[meteorite-list] Fw: [Geology2] Meteorite fragments discovered 20 years after bolide event in Czech Republic

[Anne Black]

You could also compare them to Holbrooks, still found 100+ years after 
the fall.
And No, they don't look right.
Not buying either.


Anne M. Black
www.IMPACTIKA.com
IMPACTIKA at aol.com


-----Original Message-----
 From: Michael Farmer via Meteorite-list 
<meteorite-list at meteoritecentral.com>
To: MEM <mstreman53 at yahoo.com>
Cc: Meteorite Mailing List <meteorite-list at meteoritecentral.com>
Sent: Wed, Oct 15, 2014 5:55 pm
Subject: Re: [meteorite-list] Fw: [Geology2] Meteorite fragments 
discovered 20 years after bolide event in Czech Republic


Sorry but fake as crap, clearly ancient NWA meteorite. Pultusk stones 
are still
being 150 years after the fall and they don't even look hardly weathers 
at all,
same wet climate.
Sorry but I call a scam,
Michael Farmer

Sent from my iPad

> On Oct 15, 2014, at 4:53 PM, MEM via Meteorite-list 
<meteorite-list at meteoritecentral.com>
wrote:
>
>
> <www.sciencedaily.com/releases/2014/10/141014142736.htm>
>
> Meteorite fragments discovered 20 years after bolide event in Czech 
Republic
> Date: October 14, 2014
> Source: Astronomy & Astrophysics
> Summary: Scientists have discovered meteorite fragments 20 years 
after the
corresponding bolide
> was seen in the skies of the Czech Republic. This discovery was made 
possible
by reanalyzing the trajectory, which moved the impact line by 330 
meters.
Interestingly, the meteorites found on the ground are of
> different types, pointing to a parent asteroid of heterogeneous 
composition.
>
>
>
> ________________________________
>
>
> First three Benešov meteorites found in April 2011, with metal 
detectors. From
left to
> right: H5 chondrite of 1.56 g, LL3.5 chondrite of 7.72 g with 
achondrite
clast, and LL3.5 chondrite of 1.99 g [2].
> Credit: Image courtesy of Astronomy & Astrophysics
>
>
> Astronomy & Astrophysics is publishing the spectacular discovery of 
meteorite
fragments 20 years after the corresponding bolide was seen in the skies 
of the
Czech
> Republic. This discovery was made possible by reanalyzing the
> trajectory, which moved the impact line by 330 meters. Interestingly,
> the meteorites found on the ground are of different types, pointing 
to a
parent asteroid of heterogeneous composition.
> Collisions of meter-sized meteoroids with Earth's atmosphere are
> relatively rare, occurring about 40 times a year. They cause very
> spectacular events, known as superbolides. One of the best known such
> events, the Benešov bolide, occurred on 7 May 1991 at 23h 03m 46s UT
> over the Czech Republic. It was recorded during systematic 
photographic
> observations by the European Fireball Network and certainly ended in 
a
> multiple meteorite fall, but no meteorite was found in the weeks and
> years after the fall, despite many attempts.
> In February 2011, nearly 20 years after the event, P. Spurný and his
> colleagues [1] measured the records again and analyzed the data with
> improved methods. This led to a new picture of the whole event with a
> revised atmospheric trajectory and a new impact location. This 
allowed
> the team to recover the Benešov meteorites, 20 years after the fall,
> exactly in the newly predicted area. It is the first time a meteorite 
is found
so long after the bolide observation.
> The team found four small, highly-weathered meteorites with a total
> mass of 12 g. The probability that these four fragments come from
> different meteoroids and were found by chance at the same place is
> estimated to be 1 in 100,000 or less. Even more interestingly, these
> four meteorites are of three different mineralogical types. This 
means
> that the Benešov meteoroid was heterogeneous and contained at least
> three different types of material. After the Almahata Sitta fall, 
this
> is the second time that such a heterogeneous composition has been 
found. It
raises the possibility that a significant fraction of all asteroids
> are heterogeneous and that they were strongly reprocessed by 
collisions
> with other asteroids in the main belt.
> ________________________________
>
> Story Source:
> The above story is based on materials provided by Astronomy & 
Astrophysics.
Note: Materials may be edited for content and length.
> ________________________________
>
> Journal Reference:
>    1. Pavel Spurný, Jakub Haloda, Jiří Borovička, Lukáš Shrbený, 
Patricie
Halodová. Reanalysis of the Benešov bolide and recovery of polymict 
breccia
meteorites – old mystery solved after 20 years. Astronomy & 
Astrophysics, 2014;
570: A39 DOI: 10.1051/0004-6361/201424308
> ________________________________
>
>
> Astronomy & Astrophysics. "Meteorite fragments discovered 20 years 
after
> bolide event in Czech Republic." ScienceDaily. ScienceDaily, 14 
October
> 2014. <www.sciencedaily.com/releases/2014/10/141014142736.htm>.
>
>
>
> .
>
> __,_._,___
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