[meteorite-list] New Met Bulletin Approvals - new Czech meteorites

From: Jan Woreczko & Wadi <ebay_at_meteoritecentral.com>
Date: Wed, 22 Feb 2012 00:32:10 +0100
Message-ID: <D42C1CD28B794E468BA6BC2712B3DF77_at_zeus>

Ha
There is no certainty, it is a fact.
Perhaps Benesov meteorite had a double lithology, such as Almahata Sitta?
The weathering grade W3 is not difficult to achieve in humid climates of
Central Europe.
Thank you for your response.
Best
Woreczko

----- Original Message -----
From: "Gary Fujihara" <fujmon at mac.com>
To: "Jan Woreczko - www.meteoritica.eu" <ebay at biol.uw.edu.pl>
Cc: <meteorite-list at meteoritecentral.com>
Sent: Tuesday, February 21, 2012 6:04 PM
Subject: Re: [meteorite-list] New Met Bulletin Approvals - new Czech
meteorites


Aloha Jan,

>From just a cursory glance at the metbull entry for Benesov (a), I would
surmise a reason for the non-fall classification is due to the fact that
much time had elapsed from the witnessed fireball on May 7, 1991 and the
actual recovery of material on April 9, 2011. Because almost twenty years
had passed, there can be no assurance that the recovered pieces are
associated with the witnessed sightings.

Additionally, Benesov (a) is an LL3.5 and Benesov (b) is an H5 and were
found on the same day 250m apart, both with a weathering grade of W3.
Characteristics are "Weathered fragments lacking fusion crust. The
meteorites resemble the terrestrial stones and slag found in the field." To
me, this implies that the recovered pieces have a terrestrial age greater
than 20 years.

gary

On Feb 21, 2012, at 6:18 AM, Jan Woreczko - www.meteoritica.eu wrote:

> Ha
> Why are these findings are not classified as a falls?
>
> Bene?ov (a) http://www.lpi.usra.edu/meteor/metbull.php?code=54854
> Bene?ov (b) http://www.lpi.usra.edu/meteor/metbull.php?code=54855
>
> http://translate.google.pl/translate?sl=pl&tl=en&js=n&prev=_t&hl=pl&ie=UTF-8&layout=2&eotf=1&u=http%3A%2F%2Fwiki.meteoritica.pl%2Findex.php5%2FBene%25C5%25A1ov
>
>
> Best wishes,
> Woreczko
>
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Gary Fujihara
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Received on Tue 21 Feb 2012 06:32:10 PM PST