 | | 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...rims stockwork of quartz-anhydrite veinlets. Fluid inclusions found in stockwork quartz and anhydrite in...500°C. The principal ore minerals associated with quartz-anhydrite stockworks are chalcopyrite and pyrite |  | | 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 |  | 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...attributed to hydrothermally altered rock with quartz veins. The previously recognized porphyry copper |  | | 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...salinity with lower Th. Secondary fluid inclusions in quartz phenocrysts tend to have a higher average T,, and...mineralizing fluid of the Lepanto deposit. As this liquid moved to the northwest along the Lepanto fault, it was |  | | 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) | | NORTHWEST QUARTZ-PYRITE-GOLD VEINS: IMPLICATIONS FOR MULTIPLE MINERALIZATION EVENTS AT LEPANTO, MANKAYAN MINERAL...MINERAL DISTRICT, NORTHERN LUZON, PHILIPPINES Pearlyn C. Manalo,1,† Akira Imai,1,2 Leo L. Subang,3 Mervin...819-0395, Japan 3 Lepanto Consolidated Mining Company, Makati City 1226, Philippines 4 Faculty of Engineering...Northwest quartz-pyrite-gold veins are situated 500 m east of the Lepanto fault in Mankayan, Luzon, Philippines...Philippines. Most vein mineralization is hosted by the Lepanto metavolcanic basement rocks at an elevation between |  | 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 |  | | 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...early stages of silica supersaturation leading to quartz deposition. Vigorous boiling increased the pH of |  | | 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...summarized as follows; 1) stockwork amethystic quartz veinlets associated with chalcopyrite, bornite...alteration overprinting biotite alteration, 2) stockwork quartz veinlets with chalcopyrite and pyrite associated...stringer quartz veinlets associated with molybdenite in sericite alteration, and 4) WNW-trending quartz veins |  | 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...Trench beneath northern Luzon produced a major batholith, the Central Cordillera Intrusive Complex, which |  | | 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) | | lode deposits such as Chinkuashih, Taiwan, Lepanto, Philippines, and Goldfield, Nevada, formed within 1500...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,... located in the Mankayan mineral district, Luzon Island, Philippines, is analogous to Chinkuashih in |  | | 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...Au deposits) are intermediate sulfidation state quartz-carbonate-adularia-illite-base metal sulfide 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...pyrite, molybdenite,gold and silver. Secondary quartz, biotite and serfcite appear to be rather closelyassociatedwith |  | | 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) | | of Vein Quartz in the Multiple Hydrothermal Systems of Mankayan Mineral District, Philippines Pearlyn...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...the south of the Lepanto main enargite–gold orebody. The gold-bearing epithermal quartz veins in the Carmen...types: (i) the enargite-rich veins and (ii) the quartz–pyrite–gold (QPG) veins. The two types of veins |  | | 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...in the 12 37 M.rble. Romblon ......... western province called Zamboanga, on the Gulf of 12 36 Coal, g...Uoal exists in various provinces of the island of Luzon (Abra, Camarines, Bataan, Sorsogon). The finest |  | | 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...in the 12 37 M.rble. Romblon ......... western province called Zamboanga, on the Gulf of 12 36 Coal, g...Uoal exists in various provinces of the island of Luzon (Abra, Camarines, Bataan, Sorsogon). The finest |  | | Journal (article/letter/editorial) | | Copper-gold Deposit, Southeastern Mindanao, Philippines Akira Imai,1 Leilanie Osano Suerte1,2 and Sho...Geosciences Bureau Region IV, Department of Environment and Natural Resources, Iloilo, Philippines Abstract At... Compostela Valley, south-eastern Mindanao, Philippines, bornite pods occur in the brecciated parts in...diorite fragments without associated stockworks of quartz veinlets. These pods are generally elongated in...similar to the d34S of sulfides associated with quartz veinlets such as bornite and chalcopyrite ranging |  | | Journal (article/letter/editorial) | | Characteristics of Intrusive Rocks, Southeastern Mindanao, Philippines: Implication to Metallogenesis of Porphyry Copper-gold...Geosciences Bureau Region IV, Department of Environment and Natural Resources, Iloilo, Philippines Abstract This...copper deposits in south-eastern Mindanao, the Philippines, where the Kingking deposit is located. Intrusive...are hornblende diorite porphyry and hornblende quartz diorite. They are adakitic in Sr/Y-Y diagram, but...diorite, intrusive rocks, Kingking, Mindanao, Philippines, porphyry Cu-Au deposit. 1. Introduction As |
|
