Mount Kren

Porphyry copper prospect in Manus, Papua New Guinea

Names and other identifiers

GMRAP ID 548
Tract name Outer Melanesian Arc I - Papua New Guinea (009pCu7207)
Site status prospect

Geographic location

Country Papua New Guinea
State or province Manus
Geographic location 146.95, -2.116667
Geologic map unit 146.95, -2.116667
Nearby data

Geologic information

Deposit type Porphyry copper
Age (Ma) 14Ma
Age determination method unknown
Age range 15–12 Ma
Age reference Singer and others (2008)
Minerals alunite, bornite, chalcopyrite, kaolinite, magnetite, pyrite, sericite, sulfur, zeolite
Associated rocks breccia,basalt, tuffaceous sediments, limestone, andesite, andesite porphyry, diorite, diorite porphyry, monzonite porphyry
Tectonic setting island arc
Stratigraphic age Miocene

Commodity and development information

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

Reference information

Comments Trench samples: 120 m at 0.12% Cu including 25 m at 0.3%; rock chip assay greater than or equal 0.6 g/t Au and greater than or equal 2.5% Cu.
Study area name Southeast Asia and Melanesia
References Jaques and Webb (1975); Mason and McDonald (1978); Rogerson and McKee (1990); Rogerson and others (1986); Triple Plate Junction PLC (2006); Singer and others (2008)
Site reference Hammarstrom and others (2013)
Jaques, A.L., and Webb, A.W., 1975, Geochronology of porphyry copper intrusives from Manus Island, Papua New Guinea: Geological Survey of Papua New Guinea Report 75/5, 10 p.
Mason, D.R., and McDonald, J.A., 1978, Intrusive rocks and porphyry copper occurrences of the Papua New Guinea– Solomon Islands region–A reconnaissance study: Economic Geology, v. 73, p. 857–877. (Also available at http://dx.doi.org/10.2113/gsecongeo.73.5.857.)
Rogerson, R., and McKee, C., 1990, Geology, volcanism and mineral deposits of Papua New Guinea, in Hughes, F.E., ed., Geology of the mineral deposits of Australia and Papua New Guinea: Melbourne, Australasian Institute of Mining and Metallurgy Monograph 14, p. 1689–1701.
Rogerson, R., Williamson, A., and Francis, G., 1986, Recent advances in the knowledge of geology, energy resources and metallogenesis of Papua New Guinea since 1981, in Regional Congress on Geology, Mineral and Energy Resources of Southeast Asia, 5th, Kuala Lumpur, Malaysia, April 9–13, 1984, GEOSEA V Proceedings, v. 2: Geological Society Malaysia Bulletin 20, 1986, p. 23–37.
Singer, D.A., Berger, V.I., and Moring, B.C., 2008, Porphyry copper deposits of the world—Database and grade and tonnage models, 2008: U.S. Geological Survey Open-File Report 2008-1155, [45] p. and digital data, accessed December 31, 2013, at http://pubs.usgs.gov/of/2008/1155/.Triple Plate Junction PLC, 2006, Annual report and accounts, 28 p.: Triple Plate Junction PLC Web page accessed January 15, 2010, at http://www.tpjunction.com/download.php?ddmId=36.