 | | 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...WNW-trending quartz veins associated with sphalerite and galena at deeper part, while enargite and stibnite at...Fluid inclusions in veinlet quartz associated with galena and sphalerite (stage 4) are composed of liquid-rich...190°C from which veinlet quartz associated with galena and sphalerite precipitated. In addition to a change |  | | 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 |  | | 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) | | 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...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...Mankayan Mineral District, Benguet Province, northern Luzon, Philippines (e.g., Gonzalez, 1956; Garcia, 1991) |  | | 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...porphyry. Keywords: bornite, Kingking, Mindanao, Philippines, porphyry copper deposit. 1. Introduction The...south-eastern portion of Mindanao Island, the Philippines. It has a total mineable ore reserve of 353 million |  | | 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) | | Stratovolcanoes or compositeconesare constructed during central vent eruptionsof tephra and suborwestern Americas... 1973), Namosi, Fiji (Rodda,1976), andDizon,Philippines,areall related to dioriteor quartzdioriteporphyrystocksemplaced...Fig. 1) and may be observedin that position at Dizon (R. H. SillitoeandI. M. Gappe,Jr., unpub.rept.,...quaquaversally dip- alterationassemblages, as at Tongonan,Philippines ping volcanicand volcaniclastic rocks,includingim-...1970), and portant laharic deposits.The high, central parts of Matsukawa,Japan(Nakamuraet al., 1970) |  | | 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 ¯ank 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 |  | 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 |  | 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) | | 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...historic Surigao Au district of the southern Philippines (Fig. 1). Recent mineral resource estimates for...systems in mind, Anglo American Exploration (Philippines) Inc. (Anglo American) targeted the Surigao Au |  | | 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 ‰ 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 |  | 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...Indonesia (Davies et al., 2008) and Acupan, Philippines (Cooke and Bloom, 1990; Cooke et al., 1996);...porphyry copper–gold mineralization in Boyongan, Philippines (Braxton et al., 2009; 2018; Braxton and Mathur |  | 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 |  | | 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... Calc-silicate Pyrite, chalcopyrite, bornitc, galena,sphalerite Pyrite, chalcopyrite Quartz, barite |  | 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. |  | | Book | | reference to the opportunities for investment in the region but covering also technical and operational aspects...AND M.A. KHAN Mining operations at Kolihan copper mine, Khetri Copper Complex, India B.L. GUPTA. New concepts... FOX AND J. HOSKINSON R.D. SINGH Kushikino gold mine, Japan KUNITOSHI OHE AND HISAAKI TAKATA x 159°...in pulp plant of the Masbate gold operations, Philippines R.S. PIZARRO AND F.V. ANTONIO 221 Production...technology in Southeast Asia L.L. TEOH Design of a mine-site laboratory facility D.C. SHELTON 237 ey 257 |  | Zhong, Shihua, Feng, Chengyou, Seltmann, Reimar, Li, Daxin, Dai, Zhihui (2018) Geochemical contrasts between Late Triassic ore-bearing and barren intrusions in the Weibao Cu–Pb–Zn deposit, East Kunlun Mountains, NW China: constraints from accessory minerals (zircon and apatite) Mineralium Deposita, 53 (6) 855-870 doi:10.1007/s00126-017-0787-8 | Journal (article/letter/editorial) | | Beijing 100037, China 2 Center for Russian and Central EurAsian Mineral Studies, Department of Earth Sciences...alteration (Fig. 3a, c) and disseminated sulfides, e.g., galena (Fig. 3d), sphalerite, chalcopyrite (Fig. 3e),...al. 2017a). Mafic dikes are observed in the whole mine area (Fig. 2b, c), ranging from several 10 cm to...sericite and chlorite (cross-polarized light). d Galena in quartz diorite (reflected light). e Chalcopyrite...Abbreviations: Am— amphibole, Bt—biotite, Chl—chlorite, Gn—galena, Pl—plagioclase, Px—pyroxene, Py—pyrite, Qz—quartz |  | | 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...the waste rocks of the abandoned Seobo tungsten mine, Korea—Pyeong-koo Lee, Min-Ju Kang, Sang-Hoon Choi...controlled burial dolomitization of the Devonian west-central Alberta deep basin—Darryl G. Green and Eric W....tectonothermal domains in the southeast Slave Province: Evidence from the Walmsley Lake area—S. Cairns |  | | Journal (article/letter/editorial) | | valleyswhichdrainwestinto dean Cordillera of central and northern Chile. The the Atacama desert. Maricungabelt...Coipa, near the site of a long-abandonedvein silver mine, was discoveredin 1981 by Amaxde Chile (R. H. Sillitoeand]...averaging 1.2 g/metric ton Miocenevolcano ß Au-Ag-(Cu)mine Au and133 g/metrictonAg, cameon streamin 1989 with...aremostwidespread The late Cenozoic Andes of northern and central However, reverse faults of mid- to Late Cretaceous...RE•RSEFAULT (t• S•+• c•R• onup•rownside) NORMAL FAULT MINE ORPROSPECT I VOLCANIC CENTER FIG. 3. Schematicmapof |  | | Book (edition) | | ....................... 1625 IX.1. Andaman Sea Region ..................................................................... 2003 IX.8. Philippines (General, Palawan, Luzon) ........................................................... 2048 IX.9. South Philippines (Celebes Sea, Sulu Sea, Sandakan) .............public-domain publications listed alphabetically by region or by subject. It resumes a tradition of annotated...MOLUCCAS SULA BUTON SULAWESI CELEBES SEA (S PHILIPPINES) SULU SEA ARAFURA SEA NEW GUINEA (PAPUA, IRIAN) |  | | Report (issue) | | (Behn and others, 2001; Gow and Walshe, 2005), central Iran (Shahabpour, 1999), and New Guinea (Gow and...Clark and others, 2007). In the thermal infrared region, quartz and hydrous silica contain emission minima...Other associated minerals may include sphalerite, galena, tetrahedrite, and gold tellurides. Mineral Assemblages...molybdenite + pyrite + chalcopyrite, and sphalerite + galena + tetrahedrite ± silver. This paragenetic sequence...zones with <1 wt (weight) percent pyrite in the central part of the deposit, through a surrounding zone |  | | Journal (article/letter/editorial) | | 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...the central Andes, mid-Miocene belt of Iran, and Pliocene belts in New Guinea and the Philippines (Fig |  | Hodges, C.A., Cox, D.P., Singer, D.A., Case, J.E., Berger, B.R., Albers, J.P. (1984) U.S. Geological Survey-INGEOMINAS mineral resource assessment of Colombia. Open-File Report Vol. 1984 (84-345) US Geological Survey doi:10.3133/ofr84345 | Report (issue) | | Tertiary/Quaternary volcanic rocks of the Cordillera Central are favorable hosts for hot spring gold-silver...sampling and geophysical surveying throughout the region, begun. The geologic environment of the shield...zones in young volcanic rocks of the Cordillera Central and southern Cordillera Occidental may well be...Cretaceous sandstones and shales dominates the central part of the Cordillera Oriental (Etayo-Serna and...in post-middle Miocene time. (4) The Cordillera Central, which contains Precambrian and Paleozoic crystalline |
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