[meteorite-list] Cooling rates

[E.P. Grondine]

Hi Steve, all - 

I don't think they're due to repeated collisions. 

Suppose that we have molten iron/nickle under incredible compression, which is then almost instantaneously released. 

250 parent bodies seems like a lot. Perhaps instead there was more differentiation within fewer parent bodies.

Ed

--- On Sat, 9/5/09, Steve Dunklee <sdunklee72520 at yahoo.com> wrote:

> From: Steve Dunklee <sdunklee72520 at yahoo.com>
> Subject: Re: [meteorite-list] Cooling rates
> To: meteorite-list at meteoritecentral.com, "E.P. Grondine" <epgrondine at yahoo.com>
> Date: Saturday, September 5, 2009, 10:15 PM
> Interesting idea, as railroad
> drawheads and metal presses after repeated pounding over
> many years also show stress patterns which resemble
> Widmanstatten. So could it be repeated pounding from
> collisions in addition to slow cooling which contribute to
> the variety of patterns? I really have no Idea but believe
> it possible.
> 
> http://www.materialsengineer.com/
> 
> the second pic on the right  looks like some
> widmanstattens'
> 
> have a great day
> 
> Steve
> 
> 
> 
> --- On Sat, 9/5/09, E.P. Grondine <epgrondine at yahoo.com>
> wrote:
> 
> > From: E.P. Grondine <epgrondine at yahoo.com>
> > Subject: [meteorite-list] Cooling rates
> > To: meteorite-list at meteoritecentral.com
> > Date: Saturday, September 5, 2009, 7:30 PM
> > Hi all - 
> > 
> > Could the Widmanstatten patterns simply be the result
> of
> > incredibly high compression instead?
> > 
> > E.P.
> > 
> > 
> >       
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> 
>