He earned a Ph.D. from Princeton University in 1959 and was a professor of geology at the University of Colorado, where he began teaching ... the Pierre Shale and numerous detailed geologic maps, ...
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United States Geological Survey helicopter to fly over Northern Colorado for three monthsResidents in Northern Colorado may spot a low flying helicopter ... hula-hoop to measure small electromagnetic signals and map geologic features. The survey will allow the USGS to assess mineral ...
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