Geophysical Mapping: Problem Details 22 of 39 Problem Name: Location of Ancient Structures Problem Type: Cultural Heritage Assigned Methods: + DC geoelectrics - Profiling Electrical Methods + Frequency-domain electromagnetics - Profiling Electromagnetic Methods + Geoelectrics - Tomography (surface based) Electrical Methods + Ground magnetics Magnetic Methods + Ground penetrating radar (surface-based) Electromagnetic Methods + Induced polarization - Profiling Electrical Methods + Shallow reflection seismics Seismic Techniques + Time-domain electromagnetics - Profiling Electromagnetic Methods 0 Induced polarization - Tomography (surface-based) Electrical Methods    '+' = Technique applicable; '0' = Application possible/limited use