[meteorite-list] NP Article, 04-1948 Nininger and Meteor Crater
From: MARK BOSTICK <thebigcollector_at_meteoritecentral.com>
Date: Thu Apr 22 10:18:25 2004 Message-ID: <OE284Iu1B6gVs1tIzmQ00011996_at_hotmail.com> Paper: Nashua Telegraph City: Nashua, New Hampshire Date: Saturday, April 03, 1948 Science section Arizona Meteorite Census Needs Record of Souvenirs By Science Service A census of immigrants from outer space is being taken. Many of those bits of iron and stone, that fell onto our planet thousands of years ago, have been moved from Arizona's famous crater to all parts of the globe. If you have a meteorite that was collected from Canyon Diablo, or know where one is, give science a boost by reporting it to the American Meteorite Museum at Winslow, Ariz. The director, Dr. H. H. Nininger, is trying to determine the total quantity of meteoritic material that once lay in and around the crater. The crater itself is about four-fifths of a mile across. Its walls are 120 to 170 feet above the surrounding plain and the floor is 400 feet below it. Around the crater great quantites of meteoritic iron have been found, some of the pieces weighing several hundred pounds each, and one over 1400 pounds. Souvenir Hunters Enthusiastic collectors and souvenir hunters have already taken away thousands of pounds of meteoritic material - possibly as much as 60,000 pounds. Today a sample is rarely found on the surface. Electrical and magnetic detecting devices have helped locate sizable chunks buried down to two feet below the surface, and they too have been removed. In a few more years the region may be stripped entirely of meteorites. Despite persistent research throughout the years for a deeply buried meteorite that may be found in the crater, to date no sizable meteorite has been located. This has led some scientists to question its origin by impact from an enormous projectile from outer space. Field Survey Dr. Nininger is now making so extensive field survey to locate such meteorites as still remain to the surrounding plain and in the rim. Should the meteorites be found to lie in a symmetrical pattern, as explosion at the time of impact would be indicated. Random distribution of the material would suggest that it was left at the same time as the core which produced the actual crater and they were all part of the same swarm of missiles from outer space. To supplement his field survery, he is compiling a complete list of meteoritic material taken from the crater's vicinity. Those who know of the whereabouts of these meteorites are asked to report: 1. Name and location of collection, or of individual who has them. 2. Number of Canyon Diablo meteorite specimens in the collection. 3. Their total weight. 4. Individual weights of all specimens of five pounds or more. Or if you know of any nickel-iron meteorite, the source of which is not known for sure, stat eits approximate size and whereabouts. Dr. Nininger may be able to establish its identity. (Copyrighti, 1948, Science Service). Received on Tue 04 Feb 2003 11:47:59 PM PST |
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