Method and system for searching soluble marine sylvite based on MT

The invention relates to a method and a system for searching soluble marine sylvite based on MT. The method comprises the following steps: analyzing geological data and a potassium formation mode of apre-inspection area to obtain a potassium-containing ore bed and a potassium formation structure of the pre-inspection area; arranging an MT sounding profile in the pre-inspection area to carry out electromagnetic data acquisition and inversion according to the potassium-containing ore layer, and obtaining a resistivity profile diagram; determining the electrical characteristics of the stratum ofthe pre-investigation area according to the physical property data of the pre-investigation area or the MT logging side sounding; combining geological data to comprehensively interpret a resistivitycross-section diagram according to the electrical characteristics, and determining a resistance abnormal transition zone as a potassium-containing ore bed marker zone; determining the structure of thepotassium-bearing ore bed m