 | | Journal (article/letter/editorial) | | Hydrothermal System at the Dizon Porphyry Cu-Au Deposit, Zambales, Philippines Akira IMAI* Department of...system at the Dizon porphyry Cu-Au deposit in western central Luzon, Zambales, Philippines, is documented...stockwork amethystic quartz veinlets associated with chalcopyrite, bornite, magnetite and Au enveloped by chlorite...quartz veinlets with chalcopyrite and pyrite associated with Au and chalcopyrite and pyrite stringers...associated with advanced argillic alteration. Chalcopyrite and bornite associated with magnetite in quartz |  | | Journal (article/letter/editorial) | | to porphyry Cu-Au mineralization at the Dizon mine, Philippines William P. Midea1 | Keiko Hattori1 |...Sciences, University of the Philippines Diliman, Quezon City, Philippines Correspondence William P. Midea...Engineering Research Council of Canada Abstract The Dizon Au-rich porphyry Cu deposit, 0.67 Mt Cu and 174...of plagioclase phenocrysts. Parental magmas at Dizon were oxidized, above FMQ + 2.0, and water-rich,...opacitic bands of amphibole in the diorite porphyry at Dizon reflects the release of aqueous fluids from the |  | | Journal (article/letter/editorial) | | Southeast Porphyry Cu-Au Deposit, Mankayan, Philippines Akira IMAI Abstract: The Lepanto Far Southeast...enargiteluzonite Cu-Au deposit in Mankayan, Benguet Province, Philippines. The principal orebody consists of potassic...associated with quartz-anhydrite stockworks are chalcopyrite and pyrite with minor bornite and Bi-Te-bearing...infilling in the interstices between clasts. Chalcopyrite-Au mineralization associated with molybdenite...heterogeneous entrapping in the two-fluid unmixing region. Sulfur isotopes of aqueous sulfide and sulfate |  | | Book (volume) | | Book Vol. 6 MINERAL DEPOSITS OF JAPAN AND THE PHILIPPINES r QE 304 . A14 1992 v.6 The Society of Resource...Book Vol. 6 MINERAL DEPOSITS OF JAPAN AND THE PHILIPPINES The Society of Resource Geology Nogizaka building...Volume 6 : Mineral Deposits of Japan and the Philippines Editors: Tetsuro Urabe and Masahiro Aoki The...Honshu 4. Mineral Deposits of Japan and the Philippines (* in Japanese) Nos. 1 - 3 are published as Guidebook...Volume 6: Mineral Deposits of Japan and the Philippines. The publications of these volumes are supported |  | | 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...bornite and chalcopyrite with traces of calaverite. The d34S of bornite and subordinate chalcopyrite of bornite...associated with quartz veinlets such as bornite and chalcopyrite ranging from -4.7â° to â«Ÿ0.0â°. This suggests that |  | | Journal (article/letter/editorial) | | mineral assemblage is discussed. Bornite and chalcopyrite are major copper ore minerals associated with...bornite, digenite, chalcocite and chalcopyrite, âBâ veinlets having chalcopyrite± bornite along vuggy center-line...center-line, rare âCâ chalcopyrite-quartz veinlets, and late âDâ veinlets consisting of massive pyrite and...are thought to be chalcopyrite + bornite solid solution (bnss) for the chalcopyrite-bearing assemblage...chalcocite-digenite solid solution and bnss for the chalcopyrite-free assemblage. Keywords: Batu Hijau, porphyry |  | | Journal (article/letter/editorial) | | mineralization: evidence from Mount Pinatubo, Philippines, and Bingham Canyon, Utah, USA Received: 15 April...Springer-Verlag 2001 Abstract Mount Pinatubo in the Philippines, known for its cataclysmic eruption in 1991,...porphyry copper systems, including that at the Dizon deposit on the ÂŻank of the volcano. Close monitoring...located in the Bataan arc in western Luzon Island, Philippines (Fig. 1a). This arc contains several young...1a; Sillitoe and Gappe 1984; Malihan 1987). The Dizon deposit, 14 km from the present summit, was mined |  | Cirineo, Avriel Venis L., Imai, Akira, Takahashi, Ryohei, Baluda, Redempta P., Oliveros, Noel C., Maglambayan, Victor B., Luis, Roy Ronald C., Faustino, Maria Lourdes M., Almadin, Jacky (2021) Overprinting
porphyryâtype
veinlets on the intrusive rocks and phreatomagmatic breccias in the Southwest prospect, southwestern Sto. Tomas
II
(Philex), Baguio District, Philippines. Resource Geology, 71 (1). 1-40 doi:10.1111/rge.12242 | Journal (article/letter/editorial) | | southwestern Sto. Tomas II (Philex), Baguio District, Philippines Avriel Venis L. Cirineo1 | Akira Imai2 | Ryohei...Division, Philex Mining Corporation, Mandaluyong, Philippines Correspondence Avriel Venis L. Cirineo, Graduate...deposit in the Baguio District, northwestern Luzon, Philippines. The Southwest prospect hosts a copper-gold...Elevated copper and gold grades correspond to (a) chalcopyriteâbornite assemblage in the potassic alteration...veinlets and (b) chalcopyrite-rich mineralization associated with the chalcopyriteâmagnetiteâ chlori |  | | 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...diorite, intrusive rocks, Kingking, Mindanao, Philippines, porphyry Cu-Au deposit. 1. Introduction As...south-eastern portion of Mindanao Island, the Philippines. It has a total mineable ore reserve of 353 million |  | | Journal (article/letter/editorial) | | Emerging Porphyry District in Northeast Mindanao, Philippines* David P. Braxton,1,2,â ,** David R. Cooke,1,3...American Exploration (Philippines) Inc., 21 Outlook Drive, Baguio City 2600, Philippines Abstract The Boyongan...the Surigao district of northeast Mindanao, Philippines. Since their formation in the early Pleistocene...4 veins consist of massive bornite-chalcopyrite and chalcopyrite-pyrite with K-feldspar halos. Stage...illite alteration, in association with pyrite, chalcopyrite, and tetrahedrite-tennantite, developed in narrow |  | | Journal (article/letter/editorial) | | Porphyry copper deposits account for 60% of the world's mine production of copper and constitute 80% of ore reserves...Bering (pers. commun., 1980), Bering (1984) Philippines 9. Dizon Silltoe and Gappe (1984); Malihan (1987)...Schwartz, 1984), Tangse (van Leeuwen et al., 1987) Philippines: Marcopper (Loudon, 1976),2 Santo Nino (Bryner...1982), San Manuel-Kalamazoo (Titley and Hicks, 1966; Lowell and Guilbert, 1970; Kesler, 1973) ,2 San Xavier...Typical horizontal alteration patterns show a central potassic zone that passes outward into sericitic |  | Frias, Sofia Marah P., Imai, Akira, Takahashi, Ryohei, BalangueâTarriela, Ma. Ines Rosana, Arcilla, Carlo, Blamey, Nigel (2019) Geology, Alteration, and Mineralization of the Kay Tanda Epithermal Gold Deposit, Lobo, Batangas, Philippines. Resource Geology, 69 (4) 351-384 doi:10.1111/rge.12205 | Journal (article/letter/editorial) | | Tanda Epithermal Gold Deposit, Lobo, Batangas, Philippines SoïŹa Marah P. FRIAS,1 Akira IMAI,2 Ryohei TAKAHASHI...Institute of Geological Sciences, University of the Philippines Diliman, 4Philippine Nuclear Research Institute...Department of Science and Technology, Quezon City, Philippines and 5Department of Earth Sciences, Western University...the Batangas Mineral District in southern Luzon, Philippines. This study aims to document the geological... 1. Introduction Epithermal deposits in the Philippines are primarily related to magmaticâhydrothermal |  | 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-...porphyry and epithermal Cu-Au deposits in the Central 6 Cordillera Range and southernmost of Cagayan |  | Imai, Akira, Shinomiya, Jumpei, Soe, Maung Thiha, Setijadji, Lucas Donny, Watanabe, Koichiro, Warmada, I Wayan (2007) Porphyry-Type Mineralization at Selogiri Area, Wonogiri Regency, Central Java, Indonesia. Resource Geology, 57 (2) 230-240 doi:10.1111/j.1751-3928.2007.00019.x | Journal (article/letter/editorial) | | Mineralization at Selogiri Area, Wonogiri Regency, Central Java, Indonesia Akira Imai1, Jumpei Shinomiya1...The Selogiri area, situated in Wonogiri regency, Central Java, is one of several gold prospecting areas...The Selogiri area, situated in Wonogiri regency, Central Java, is one of several gold prospects in the Southern...Range in Central Java. The Southern Mountain Range is situated in the present-day fore-arc region between...Fig. 2 Physiographic map of the geologic province of central and eastern Java, Indonesia, as well as distribution |  | Braxton, D. P., Cooke, D. R., Ignacio, A. M., Rye, R. O., Waters, P. J. (2009) Ultra-Deep Oxidation and Exotic Copper Formation at the Late Pliocene Boyongan and Bayugo Porphyry Copper-Gold Deposits, Surigao, Philippines: Geology, Mineralogy, Paleoaltimetry, and their Implications for Geologic, Physiographic, and Tectonic Controls. Economic Geology, 104 (3) 333-349 doi:10.2113/gsecongeo.104.3.333 | Journal (article/letter/editorial) | | Bayugo Porphyry Copper-Gold Deposits, Surigao, Philippines: Geology, Mineralogy, Paleoaltimetry, and their...American Exploration (Philippines) Inc. 21 Outlook Drive Baguio City, Philippines 2600 Abstract The Boyongan...the Surigao district of northeast Mindanao, Philippines. Exhumation and weathering of these Late Pliocene-age...â5.7 per mil. At the latitude of the southern Philippines, this value corresponds to Pleistocene rain water...copper. In contrast, higher hypogene pyrite/chalcopyrite ratios (2.3) at Bayugo led to greater acid production |  | Borisova, Anastassia Yu., Pichavant, Michel, PolvĂ©, Mireille, Wiedenbeck, Michael, Freydier, Remi, Candaudap, FrĂ©dĂ©ric (2006) Trace element geochemistry of the 1991 Mt. Pinatubo silicic melts, Philippines: Implications for ore-forming potential of adakitic magmatism. Geochimica et Cosmochimica Acta, 70 (14) 3702-3716 doi:10.1016/j.gca.2006.04.030 | Journal (article/letter/editorial) | | geochemistry of the 1991 Mt. Pinatubo silicic melts, Philippines: Implications for ore-forming potential of adakitic...June 15, 1991, by the Mt. Pinatubo volcano, Philippines (Bernard et al., 1996; Prouteau et al., 1999;...1993, 1996). Located south of the North Luzon AuâCu province of MioceneâPliocene age, Mt. Pinatubo is...is only 19 km north of the 2.7 Ma Dizon major CuâAu porhyry copper deposit (Malihan, 1987), and several...representative of those occurring in the North to West-Central Luzon AuâCu district. The Mt. Pinatubo dacite preserves |  | Polve, Mireille, Maury, Rene C., Jego, Sebastien, Bellon, Herve, Margoum, Ahmed, Yumul, Graciano P., Payot, Betchaida D., Tamayo, Rodolfo A., Cotten, Joseph (2007) Temporal Geochemical Evolution of Neogene Magmatism in the Baguio Gold?Copper Mining District (Northern Luzon, Philippines) Resource Geology, 57 (2) 197-218 doi:10.1111/j.1751-3928.2007.00017.x | Journal (article/letter/editorial) | | Baguio GoldâCopper Mining District (Northern Luzon, Philippines) Mireille Polve1, Rene C. Maury2, Sebastien...Institute of Geological Sciences, University of the Philippines, Quezon City and 5Philippine Council for Industry...Development-DOST, Taguig, Philippines Abstract Baguio, in the Central Cordillera of Northern Luzon, is a district...thought to reflect the progressive addition to the Luzon arc mantle wedge of incompatible elements largely...consequence of the docking of the Zambales ophiolitic terrane to Northern Luzon. Then, magmatic activity resumed |  | | Journal (article/letter/editorial) | | sediment-hostedmassivesulfidelead-zincde- recorded. The San Antonio de La Huerta pipe in posits, unconformity-typeuranium...porphyry- are not commonlyobserved.Locally, as in the San type mineralization,CopperCreek (Grimour,1977) Pedro...150 >600 Angularto sub- Absent rounded Peru San Pedro de 10 to >50% rounded Granodiorite Paleocene...Angularto locally Absent rounded El Bolsico, Chile San Francisco de Los Andes, Argentina Quartz diorite...Principalgangue Sericitic, chloritic, argillic Pyrite, chalcopyrite, pyrrhotite,magnetite, molybdenite Quartz,calcite |  | | Journal (article/letter/editorial) | | Hg deposits including Itomuka and Ryushoden in central Hokkaido and Hg and Sb mineralizations in Northeast...values of cinnabar from the Hidaka-Kitami district, central Hokkaido, including the Itomuka and Ryushoden deposits...(Yakumo, Toyotomi and Teine deposits) and eastern-central Honshu (Hachiman and Daikoku deposits). The variation...than +2 â° from southwestern Hokkaido, eastern-central Honshu and Kyushu are probably caused by contribution...values of cinnabar from the Hidaka-Kitami district, central Hokkaido, is difficult to explain at this moment |  | Imai, Akira, Ohbuchi, Yukiko, Tanaka, Takayuki, Morita, Seiya, Yasunaga, Kentaro (2007) Characteristics of Porphyry Cu Mineralization at Waisoi (Namosi District), Viti Levu, Fiji. Resource Geology, 57 (4) 374-385 doi:10.1111/j.1751-3928.2007.00031.x | Journal (article/letter/editorial) | | East deposit is characterized by the borniteâchalcopyriteâpyrite assemblage associated with traces of...West deposit is characterized by the borniteâchalcopyriteâpyrite assemblage accompanied with sheeted and...East and Waisoi West deposits, primary borniteâchalcopyriteâpyrite assemblage in the high Cu-grade zone...was deposited at the upper stability limit of chalcopyrite with respect to sulfur fugacity. Thus, the principal...Drummond, 1990). 3.2. Waisoi East deposit The central part of the Waisoi East deposit is situated in |  | Suerte, Leilanie O., Nishihara, Sho, Imai, Akira, Watanabe, Koichiro, Yumul, Graciano P., Maglambayan, Victor B. (2007) Occurrences of Ore Minerals and Fluid Inclusion Study on the Kingking Porphyry Copper?Gold Deposit, Eastern Mindanao, Philippines. Resource Geology, 57 (2) 219-229 doi:10.1111/j.1751-3928.2007.00018.x | Journal (article/letter/editorial) | | Porphyry CopperâGold Deposit, Eastern Mindanao, Philippines Leilanie O. Suerte1,2, Sho Nishihara1, Akira...Institute of Geological Sciences, University of the Philippines, Diliman, Quezon City and 4Department of Science...Science and Technology, Manila, Philippines Abstract The Kingking deposit is a gold-rich porphyry copper...deposit at the eastern Mindanao mineralized belt, Philippines. It is underlain by CretaceousâPaleogene sedimentary...mineralization. Two dominant copper minerals, bornite and chalcopyrite, which usually occur as fracture fillings, are |  | | Journal (article/letter/editorial) | | but few copper sulïŹdes such as bornite and chalcopyrite in quartz veins, as observed in SBD257. Quartz...such as bornite and chalcopyrite in spite of the depth. Bornite and chalcopyrite occur as inclusions...magnetite. On the other hand, blebs of bornite and chalcopyrite inclusions in magnetite grains, which are recognized...brought the copper sulïŹdes such as bornite and chalcopyrite to the deep part of the Batu Hijau deposit....style has been identiïŹed in the Selogiri area (Central Java) (Imai et al., 2007b). Meanwhile, there are |  | | Journal (article/letter/editorial) | | the predominant type of CuâFe sulfide, i.e., chalcopyrite or bornite. Primary magma source probably contributes...contributes to metal endowment on the province scale and in some individual deposits, but does not explain...Murakami (*) Geological Survey of Japan, AIST, Central 7, Tsukuba 305-8567, Japan e-mail: h-murakami@aist...CL CL CL BG PH Martec Loboc Refugioc Elatsite Dizon 126 23 190 972 377 495 754 3,230 700 1,168 1,710...Mongolia, MX Mexico, PG Papua New Guinea, PH Philippines, PR Puerto Rico, US United States of America |  | | Journal (article/letter/editorial) | | the Intermontane belt of British Columbia, the Philippines, Sulawesi, Papua New Guinea, Sabah and Puerto...deposits and examinations of deposits in the Philippines and Sabah, suggests that local factors related...MAMUT, Sabah SANTOTOMASIf, Philippines t4. PANGUNA,Bou(Jo(nvillels. DIZON, 15. CABANG KIRI, Sulgwes(...Alumbrera in the Faral16n Negro district, Catamarca province, northwest Argentina, an oval dacite porphyry...patches, the largest 300 x 150 m in diameter, in the central part of the potassium silicate zone exhibit intensive |  | Reich, Martin, Parada, Miguel A., Palacios, Carlos, Dietrich, Andreas, Schultz, Frank, Lehmann, Bernd (2003) Adakite-like signature of Late Miocene intrusions at the Los Pelambres giant porphyry copper deposit in the Andes of central Chile: metallogenic implications. Mineralium Deposita, 38 (7) 876-885 doi:10.1007/s00126-003-0369-9 | Journal (article/letter/editorial) | | giant porphyry copper deposit in the Andes of central Chile: metallogenic implications Received: 12 November...the Los Pelambres giant porphyry copper deposit, central Chile (32S). Located within the southern portion...Keywords Adakites Ă Giant porphyry copper deposits Ă Central Andes Introduction The genetic link between magmatism...crust (Cathles 1981; Sawkins 1990). The Andes of central Chile host some of the worldâs largest porphyry...black line), and the volcanic gap separating the Central Volcanic Zone (CVZ) and the Southern Volcanic Zone |
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