 | | Journal (article/letter/editorial) | | of Porphyry Cu Deposits of the Western Luzon Arc, Philippines: K-Ar ages, SO3 Contents of Microphenocrystic...deposits in the western Luzon arc are determined: Lobo-Boneng (10.5±0.4 Ma), Santo Niño (9.5±0.3 Ma), Black...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 |  | 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) | | 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...quartz-anhydrite stockworks are chalcopyrite and pyrite with minor bornite and Bi-Te-bearing tennantite...tennantite, with trace of native gold. Rounded pyrite grains appear fractured and corroded and are interpreted...remnants of primary intermediate solid solution + pyrite assemblage. A breccia pipe truncates the deposit |  | 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 Gold–Copper 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...of the Zambales ophiolitic terrane to Northern Luzon. Then, magmatic activity resumed at 3 Ma, emplacing |  | | 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...veinlets with chalcopyrite and pyrite associated with Au and chalcopyrite and pyrite stringers in sericite alteration...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) |  | 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) | | Significance in the Mankayan Mineral District, Luzon, Philippines Fernando G. SAJONA, Eiji IZAWA*, Yoshinobu...Bureau, North Avenue, Diliman, Quezon City, Philippines [e-mail: diksajona@hotmail.com] * Department...in the Mankayan mineral district, northern Luzon, Philippines. It occurs just south of a high-sulfidation...metal, gold, epithermal, Lepanto, Mankayan, Luzon, Philippines from the depleted Lepanto enargite deposit...Introduction The Mankayan mineral district, northern Luzon, Philippines, hosts several porphyry copper and epithermal |  | 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...Boyongan. This thick vadose zone and the low hypogene pyrite/copper sulfide ratios (0.6) at Boyongan promoted |  | 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 |  | | 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...of massive bornite-chalcopyrite and chalcopyrite-pyrite with K-feldspar halos. Stage 3 quartz veins and...pervasive illite alteration, in association with pyrite, chalcopyrite, and tetrahedrite-tennantite, developed |  | | Journal (article/letter/editorial) | | located within the Mesa Central physiographic province, which is an elevated plateau made up of marine...western portions of the Mesa Central physiographic province (Fig. 1). The Guerrero terrane forms part of a...crustal extension of the Mesa Central physiographic province 0361-0128/98/000/000-00 $6.00 (Orozco-Esquivel...intermediate sulfidation epithermal veins such as Santo Niño and San Carlos; and, finally, 1336 SCIENTIFIC...inclusion gas analysis results suggest that the Santo Niño, Jarillas, and Valdecañas veins are genetically |  | | Journal (issue) | | Famous Mineral Localities: The Erupción/Ahumada Mine, Los Lamentos District, Chihuahua, Mexico ........minrec.org Front Cover WULFENITE from the Ahumada mine, Los Lamentos District, Chihuahua, Mexico; 6.6 cm...gathering around a natural amphitheater amid the mine buildings and headframes in order to hear what we...Mexico-II having been devoted to the famous Ojuela mine). Covered here are four more important and prolific...and Arizona Company, then managed the New Cornelia mine at Ajo with great success. While still working for |  | | Journal (article/letter/editorial) | | intermediate-sulfidation state sulfides such as pyrite, chalcopyrite, sphalerite, galena, and tetrahedrite/tennantite...different naming tradition, IS deposits in the Cordillera have been termed “Cordilleran polymetallic\base...“carbonate-base metal Au deposits” in the circum-Pacific region (e.g., Leach and Corbett, 1994; Corbett and Leach...sulfidation is stable with respect to chalcopyrite-pyrite-argentite as well as tennantite and tetrahedrite...characterized by high content sulfides (10-90 vol%), pyrite – enargite – luzonite – famatinite – covellite |  | Camprubí, Antoni, Chomiak, Beverly A., Villanueva-Estrada, Ruth E., Canals, Àngels, Norman, David I., Cardellach, Esteve, Stute, Martin (2006) Fluid sources for the La Guitarra epithermal deposit (Temascaltepec district, Mexico): Volatile and helium isotope analyses in fluid inclusions. Chemical Geology, 231 (3) 252-284 doi:10.1016/j.chemgeo.2006.02.002 | Journal (article/letter/editorial) | | Fresnillo in Mexico and Antamok-Acupan in the Philippines were obtained R/Ra values of 1 to 2 and 6 to...Ag–Au minerals Mineralogy Association 1 Quartz, pyrite, sphalerite, galena, fluorite, siderite, ankerite...phantoms, adularia Quartz, chalcedony, opal Quartz, pyrite, sphalerite, galena, marcasite, chalcopyrite Association...chalcedony, bladed calcite phantoms, adularia, sericite, pyrite, sphalerite, galena Ag-tetrahedrite–tennantite...Quartz, pyrite, sphalerite, galena, marcasite, stibnite [or] quartz, sphalerite, galena, pyrite, greenockite |  | | Journal (article/letter/editorial) | | Québec H3A 2A7, Canada Abstract The El Mochito mine, located in west-central Honduras, exploits a Zn-Pb-Ag...minerals including sphalerite, galena, pyrrhotite, and pyrite postdate a gangue consisting mainly of pyroxene...the largest operating mine in Central America, is located in the Central Cordillera of Honduras and exploits...1998). Geologically, the region forms part of the Chortis block, a major province of the Caribbean plate...restricted to diabase dikes exposed solely in the mine. The dikes, which range in age from 9.4 ± 0.4 to |  | | Report (issue) | | a given name refers to a mine or deposit, a nearby location or administrative area, a geologic formation...names may be used to refer to a single deposit or mine. For large deposits or mineralized areas, a 3 single...state/principal administrative area, third order administrative area, basin/formation/region(area)/deposit...state/principal administrative area, third order administrative area, basin/formation/region(area)/ deposit...Names used in the country and state/principal administrative area fields are compliant with Federal Information |  | Mehrabi, Behzad, Siani, Majid Ghasemi, Goldfarb, Richard, Azizi, Hossein, Ganerod, Morgan, Marsh, Erin Elizabeth (2016) Mineral assemblages, fluid evolution, and genesis of polymetallic epithermal veins, Glojeh district, NW Iran. Ore Geology Reviews, 78. 41-57 doi:10.1016/j.oregeorev.2016.03.016 | Journal (article/letter/editorial) | | mineralized locations in the Tarom-Hashtjin metallogenic province, northwestern Iran. It consists of D four major...contamination. Sulfur isotope values for chalcopyrite, pyrite, sphalerite, and galena are mainly -7.3 to +1.3...north and the Tarom-Hashtjin TE metallogenic province in the south (Fig. 1). AC CE P The Glojeh district...Zanjan, within the Tarom-Hashtjin metallogenic province (Fig. 2). The district consists of a set of polymetallic...east of the North Glojeh veins. However, historic mine workings can be seen as tunnels and wells in the |  | | Journal (article/letter/editorial) | | minerals that are great “character actors” are pyrite and members of the feldspar and the mica groups...Muscovite’s name is derived from the old Russian province of Muscovy, where muscovite was used as window...in tin-tungsten deposits (such as the Panasquiera mine) and is a constituent of granite, aplite, gneiss...are those from the pegmatites of the New England region. From Maine, King and Foord (1994, p. 246) note...muscovite with quartz, 6.8 cm wide, from the Santo Niño mine, Patagonia district, Santa Cruz County, Arizona |  | | Journal (article/letter/editorial) | | in this environment. The world-class Martha Hill mine in the Hauraki goldfield of New Zealand (Figs. 1...state of structural information in the Martha Hill mine up to 1994, as presented by Cargill (1994), and...style towards the now-exposed deeper levels of the mine similar to the downward disappearance of microcrystalline...overseas. Regional and Local Geology The Martha Hill mine is part of the Hauraki goldfield on the Coromandel...Coromandel peninsula and location of the Martha Hill mine, modified after Skinner (1986), Brathwaite et al |  | Kouhestani, Hossein, Mokhtari, Mir Ali Asghar, Qin, Kezhang, Zhao, Junxing (2019) Origin and evolution of hydrothermal fluids in the Marshoun epithermal Pb–Zn–Cu (Ag) deposit, Tarom-Hashtjin metallogenic belt, NW Iran. Ore Geology Reviews, 113. 103087 doi:10.1016/j.oregeorev.2019.103087 | Journal (article/letter/editorial) | | quartz-chalcopyrite-pyrite veins and breccias, (2) quartz (calcite)-sphalerite-galena ± chalcopyrite ± pyrite veins...assemblages. The primary metallic minerals are pyrite, chalcopyrite, sphalerite, and galena; gangue minerals...Although the general geological characteristics of the region, where the Marshoun deposit is located, were determined...commonly in the veins (Fig. 4G and H). Sulfide (pyrite, chalcopyrite, galena, and sphalerite) content...mineralogy The ores at Marshoun are dominated by pyrite, chalcopyrite, galena and sphalerite, with lesser |  | | Journal (article/letter/editorial) | | referred mainly to fossils, formed by calcite and pyrite, it also included pseudomorphs in the “mineral...world, instead of the nonexistent In 1975, the Santo Niño and Santa Elena veins were argentite. Acanthite...Guanajuato (Mexico) and has become the richest silver mine in the world, in more recently Bou Azzer and Imiter...ceased vein. The San Juan production by the de Rayas mine in time of World War II. Guanajuato also In 1946...very city In Morocco, the of Oberschlema Bou Azzer mine, itself, which finally already very had to be relocated |  | | Report (issue) | | North American plate margin in México. It is this province that is the subject of the paper by Ferrari et...for the first time, a comprehensive view of the province, including its structural and stratigraphic characteristics...of the magmatic and tectonic evolution of the province as well as a discussion of the age-old debate...The Mesa Central (Mexican Plateau) is a geologic province whose stratigraphy and structure are very different...propose the crustal structure of this geologic province, taking into account the tectonics of the oceanic |  | Kouhestani, Hossein, Mokhtari, Mir Ali Asghar, Qin, Kezhang, Zhao, Junxing (2019) Fluid inclusion and stable isotope constraints on ore genesis of the Zajkan epithermal base metal deposit, Tarom–Hashtjin metallogenic belt, NW Iran. Ore Geology Reviews, 109. 564-584 doi:10.1016/j.oregeorev.2019.05.014 | Journal (article/letter/editorial) | | quartz-chalcopyrite-pyrite veins, (2) quartz-galena-sphalerite ± chalcopyrite ± pyrite veins and breccias...quartz-carbonate veinlets. The primary metallic minerals are pyrite, chalcopyrite, sphalerite, galena, and trace amounts...depth of Zajkan indicates minor denudation in the region and may imply a great prospecting potential for...commonly in the veins (Fig. 4F and G). Sulfide (pyrite, chalcopyrite, galena, and sphalerite) content...variable amounts of disseminated chalcopyrite and pyrite (Fig. 5A). The veins are dominated by fine- to coarsegrained |  | Zukowski, W., Cooke, D. R., Deyell, C. L., McInnes, P., Simpson, K. (2014) Genesis and Exploration Implications of Epithermal Gold Mineralization and Porphyry-Style Alteration at the Endeavour 41 Prospect, Cowal District, New South Wales, Australia. Economic Geology, 109 (4) 1079-1115 doi:10.2113/econgeo.109.4.1079 | Journal (article/letter/editorial) | | Barrick 3 Mineral Gold of Australia, Cowal Gold Mine, New South Wales, Australia Deposit Research Unit...epithermal-style gold mineralizing events: (1) quartz-pyrite ± calcite ± adularia ± chlorite veins (stage 3)...metal sulfide veins (calcite, ankerite, quartz, pyrite, sphalerite, galena, chalcopyrite, Ag tellurides...in pyrite. It also occurs as grains of Au-Ag tellurides and as inclusions of free gold in pyrite, sphalerite...km wide (Fig. 2A, B). Although outcrop in this region is extremely limited, the igneous complex is obvious |  | | Journal (article/letter/editorial) | | carbonate veining and faults filled with clay and pyrite. Kencana (K1 vein) shows a complex, multiphase...lesser selenian galena, sphalerite, bornite, and pyrite. Accessory minerals include aguilarite and molybdenite...of the island of Halmahera in the North Maluku Province of eastern Indonesia at an approximate location...significant Au occurrence known in the Halmahera region, the Kaputusan Cu-Au porphyry deposit on the island...intercept of 18 m at 125.7 g/t Au. Construction of mine infrastructure commenced in 1998. Production began |  | | Journal (article/letter/editorial) | | environment, and few traces of it remain at the San José mine. Argentiferous galena has been reported to be the...Aracena lies within the northern part of the Huelva province (Andalusia, Spain), at elevations of about 1000...Zn-Pb-Ag-Ba mineralizations in the region, with sphalerite, galena and pyrite being the main ore minerals (Fernández-Caliani...simple, consisting essentially of fine-grained pyrite, sphalerite and galena, with minor chalcopyrite...ore bodies at the cm-scale. Under the microscope, pyrite is seen as both cubic crystals and anhedral masses |
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