 | MAGLAMBAYAN, Victor B., ISHIYAMA, Daizo, MIZUTA, Toshio, IMAI, Akira, ISHIKAWA, Yohei (1998) Geology, Mineralogy, and Formation Environment of the Disseminated Gold-Silver Telluride Bulawan Deposit, Negros Occidental, Philippines. Resource Geology, 48 (2) 87-104 doi:10.1111/j.1751-3928.1998.tb00009.x | Journal (article/letter/editorial) | | Gold-Silver Telluride Bulawan Deposit, Negros Occidental, Philippines Victor B. MAGLAMBAYAN*, Daizo ISHIYAMA**...the porphyry copper belt of southwest Negros island, Philippines. Propylitic, K-feldspar, sericitic, and...in southwestern Negros island, 560 km south of Manila in the Republic of the Philippines. 1. Introduction...Bulawan gold-silver telluride deposit in Negros Occidental, Philippines, has characteristics which are similar...Sciences, University of the Philippines, Diliman, Quezon City, Philippines. [e-mail: maglamvb@hotmail |  | | 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...the south-eastern portion of Mindanao Island, the Philippines. It has a total mineable ore reserve of |  | | 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...the south-eastern portion of Mindanao Island, the Philippines. It has a total mineable ore reserve of |  | | Journal (article/letter/editorial) | | Vol. 64, 1969, pp. 644-666 Ore Depositsof the Philippines An Introduction Their Geology to 1 LEONID...BRYNER Abstract The geologic history of the Philippines pertinent to ore deposition covers the period...diversity of ore types than elsewherein the Philippines. At last eight porphyry copper depositsare known...somedepositsalso contain commercialquantities of magnetite, pyrite, molybdenite,gold and silver. Secondary...either or- ganization. ORE DEPOSITS OF THE PHILIPPINES Contents PAGE Introduction ............... |  | 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) | | porphyry CuAu mineralization, Northern Luzon, Philippines Jianghong Deng, Xiaoyong Yang, Li-peng Zhang...porphyry Cu-Au mineralization, Northern Luzon, Philippines, Ore Geology Reviews (2020), doi: https://doi...porphyry Cu-Au mineralization, Northern Luzon, Philippines Jianghong Deng1-4, Xiaoyong Yang4*, Li-peng...xyyang555@163.com; 1 Abstract 2 The Philippine island arc is famous for the widely developed large porphyry...one of the most Cu-Au enriched areas in the Philippines, which develops Late- 5 Oligocene to Pleistocene |  | | Report (volume) | | ______________________ ______ .. ___________________________ Philippines _______ .. __________ .. ________ .. _______________________...auriferous conglomerates of the Canavieiras gold mine, State of Bahia, Brazil, by M. G. White: Engenharia... Phosphate minerals from the Sapucaia pegmatite mine, Minas Gerais, by W. T. Pecora and M. L. Lindberg:...Reconnaissance for radioactive rocks in the Paulo Monso region, Bahia, Brazil, by D. D. Haynes and Henry Mau:... 148 149 150 151 Map and sections of Andrade mine, Monlevade quadrangle, Minas Gerais, Brazil, by |  | | Journal (article/letter/editorial) | | geologic settings of the porphyry copper deposits in island and continental volcanic-arc subduction-boundary...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...knowledge of the tectonic settings of the deposits. Island and continental volcanic-arc subduction-boundary |  | | Report (volume) | | alphabetically by author under each country or region and are indexed by subject and author. l\Iany of...Reconnaissance for radioactive rocks in the Paulo Afonso region, Bahia, Brazil: U.S. Geol. Survey Rept. TE~I-1104... Phosphate minerals from the Sapucaia pegmatite mine, Minas Gerais: Soc. Brasileira Geologia Bol., v... 164 Reeves, R. G., Map and sections of Andrade mine, Monlevade quadrangle, Minas Gerais, Brazil: U.S...186 Tolbert, G. E., Geology of the Raposos gold mine, Minas Gerais, Brazil: Econ. Geology, v. 59, no |  | | Journal (article/letter/editorial) | | the Intermontane belt of British Columbia, the Philippines, Sulawesi, Papua New Guinea, Sabah and Puerto...alteration, which commonly carries an unusually high magnetite content. High gold content is not directly related...occurrence of significant molybdenum values in some island arc porphyry coppers (Titley, 1978), it seems generally...generally to be true that deposits generated in island arcs tend to be richer in gold and poorer in molybdenum...deposits and examinations of deposits in the Philippines and Sabah, suggests that local factors related |  | | Journal (article/letter/editorial) | | Emerging Porphyry District in Northeast Mindanao, Philippines* David P. Braxton,1,2,ā ,** 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...to hydrothermal conditions. Quartz-poor wispy magnetite-biotite-K-feldspar veinlets characterize stage...consist of quartz with selvage and/or disseminated magnetite or biotite and K-feldspar halos. Stage 3 quartz |  | | Report (issue) | | porphyry copper deposits Copper-molybdenum content Magnetite content Deposit morphology Depth of emplacement...Triangular plot of magnetite content of porphyry copper deposits Plot of magnetite content vs. gold grade...copper ore and a median content of 2.6 percent magnetite in the potassic alteration zone, and porphyry...median size of 500 million tonnes and little magnetite. Molybdenum commonly occurs in lowgrade peripheral...noted the correlation between gold grade and magnetite content in the potassic alteration zones of porphyry |  | | Journal (article/letter/editorial) | | been developed in the region of Baykalian folding in the western Mediterranean region. They are confined...of the Sredna Gora zone. a - Timok region; b - Panagyurishte region. 1 - Precambrian and Paleozoic; 2...The latter are located in the VirginiaMaryland region (Sulphur, Arminius, and Austin Run) and Eastern...the Paleozoic Sambagawa schists; and the Huelva province in Spain ( Rio Tinto). Cimmerian pyritic deposits...also the Franciscan association of California (Island Mountain). Alpine pyritic deposits of this same |  | | Journal (article/letter/editorial) | | v. 106, pp. 1279ā1315 Geology of the Didipio Region and Genesis of the Dinkidi Alkalic Porphyry Cu-Au...Deposit and Related Pegmatites, Northern Luzon, Philippines ROHAN C. WOLFE* AND DAVID R. COOKEā CODES ARC...Dinkidi Cu-Au porphyry deposit, northern Luzon, Philippines, formed at the tip of the southward-propagating...formation. Dinkidi is located in northern Luzon, Philippines (Fig. 1), and is associated with the late Oligocene...motion vector FIG. 1. A) Tectonic setting of the Philippines. Shades of blue relate to water depth (pale blue |  | | Report (issue) | | Tectonics of the Indonesian Region 'cf tfm fyi jjlf fndonesia:, ft%^fe Agfri^fir Jntei^fatw^d ^ifl^p...(Geophysicst and the Tectonics of the Indonesian Region # WARREN HAMILTON U.S. GEOLOGICAL SURVEY PROFESSIONAL.................. Tectonic map of the Indonesian region ............................. Introduction .......................................... Christmas Island .................................................sedimentary rocks ........................... Inactive island arc between the South Arm and Flores .... Subduction |  | | Journal (issue) | | OceaniaāPort tralia; the Columbia; Kembla, Aus- Philippines; th AmericaāLima, Peru; Ban- La Paz, Bolivia;...production 1961 planning, cost analysis, time study, mine management, and business methods. Company presidents...āsoil bankā device for mines. Under the plan, the mine could be retired from production, but the government...have the concentrates or ore stockpiled at the mine. When the price rises to a satisfactory point and...V, āProgram to secure the paid back when the mine again be- comes profitable to operate; or, in |  | | Book | | 61 ļ¼ The Mankayan Mineral District, .Luzon Philippines. Artemio F Disini, Bruce M Robertson and Rene...Agua Rica Porphyry Cu-Mo-Au Depositļ¼Catamarca Province, Northwestern Argentina. Part 1 : Exploration...a deposit, but rather the engineering ability to mine on a large scale at low cost, and simultaneously...Baguio and Lepanto-Mankayan districts in the Philippines, which commenced operation in the mid 1930rs...growing in Africa, the other great copper producing region, new sources o f copper were sought. As a consequence |  | Voudouris, Panagiotis, Melfos, Vasilios, Spry, Paul, Bindi, Luca, Moritz, Robert, Ortelli, Melissa, Kartal, Tamara (2013) Extremely Re-Rich Molybdenite from Porphyry Cu-Mo-Au Prospects in Northeastern Greece: Mode of Occurrence, Causes of Enrichment, and Implications for Gold Exploration. Minerals, 3 (2) 165-191 doi:10.3390/min3020165 | Journal (article/letter/editorial) | | Sardes, Limnos Island (up to 5200 g/t, average = 3785 g/t) and Fakos, Limnos Island (up to 2220 g/t...g/t, average = 1396 g/t) and Stypsi, Lesvos Island (up to 10,600 g/t, average = 2460 g/t), but these Re...prospect, Kilkis; Plaka deposit Lavrion; Serifos island) and shear zone-related CuāAuāBiāMo mineralization...plagioclase, amphibole, biotite, rare quartz and magnetite in a matrix of microlitic quartz, orthoclase and...plagioclase, biotite and hornblende. Quartz, magnetite and titanite are present in the rock matrix. High-sulfidation |  | Volkov, A. V., Savva, N. E., Sidorov, A. A., Egorov, V. N., Shapovalov, V. S., Prokofāev, V. Yu., Kolova, E. E. (2006) Spatial distribution and formation conditions of Au-bearing porphyry Cu-Mo deposits in the Northeast of Russia. Geology of Ore Deposits, 48 (6) 448-472 doi:10.1134/s107570150606002x | Journal (article/letter/editorial) | | postaccretionary tectonic units superimposed on island-arc and oceanic terranes (Geodynamicsā¦, 2006)....the nature of massive sulfide copper deposits in island arcs (Kovalev et al., 1993; Herbert and Constantine...River Pebble Copper Tampakan Atlas Chuquicamata Sipalay Location Gold reserves, t Au, g/t Cu, % 2480...50 0.55 0.50 Papua New Guinea United States Philippines Chile Papua New Guinea Indonesia Peru Papua New...Argentina Papua New Guinea Alaska Philippines ā³ Chile Philippines numerous base-metal, goldāsilver, |  | | Report (issue) | | tellurides and arsenides in an assemblage of magnetite, chalcopyrite, and bornite in the porphyry deposit...along convergent plate-margin boundaries or in island-arc environments. The deposits are associated with...phyllic 6āā alteration-related magnetite destruction and late-stage magnetite formation (Gettings, 2005)...Clark and others, 2007). In the thermal infrared region, quartz and hydrous silica contain emission minima...quartz, K-feldspar, biotite, muscovite (sericite), magnetite, chlorite, anhydrite, and epidote. Other commonly |  | | Book | | Goethite Gold Graphite Hematite Ilmenite Lollingite Magnetite Manganite 83 83 84 84 84 84 84 85 85 85 86 87...Yellow Red/brown Anisotropic Cobaltite Pyrite Magnetite Niccolite Marcasite Pyrrhotite Enargite Ilmenite...Tetrahedrite, tennantite Uraninite, chromite Sphalerite Magnetite Aids to identification 1. Examine as many grains...within it. Samples which have been collected in a mine or open pit exhibit more abundant reflections as...easy standards: Quartz and mounting medium R% Magnetite R% Galena R% Pyrite R% 5 20 43 55 Small differences |  | 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) | | sampling and geophysical surveying throughout the region, begun. The geologic environment of the shield...the Cordillera Central and southern Cordillera Occidental may well be rewarding. 4) Detailed study of...of the Cordillera Central. (5) The Cordillera Occidental, composed of late Mesozoic oceanic crust upon...Cordillera Central (continental) from the Cordillera Occidental (oceanic). This zone, in the subsurface, separates...Cordilleras Central and Occidental (Cauca-Patia Valley), the Cordillera Occidental and Serrania de Baudo |  | | Book | | metalliferous region has been eroded affects its present characteristics as a minera1 province, because of...sills), if they are exposed in outcrop or in the mine workings at all. The Climax Mo complex is the best...orogenic belts formed in evolutionarily primitive island arcs, e.g. in the Izu Peninsula, Japan and elsewhere;...author. localities (e.g. the large Marcona zone of magnetite bodies replacing Jurassic marine limestones at...Batholith and intersecting the magnetite orebodies, produced magnetite, actinolite, minor calcite, quartz |  | | Book | | 1YPesetting: Overseas 1YPographers, Inc., Makati, Philippines 2132/3145-543210 - Printed on acid-free paper................... . Porphyry Copper Deposits in Island Arcs .. . The Panguna Porphyry Copper Deposit,............................ 1.5.3 The Baguio, Philippines and Thyoltita, Mexico Vein Systems ............Deposits of Principal Arcs ...... 64 1.6.1 Massive Magnetite Deposits ............... 1.6.2 Manto-Type Copper...Deposits ................ . 4.5.2 The Homestake Gold Mine, South Dakota .. 4.5.3 Pre-Metamorphic Stratiform |  | | Report (issue) | | porphyry copper deposits in the Cascade geologic province. .... .j................. Estimates of metal endowment...the northern spotted owl in the Cascade geologic province (fig. 1) was assessed for tracts that are permissive...of the metal endowment of the Cascades geologic province entails three basic steps: (1) delineation of...porphyry copper deposits in the Cascade geologic province. Eight million metric tons of copper are present...44-51-20N 120-57-19W 47-29-40N Van Epps, Pickwick Mine 122-04-51W 121-46-OOW 47-09-40N 46-21-23N 121-18-22W |  | | Book | | metalliferous region has been eroded affects its present characteristics as a mineral province, because of...sills), if they are exposed in outcrop or in the mine workings at all. The Climax Mo complex is the best...orogenic belts formed in evolutionarily primitive island arcs, e.g. in the Izu Peninsula, Japan and elsewhere;...i localities (e.g. the large Marcona zone of magnetite bodies replacing Jurassic marine limestones at...Batholith and intersecting the magnetite orebodies, produced magnetite, actinolite, minor calcite, quartz |
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