Helicopterborne Electromagnetic, Magnetic and Radiometric Survey- Coronation Mine, Saskatchewan
ARTHUR R. RATTEW
In conjunction with the research study of the Coronation Mine recommended by the National Advisory Committee on Research in the Geological Sciences and coordinated by the Geological Survey of Canada, Canadian Aero Service Limited performed a detailed, low-altitude airborne survey over a block of ground encompassing the .Coronation Mine. The in-phase / out-of-phase airborne electromagnetic data are compared with "horizontal-loop" ground data with reference to : size and nature of conductors detected; criteria in select 'on of targets for drilling. Information provided by Hudson Bay Mining and Smelting Company on their drilling of the numerous conductors in the area is employed in this comparison. The merits of combining a sensitive airborne magnetometer with an airborne electromagnetic unit are discussed. The magnetic data are considered very important in assessing conductors as prospects for commercial sulphida deposits in this area of numerous electromagnetic anomalies. The "Coronation" survey illustrates the value of EM in-phase measurements in detecting high-conductivity bodies and in providing diagnostic information concerning the geological nature of conductors. Radiometric records are used to aid in the positioning of conductivity and magnetic anomalies and as an aid in interpreting the nature of certain conductors.
Mots Clés:
airborne survey, Geological Survey of Canada, Hudson Bay, magnetic anomaly, scintillation counter, Canadian, Conductivity, Data, Maps, Mine, Mines, sulphide, Survey, Surveys
