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Balak-5

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Porphyry copper deposit in Bohol, Philippines

Names and other identifiers

GMRAP ID 507
Alternate names Balisong, Jetafe
Tract name Bohol-Cebu Area (142pCu7306)
Site status deposit

Geographic location

Country Philippines
State or province Bohol
Geographic location 124.25, 10.133333334
Geologic map unit 124.25, 10.133333334
Nearby data
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Geologic information

Deposit type Porphyry copper
Minerals alunite, chalcopyrite, hematite, pyrite, malachite, cuprite, copper, neotocite, limonite, sericite, tourmaline
Associated rocks gabbro, intermediate intrusive rocks, andesite, basalt, metasedimentary rocks
Tectonic setting island arc

Commodity and development information

Development status Prospect
Major commodities Cu
Tonnage (Mt) 5Mt
Cu grade (%) 0.8%
Contained copper 40,000t
Gold-Moly ratio -9999

Reference information

Comments Reserves of supergene ore 5 Mt at 0.8% Cu. Exploration 1970–1976: ?0.43% Cu, 0.035% Mo (both over 90 m), 0.6 g/t Au.
Study area name East and Southeast Asia
References Hope (1971); Kinkel and others (1956); Sillitoe and Gappe (1984); Singer and others (2008)
Site reference Hammarstrom and others (2014)
Hope, A.R., 1971, The application of results of geochemical prospecting to a porphyry copper/molybdenum property in the Philippines: Symposium on Mineral Resources Development, 3d, Manila, November 1971, Section 1.
Kinkel, A.R., Santos-Yñigon, L.M., Sanmaniego, S., and Crispin, O., eds., 1956, Copper deposits of the Philippines: Manila, [Philippines] Bureau of Mines Special Project Series Publication 16—Copper, 305 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.