Original Message
[meteorite-list] Re: Rubble pile asteroids
Herbert Raab [EMAIL PROTECTED] writes:
On the other hand, the real border between a L5 and a
L4 or L6 might be more blurry than the descriptions in
the textbooks suggest. There is an interesting paper
Robert Verish writes:
that shock and weathering grades were problematic for
pairing purposes but they had no problem with petrologic
class (or metamorphic grade). In fact, they used a noble
gas isotope study to prove that all the L6 specimens were
indeed, paired to the same fall!
Of
--- Herbert Raab lt;[EMAIL PROTECTED]gt; wrote:
gt;
gt; I still think that there might be fuzzy borders
gt; between
gt; metamorphic grades, or that a small thin section
is
gt; not representative for the whole specimen.
gt;
Once again, Herbert has hit the nail square on the
head. It is a lot
Bob Verish writes:
I have described it as being a loose rubble pile of
L6, L5, and L4 meteoroids; held together by the most
minimum of gravitational attraction. How else can you
explain a strewn field of stony meteorites with such a
variation in metamorphic grade, yet NO EVIDENCE of
If possible, I would be pleased to get your opinions about my hypothesis
concerning the possible structure of some asteroids.
My idea is following :
I formulated this hypothesis after observing a fireball which occurred
during the 12th of August, 1998, during the maximum activity of perseids:
- Original Message --
[meteorite-list] Re: Rubble pile asteroids
Herbert Raab [EMAIL PROTECTED]
mailto:herbert.raab%40utanet.at
Wed, 25 Sep 2002 15:37:06 +0200
Bob Verish writes:
I have described it as being a loose rubble pile of
L6, L5, and L4 meteoroids; held
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