Because it is located in the Western Pacific island chain, the geological structure of clutter. The district is earth's lithosphere in the clutter of the structure of the active region of, because of the influence by adjacent to the Western Pacific shell, India and Australia shell expand mutual effect since the Mesozoic and Cenozoic Asian continental margin, since the late Cretaceous goes intense scale structure magmatic activities, become primary occasions and island arc volcanic effects related to hydrothermal activity.
The special geological environment determines the Philippines is rich in mineral resources, to find ore potential is infinite, and types of metallic ore deposits belong to and basic - ultrabasic rocks related to magmatic chromium and nickel deposits, and with intermediate acidic volcanic rocks and subvolcanic rocks related to the porphyry type and massive sulfide deposits and hypabyssal epithermal gold deposit and weathered accumulation of laterite type nickel, aluminum ore.
The regional ore control structure is a large crack in Philippines, which is near to the north and south. The structure of ore controlling structure is mainly the cracking structure and volcanic organization.
Gold deposit primary production and effect is related to the magmatic activity in the subduction zone, and component from rhyolite, dacite andesite alkaline calcium is related to a high potassium calc alkaline volcanic and sub volcanic rock lithology, volcanic organization, structure crack and with hydrothermal activity is related to the fracture system is metallogenic fluid activities and deposited the advantage of the occasion and they manipulate the deposit emplacement space.
And porphyry related deposits are mainly massive sulfide copper gold deposits, which are often shallow low temperature hydrothermal gold deposits on the top. Structure of a magmatic belt along the north and South direction.
The lateritic bauxite metallogenic factor for Al rich rocks and karst cave in. Weathered broken high aluminium basic rock were transported to the adjacent karst depressions and tropical marine monsoon climate with hot and humid environment of the vegetation growth, microbial growth, microbial corrosion of rock occurrence organic acid a weak continuous leaching depression deposits, the silicon activation, migration and enrichment of iron and aluminum constitute lateritic bauxite trihydrate.