 | | 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 |  | 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) | | Magmatism in the Baguio Gold–Copper Mining District (Northern Luzon, Philippines) Mireille Polve1, Rene...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...district that displays porphyry copper and epithermal gold mineralization, associated with Early Miocene–Pliocene–Quaternary...thought to reflect the progressive addition to the Luzon arc mantle wedge of incompatible elements largely |  | | 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...and Bi-Te-bearing tennantite, with trace of native gold. Rounded pyrite grains appear fractured and corroded...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) | | 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...with porphyry Cu deposits, especially those at the Santo Tomas II deposit, show significantly high Cl contents...southern Kyushu are similar to those from the Western Luzon arc. The SO3 contents of accessory apatite in the |  | | 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...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)...Black Mountain (Kennon) (Toñgonan, 1977), and the Santo Tomas II deposit (Serafica and Baluda, 1977; Togashi |  | 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) | | Carbonate-Base Metal Gold Deposit and Its Significance in the Mankayan Mineral District, Luzon, Philippines Fernando...Bureau, North Avenue, Diliman, Quezon City, Philippines [e-mail: diksajona@hotmail.com] * Department...The Victoria gold deposit is a low-sulfidation style epithermal carbonate-base metal gold deposit discovered...district, northern Luzon, Philippines. It occurs just south of a high-sulfidation copper-gold orebody (Lepanto...(Lepanto enargite deposit) and a porphyry copper-gold orebody (Far Southeast (FSE) deposit). Radiometric |  | 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) | | Boyongan and Bayugo Porphyry Copper-Gold Deposits, Surigao, Philippines: Geology, Mineralogy, Paleoaltimetry...American Exploration (Philippines) Inc. 21 Outlook Drive Baguio City, Philippines 2600 Abstract The Boyongan...porphyry copper-gold deposits are part of an emerging belt of intrusion-centered gold-rich deposits in...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 |  | 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...porphyry copper–gold deposit in the Baguio District, northwestern Luzon, Philippines. The Southwest prospect...prospect hosts a copper-gold mineralization related to a complex of porphyry intrusions, breccia facies...developed on the host rocks. Elevated copper and gold grades correspond to (a) chalcopyrite–bornite assemblage |  | | 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) | | 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...Fresnillo-Southwest area comprising the high-grade silver, gold, lead, and zinc, intermediate sulfidation Saucito |  | | 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) | | the number of undiscovered deposits. In any given region, some fixed, but in most cases unknown, number...(Singer et al., 2005). Three control areas in the Philippines and four control areas in South America serve...Miocene ( 1) Western Philippines ( 2) Central Philippines ( 3) Eastern Philippines ( 4) Northern Sulawesi...deposit types, such as porphyry copper or placer gold, if the deposits are exposed and the area is not...divided into three subtypes: copper (Cu-Au-Mo), copper-gold (Cu-Au), and copper-molybdenum (Cu-Mo), which are |  | | Journal (article/letter/editorial) | | Au-Cu deposits, and their economic metals are mainly gold and/or silver. By contrast, some E-type IS deposits...Introduction Epithermal deposits are responsible for 8% gold (Frimmel, 2008), 17 % silver (Singer, 1995), and...precipitation of bisulfide-complexed metals such as gold. Boiling and its concomitant phase separation and...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 |  | 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) | | suggests that the necessary sulfur to carry mostly gold as bisulfide complexes came essentially from magmatic...magmatic fluids is a key factor for the transport of gold and the occurrence of metallic mineralizations....Fresnillo in Mexico and Antamok-Acupan in the Philippines were obtained R/Ra values of 1 to 2 and 6 to...it is also likely that the H2S necessary to carry gold as bisulfide complexes came mostly from magmatic...mantle-derived helium component although, as in the Santo Niño vein of the Fresnillo district (Simmons et al |  | | Journal (article/letter/editorial) | | metal veins (e.g., Sarrabus, Italy), epithermal gold-silver deposits (e.g., Judith Mountains, Montana;...(Höller and Gandhi 1995), and epithermal Sedefche gold-silver deposit, Bulgaria (Strashimirov et al. 2005)...Mexico. Gemmell et al. (1989) showed that the Santo Niño vein in the Fresnillo district contains pyrargyrite...Erzgebirge, Germany Frohnau, Saxony, Germany Sarbay Iron Mine, Kazakhstan Lengenbach, Vallese, Switzerland Fresnillo...Oberwolfach, Clara Grube, Germany Morey Mine, Nevada, U.S.A. Zaca Mine, California, U.S.A. Guanajuato, Mexico |  | | Journal (article/letter/editorial) | | and Technology] at 12:21 07 January 2015 values Gold, Bolívar, Venezuela, 3 cm Photo: Malte Sickinger...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...Detrital muscovite and biotite have been mistaken for gold, a fact I found hard to believe when I first heard...to inform at least one person a year that their “gold flakes” are actually muscovite. One young man brought |  | | Journal (article/letter/editorial) | | Québec H3A 2A7, Canada Abstract The El Mochito mine, located in west-central Honduras, exploits a Zn-Pb-Ag...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...et al., 1987). Three main fault sets occur in the mine (Fig. 3). The oldest faults trend east-northeast |  | | Journal (article/letter/editorial) | | dominated by northeast-striking gold-silver lodes up to 30 m thick. Gold production was entirely from quartz...structural study of a major, superbly exposed epithermal gold deposit can provide much needed observational ground...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 |  | 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...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...veins that trend east-west, and a southern area of gold-rich veins that are NW-and N-S-trending (Fig. 3)...east of the North Glojeh veins. However, historic mine workings can be seen as tunnels and wells in the |  | | 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 |  | | Report (issue) | | GEOLOGY AND MINERAL RESOURCES OF THE ORTIZ MINE GRANT, SANTA FE COUNTY, NEW MEXICO Open-file Report 560...New Mexico 87801 March 2014 ABSTRACT The Ortiz Mine Grant, as defined by a patent issued by the US Congress...approximately 10 mi x 10 mi tract centered on the old Ortiz Mine in the eastern part of the Ortiz Mountain range...Tuerto Hills, in the southwestern part of the Ortiz Mine Grant. These rocks are similar to those exposed...the Ortiz Mountains. Igneous rocks on the Ortiz Mine Grant may be divided into an early calc-alkaline |  | 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) | | deposits are important sources of precious (e.g., gold, silver), and base metals (e.g., Cu, Pb, Zn) (Simmons...Although the general geological characteristics of the region, where the Marshoun deposit is located, were determined...mineralogy of the epithermal systems at Marshoun. In the gold-rich epithermal environments, fluid inclusions are...metal ores with relatively higher salinities and gold-silver ores with lower salinities has been previously... Fallick, A.E., 2000. The nature and genesis of gold-silver-tellurium mineralization in the Metaliferi |  | 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) | | depth of Zajkan indicates minor denudation in the region and may imply a great prospecting potential for...actual depth, indicating minor denudation in the region. This also implies a great prospecting potential...formation at Zajkan indicate minor denudation in the region. These results imply a great prospecting potential... Fallick, A.E., 2000. The nature and genesis of gold-silver-tellurium mineralization in the Metaliferi...intermediate-sulfidation epithermal deposits. 24 Carat Gold Workshop. Centre for Ore Dep. Res. Spec. Pub., pp |  | 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) | | Genesis and Exploration Implications of Epithermal Gold Mineralization and Porphyry-Style Alteration at... Australia 2 Barrick 3 Mineral Gold of Australia, Cowal Gold Mine, New South Wales, Australia Deposit...a deep-level, structurally controlled epithermal gold deposit hosted by Early Ordovician subaqueous volcanosedimentary...pyroxene-bearing dikes, are temporally related to gold mineralization. Postmineralization intrusions are...alteration to lower-temperature epithermal-style gold mineralization. Early magnetite and garnet-bearing |
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