Online Spatial Data
Global assessment of undiscovred copper resources
Porphyry copper (Cu-Au) deposit in
Negros Oriental, Philippines
Names and other identifiers
Nabuangan-Bunkville, Basy project (Nabore, Southeast, Central, Northwest)
Age determination method
Singer and others (2008)
actinolite, anhydrite/gypsum, azurite/malachite, biotite, bornite, chalcocite, chalcopyrite, chlorite, chrysocolla, covellite, epidote, galena, gold, hematite/specularite, jarosite, magnetite, molybdenite, phlogopite, pyrite, sericite, sphalerite, tetrahedrite, zeolite
andesite porphyry, breccia, dacite porphyry, quartz diorite porphyry, monzonite porphyry, agglomerate, andesite, basalt, metavolcanic rocks, diorite
Commodity and development information
Cu, Mo, Au, Ag
Cu grade (%)
Mo grade (%)
Au grade (g/t)
Ag grade (g/t)
Exposed. Reported grades for these from Singer and others (2008). Gross inferred mineral resources of March, 2012 for four deposits: 131.1 Mt at 0.48% Cu (0.25% Cu cutoff). Rhenium is a target (grades not reported). Deposit open in all directions and at depth.
Study area name
East and Southeast Asia
Copper Development Corp. (2012); Jacinto and Hofilena (1981); Motton (2009); Saegart and Lewis (1976); Sevillano and Fernando (1981); Singer and others (2008); Vigar and others (2011)
Hammarstrom and others (2014)
Copper Development Corp., 2012, Copper Development Corp.home page: accessed April 15, 2013, at http://www.copperdevelopmentcorp.com/index.html. Jacinto, R.P., and Hofilena, W.C., 1981, Geological and structural setting of the Muhong ore bodies in Basay, Negros Oriental: Geological Society of the Philippines Journal, v. 35, no. 3, p. 113. (Abstract also available at http://www.geolsocphil.org/journal_abstracts/1981v35n3sep_1abs.htm.) Motton, Neil, 2009, Basay coppper projectA review of the mineral resources of the area: Solfotara Mining Corp., report prepared for Adanacex Resources Inc. (Philippines) and Solfotara Mining Corp. (Canada), 74 p. and graphics. (Also available at http://www.solfotaramining.com/project/basay/basayreport-mar2009.pdf.)
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 2226, 1976, Las Vegas, Preprint No. 76179, 46 p.
Sevillano, A.C., and Fernando, C.J., 1981, Secondary dispersion pattern of copper in the Basay porphyry copper deposits: Geological Society of the Philippines Journal, v. 35, no. 3, p. 1425. (Abstract also available at http://www.geolsocphil.org/journal_abstracts/1981v35n3sep_2abs.htm.) Singer, D.A., Berger, V.I., and Moring, B.C., 2008, Porphyry copper deposits of the worldDatabase and grade and tonnage models, 2008: U.S. Geological Survey Open-File Report 2008-1155,  p. and digital data, accessed December 31, 2013, at http://pubs.usgs.gov/of/2008/1155/. Vigar, A.J., Motton, N.T., and Taylor, I., 2011, Competent persons report on the Basay copper project, Negros Oriental Province, Philippines: Copper Development Corp., Report prepared by Mining Associates Ltd. for Copper Development Corp., 84 p., accessed May 15, 2012, at http://www.copperdevelopmentcorp.com/project/basayproject.html.