 | | 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...and Bi-Te-bearing tennantite, with trace of native gold. Rounded pyrite grains appear fractured and corroded...heterogeneous entrapping in the two-fluid unmixing region. Sulfur isotopes of aqueous sulfide and sulfate |  | 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 |  | | 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) | | enargite-hosted fluid inclusions from the Lepanto, Philippines, high-sulfidation Cu-Au deposit * D. P....revealed in the Mankayan mineral district of northern Luzon, Philippines, where the Lepanto highsulfidation...mineralization in this environment. The ore stage at Lepanto consists of enargite-luzonite (Cu,As&), pyrite...mineralizing fluid of the Lepanto deposit. As this liquid moved to the northwest along the Lepanto fault, it was...calcite. However, in high-sulfidation deposits like Lepanto the transparent minerals are commonly late and |  | | Journal (article/letter/editorial) | | ELEMENT GEOCHEMISTRY OF ENARGITE IN THE MANKAYAN DISTRICT, PHILIPPINES C. L. DEYELL†,1,*AND J. W. HEDENQUIST2...Samples come from the Mankayan district, Philippines, which hosts the Lepanto high-sulfidation Cu-Au...enriched in Silver, Fe, and Pb in the center of Lepanto, and Zn (± Cd) is enrich the ore distal to the...orebody. Introduction The Mankayan mineral district of northern Luzon, Philippines, is one of the richest...mining districts in the Philippine archipelago. The region hosts several porphyry copper and epithermal precious |  | Manalo, Pearlyn C., Imai, Akira, Subang, Leo L., de los Santos, Mervin C., Yanagi, Kyoka, Takahashi, Ryohei, Blamey, Nigel J.F. (2018) Mineralization of the Northwest Quartz-Pyrite-Gold Veins: Implications for Multiple Mineralization Events at Lepanto, Mankayan Mineral District, Northern Luzon, Philippines. Economic Geology, 113 (7) 1609-1626 doi:10.5382/econgeo.2018.4606 | Journal (article/letter/editorial) | | QUARTZ-PYRITE-GOLD VEINS: IMPLICATIONS FOR MULTIPLE MINERALIZATION EVENTS AT LEPANTO, MANKAYAN MINERAL DISTRICT...DISTRICT, NORTHERN LUZON, PHILIPPINES Pearlyn C. Manalo,1,† Akira Imai,1,2 Leo L. Subang,3 Mervin C. de...819-0395, Japan 3 Lepanto Consolidated Mining Company, Makati City 1226, Philippines 4 Faculty of Engineering...quartz-pyrite-gold veins are situated 500 m east of the Lepanto fault in Mankayan, Luzon, Philippines. Most vein...vein mineralization is hosted by the Lepanto metavolcanic basement rocks at an elevation between 700 |  | 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) | | Carbonate-Base Metal Gold Deposit and Its Significance in the Mankayan Mineral District, Luzon, Philippines Fernando...Bureau, North Avenue, Diliman, Quezon City, Philippines [e-mail: diksajona@hotmail.com] * Department...The Victoria gold deposit is a low-sulfidation style epithermal carbonate-base metal gold deposit discovered...discovered in 1995 in the Mankayan mineral district, northern Luzon, Philippines. It occurs just south of...high-sulfidation copper-gold orebody (Lepanto enargite deposit) and a porphyry copper-gold orebody (Far Southeast |  | | 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...Northern Luzon, Philippines, is discussed. The principal ore minerals of the Lepanto copper-gold deposit...chalcopyrite, sphalerite, galena, native gold/electrum and gold-silver tellurides. Pervasive alteration...propylitic zone. The ore mineralogy of the Lepanto copper-gold deposit suggests high fS2 in the early stages |  | | 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...system. Keywords: Dizon, porphyry Cu deposit, Philippines, Luzon, fluid inclusion, hydrothermal system, sulfur...Au-rich porphyry Cu deposits in the western Luzon arc, Philippines (Bureau of Mines and Geosciences (BMG)...western flank of the Philippine Central Cordillera in northern Luzon, the Dizon deposit (Malihan, 1982, 1987; |  | 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 |  | 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...mineralized porphyry copper-gold, epithermal gold-silver and skarn gold-lead-zinc deposits. The district is |  | | Journal (article/letter/editorial) | | Magmatic-vapor expansion and the formation of high-sulfidation gold deposits: Structural controls on hydrothermal alteration...Structural geology Enargite Gold Solfatara a b s t r a c t High-sulfidation copper–gold lode deposits such as...as Chinkuashih, Taiwan, Lepanto, Philippines, and Goldfield, Nevada, formed within 1500 m of the paleosurface...fracture-controlled sulfide–sulfosalt mineral assemblages and gold–silver mineralization. The alteration as well as...condensation occurred. Sulfide Stage sulfosalt, sulfide, and gold–silver deposition then resulted from destabilization |  | | Journal (article/letter/editorial) | | were compared to those from the Western Luzon arc, Philippines, to better understand the metallogenesis...associated with porphyry Cu deposits in the Western Luzon arc contain >0.1 wt% S as SO3. Such high SO3 contents...the Western Luzon arc, from 15 Ma old tonalitic plutonic rocks of the Luzon Central Cordillera to present-day...southern Kyushu are similar to those from the Western Luzon arc. The SO3 contents of accessory apatite in the...to reflect the redox state of the magma source region or fluids encountered during magma generation. |  | | 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 |  | 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 |  | 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 |  | | 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...massivepyritic, (c) pyrometasomatic, (d) porphyry copper, (e) gold-bearingvein. The two largest chromite deposits,Masinloc...alpine-typeZambalesultramafic complexof western Luzon. The unusually high aluminacontentof the Masin...minable quantitiesof iron but carries high values in gold and zinc. Each of these depositsis in one of the |  | | Journal (article/letter/editorial) | | tlzr Plzilippines, Dilimon, Qiiezan City, 2102 Philippines, E-mail: uzqyQi-izext.nct *Carrespoiziincynu...accL>ptedDccember 2 7,2002) Abstract A rcvicw of the gold-copper, volcanogenic massivc sulfitlc and ultramafic-hostcd...adakitic magmatisin arc considcred good markers for gold-copper mineralization. Volcanogenic massivc sulfidc...these deposits havc been gcarcd in determining the gold content of the massivc sulfides. Chroinititc dcposits...deposition in the western and eastern sides of the Philippines, rcspcctively. Key words: Mineralization, magmatism |  | | Journal (article/letter/editorial) | | is known to discoveries in the geology of the Philippines which are me. The first discovery of coal in...then lignitic Minas) but not published, manuscript mine reports by beds have been found on the isl&-nd at...Spaniards. Coal, g old, copper, lead, iron., sulphur, Luzon .� ...-" • . . . • . . 18 40 There are known to...Negros, and it is believed that they C.tanduane...... Gold. 14 8 arb of important extent. In the great island...oCCllr at eight different localities, 13 32 Co.l, gold, copper. Mindoro . . . . . . • . . but no detailed |  | | Journal (article/letter/editorial) | | is known to discoveries in the geology of the Philippines which are me. The first discovery of coal in...then lignitic Minas) but not published, manuscript mine reports by beds have been found on the isl&-nd at...Spaniards. Coal, g old, copper, lead, iron., sulphur, Luzon .� ...-" • . . . • . . 18 40 There are known to...Negros, and it is believed that they C.tanduane...... Gold. 14 8 arb of important extent. In the great island...oCCllr at eight different localities, 13 32 Co.l, gold, copper. Mindoro . . . . . . • . . but no detailed |  | 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...Several high-sulfidation epithermal gold orebodies in the Mankayan Mineral District were formed in an...located in the south of the Lepanto main enargite–gold orebody. The gold-bearing epithermal quartz veins...quartz–pyrite–gold (QPG) veins. The two types of veins are mainly hosted by the Cretaceous Lepanto Metavolcanics |  | | Journal (article/letter/editorial) | | the Kingking Porphyry Copper-gold Deposit, Southeastern Mindanao, Philippines Akira Imai,1 Leilanie Osano...Geosciences Bureau Region IV, Department of Environment and Natural Resources, Iloilo, Philippines Abstract At...porphyry copper-gold deposit, Compostela Valley, south-eastern Mindanao, Philippines, bornite pods occur...Mindanao, Philippines, porphyry copper deposit. 1. Introduction The Kingking deposit is a gold-rich porphyry...south-eastern portion of Mindanao Island, the Philippines. It has a total mineable ore reserve of 353 million |  | | Journal (article/letter/editorial) | | GeosciencesBureau, North Avenue, Diliman,Quezon City, Philippines Abstract--The mining industry sector is a major...the framework of very stiff competition in the region for investments, new thrusts and directions, without...this period. Gold was a natural attraction to the Spanish colonizers who started placer gold mining in various...the development of a mine in Panay Island in 1842, and another (now the Lepanto Mining) north of Baguio...Baguio City in 1864. Renewed interest in gold by the turn of this century was marked by the brief interlude |
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