He also
> states that he has a large meteorite collection.He says his friend found
> these out in some remote part of death valley.You all can be judge of this
> one.My verdict is in.
> 
>steve arnold, chicago
> 
> =
> Steve R.Arnold, Chicago, IL, 60120
> I. M. C. A. MEMBER #6728
> Illinois Meteorites
> website url http://stormbringer60120.tripod.com
> http://members.ebay.com/aboutme/illinoismeteorites/
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> __
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> Yahoo! Movies - Buy advance tickets for 'Shrek 2'
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--
When Jesus said "Love your enemies" I think he probably
meant don't kill them.
   Anonymous
--
For perspective, try THIS:
http://micro.magnet.fsu.edu/primer/java/scienceopticsu/powersof10/index.html
--
cool message fro Ben & Jerry:
www.TrueMajority.org/oreo
--
AMAZING photos of Aurora Borealis, etc.
http://faculty.rmwc.edu/tmichalik/atmosphere.htm
--
Hubble space telescope - AMAZING photos!:
http://wires.news.com.au/special/mm/030811-hubble.htm
--
http://www.costofwar.com/
--
SUPPORT OUR TROUPS:
http://www.takebackthemedia.com/onearmy.html
--
Worth Seeing:  Earth at night from satellite:
http://antwrp.gsfc.nasa.gov/apod/image/0011/earthlights_dmsp_big.jpg
--
- Interactive Lady Liberty:
http://doody36.home.attbi.com/liberty.htm
-- 
Earth - variety of choices:
http://www.fourmilab.ch/earthview/vplanet.html
--
Michael Blood Meteorites:
http://www.michaelbloodmeteorites.com/



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Re: [meteorite-list] New slices: LAMPIAYRIE from Burkina Faso

[Meteoryt.net]

> Thank you for clearing up the IMB issue as the specimens we have did not
> indicate this.  After revisiting your web-site I see how it was
> misinterpreted.  Thank you for showing the largest fragment thus far
> reported. At 4.25 kilos and only a fraction of the stone it came from we
are
> beginning to believe the 250 plus kilogram figure we heard as the TKW of
> this fall.  Could this fragment have come from the rumored 60 kilogram
main
> mass?

Main problem that I have is that my dealer know english like me japanise
language :)) so sometimes is hard to know what he want to say. Anyway I try
to explain him that information about date/time of fall, tkw etc is
importand but he never answer me about this. Only he tells me where this
meteorite fall, around what bigger city, so thats becouse I called it
Lampiayrie for now.
The best thing to do will be fly to Burkina and get all info myself. But
this is work propably for Mike :)), not for me.

-[ MARCIN CIMALA ]-[ I.M.C.A.#3667 ]-
http://www.Meteoryt.net [EMAIL PROTECTED]
http://www.PolandMET.com   [EMAIL PROTECTED]
http://www.Gao-Guenie.com  GSM +48(607)535 195
[ Member of: Polish Meteoritical Society ]

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RE: [meteorite-list] Happy Birthday Bernd & Thanks

[tracy latimer]

Yes, indeed, Happy Birthday and thank you, Bernd!  We will quaff one in your 
name, as we attempt to locate comets LINEAR and NEAT (unlikely, as it is 
presently quite overcast here in HI.)

Tracy Latimer


As many of you have probably already noticed, Bernd has been back on the 
list helping out everyone he can with his wealth of information. Bernd has 
helped me out many times as I'm sure he has for others too. So I for one 
would like to say thanks and welcome back. The list has been a much more 
useful tool over the past couple of months which I really hope continues. 
Today is also Bernd's birthday which he made the mistake of telling me a 
while back. ;-) So Happy Birthday Bernd!

Cheers,

Jeff Kuyken
I.M.C.A. #3085
www.meteorites.com.au
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[meteorite-list] Utah KT and strange rock contents sliced in half

[Charles Viau]

Hello List,

I am getting around to analyzing the rock samples obtained from my KT
Boundary quest in Utah last year.  This Rock shown was eliptical, like a
number of samples taken from an exposed KT strata in Utah, in the
Escalante region (Staircase).  The first image is the rock cut in half,
presented on a scanner for hi-res.  The second is a picture of the KT
area it was taken from.

There were a lot of these rounded, egg shaped rocks in this strata.
They represent some kind of glassy material, and there is metal in them.
There are also some clasts of a burgundy gem or chip scattered
throughout.  This stuff looks a lot like some of the Wanapitei impact
melt  (in consistency) that I purchased a few years ago.  The rock looks
like a breccia, but I am not so sure. Anyone want to hazard a guess as
to what this stuff is? I will gladly send a sample to anyone qualified
and really cares enough to give it a proper analysis.  Thanks,

http://home.beld.net/~belugaband/ebay_images/EKSPHERE.jpg
http://home.beld.net/~belugaband/ebay_images/EKT.jpg

Oh, and if anyone cares, the band I am in , Belugaband,  is
www.belugaband.com , where these images are stored.

Thanks

CharlyV


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[meteorite-list] Happy Birthday Bernd & Thanks

[Jeff Kuyken]

G'day List,
 
As many of you have probably already noticed, Bernd has been 
back on the list helping out everyone he can with his wealth of 
information. Bernd has helped me out many times as I'm sure he has for 
others too. So I for one would like to say thanks and welcome back. The list has 
been a much more useful tool over the past couple of months which I 
really hope continues. Today is also Bernd's birthday which he made the 
mistake of telling me a while back. ;-) So Happy Birthday Bernd!
 
Cheers,
 
Jeff KuykenI.M.C.A. #3085www.meteorites.com.au
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Re: [meteorite-list] Tatahouine:Slickensides vs Shattercones

[E. L. Jones]

Hello Steve, List.

You raise a couple questions about geologic structures so here is the 
scoop and why.  These photos are not an example of  "slickenside".  Zag, 
however, has the definitive example of slickenside found within a 
meteorite. a slickenside appears  polished--hence the term "slick". For 
an enlarged photo of Zag slickenside 
 or 
 for the main page

Terrestrial slickenside can be very thin or not, undulating, and can run 
for the length of a fault.  In meteorites, they are much thinner, form 
rapidly-- or in theory, by successive slips caused by successive 
collisions, as opposed to forming over time during fault slippages such 
as would be the case on Earth.   It can undulate depending on the axis 
one views it.  It is filled with a micro vein of reconsolidated "rock 
flower"or --debris dislodged in the grinding process of the two adjacent 
surfaces slipping by each other. Meteoritical slickenside such as in Zag 
resembles a very thin vein of coal or carbonaceous shale.  To my 
knowledge it doesn't contain glass such as maskenlite (which would 
indicate flash melting and shock rebounding). It is clearly formed by 
two surfaces slipping by each other.

As to shattercones...
The possibilities of "shattercone-like" structures in Tatahouine as been 
discussed before with no conclusions.  Recently a study was conducted on 
Tatahouine that found blebs of Alpha-crystobalite (a low temperature but 
high temperature polymorph of quartz).  This perhaps indicates a low 
shock stage which tends to rule out shattercones.  On the other hand, 
there were clues to a shock stage 5 followed by "annealing" which would 
have reabsorbed the laminae we would expect to find in sheared surfaces 
which might favor a shattercone effect. If there are shattercones in 
this meteorite they are not in a form as we know them on earth.

What you are likely seeing in your specimen is the striation/laminae of 
the "enstatite twinning law". Striations are superficially similar but 
distinctly different structures to shattercones.  In mineralogy, certain 
minerals tend to follow patterns within a given mineral. A twin is two 
or more crystals growing within each other.(still called a twin even if 
it is a triplet). Sometimes they cross, sometimes they grow interlaced 
like a deck of cards shuffled into each other. This interlaced form is 
what enstatite follows.  This meteorite is composed of an orthopyroxene 
(inosilicate series) at a ratio of Enstatite75%:Mg2 Si2 O6 and 
Ferrosilite25%: Fe2 Si2 O6.   Enstatite is known for a laminate 
twining/striations.

As I understand it-- with cleavage plans at 87° or so, the enstatite 
plates are orientted back to back ( think of stacking playing cards face 
to back and looking at the whole deck from the side.  What you are 
seeing is the truncated cleavage planes edge on.  If you looked down the 
edge, parallel to the laminae,  under a microscope, the edge would look 
like the teeth of a saw blade.  To further complicate the observation, 
Tatahouine appears sort of homogeneous-what might be called in 
mineralogy "massive".  In fact it seems to be composed of large 
intergrown and extensively orientated enstatite crystals. This may 
contribute to the appearance of a shattercone look when trying to trace 
the striation lines from one surface to another.  We don't ordinarily 
see a fragment large enough to see a zig-zag-zig-zag as in a line of 
toppled dominoes. We only see closely spaced "zigs"in different planes 
so they look like they are converging toward a point. 

Regards,
Elton
Steve Witt wrote:

Greetings List,

Slickensides has been a topic brought up many times on the list. I'm
still not exactly clear on what this is and I'd like to get a
clarification. I recently acquired a small fragment of Tatahouine
from Anne Black at Impactika. Besides having some fusion crust the
specimen shows striations very similar to those seen in shattercones.
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