Reconnaissance Aeromagnetic and Radiometric data acquisition/purchase and interpretations, ground follow-up, remote & geological mapping to be follow-up with ground follow up detailed integrated geophysical, geochemically surveys with trial pits and coring, analysis and reserve estimations.
This is the broadest question I have ever seen here. Each case must define a geophysical exploration method and target. The process must be chosen based on the target. I have written papers utilizing public-domain data, but many cases require acquiring new data. Ask a specific question!!!