The present geophysical prospecting methods available for exploration are summarized and their possible application to Philippine deposits are discussed. It is believed that in conjunction with geochemistry and modern geological concepts, geophysical methods can be applied to a greater extent in the Philippines to: 1) quickly delimit and assess the importance of mineral occurrences and 2) guide drilling programs. Surveys showed that both the magnetic and the induced potential combined with resistivity methods proved very useful in porphyry copper, massive base metal sulfides and nickel deposits.

The average costs of geophysical surveys is summarized.