Barnaby, a self-contained truck-mounted unit. no date.
Summary
Album caption and index card: Barnaby, a self-contained truck-mounted unit for gamma-ray logging of diamond drill holes less than 200 feet deep. n.d. (Photo by H. Faul) Personal email communication with Doug Morrison on September 24, 2017, "Images mdm00012 to mdm00018 are not related to magnetic detectors. This is a photograph of a radiometric (gamma ray) down hole winch, cable and truck mounted logging recorder."
Summary
Album caption and index card: Barnaby, a self-contained truck-mounted unit for gamma-ray logging of diamond drill holes less than 200 feet deep. n.d. (Photo by H. Faul)
Personal email communication with Doug Morrison on September 24, 2017, "Images mdm00012 to mdm00018 are not related to magnetic detectors. This is a photograph of a radiometric (gamma ray) down hole winch, cable and truck mounted logging recorder."
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Material Request Instructions
Available in the U.S. Geological Survey Denver Library Photographic Collection, Magnetic Detectors Collection.
Rights
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