Uranium exploration technology developments under the U.S. NURE program

The U.S. National Uranium Resource Evaluation (NURE) program was initiated in 1974 to assess uranium resources in all states except Hawaii. This assessment involved a systematic program to gather and analyze aerial, surface, and subsurface data. At the outset of the NURE program, the adequacy of existing exploration and data-interpretation techniques was examined. Based upon the results of these examinations, technology development activities were conducted to improve observed shortcomings and to provide methods for enhancing the determination of favorability of geologic environments for uranium and for delineating uranium deposits. This paper summarizes the results of these activities, categorized as follows: Aerial Surveying Techniqes, Surface Exploration Techniques, Subsurface Exploration Techniques, Technology Integration, Calibration Facilities, Laboratory and Technical Support. For each category, technology development activities are described, and the new developments resulting from the period 1974-1981 are discussed. The NURE program was determinated in fiscal year 1981, and, in fiscal year 1982, most of the remaining unpublished data will be publicly released