Aisasjur Gold/Copper Project

Porphyry copper prospect in Papua, Indonesia

Names and other identifiers

Tract name Western Medial New Guinea Magmatic Belt (142pCu7203)
Site status prospect

Geographic location

Country Indonesia
State or province Papua
Geographic location 132.854, -1.226
Geologic map unit 132.854, -1.226
Nearby data

Geologic information

Deposit type Porphyry copper
Age determination method Geologic inference
Age range Pliocene
Age reference geologic inference
Minerals bornite, chalcopyrite, magnetite
Tectonic setting postconvergence
Stratigraphic age Pliocene

Commodity and development information

Development status Prospect
Major commodities Cu, Au
Trace commodities As, Sb
Gold-Moly ratio -9999

Reference information

Comments Blind porphyry copper-gold target; drilling (13 holes) intersected low-grade epithermal Au-As-Sb and at depth (from 712 m downhole), potasically altered diorite porphyry with quartz-magnetite-chalcopyrite stockwork and breccia; disseminated chalcopyrite and bornite; also magnetite-destructive argillic alteration. Drill targets based on magnetic anomalies. Drilled intercepts: 13 m at 0.21% Cu, 0.51 g/t Au from 561 m downhole; 192.8 m at 0.13% Cu, 0.19 g/t Au from 698.2 m downhole. Age based on reported ages for associated igneous rock (Malaihollo and others, 2002). Location based on exploration maps. Bird's Head Area. Exploration.
Study area name Southeast Asia and Melanesia
References Arc Exploration Ltd. (2009b); Arc Exploration Ltd. (2010a); Malaihollo and others (2002)
Site reference Hammarstrom and others (2013)