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Re: Type 3 chondrules

Hello Martin and the list,

You've been making some interesting observations of type 3 material. It
would seem to indicate that the accretion of chondritic material in the
early nebula was an ongoing process of accretion, impact, mixing and
re-accretion. The broken fragments you describe would not appear to be a
breccia as we would normally understand it, but they do imply impacts of
already accreted material being mixed in with the reservoir of
chondrules and matrix material. Given the chaotic events of the time,
it's not hard to understand.

I would enjoy receiving a copy of your photo to see the material you've
described.

Gene

Martin Horejsi wrote:
> 
> Looking at the slice in my picture, I wonder how a broken fragment could
> mesh into a chondrite region which has avoided most metamorphic processes.
> Assuming the material was brought together at about the same time, and then
> suffered the same trials afterwards, how could such perfectly formed
> chondrules be mixed with such unweathered rock fragments unless the
> fragments were floating around in the chondrule mix before it solidified
> (or turned to stone however chondrites do it).
> 
> Are there other explainations for such a heterogeneous mixture in an
> otherwise chondrule packed meteorite?  This does not look like brecciation,
> more like someone dropped a spoon into the dough, and went ahead and baked
> the bread anyway.
> 
> Martin
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