[meteorite-list] Polujamki/Markovka pairing: second try

From: Mr EMan <mstreman53_at_meteoritecentral.com>
Date: Fri, 5 Jan 2007 23:46:11 -0800 (PST)
Message-ID: <863587.75302.qm_at_web51015.mail.yahoo.com>

There isn't enough information to reach a conclusion.
The original masses and how they were assembled prior
to fragmentation are missing values and presently
beyond valid modeling.

However, interesting observation.

Eman


--- Thaddeus Besedin <endophasy at yahoo.com> wrote:

>
> Polujamki and Markovka fell within kilometers of
> each other and share all macroscopic petrographic
> features except for two striking differences:
> Polujamki, in photos I have found and in my
> specimen, seems to have, almost without exception, a
> much higher frequency of >3mm pools of coalesced
> Fe-Ni, as well as relatively more extensive shock
> veining/brecciation. Is this simply an observation
> made from a specific paired stone that became
> available recently? Can the amount of elemental
> metal dissemination in the original meteoroidal body
> have been bimodally segregated due to localized
> shock, contributing to the differences in trajectory
> of individual fragments of the stone as a result of
> explosive aerial fragmentation?
>
> _______Total Iron
> Content__________________________________
> Polujamki: 25.69 %
>
> http://www.crystalencounters.com.au/poluyamki.html
> Markovka: 25.48%
> http://www.minresco.com/meteor/meteor10.htm
> -Thaddeus
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Received on Sat 06 Jan 2007 02:46:11 AM PST