 | | 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...quartz veinlets associated with chalcopyrite, bornite, magnetite and Au enveloped by chlorite alteration...advanced argillic alteration. Chalcopyrite and bornite associated with magnetite in quartz veinlet stockwork...initially as intermediate solid solution (iss) and bornite solid solution (bnss), respectively. Fluid inclusions |  | | 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 |  | Payot, Betchaida D., Maglambayan, Victor B., Dimalanta, Carla B., Yumul, Graciano P., Tamayo, Rodolfo A., Matsuda, Toshihiko, Suzuki, Shigeyuki, Bellon, Herve (2005) Geology and Hydrothermal Alteration of the Low Sulfidation. Resource Geology, 55 (3) 155-162 doi:10.1111/j.1751-3928.2005.tb00238.x | Journal (article/letter/editorial) | | Pantingan Gold System, Mount Mariveles, Bataan (Luzon), Philippines Betchaida D. PAYOT, Victor B. MAGLAMBAYAN...Science, University of the Philippines, Diliman, Quezon City, Philippines 1101 [e-mail: rwg@i-next.net...and Technology, Bicutan, Taguig, Metro Manila, Philippines ** Department of Earth Sciences, Faculty of Science...caldera of Mount Mariveles, Bagac, Bataan (Luzon), Philippines. It consists of nine major veins, eight of...as infillings in vugs. Calcite, marcasite and bornite are also occasionally noted in the deposit. 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...stockworks are chalcopyrite and pyrite with minor bornite and Bi-Te-bearing tennantite, with trace of native...heterogeneous entrapping in the two-fluid unmixing region. Sulfur isotopes of aqueous sulfide and sulfate...associated magmatic hydrothermal deposits in the western Luzon arc. The Lepanto Far Southeast (FSE) porphyry Cu-Au |  | | Journal (article/letter/editorial) | | Short Communication rge_098 307..313 Origin of Bornite Pods in Intrusive Rocks at the Kingking Porphyry...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 the...are composed of bornite and chalcopyrite with traces of calaverite. The d34S of bornite and subordinate |  | | Journal (article/letter/editorial) | | Cu-Fe sulfide mineral assemblage is discussed. Bornite and chalcopyrite are major copper ore minerals...with bornite, digenite, chalcocite and chalcopyrite, ‘B’ veinlets having chalcopyrite± bornite along...mineral assemblages are thought to be chalcopyrite + bornite solid solution (bnss) for the chalcopyrite-bearing...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 |  | | 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 |  | 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
porphyry‐type
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...and gold grades correspond to (a) chalcopyrite–bornite assemblage in the potassic alteration in the syn-mineralization...Indonesia (Davies et al., 2008) and Acupan, Philippines (Cooke and Bloom, 1990; Cooke et al., 1996); |  | | 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) | | Emerging Porphyry District in Northeast Mindanao, Philippines* David P. Braxton,1,2,†,** 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...and biotite. Stage 4 veins consist of massive bornite-chalcopyrite and chalcopyrite-pyrite with K-feldspar...historic Surigao Au district of the southern Philippines (Fig. 1). Recent mineral resource estimates for |  | | 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, Balangue‐Tarriela, 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 Sofia 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 magmatic–hydrothermal |  | 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...–5.7 per mil. At the latitude of the southern Philippines, this value corresponds to Pleistocene rain water...Table 1). The Boyongan porphyry Cu-Au deposit, Philippines, is a significant exception to this pattern. |  | 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, 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) | | the Waisoi East deposit is characterized by the bornite–chalcopyrite–pyrite assemblage associated with...the Waisoi West deposit is characterized by the bornite–chalcopyrite–pyrite assemblage accompanied with...Waisoi East and Waisoi West deposits, primary bornite–chalcopyrite–pyrite assemblage in the high Cu-grade...Drummond, 1990). 3.2. Waisoi East deposit The central part of the Waisoi East deposit is situated in...Cu-bearing minerals, that is, chalcopyrite and bornite as primary sulfide minerals at unweathered parts |  | 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 Copper–Gold 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 Cretaceous–Paleogene sedimentary...mineralization. Two dominant copper minerals, bornite and chalcopyrite, which usually occur as fracture |  | 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 |  | | Journal (article/letter/editorial) | | C and D veins, and the A veins contain mainly bornite, often associated with digenite and chalcocite...with magnetite, but few copper sulfides such as bornite and chalcopyrite in quartz veins, as observed in...copper sulfides such as bornite and chalcopyrite in spite of the depth. Bornite and chalcopyrite occur...later than magnetite. On the other hand, blebs of bornite and chalcopyrite inclusions in magnetite grains...deposited also brought the copper sulfides such as bornite and chalcopyrite to the deep part of the Batu Hijau |  | | Journal (article/letter/editorial) | | chalcopyrite or bornite. Primary magma source probably contributes to metal endowment on the province scale and...Murakami (*) Geological Survey of Japan, AIST, Central 7, Tsukuba 305-8567, Japan e-mail: h-murakami@aist...enrichment in primary auriferous Cu–sulfides such as bornite (Simon et al. 2000; Kesler et al. 2002). Previous...CL CL CL BG PH Martec Loboc Refugioc Elatsite Dizon 126 23 190 972 377 495 754 3,230 700 1,168 1,710...10 28 10 29 10, 20 30 Reference d c b a Bornite content in Cu-sulfide minerals: +++ major (ore |  | | 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... and a minortonnageof bismuthore wasexploitedat San Franciscode Los Andes (Llamblasand Malvicini, 1969) |  | | 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 Æ Giant porphyry copper deposits Æ Central Andes Introduction The genetic link between magmatism...crust (Cathles 1981; Sawkins 1990). The Andes of central Chile host some of the world’s largest porphyry...black line), and the volcanic gap separating the Central Volcanic Zone (CVZ) and the Southern Volcanic Zone |  | | Journal (article/letter/editorial) | | erosion. Low sulfidation-state chalcopyrite ± bornite assemblages are characteristic of potassic zones...Blanco, central Chile; A.J. Wilson, writ. commun., 2009) and Mo (2.5 Mt: El Teniente, central Chile; Camus...Santa Rita (Central dist.) Yanacocha Antamina Bisbee Santo Tomas II & Nugget Hill Dizon Boyongan-Bayugo...intra-arc fault zone: the northern Chile part of the central Andean middle Eocene to early Oligocene porphyry...the latest Cretaceous to Paleocene (Laramide) province of southwestern North America, middle Eocene to |  | | Book | | HYDROTHERMAL COPPER AND GOLD DEPOSITS — • そ ‘ ^^ CENTRAL ASIA • -« THE AMERICAS • I^ r I • • i• な-...and Mineralisation of the Monywa Copper Deposits，Central Myanmar. U Kyaw Win and Douglas J Kirw in......... 61 ， The Mankayan Mineral District, .Luzon Philippines. Artemio F Disini, Bruce M Robertson and Rene...87 The Fort Knox Porphyry Gold Deposit, Eastern-Central Alaska: An Overview and Update. Arne A Bakke, Robert...Agua Rica Porphyry Cu-Mo-Au Deposit，Catamarca Province, Northwestern Argentina. Part 1 : Exploration |  | | Journal (article/letter/editorial) | | sulfide deposits in the Tongling district, Anhui Province—Xu Wenyi, Hou Zengqian, Yang Zhusen, Shi Danian...disseminated gold deposits in southwestern Guizhou province, China—Bao Zhiwei, Zhao Zhenhua, and Jayanta Guha...(HRTEM) study – of the 4α and 6α superstructure of bornite Cu5FeS4 Yang Ding, David R. Veblen, and Charles...Fe/Cu ordering schemes in the 2α superstructure of bornite (Cu5FeS4)—Yang Ding, David R. Veblen, and Charles...the waste rocks of the abandoned Seobo tungsten mine, Korea—Pyeong-koo Lee, Min-Ju Kang, Sang-Hoon Choi |
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