Geophysical Mapping: Problem Details Problem Name: Regional Mapping Problem Type: Regional Mapping Assigned Methods: + Aerogravity Gravity + Airbore electromagnetic methods Electromagnetic Methods + Airborne infrared thermography Thermic Methods + Airborne magnetics Magnetic Methods + Airborne spectrometry Radioactivity + Ground magnetics Magnetic Methods + Ground spectrometry Radioactivity + Land gravity Gravity + Shallow reflection seismics Seismic Techniques    '+' = Technique applicable