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G. O. Arnold and T. J. Griffin
Intrusions and porphyry copper prospects of the Star Mountains, Papua New Guinea (in Porphyry copper deposits of the southwestern Pacific islands and Australia)
Economic Geology and the Bulletin of the Society of Economic Geologists (August 1978), 73(5):785-795
Abstract:
The remote Star Mountains region of Papua New Guinea is a copper province containing the Mount Fubilan deposit and ten other prospects in the Tifalmin and Nong River areas. A wide range of calc-alkaline intrusions was emplaced into Jurassic to Miocene shelf sediments contemporaneously with Plio-Pleistocene thrust faulting. Copper mineralization is present in skarns and disseminated in porphyry stocks. Many of the prospects display common characteristics which may be useful for exploration: the mineralized stocks are porphyry intrusions with biotite alteration and are emplaced at or near the base of an extensive thrusted limestone unit; massive magnetite is often a major component of the mineralized skarns.
Index Terms/Descriptors:
Australasia; copper ores; economic geology; exploration; genesis; hydrothermal alteration; hydrothermal processes; intrusions; metal ores; metamorphic rocks; metasomatic rocks; metasomatism; mineral deposits, genesis; mineralization; Mount Fubilan; Nong River; ore deposits; Pacific Ocean; Pacific region; Papua New Guinea; porphyry copper; skarn; South Pacific; Southwest Pacific; Star Mountains; Tifalmin; West Pacific
Latitude & Longitude:
S10°15'00" -
S2°30'00" and
E141°00'00" -
E151°00'00" (Search for maps and images at Alexandria Digital Library)
GeoRef, Copyright 2006, American Geological Institute. Abstract, Copyright, Society of Economic Geologists
Copyright © 1978 by the GeoScienceWorld.