[meteorite-list] Re: Frass Rock and Michael Moore
From: Ron Baalke <baalke_at_meteoritecentral.com>
Date: Thu Apr 22 09:37:33 2004 Message-ID: <200012081827.KAA11940_at_zagami.jpl.nasa.gov> > > Hi, all - > > Yes, I did deal with Mr. Moore and his marvellous martian meteorite. > He wrote to his congressman and senators complaining that he had > not been given a fair hearing by NASA. The complaint went to NASA > Legislative affairs, and then down to the bottom of the pecking -- me. > After several false starts, I did meet with Mr. Moore and his rock, > examined it, looked at a thin section, and studied the chemical analyses > that Mr. Moore had obtained. Putting this all together, there was no > evidence at all that the rock was a meteorite, or was like the SNC martian > meteorites. The report to NASA was about 33 pages. I'm looking into > whether I can get it put up on the web somewhere. The chemical analyses > part is pretty good. > Here are some excerpts from Allan's report: MARTIAN ORIGIN OF THE "FRASS ROCK" OF MR. MICHAEL MOORE, AMARILLO, TX. by Allan H. Treiman Senior Staff Scientist Lunar and Planetary Institute Houston, TX March 22, 1999 EXECUTIVE SUMMARY Mr. Michael Moore of Amarillo Texas reported to his Senators and Congressman that he possessed a meteorite from Mars, and requested that NASA study the object. His request was forwarded, through the NASA Legislative liaison officer, to Dr. Allan H. Treiman of the Lunar and Planetary Institute, TX. Dr. Treiman is an expert on martian meteorites. The object, a rounded boulder of bubbly basalt lava rock, is not a meteorite and is not from Mars. The boulder cannot be considered a meteorite as it shows no fusion crust, the glassy melted coating that develops on all rocks from space as they burn through the Earth's atmosphere. Although the known martian meteorites are basalt lava rocks (or closely related), Mr. Moore's basalt rock is not martian: it is from the Earth. This conclusion is based on chemical elemental analyses of the rock. With the available chemical data, ten distinct tests a basalt's planetary origin could be applied to Mr. Moore's basalt. None of the tests suggests that the rock formed on Mars; all of the tests show that it is similar to Earth basalts, and so must have formed on Earth. Conclusions The Frass rock cannot be considered a meteorite, in any normal sense of the term, as it shows no evidence of having come from beyond the Earth. It is not covered with a fusion crust, the melted layer that develops on rock meteorites as they pass through the Earth's atmosphere. If, indeed, the Frass Rock were a meteorite and had fallen the day before it was collected, it must show some evidence of its passage through the Earth's atmosphere. Nor does the chemical composition of the Frass Rock suggest an extraterrestrial origin. Every chemical test that could be applied is consistent with it having formed on Earth. The Frass rock cannot be considered martian, based on our current knowledge of martian basalts. No test of the Frass rock's chemical composition requires that it be martian; every test is consistent with an Earthly origin. Received on Fri 08 Dec 2000 01:27:08 PM PST |
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