INVESTIGATION OF SUBSURFACE ISORAD METHODS, TEMPLE MOUNTAIN, SAN RAFAEL DISTRICT, UTAH

摘要

The subsurface isorad method is an attempt to locate areas favorable for uranium ores by the use of contour maps which show localities having greater radioactivity. The construction of isorad map3 entails the measurement of the area under the curve of a gamma-ray logo The figures obtained indicate relative amounts of gamma radiation and are used to locate the isorad contours. This work was started at Temple Mountain in the San Rafael Swell area during the spring of 1952. The purpose of this investigation is to determine the most effective and economic hole spacing for subsurface isorad work.nThe lower 45 feet of the ore-bearing Shinarump conglomerate was divided into three intervals each 15 feet thick. These intervals were considered individually and also as a composite unit. For each interval, 12 isorad maps were constructed based on varying hole patterns.