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Re: (meteorobs) Re: Kaigorod and brecciation
In a message dated 98-04-18 20:24:28 EDT, you write:
<< I recently obtained a beautiful brecciated sample of Kaigorod from Mike
Farmer which prompts the following question. We are assuming that the
brecciated nature of this and other meteorites is the result of impact at
some earlier time. However, the metalflake in this meteorite is relatively
evenly distributed throughout all portions of the breccia. Is this even
distribution the result of heating in the atmosphere or is there some other
explanation for its presence and even distribution? Does anyone know the
current explanation for this phenomenon? >>
According to Phillip Bagnall's book (is he here?):
"Brecciation may occur at two stages in the history of the meteorite:
1. On the parent body during crustal or mantle movements (monomict) or because
of an impact of another body (polymict).
2.while the meteoroid is in space as a result of a collision with a second
meteoroid (polymict)."
Hope this helps.
Kevin K
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