| | Journal (article/letter/editorial) | Systematics of the Lepanto Far Southeast Porphyry Cu-Au Deposit, Mankayan, Philippines Akira IMAI Abstract:...Abstract: The Lepanto Far Southeast porphyry Cu-Au deposit is located beneath and to the southeast of the...the Lepanto enargiteluzonite Cu-Au deposit in Mankayan, Benguet Province, Philippines. The principal orebody...heterogeneous entrapping in the two-fluid unmixing region. Sulfur isotopes of aqueous sulfide and sulfate...indicates that the bulk δ34S is about +6 ‰. Thus, the Lepanto FSE deposit is a further example which confirms | | | Journal (article/letter/editorial) | of Porphyry Cu Deposits of the Western Luzon Arc, Philippines: K-Ar ages, SO3 Contents of Microphenocrystic...the following porphyry Cu deposits in the western Luzon arc are determined: Lobo-Boneng (10.5±0.4 Ma), Santo...associated with porphyry Cu deposits in the western Luzon arc contains sulfur as SO3 detectable by electron...magmatism of the western Luzon arc, from tonalitic rocks of the Luzon Central Cordillera of about 15 Ma to an...magmatism at Mount Pinatubo. Thus, the western Luzon arc has been generating porphyry Cu mineralization | | | Journal (article/letter/editorial) | Disease in Luzonite from the Lepanto Cu-Au Deposit, Mankayan, Philippines: Further Example of Disease...paragenesis of the pyrite disease in luzonite from the Lepanto mine, a high-sulfidation (Hedenquist, 1987) or acid-sulfate...deposit at Mankayan, Benguet Province, northern Luzon, Fig. 1 Geologic outline map around the Lepanto deposit...deposit. Philippines (Fig. 1) (Imai, 1943; Gonzalez, 1956; Garcia, 1991; Hedenquist et al., 1998) is going...high-sulfidation type epithermal, Lepanto deposit 2. Geologic Background The Mankayan district is located north | | | Journal (article/letter/editorial) | the Dizon Porphyry Cu-Au Deposit, Zambales, Philippines Akira IMAI* Department of Earth and Planetary...porphyry Cu-Au deposit in western central Luzon, Zambales, Philippines, is documented in terms of mineral paragenesis...stringers in sericite alteration, 3) stringer quartz veinlets associated with molybdenite in sericite alteration...inclusions in veinlet stockwork quartz enveloped in sericite alteration (stage 2) consist mainly of gas-rich...system. Keywords: Dizon, porphyry Cu deposit, Philippines, Luzon, fluid inclusion, hydrothermal system, sulfur | | Arellano, Creszyl Joy J., Armada, Leo T., Dimalanta, Carla B., Queaño, Karlo L., Andal, Eric S., Yumul, Graciano P. (2021) Interpretation of ground magnetic data in Suyoc, Mankayan Mineral District, Philippines. Resource Geology, 71 (4) 363-376 doi:10.1111/rge.12270 | Journal (article/letter/editorial) | ground magnetic data in Suyoc, Mankayan Mineral District, Philippines Creszyl Joy J. Arellano1 | Leo...Science, University of the Philippines - Diliman, Quezon City, Philippines 2 Department of Environmental...Quezon City, Philippines 3 Itogon-Suyoc Resources Inc., Suyoc, Mankayan, Benguet, Philippines Abstract...Ground magnetic surveys conducted in Suyoc, Mankayan, Benguet led to the delineation of features related...porphyry prospect. Cordillera Exploration Company, Inc., BGC, Taguig City, Philippines School of Environmental | | Sajona, Fernando G., Izawa, Eiji, Motomura, Yoshinobu, Imai, Akira, Sakakibara, Hiroyuki, Watanabe, Koichiro (2002) Victoria Carbonate-Base Metal Gold Deposit and Its Significance in the Mankayan Mineral District, Luzon, Philippines. Resource Geology, 52 (4) 315-328 doi:10.1111/j.1751-3928.2002.tb00142.x | Journal (article/letter/editorial) | and Its Significance in the Mankayan Mineral District, Luzon, Philippines Fernando G. SAJONA, Eiji IZAWA*...Bureau, North Avenue, Diliman, Quezon City, Philippines [e-mail: diksajona@hotmail.com] * Department...discovered in 1995 in the Mankayan mineral district, northern Luzon, Philippines. It occurs just south of...of a high-sulfidation copper-gold orebody (Lepanto enargite deposit) and a porphyry copper-gold orebody...ages from 1.6 to 1.1 Ma, similar to ages of the Lepanto enargite deposit. Mineralogical, geochemical, fluid | | Chang, Zhaoshan, Hedenquist, Jeffrey W., White, Noel C., Cooke, David R., Roach, Michael, Deyell, Cari L., Garcia, Joey, Gemmell, J. Bruce, McKnight, Stafford, Cuison, Ana Liza (2011) Exploration Tools for Linked Porphyry and Epithermal Deposits: Example from the Mankayan Intrusion-Centered Cu-Au District, Luzon, Philippines*. Economic Geology, 106 (8) 1365-1398 doi:10.2113/econgeo.106.8.1365 | Journal (article/letter/editorial) | Deposits: Example from the Mankayan Intrusion-Centered Cu-Au District, Luzon, Philippines* ZHAOSHAN CHANG,1,†...260, Ottawa, Ontario, Canada K1S5P5 3 P.O. 4 Lepanto 5 Geology Box 5181, Kenmore East, Queensland 4069...Company, 21st Fl., BA-Lepanto Bldg., 8747 Paseo de Roxas, 1126, Makati City, Philippines and Metallurgy,...Australia Abstract The Mankayan mineral district of northern Luzon, Philippines, hosts several significant...the Far Southeast porphyry Cu-Au deposit, the Lepanto high sulfidation epithermal Cu-Au deposit, the | | | Journal (article/letter/editorial) | the Lepanto Copper and Gold and the Victoria Gold Deposits, Mankayan Mineral District, Philippines Rene...minerals of the Lepanto epithermal copper-gold deposit and the Victoria gold deposit, Mankayan Mineral District...District, Northern Luzon, Philippines, is discussed. The principal ore minerals of the Lepanto copper-gold deposit...to propylitic zone. The ore mineralogy of the Lepanto copper-gold deposit suggests high fS2 in the early...the Victoria quartz-gold-base metal veins on the Lepanto coppergold veins manifest the late introduction | | Deng, Jianghong, Yang, Xiaoyong, Zhang, Li-peng, Duan, Liuan, Mastoi, Abdul Shakoor, Liu, He (2020) An overview on the origin of adakites/adakitic rocks and related porphyry Cu-Au mineralization, Northern Luzon, Philippines. Ore Geology Reviews, 124. 103610pp. doi:10.1016/j.oregeorev.2020.103610 | Journal (article/letter/editorial) | related porphyry CuAu mineralization, Northern Luzon, Philippines Jianghong Deng, Xiaoyong Yang, Li-peng Zhang...related porphyry Cu-Au mineralization, Northern Luzon, Philippines, Ore Geology Reviews (2020), doi: https://doi...related porphyry Cu-Au mineralization, Northern Luzon, Philippines Jianghong Deng1-4, Xiaoyong Yang4*, Li-peng...rocks. Northern 4 Luzon is one of the most Cu-Au enriched areas in the Philippines, which develops Late-...epithermal Cu-Au deposits in the Central 6 Cordillera Range and southernmost of Cagayan Valley Basin | | | Journal (article/letter/editorial) | 40Ar/39Ar Geochronology of the Baguio District, Philippines PATRICK J. WATERS,1 DAVID R. COOKE,2,† RENE I...DAVID PHILLIPS3 1 Anglo American Exploration Philippines Inc., 1101 Pearlbank Centre Building, 146 Valero...Salcedo Village, Makati City, Metro Manila, Philippines 2 CODES, the Australian Research Council’s...district is located in the Central Cordillera of northern Luzon, Philippines. It contains numerous mineralized...Trench beneath northern Luzon produced a major batholith, the Central Cordillera Intrusive Complex, which | | Cooke, D. R., Deyell, C. L., Waters, P. J., Gonzales, R. I., Zaw, K. (2011) Evidence for Magmatic-Hydrothermal Fluids and Ore-Forming Processes in Epithermal and Porphyry Deposits of the Baguio District, Philippines. Economic Geology, 106 (8) 1399-1424 doi:10.2113/econgeo.106.8.1399 | Journal (article/letter/editorial) | and Porphyry Deposits of the Baguio District, Philippines DAVID R. COOKE,1,† CARI L. DEYELL,1,* PATRICK...7001, Australia 2 Anglo American Exploration Philippines Inc., 1101 Pearlbank Centre Building, 146 Valero...Salcedo Village, Makati City, Metro Manila, Philippines Abstract The Baguio district contains a diverse...plate and the Scarborough Ridge beneath northern Luzon over the past 3 m.y. Rapid uplift and exhumation...mineralization was a common phenomenon in this region, and contributed significantly to its rich metal | | Queaño, Karlo L., Ali, Jason R., Aitchison, Jonathan C., Yumul, Graciano P., Pubellier, Manuel, Dimalanta, Carla B. (2008) Geochemistry of Cretaceous to Eocene Ophiolitic Rocks of the Central Cordillera: Implications for Mesozoic-Early Cenozoic Evolution of the Northern Philippines. International Geology Review, 50 (4) 407-421 doi:10.2747/0020-6814.50.4.407 | Journal (article/letter/editorial) | Central Cordillera: Implications for Mesozoic–Early Cenozoic Evolution of the Northern Philippines KARLO...Institute of Technology, Intramuros, Manila, Philippines JASON R. ALI, JONATHAN C. AITCHISON, Department...Science, University of the Philippines, Diliman, Quezon City, Philippines and Department of Science and...and Technology, Bicutan, Taguig, Philippines MANUEL PUBELLIER, CNRS and Laboratoire de Geologie, Ecole...University of the Philippines, Diliman, Quezon City, Philippines Abstract The Central Cordillera in northern | | | Journal (article/letter/editorial) | Far Southeast Porphyry and Lepanto Epithermal Cu–Au Deposits, Philippines Jeffrey W. HEDENQUIST,1,2 Antonio...porphyry system, Philippines, includes the FSE Cu–Au porphyry deposit, the Lepanto Cu–Au high-sulfidation...intrusive complex of dioritic composition. The Lepanto and FSE deposits are genetically related and both...stage 1 alteration (deep FSE potassic, shallow Lepanto advanced argillic-silicic, both at ~1.4 Ma), followed...mineral deposition within the FSE porphyry and the Lepanto epithermal deposits occurred during stage 2. We | | | Journal (article/letter/editorial) | lode deposits such as Chinkuashih, Taiwan, Lepanto, Philippines, and Goldfield, Nevada, formed within 1500...used to distinguish them from so-called adularia–sericite type precious and base deposits that, with a frequent...later discussion – Chinkuashih, Taiwan, Lepanto, Philippines, and Goldfield, Nevada – we show that while...astride a collisional plate boundary where the Luzon arc of the Philippine Sea plate obliquely collides...m (Huang, 1960). 2.1.2. Lepanto, Mankayan district, Philippines The Lepanto high-sulfidation deposit, | | | Journal (article/letter/editorial) | tlzr Plzilippines, Dilimon, Qiiezan City, 2102 Philippines, E-mail: uzqyQi-izext.nct *Carrespoiziincynu...deposition in the western and eastern sides of the Philippines, rcspcctively. Key words: Mineralization, magmatism...on what can be expected in the Western Pacific region for a subduction-related setting. Its present-day...surrounding areas suggest that fragments of the Philippines could have come from mainland Asia, Borneo, Indonesia...exposures, the formation and evolution of the Philippines were also accompanied by mineralization. Gold | | Manalo, Pearlyn C., Subang, Leo L., Imai, Akira, los Santos, Mervin C., Takahashi, Ryohei, Blamey, Nigel J. F. (2020) Geochemistry and Fluid Inclusions Analysis of Vein Quartz in the Multiple Hydrothermal Systems of Mankayan Mineral District, Philippines. Resource Geology, 70 (1) 1-27 doi:10.1111/rge.12214 | Journal (article/letter/editorial) | Multiple Hydrothermal Systems of Mankayan Mineral District, Philippines Pearlyn C. MANALO,1 Leo L. SUBANG...Geology, Lepanto Mine Division, Lepanto Consolidated Mining Company, Makati City, Philippines and 4Department...high-sulfidation epithermal gold orebodies in the Mankayan Mineral District were formed in an environment...orebodies, which are located in the south of the Lepanto main enargite–gold orebody. The gold-bearing epithermal...types of veins are mainly hosted by the Cretaceous Lepanto Metavolcanics basement rocks, with minor veins | | | Journal (article/letter/editorial) | Vol. 64, 1969, pp. 644-666 Ore Depositsof the Philippines An Introduction Their Geology to 1 LEONID...BRYNER Abstract The geologic history of the Philippines pertinent to ore deposition covers the period...alpine-typeZambalesultramafic complexof western Luzon. The unusually high aluminacontentof the Masin...diversity of ore types than elsewherein the Philippines. At last eight porphyry copper depositsare known...depositsincludethe enargite-luzonite-telluride depositat Lepanto,localized along the intersectionof an unconformityand | | | Journal (article/letter/editorial) | System: Far Southeast-Lepanto Porphyry andEpithermal Cu-AuDeposits, Philippines JEFFREY W. HEDENQUIST...betterdemonstratedthanin the Mankayan districtof northern Luzon,Philippines, wherethe Lepantohigh-sulfidation...andanouterzoneof propylitic alteration. The chlorite-sericite alteration is cutby veinsof euhedral quartzthatlocallyfill...mica-pyrite _+chalcop)q'ite _+bornRe andhavehalosof sericite; illiteseparated fromthese haloshasagesof 1.30_+0...for nearby epithermal mineralization. Similarly, sericite and/orpyrophyllite underlying or overprinting | | | Journal (article/letter/editorial) | copper and epithermal vein deposits of adularia-sericite type develop successively under different stress...high-level stocks in the root zones of many adularia-sericite deposits suggests that circulation of the dominantly...emplacement of magmatic sills at depth and adularia-sericite type gold mineralization are genetically related...following porphyry copper mineralization, adularia-sericite epithermal gold mineralization, or continued extension...dilute acid fluids. Examples include Lepanto in the Philippines (Gonzalez, 1956; Garcia & Bongolan, 1989) | | | Book | ............... 61 , The Mankayan Mineral District, .Luzon Philippines. Artemio F Disini, Bruce M Robertson...Agua Rica Porphyry Cu-Mo-Au Deposit,Catamarca Province, Northwestern Argentina. Part 1 : Exploration...and Au deposits around the world, namely the Cordillera o f the Americas, the Asia-Pacific, the Tethyan...a deposit, but rather the engineering ability to mine on a large scale at low cost, and simultaneously...gold-copper ores o f the Baguio and Lepanto-Mankayan districts in the Philippines, which commenced operation in | | | Journal (article/letter/editorial) | Adularia-Sericite Type Hideki IMAI* Abstract: Two types of ores are recognized in the Huanzala mine, Peru...adularia-sericite type, is accompanied by pyrite body and skarn. Orthoclase (adularia), sericite and calcite...by tin, silver and tellurium minerals. Although sericite and calcite are found only at the earlier stage...acid-sulfate type separated from the adularia-sericite type by boiling in the early stage of mineralization...fo2-fs2-pH-temperature diagrams. The adularia-sericite type might correspond to the hot-water system | | | Journal (article/letter/editorial) | located in southwestern part of Sumbawa Island, Province of Nusa Tenggara Barat, Indonesia, in Sunda-Banda...world including western Pacific rim such as the Philippines (e.g., Sillitoe 239 240 A. IMAI and S. OHNO...in Figures 3 and 4, respectively (courtesy of the mine). Since the old tonalite is too small with respect...surface is original topography (courtesy of the mine). Since the old tonalite is too small with respect...surface is original topography (courtesy of the mine). Since the old tonalite is too small with respect | | | Journal (article/letter/editorial) | was demonstrated at the Lepanto-Far Southeast mineral system in the Philippines (Arribas et al., 1995;...centers correspond to the main Kasuga orebody (Kasuga mine pit) area in the south and the Mt. Sonomi area in...1999 is also shown. Elevation of bench (mL) and mine grid are shown. North in this map is magnetic north...on the northeast side of the100 m-level bench at mine grid N184 and W84 (Figs 6–7). The upper 285 m of...2000). In the Alto Peak geothermal system in Philippines, however, I/S Fig. 9 Sphalerite and galena in | | | Journal (article/letter/editorial) | different naming tradition, IS deposits in the Cordillera have been termed “Cordilleran polymetallic\base...“carbonate-base metal Au deposits” in the circum-Pacific region (e.g., Leach and Corbett, 1994; Corbett and Leach...sporadic IS deposits were also reported in Altiplano province (Noble et al., 1990) as well as central and Northern...Grancea et al., 2002), Baguio district of the Philippines and Morobe goldfield of Papua New Guinea (Sillitoe...believed that normal faults in tensional ‘basin-range’ region is favorable for the formation of multi-metallic | | | Report (chapter) | BARLEY E T A L . 130°E TAIWAN 500 Kms Luzon ~ ~ PHILIPPINES PHILIPPINE SEA PLATE Sul2 egr°s Masbate~...Baguio (including Santo Tomas lI); 4, Mankayan (including Lepanto, Far SE); 5, Isabella-Dipidio; 6, ErtsbergGrasberg;...volcanic environments. Low-sulphidation (adularia-sericite) epithermal Au deposits are characterized by alteration...alteration assemblages of quartz-adularia-sericite-carbonate formed from low temperature (150 to 300°C)...although Ladolam (Tabar-Feni-arc) and Baguio (Philippines) (Fig. 1) are huge deposits of this type (Sillitoe |
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