Application of magnetic and gravity methods to the exploration of sodium sulfate deposits, case study: Garmab mine, Semnan, Iran

Three-dimensional inversion of potential field data was applied to the residual data, leading to a petrophysical model of the magnetic susceptibility and density contrast of sought salt rocks. We found that the ore bodies could be successfully characterized by low-susceptibility and high-density. In this paper, the susceptibility and density models from inversion are consistent with the geological and drilling data. Results of the integrated application of magnetic and gravity data can be used to delineate sodium sulfate prospects as well.