[meteorite-list] New Australian fall

Norbert & Heike Kammel meteorites at optushome.com.au
Fri Sep 18 18:21:33 EDT 2009


The fall actually happened in 2007, Meteoritical Bulletin:  MB 95 
<http://tin.er.usgs.gov/meteor/docs/mb95.pdf> .
I heard of it in February this year.
The location  is between Mundrabilla and Cook 001. Coordinates are  31° 
21.0'S, 129° 11.4'E, that means 168.6 km east of Mundrabilla and 170.9 
km south west of cook 001.
Unfortunately no fragments have been available for collectors.

Cheers, and best regards from Down-Under,

Norbert Kammel
IMCA # 3420


Matt Morgan wrote:
> Looks like a nice eucrite. Similar to Camel Donga.
> Matt
> ----------------------
> Matt Morgan
> Mile High Meteorites
> http://www.mhmeteorites.com
> P.O. Box 151293
> Lakewood, CO 80215 USA
>
> -----Original Message-----
> From: Darren Garrison <cynapse at charter.net>
>
> Date: Fri, 18 Sep 2009 12:51:04 
> To: <meteorite-list at meteoritecentral.com>
> Subject: [meteorite-list] New Australian fall
>
>
> http://www.smh.com.au/technology/sci-tech/rare-snapshot-of-solar-systems-dawn-20090918-fvcl.html
>
> Rare snapshot of solar system's dawn
> DEBORAH SMITH SCIENCE EDITOR
> September 19, 2009
>
> CAMERAS set up in outback Australia to track fireballs across the night sky have
> led scientists to a rare meteorite formed at the dawn of the solar system.
>
> The fiery streak it made on descent allowed them not only to pinpoint where it
> would fall on the vast Nullarbor Plain, but also work out where it had come
> from.
>
> Three fragments of the meteorite, the biggest the size of a cricket ball, were
> found within 100 metres of the predicted landing site, Alex Bevan, head of earth
> and planetary science at the Western Australian Museum, said. ''That is
> incredible accuracy.''
>
> Dr Bevan said the Nullarbor desert was chosen for a new fireball observatory
> because of its pale limestone colour. ''Most meteorites are dark so they
> contrast well with the local rock.''
>
> Dubbed Bunburra Rockhole after a nearby landmark, the meteorite was found on the
> first day of searching by the international team, which includes researchers
> from the Perth museum and CSIRO.
>
> Meteorites are among the most studied rocks on Earth, the team leader, Philip
> Bland, of the Imperial College in London, said. ''But it's really rare for us to
> be able to tell where they came from.''
>
> Based on its unusual basalt composition and trajectory, the researchers believe
> the Nullarbor meteorite was once part of an asteroid in the innermost side of
> the asteroid belt between Mars and Jupiter, until a collision chipped it off
> millions of years ago.
>
> It then moved into an orbit around the sun similar to that of Earth, before
> plummeting to the ground on July 20, 2007.
>
> Weighing about 22 kilograms when it began its fiery descent at an altitude of 60
> kilometres, only fragments of less than 200 grams were left when it hit.
>
> ''We're cautiously optimistic that this find could be the first of many, and if
> that happens, each find may give us more clues about how the solar system
> began,'' Dr Bland, whose team's study was published yesterday in the journal
> Science, said.
>
> Asteroids in the innermost belt are thought to have formed near the sun and
> consist of the same material from which the earth was made.
>
> The fireball observatory consists of a network of four cameras that take a
> single time-lapse picture every night to track any shooting stars, and complex
> mathematics is required to determine a meteorite's original orbit.
>
> ______________________________________________
> http://www.meteoritecentral.com
> Meteorite-list mailing list
> Meteorite-list at meteoritecentral.com
> http://six.pairlist.net/mailman/listinfo/meteorite-list
> ______________________________________________
> http://www.meteoritecentral.com
> Meteorite-list mailing list
> Meteorite-list at meteoritecentral.com
> http://six.pairlist.net/mailman/listinfo/meteorite-list
>
>
>   




More information about the Meteorite-list mailing list