[meteorite-list] Meteorite Found in Georgia
From: Ron Baalke <baalke_at_meteoritecentral.com>
Date: Tue, 27 Mar 2007 11:13:10 -0700 (PDT) Message-ID: <200703271813.l2RIDAQ01481_at_zagami.jpl.nasa.gov> http://www.aikenstandard.com/news/322877915529807.php SREL geologist works on verifying meteorite By MICHAEL W. GIBBONS Aiken Today March 27, 2007 Chris Romanek knows it's probably a wild goose chase. After all, he goes on one about once a month. Romanek, a geologist with the University of Georgia's Savannah River Ecology Laboratory, is always eager, though, because he knows each time he takes the call, there is a chance, albeit a slim one, that he finds a meteorite. The latest chase: An Aiken man awoke to a loud thump on his roof. When Romanek arrived, he quickly identified the suspect rock of being of this earth, limestone in fact, possibly courtesy of a strong-armed passerby. "It's very difficult some times when they have such high expectations and it turns out it's not a meteorite," he said. Those in the field even have a name for the suspect rocks: Meteorwrongs. True meteorite finds are rare. In fact, Romanek has only been contacted by a single person who had an actual meteorite, and he is hoping that a North Dakota potato field will provide him with a small piece of an enormous galactic puzzle. Romanek was contacted by Hephzibah, Ga., resident Karin Waycaster last year, who wanted him to inspect a rock her grandmother found in the 1970s. Decades ago, Waycaster's grandmother had been working in a potato field, sorting bad potatoes off a conveyer belt, when a 10-pound mass of dense rock came her way. It sat idle at her home for decades, and when her grandmother passed away two years ago, Waycaster came upon the object. "I said, 'What is this?' It was laying on the floor in my grandma's house, and my uncle proceeded to tell me what they thought it was," she said. The homeschool teacher used the suspected meteorite in teaching her 11- and 13-year-olds during lessons on the solar system, providing a rare prop for any school, much less a home school. "There were a lot of homeschool moms that were like, 'Wow!'" she said. When Romanek was contacted, his first order of business was to verify that the rock was in fact out of this world. He sliced a small portion off (which Waycaster retained), and sent the specimen to the Smithsonian Institute's Division of Meteorites for review. Without a doubt, the Smithsonian said, it was a meteorite. Romanek said it most likely plummeted to earth after breaking away from an asteroid belt between Mars and Jupiter. "What makes this particular one special - not only for me - it's the first one that's ever been brought to the University of Georgia that turned out to be a meteorite," he said. Romanek's next step is to do more analysis and make the meteorite official. "We now have to fully determine the meteorite's attributes for publication in a scientific journal, and then submit a request to have this meteorite named by an official governing body that recognizes meteorites," he said. (Meteorites are often named for the nearest town with a post office.) When the process of analysis and naming is complete, which could take a year more, the meteorite will be put on display at the University of Georgia. The information gleaned from the meteorite will be used by scientists - and students - to learn more about the heavens above, "This particular type of meteorite can tell us about conditions that existed in the solar system probably before our planet was even formed. So if we want to understand about the origin of our solar system, we'll study it, and with the knowledge we gain, we place that in the context of what's known about other meteorites to better understand the origin of our solar system," he said. While tons of meteorites crash to the earth each year, the vast majority land in the oceans. Scientists studying meteorites use a simple method to find them: Go where there aren't rocks. NASA missions to Antarctica each year yields hundreds of meteorites for study. That said, it is not beyond the realm of possibility that one could land in your yard. Romanek said the physical properties of the rock make it stand out. "When you pick them up, you think, this doesn't look like a normal rock," he said. Received on Tue 27 Mar 2007 02:13:10 PM PDT |
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