[meteorite-list] Impact melted specimens or re-heated ?

[Martin Altmann]

In my humble opinion some Moraskos suffered some shock from the impact.
One can see it sometimes at he Neumann lines (a toast for the king of
Neumanns: Pilski"),
which in some specimens are twisted or jolted. Once we had a true shrapnel,
so that perhaps with the impactors of the different sices, all features of
shock and explosion may be found.
Also among Canyon Diablos you will find specimens, where the Thomson
structures* are more or less erased.
>From Gibeon we saw also examples, where the Thomson structures partially
were worn, same in a few Henburies, I know of.

*Marcin, Marcin, we must call the Thomsons now to be politically correct and
bad news for you as a patriot, if you're not a brave boy they will probably
take the Copernicus from the System, as there was an islamic savant long
time before....

Buckleboo
Martin






----- Original Message ----- 
From: "Meteoryt.net" <marcin at meteoryt.net>
To: <meteorite-list at meteoritecentral.com>
Sent: Sunday, April 17, 2005 1:00 AM
Subject: [meteorite-list] Impact melted specimens or re-heated ?


> I have different kind question about impact craters.
>
> In Morasko was found some specimens with destroyed Windmanstätten pattern
or
> only with thin 1-2 mm  recrystalized zone. Now its question, they was
> destroyed by impact ? What happend to specimens with regmaglyptes ? They
> cant be smashed by impact, becuse they are complete specimens.
>
> So if its possible that they was re-heated insine of big hot clound that
was
> make from a huge impact ? Its possible ? Anyone make this kind of research
> on Canyon Diablo specimens ?