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INTERPRETATION OF AIRBORNE ELECTROMAGNETIC AND RADIOMETRIC DATA: A CASE STUDY
Abstract
Nowadays, airborne geophysical data can be obtained in low costs rapidly. Among airborne geophysical systems to acquire magnetic, electromagnetic and radiometric data, helicopter geophysical systems play an important role in exploration of mineral deposits in large areas. In general, using airborne systems to measure electromagnetic data, we can obtain two-dimensional conductivity-depth sections, and then, a threedimensional conductivity model from the subsurface of the survey area. Consequently, the lateral and vertical extents of high conductive anomalies in the area are determined. A combination of airborne electromagnetic and radiometric data can also be used for more reliable mineral exploration. Considering over-increasing development of mineral exploration in Iran and availability of airborne acquisition systems, we have acquired, and then, combined airborne electromagnetic and radiometric data from Kalateh-Reshm area in Iran, in order to determine type and location of mineralization zones in the area. The combination of these airborne electromagnetic and radiometric data indicates a relation between subsurface conductive zones, and high potassium and uranium contents in the area.
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