Good morning all. When I posted those 10 meteorites, I should have given
prices. For that I'm sorry. Here they are, and remember, the NWA
176,SIKOTE-ALIN andnwa 869 have been traded away.
1. valera$80
2.canyon diablo $70
3.wagon mound$90
4.brahin$200
5.morasko$300
Dear Rhett,Bernd and list
In general when obtaining a measurement outside the norm (here Fa% for H
within 17-20), the inference this is an anomalous meteorite should not
be put forward before answering the questions:
-does the norm apply to this case? (obviously not for type 3 which by
Pierre Rochette a écrit:
the inference this is an anomalous meteorite should
not be put forward before answering the questions: ...
Bonjour Pierre, hello List,
I absolutely concur and that's why I cautiously spoke of exceptions
to the rule instead of using a designation like anomalous
Hello Bernd and list,
Glad to see that my question has drawn some discussion and especially happy
to see Bernd answered.
I'm not suprised to see wide ranges of fayalite within type 3 chondrites as
those have not been homogenized and it would actually be expected that some
rather extreme values
Hello Pierre, Bernd, and list,
The statement that Burnwell is anomolous is based on much more than just its
low fayalite value.
Looking at pyroxene, olivine, iron, nickel, and numerous other values you
will see that Burnwell is much more reduced than normal H chondrites.
Understandably, type 3's
Hello all again,
For those of you who have the new Encyclopedia of Meteorites by Richard
Norton and look in the appendix he has a list of the various different
classifications that was taken from a paper by Dr. Rubin at UCLA. One of
those that you don't often see is HH which is based on
There are ordinary chondrites more reduced than the H group. Burnwell is
one. Others were studied by:
Wasson J. T., Rubin A. E., Kallemeyn G. W. (1993) Reduction during
metamorphism of four ordinary chondrites. Geochim. Cosmochim. Acta 57 (8),
1867-1878.
If memory serves, some of the
Hello Jeff and List,
Another paper was later written by McCoy, Keil, Scott, Benedix, Ehlmann,
Mayeda, and Clayton, titled Low-FeO Ordinary Chondrites: A Nebular
Origin And New Chondrite Parent Body, published in the 25th LPSC, 1994.
In it they studied Wray (a), Cerro los Calvos, Willaroy,
Yes, but the Wasson paper has the final word, as the McCoy work is not
peer-reviewed.
jeff
At 08:33 PM 7/13/2002, David Weir wrote:
Hello Jeff and List,
Another paper was later written by McCoy, Keil, Scott, Benedix, Ehlmann,
Mayeda, and Clayton, titled Low-FeO Ordinary Chondrites: A Nebular
Dear List Members,
We have just finished a long term project which involved photographing many
of the major pieces in the R.A. Langheinrich Meteorite Collection, and
preparing them for our new online meteorite museum. This new and expanded
museum section replaces our old Gallery of Classic
Dear Iris,
Thank you for sharing such beautiful photographs of so many choice
specimens. You've done a wonderful job of showing the artistic
character and beauty of these space rocks. I can't believe the Cat
Mountain slice!
Regards,
Bob King
Dear List Members,
We have just finished a
11 matches
Mail list logo
