Yandera

Porphyry copper deposit in Madang, Papua New Guinea

Names and other identifiers

GMRAP ID 544
Tract name Eastern Medial New Guinea Magmatic Belt, sub-tract b (009pCu7203b)
Site status deposit

Geographic location

Country Papua New Guinea
State or province Madang
Geographic location 145.166667, -5.75
Geologic map unit 145.166667, -5.75
Nearby data

Geologic information

Deposit type Porphyry copper
Age (Ma) 7Ma
Age determination method unknown
Age range 8–6 Ma
Age reference Singer and others (2008)
Minerals anhydrite, biotite, bornite, carbonate, chalcocite, carbonate, chalcopyrite, chlorite, epidote, galena, gold, hematite/specularite, kaolinite/illite, magnetite, molybdenite, montmorillonite, pyrite, sericite, sphalerite, zeolite
Associated rocks breccia, dacite porphyry, granodiorite porphyry, quartz monzonite porphyry, tonalite porphyry, granodiorite, quartz diorite porphyry, quartz monzonite
Tectonic setting postconvergence
Stratigraphic age Miocene

Commodity and development information

Development status Prospect
Major commodities Cu
Tonnage (Mt) 1,639Mt
Cu grade (%) 0.35%
Mo grade (%) 0.01%
Au grade (g/t) 0.07g/t
Ag grade (g/t) 1.5g/t
Contained copper 5,700,000t
Gold-Moly ratio 7

Reference information

Comments Exposed. The Yandera porphyry system is in the core of the Miocene Bismarck intrusive complex within the Ramu fault zone. Tonnages and grade (2011 JORC-compliant data) reported for the lowest reported cut-off (0.20% CuEq, where CuEq is calculated as Cu+(10*Mo). Feasibility (2011).
Study area name Southeast Asia and Melanesia
References Clark (1993); Lole (2005); Marengo Mining Ltd. (2005); Marengo Mining Ltd. (2011); Titley and others (1978); Watmuff (1978); Singer and others (2008); Hyland and others (2012)
Site reference Hammarstrom and others (2013)