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"Handyman's Dream" Edeowie Railway Siding, on the way to Parachilna, Outback Flinders Ranges, South Australia
Property owner Darryl F. with a nice chunk of Edowie Glass
Edeowie Glass Floater in situ |
EDEOWIE GLASS a very mysterious and rare Impact Specimen
In the South Australian Outback between the Flinders Ranges and the salt pan of Lake Torrens, roughly 400 km north of Adelaide and about 10 - 16 km west of the ranges and approx. 30 km from one site to the other, irregular masses and flat slabs of visicular, slaglike and glassy silicate melt have been found, locally quite abundant. These slabs of melt are associated with outcrops of baked sediments exhumed by water erosion and deflation. Embedded clasts displaying shock metamorphism in quartz suggest that the thermal source must have been an impact event allthough a crater could not be located. But do we need a crater to explain a hit from a celestial body? What about an air burst like the Tunguska event? No crater has been found here either. [ On that day of June 30th in 1908 at 7:17 a.m. an explosion of such an immense force was heard in the very heart of Eastern Siberia, as if a nuclear bomb of 20 Megatons TNT equivalent exploded over the territory that is presently known to be called Evenkia. What was it? Researchers Evgeniy and Natalya Kolesnikov more than 20 years involved to solve the mystery had taken core samples of peat bogs at the site. Laboratory analysis of the 1908 peat layers compared to control samples revealed isotopic anomalities in carbon and hydrogen which after excluding all other possible environmental influences, can be assumed to have been introduced by an extraterrestrial source. Their hypothesis is that the celestial body was a small loosely packed comet-like body made up of a combination of the volatile elements H, C, O, N and S. ] EDEOWIE GLASS is from any view a very mysterious and rare Impact Specimen. Isotopic dating was undertaken by the Open University, UK, using 40Ar/39Ar laser probe. The obtained age is 0.67 ± 0.07 Ma. The glassy melt is typically black but undergoes oxidation to a red-brown material. In thin section colour can vary from black to brown to virtual colourless. The quartz grains in some visicular pieces hold a clue. They show signs of having experienced intense pressure along several different planes, a hallmark of impacts from space. . Shock metamorphism within some embedded clasts and the presence of lechatelierite also imply that the clasts have been involved in an impact process. An Australasian tektite analysed at the same time yielded an age of 0.73 ± 0.24 Ma. The ages of the Australite Tektite and the Edeowie Glass overlap. Have both been created by the same Impact? Or was the Edeowie Glass created by a large Mirror Matter Body Impact? (Refer: Detecting mirror matter on Earth via its thermal imprint on ordinary matter. http://arxiv.org/PS_cache/cond-mat/pdf/0306/0306561v1.pdf ) This EDEOWIE GLASS also looks very similar to the TRINITITE atomic Bomb Fusion Glass. You can see that onour website at http://www.rocksonfire.com/Trinitite.htm We also reccommend to read Jim Tobin's article about EDEOWIE GLASS in Meteorite Times Magazine under Jim's Fragments in December 2003: In any way, this is a very rare and mysterious Specimen not to be missed in a Meteorite or Mineral Collection!
At the search site Heike, our dog 'Missy' and our truck 'Camel-3". BTW: the flies like it out here too. |
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