Abstract: The reasons of various characteristic magnetic anomaly are determined based on mainly magnetic variation in the detection area, and the regular anomaly contrast figures and contour abnormalities profile chart are produced which can reflect intuitively the geological characteristics, to conclude suspected faults that exist in the detection area.Compared to the interpretation of other geophysical methods, the feasibility of magnetic prospecting method in fault localization is verified with much more satisfying results achieved.

Key words: Magnetic prospecting, Fault localization, Magnetic anomaly, Magnetic survey