[meteorite-list] Bediasites agree with Steve's unproven tektite theory

From: Steve Dunklee <steve.dunklee_at_meteoritecentral.com>
Date: Fri, 24 Feb 2012 15:04:45 -0800 (PST)
Message-ID: <1330124685.95097.YahooMailClassic_at_web121305.mail.ne1.yahoo.com>

Imagine? outgasing causes a spike to form on the surface of a tektite as it cools 5 miles up. then as it falls the spike breaks off to form a ring at its base. half ring or u groove ect.
cheers Steve

--- On Fri, 2/24/12, brian burrer <brimane at gmail.com> wrote:

> From: brian burrer <brimane at gmail.com>
> Subject: [meteorite-list] Bediasites agree with Steve's unproven tektite theory
> To: meteorite-list at meteoritecentral.com
> Date: Friday, February 24, 2012, 9:49 PM
> Hi list,
>
> Bediasites are well known for, among other things, these two
> traits:
>
> 1.Most Bediasites show ample evidence of abrasive transport
> and minor
> to severe smoothing of the surface.
>
> 2.Bediasites are found in/on the basal portion of the
> Manning unit of
> the Jackson formation in Texas.? They are almost never
> encountered
> "off formation".? The age of volcanic ash later/higher
> in the Manning
> is about one million years after Bediasite formation so the
> tektites
> were placed there rather soon after the event.
>
> The age of deposition of the Bediasites in the Manning would
> be about
> thirty five million years ago.? Despite the passing of
> an immense
> amount of time etching has failed to significantly alter the
> surfaces
> of the tektites.? U-grooves, V-grooves and navels all
> exist on stones
> with different amounts of ancient abrasion only slightly
> muting some
> and almost obliterating others.? If they were in an
> environment
> conducive to etching after burial Bediasites should all be
> similar to
> the Besednice hedgehog Moldavites.? The evidence
> suggests that little
> etching has occurred on most Bediasites after transport.
>
> These things taken together suggest that surface sculpture
> on
> Bediasites was a pre-existing condtion and was not developed
> by later
> etching.
>
> There is one small problem with this; the tektites did get
> some amount
> of time (less than one million years) to etch prior to their
> addition
> to the basal Manning sediments.? While it is possible
> they were
> heavily etched in their earliest years and then abrasively
> transported, it is certain they did not etch significantly
> once
> buried.
>
>
>
> Happy hunting,
> Brian
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Received on Fri 24 Feb 2012 06:04:45 PM PST