Porphyry copper deposit in Marinduque, Philippines

Names and other identifiers

Tract name Luzon Arc (western segment) (142pCu7301c)
Site status deposit

Geographic location

Country Philippines
State or province Marinduque
Geographic location 121.883333333, 13.5
Geologic map unit 121.883333333, 13.5
Nearby data

Geologic information

Deposit type Porphyry copper
Minerals anhydrite/gypsum, azurite/malachite, biotite, carbonates, chalcopyrite, chlorite, chrysocolla, copper, cuprite/tenorite, goethite/limonite, gold, hematite/specularite, magnetite, molybdenite, pyrite, sericite
Associated rocks andesite porphyry, diorite porphyry, dacite porphyry, limestone, quartz diorite porphyry, sedimentary rocks
Tectonic setting island arc

Commodity and development information

Development status Prospect
Tonnage (Mt) 50Mt
Cu grade (%) 0.5%
Mo grade (%) 0.005%
Au grade (g/t) 0.03g/t
Ag grade (g/t) 1.3g/t
Contained copper 250,000t
Gold-Moly ratio 6

Reference information

Comments Exposed.
Study area name East and Southeast Asia
References Saegart and Lewis (1976); Sillitoe and Gappe (1984); Singer and others (2008)
Site reference Hammarstrom and others (2014)
Saegart, W.E., and Lewis, D.E., 1976, Characteristics of Philippine porphyry copper deposits and summary of current production and resources: AIME Annual Meeting, February 22–26, 1976, Las Vegas, Preprint No. 76–1–79, 46 p.
Sillitoe, R.H., and Gappe, I.M., Jr., 1984, Philippine porphyry copper deposits—Geologic setting and characteristics: Committee for Co-ordination of Joint Prospecting for Mineral Resources in Asian Offshore Areas (CCOP), CCOP Technical Publication 14, 89 p.
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