True, but it is quite rare. I cannot think of another example right off-hand. Are there any others?
-- ------------------------------------------------------------- Web - http://www.galactic-stone.com Facebook - http://www.facebook.com/galacticstone Twitter - http://twitter.com/galacticstone Pinterest - http://pinterest.com/galacticstone ------------------------------------------------------------- On 10/15/14, Anne Black <[email protected]> wrote: > Not necessarily. > For instance: All kinds of different lithologies in Almahata Sitta. > > > Anne M. Black > www.IMPACTIKA.com > [email protected] > > > -----Original Message----- > From: Galactic Stone & Ironworks <[email protected]> > To: Anne Black <[email protected]> > Cc: mike <[email protected]>; mstreman53 <[email protected]>; > meteorite-list <[email protected]> > Sent: Wed, Oct 15, 2014 6:30 pm > Subject: Re: [meteorite-list] Fw: [Geology2] Meteorite fragments > discovered 20 years after bolide event in Czech Republic > > > Another red flag - two different types in the same fall. An H5 and an > LL3.5 would suggest two different parent bodies. > > -- > ------------------------------------------------------------- > Web - http://www.galactic-stone.com > Facebook - http://www.facebook.com/galacticstone > Twitter - http://twitter.com/galacticstone > Pinterest - http://pinterest.com/galacticstone > ------------------------------------------------------------- > > On 10/15/14, Anne Black via Meteorite-list > <[email protected]> wrote: >> 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 >> [email protected] >> >> >> -----Original Message----- >> From: Michael Farmer via Meteorite-list >> <[email protected]> >> To: MEM <[email protected]> >> Cc: Meteorite Mailing List <[email protected]> >> 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 >> <[email protected]> >> 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>. >>> >>> >>> >>> . >>> >>> __,_._,___ >>> ______________________________________________ >>> >>> Visit the Archives at http://www.meteorite-list-archives.com >>> Meteorite-list mailing list >>> [email protected] >>> https://pairlist3.pair.net/mailman/listinfo/meteorite-list >> ______________________________________________ >> >> Visit the Archives at http://www.meteorite-list-archives.com >> Meteorite-list mailing list >> [email protected] >> https://pairlist3.pair.net/mailman/listinfo/meteorite-list >> >> >> >> ______________________________________________ >> >> Visit the Archives at http://www.meteorite-list-archives.com >> Meteorite-list mailing list >> [email protected] >> https://pairlist3.pair.net/mailman/listinfo/meteorite-list >> > > > ______________________________________________ Visit the Archives at http://www.meteorite-list-archives.com Meteorite-list mailing list [email protected] https://pairlist3.pair.net/mailman/listinfo/meteorite-list
