Part 5. Plate boundary evolution in the New Guinea region: Subdivision and geochemistry of tertiary intrusive complexes from part of the New Guinea Mobile Belt

Abstract

Within the New Guinea Mobile Belt (Dow et al.,1968), orogeny reached a climax in mid-Miocene times with emplacement of calc-alkaline intrusive complexes and eruption of effusive equivalents (Page, 1971 ). The intrusive rocks have been collectively termed the 'Maramuni Diorite' (Dow et al., 1967, 1968).