From abstract "As part of the Department of Energy (DoE) National Uranium Resource Evaluation Program, LKB Resources, Inc. has performed a rotary-wing reconnaissance high sensitivity radiometric and magnetic survey, encompassing several 1:250,000 quadrangles in southwestern Arizona and southeastern California. The surveyed area consisted of approximately 9300 line miles. The radiometric data was corrected and normalized to 400 feet terrain clearance. The data was identified as to rock type by correlating the data samples with existing geologic maps. Statistics defining the mean and standard deviation of each rock type are presented as listings in Volume I of this report. The departure of the data from its corresponding mean rock type is computed in terms of standard deviation units and is presented graphically as anomaly maps in Volume II and as computer listings in microfiche form in Volume I."

Data listings from the reduced data tapes for each of the National Topographic Map Series quadrangles (Salton Sea NI 11-9, Phoenix NI 12-7, El Centro NI 11-12, Ajo NI 12-10, Lukeville NH 12-1) to accompany the report on the reconnaissance survey. The pages document the quadrangle, survey company, survey area, year, and line number; they include single record reduced data listings and averaged record data listings.