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

From: Anne Black <impactika_at_meteoritecentral.com>
Date: Wed, 15 Oct 2014 20:01:40 -0400
Message-ID: <8D1B6EB7D861417-730-2E3A6_at_webmail-m263.sysops.aol.com>

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 Bene?ov 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 Bene?ov 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. Spurn? 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 Bene?ov 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 Bene?ov 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 Spurn?, Jakub Haloda, Ji?? Borovi?ka, Luk?? Shrben?,
Patricie
Halodov?. Reanalysis of the Bene?ov 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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>
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Received on Wed 15 Oct 2014 08:01:40 PM PDT