Botilao

Porphyry copper deposit in Kalinga, Philippines

Names and other identifiers

GMRAP ID 485
Tract name Luzon Arc (Central Cordillera segment) (142pCu7301b)
Site status deposit

Geographic location

Country Philippines
State or province Kalinga
Geographic location 121.01, 17.3
Geologic map unit 121.01, 17.3
Nearby data

Geologic information

Deposit type Porphyry copper
Minerals biotite, bornite, chalcocite, chalcopyrite, chlorite, covellite, galena, gold, magnetite, molybdenite, pyrite, sericite, silver, sphalerite
Associated rocks dacite porphyry, andesite porphyry, andesite, basalt
Tectonic setting island arc

Commodity and development information

Development status Prospect
Major commodities Cu, Au
Tonnage (Mt) 82Mt
Cu grade (%) 0.52%
Au grade (g/t) 0.19g/t
Contained copper 430,000t
Gold-Moly ratio -9999

Reference information

Comments Exploration 1973–1975.
Study area name East and Southeast Asia
References Almogela (1974); Sillitoe and Gappe (1984); Singer and others (2008)
Site reference Hammarstrom and others (2014)
Almogela, D.H., 1974, Geologic environment and economic possibilities of porphyry copper deposits in the Philippines: Geological Society of the Philippines Journal, v. 28, no. 3, p. 1–16.
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 http://pubs.usgs.gov/of/2008/1155/.