 | | Journal (article/letter/editorial) | | porphyry Cu-Au mineralization at the Dizon mine, Philippines William P. Midea1 | Keiko Hattori1 | Gabriel...Sciences, University of the Philippines Diliman, Quezon City, Philippines Correspondence William P. Midea...geothermobarometry, Fe-Ti oxide geothermobarometry, Luzon arc, magma oxidation, magmatic hydrothermal activity...Au-rich porphyry Cu deposit in the Luzon arc, Philippines. The Luzon arc hosts many young, <10 Ma, porphyry...the water contents. 2 | R EGIONAL G EOLOG Y The Luzon arc formed in response to the eastward subduction |  | | Journal (article/letter/editorial) | | Southeast Porphyry Cu-Au Deposit, Mankayan, Philippines Akira IMAI Abstract: The Lepanto Far Southeast...Cu-Au deposit in Mankayan, Benguet Province, Philippines. The principal orebody consists of potassic alteration...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...Mineral District, Benguet Province, northern Luzon, Philippines (e.g., Gonzalez, 1956; Garcia, 1991). A set |  | | Journal (article/letter/editorial) | | Porphyry and Lepanto Epithermal CuāAu Deposits, Philippines Jeffrey W. HEDENQUIST,1,2 Antonio ARRIBAS R.1...world-class Far Southeast (FSE) porphyry system, Philippines, includes the FSE CuāAu porphyry deposit, the...the Mankayan mineral district of northern Luzon, Philippines (Hedenquist et al., 1998). The Lepanto high-sulļ¬dation...accompanied by tetrahedrite, chalcopyrite and sphalerite plus telluride and selenide minerals (Gonzalez...have a fractionation factor similar to that of sphalerite due to their structural similarities (R. Seal |  | | 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...4) WNW-trending quartz veins associated with sphalerite and galena at deeper part, while enargite and...in veinlet quartz associated with galena and sphalerite (stage 4) are composed of liquid-rich two-phase...which veinlet quartz associated with galena and sphalerite precipitated. In addition to a change in temperature-pressure |  | | Journal (article/letter/editorial) | | THE GEOLOGY OF LUZON, P.I. WARREN D. SMITH, PH.D. Chief of Division of Mines, Bureau of Science, Manila...INTRODUCTION PHYSIOGRAPHY The CoastalPlains The Central Plain The Albay Plain The Intermediate Uplands...ECONOMIC Coal Iron Oil Gold Copper INTRODUCTION Luzon is the largest island of the Philippine group and...mining field, evidence is already abundant that Luzon will before many years have a place in the very...very first rank. Finally, M'anila, the capital of Luzon, through her Bureau of Science, an institution not |  | XIAO, Bo, QIN, Kezhang, LI, Guangming, LI, Jinxiang, XIA, Daixiang, CHEN, Lei, ZHAO, Junxing (2012) Highly Oxidized Magma and Fluid Evolution of Miocene Qulong Giant Porphyry Cu-Mo Deposit, Southern Tibet, China. Resource Geology, 62 (1) 4-18 doi:10.1111/j.1751-3928.2011.00177.x | Journal (article/letter/editorial) | | in Mexico (Luhr et al., 1984) and Mount Pinatubo in the Philippines (Bernard et al., 1991). The Qulong...of Lhasa city, the capital of Tibet Autonomous Region and 45 km north of the YarlungTsangpo River (the...stock intruded into biotite monzogranite in the central part of the ore district. The minerals of this...molybdenite, a few bornite, chalcocite, and trace sphalerite and galena. Main gangue minerals are quartz,...magnetite; Py, pyrite; Qz, quartz; Ser, sericite; Sph, sphalerite. Abundant in Jurassic tuff, granodiorite; rarely |  | Cooke, D. R., Deyell, C. L., Waters, P. J., Gonzales, R. I., Zaw, K. (2011) Evidence for Magmatic-Hydrothermal Fluids and Ore-Forming Processes in Epithermal and Porphyry Deposits of the Baguio District, Philippines. Economic Geology, 106 (8) 1399-1424 doi:10.2113/econgeo.106.8.1399 | Journal (article/letter/editorial) | | and Porphyry Deposits of the Baguio District, Philippines DAVID R. COOKE,1,ā CARI L. DEYELL,1,* PATRICK...7001, Australia 2 Anglo American Exploration Philippines Inc., 1101 Pearlbank Centre Building, 146 Valero...Salcedo Village, Makati City, Metro Manila, Philippines Abstract The Baguio district contains a diverse...plate and the Scarborough Ridge beneath northern Luzon over the past 3 m.y. Rapid uplift and exhumation...sulfidation epithermal veins of the southern and central Baguio district are mostly between +1 and +6 per |  | Parat, Fleurice, Dungan, Michael A, Streck, Martin J (2002) Anhydrite, pyrrhotite, and sulfur-rich apatite: tracing the sulfur evolution of an Oligocene andesite (Eagle Mountain, CO, USA) Lithos, 64 (3) 63-75 doi:10.1016/s0024-4937(02)00155-x | Journal (article/letter/editorial) | | subduction-related volcanoes El ChichoĢn, Mt. Pinatubo, and Lascar. Although the Oligocene geodynamic...subduction-related volcanoes El ChichoĢn (1982), Mt. Pinatubo (1991), and Lascar (1993 and 26.5 ka) shows that...Generalized geological map of the south part of the central San Juan volcanic field, Colorado (after Lipman...arcs, with the possible exception of the eastern Central Andean Arc (Kay et al., 1999). The Eagle Mountain...Ma) erupted from the La Garita caldera of the central San Juan caldera cluster (Lipman, 2000). Hornblende-bearing |  | | Report (chapter) | | mineralization in the Karacaali Magmatic Complex, central Anatolia, Turkey OKAN DELIBASĢ§1*, YURDAL GENCĢ§1...calc-alkaline Karacaali Magmatic Complex (KMC), in the Central Anatolian Crystalline Complex, is an example of...available at http://www.geolsoc.org.uk/SUP18434. The Central Anatolian Crystalline Complex (CACC) (GoĢncuĢogĢlu...et al. 2001; IĢlbeyli et al. 2004) situated in central Turkey, east of Ankara (Fig. 1). This crustal segment...IĢlbeyli 2005). Since Early Cretaceous times this region is thought to have undergone a complex magmatic |  | | Journal (article/letter/editorial) | | (Luhr et al., 1984) and eruption of Mt. Pinatubo (Philippines) in 1991 showed that IP anhydrite is a...phase (de Hoog, 2004). Stability of anhydrite in Pinatubo dacite was CR also experimentally demonstrated...(Jugo et al., 2010) of melt inclusions of Mt. Pinatubo and in basalts from Cascades Range, Oregon. Furthermore...given SO2 injection in the stratosphere by the Pinatubo eruption and formation of acidic aerosols led...AN 3. Results US standard for S6+ whereas sphalerite was used as a standard for S2-. Peak counting |  | | Report (issue) | | of the numerous setbacks which mining in the Philippines has suffered, and the great handicaps with which...cent of the total consumption of coal in the Philippines. Raw cement materials at Naga, Cebu, which were...GENERAL REMARKS Of the metallic minerals of the Philippines, gold is first in importance, and its production...and silver minerals are known to occur in the Philippines, but no large deposits of this metal have as...values of gold and silver exported from the Philippines during the last three years are as follows Table |  | | Journal (article/letter/editorial) | | (Carroll and Rutherford 1988). Celestine (SrSO4) and sphalerite (ZnS) were used as references for pure sulfate...rocks from the Mariana arc (Alt et al. 1993) and Luzon arc (Hattori 1997). These observations suggest that...a case study of 2000 year BP Xitle volcano in central Mexico. J Volcanol Geotherm Res 120:249ā270 Danhara...and origin of sulfide and sulfate in the 1991 Mount Pinatubo eruption products. In: Newhall CG, Punongbayan...Fire and mud: eruptions and lahars of Mount Pinatubo. Philippines. Univ. of Washington Press, Seattle, |  | Wu, Chu, Hong, Tao, Xu, Xing-Wang, Cao, Ming-Jian, Li, Hao, Ke, Qiang, Li, Hang, Dong, Lian-Hui (2019) Constraints on the formation of the Baogutu reduced porphyry copper deposit (West Junggar, NW China): Assessing the role of mafic magmas in mineralization. Lithos, 336. 112-124 doi:10.1016/j.lithos.2019.03.034 | Journal (article/letter/editorial) | | West Junggar region lies within the central part of the west domain of SC the Central Asian Orogenic...pyrite, molybdenite, and gold occur with galena, sphalerite, ilmenite, and NU titanomagnetite, whereas..., 1997; Hattori and Keith, 2001); Mount Pinatubo, SC Philippines (Hattori and Keith, 2001); Climax...(Cao et al., MA 2014b); and Black Mountain, Philippines (Cao et al., 2018). Mafic magmatism commonly...Black Mountain Porphyry Cu-Au Deposit, PT E Philippines: Insights from Mineral Chemistry and Implications |  | Wilke, M., Jugo, P. J., Klimm, K., Susini, J., Botcharnikov, R., Kohn, S. C., Janousch, M. (2008) The origin of S4+ detected in silicate glasses by XANES. American Mineralogist, 93 (1) 235-240 doi:10.2138/am.2008.2765 | Journal (article/letter/editorial) | | peak of crystalline standards (e.g., barite and sphalerite). In contrast, the fine structure found in X-ray... Spectra were normalized by fitting the energy region before the edge using a polynomial and subtracting...experiment, complete reduction was avoided, so that the central part of the capsule contained glass (with 3600...normalisedabsorption absorption normalized pj086 central part normalized normalisedabsorption absorption... 2510 2520 Energy (eV) pj034 spot 2 pj086 central part pj034 spot 1-2 a) 2460 2470 2480 2490 |  | | Journal (article/letter/editorial) | | of CuāFe sulfide minerals, sulfosalt minerals, sphalerite and galena), anhydrite and minor quartz. In most...rocks and is thus rock buffered. Boiling in the central upflowing fluid, the primary mechanism for sulfide...epithermal Cu-Au deposits over 300 ka in northern Luzon, Philippines. Geology 23: 337-340 Beane RE, Titley SR...contributions to arc magmatism in the Andes of central Chile. Contributions to Mineralogy and Petrology...solution. Elements 5: 281-287 Pasteris JD (1996) Mount Pinatubo volcano and ānegativeā porphyry copper deposits |  | | Journal (article/letter/editorial) | | radiative forcing following the 1991 eruption of Mt. Pinatubo, resulting from the worldwide distribution of...a tephra layer that is widely dispersed across central Europe (Bogaard and Schmincke 1984, 1985; Bogaard...Areal distribution of Laacher See Tephra (LST) in central Europe (Bogaard and Schmincke 1985). Stratigraphic...the other (Nilsson and Peach 1993). Barite and sphalerite were used as references for pure sulfate and...g., El ChichoĆn 1982; Mt. Redoubt 1989/90; Mt. Pinatubo 1991) have demonstrated that the petrologic method |  | Wang, Minfang, Gutzmer, Jens, Michalak, Przemyslaw P., Guo, Xiaonan, Xiao, Fan, Wang, Wei, Liu, Kun (2014) PGE geochemistry of the Fengshan porphyryāskarn CuāMo deposit, Hubei Province, Eastern China. Ore Geology Reviews, 56. 1-12 doi:10.1016/j.oregeorev.2013.07.006 | Journal (article/letter/editorial) | | Elatsite in Bulgaria, and Santo Tomas II in the Philippines, etc. (Economou-Eliopoulos, 2010; Mutschler et... Potassic alteration is present mostly in the central part of the granodiorite. It is represented by...in the Fengshan deposit. In summary, from the central part of the granodiorite outward, it developed...molybdenite; py: pyrite; sch: scheelite; sph: sphalerite. 8 M. Wang et al. / Ore Geology Reviews 56...mantle source region, liberation of mantle sulfate during partial melting in the source region, and an oxidized |  | | Journal (article/letter/editorial) | | deposit, located in the easternmost portion of the Central Asian Orogenic Belt in China. The gold-bearing...zonations are Cu-AuāAuāAu-AgāPb-Zn, distributed from central orebody to the outer part. Mesozoic granitoids...by pyrite, chalcopyrite, pyrrhotite, galena, sphalerite, molybdenite, with minor stibnite, magnetite...the ion potential difference is in the transition region between good affinity and differentiation, indicating...of the Mount Pinatubo eruption. Fire and Mud: Eruptions and Lahars of Mount Pinatubo, Philippines, 875-891 |  | | Journal (article/letter/editorial) | | 6 and 9 km. Although Cu grades are low in this region, abundant chalcopyrite daughter minerals in fluid...transported Cu from the magma below, upward into the region of Cu mineralization with only minor Cu precipitation...mineralization, molybdenite grades are highest. This region is characterized by quartz-dominated veins containing...pre-Main stage vein types in both domes and in the central pervasively sericitized bulb (Fig. 3). In the outermost...outermost zone, veins contain pyrite, sphalerite, galena, rhodochrosite, chalcopyrite, and epidote in |  | Chai, Peng, Sun, Jing-Gui, Xing, Shu-Wen, Men, Lan-Jing, Han, Ji-Long (2015) Early Cretaceous arc magmatism and high-sulphidation epithermal porphyry CuāAu mineralization in Yanbian area, Northeast China: the Duhuangling example. International Geology Review, 57 (9) 1267-1293 doi:10.1080/00206814.2014.960013 | Journal (article/letter/editorial) | | mineralization-associated magmatic events in this region and, based on the results, identify the geological...geological and mineral exploration model for the region, thus building on previous research which has identiļ¬ed...the eastern TianshanāMongoliaāHingan end of the Central Asian Orogenic Belt (CAOB), adjacent to the Jiamusi...northeast (Figure 1AāC). The tectonic history of the region is dominated by the evolution of the ancient Asian...chalcopyrite, enargite, bornite, chalcocite, sphalerite, magnetite, native gold and electrum Pyrite, |  | Keith, J. D., Whitney, J. A., Hattori, K., Ballantyne, G. H., Christiansen, E. H., Barr, D. L., Cannan, T. M., Hook, C. J. (1997) The Role of Magmatic Sulfides and Mafic Alkaline Magmas in the Bingham and Tintic Mining Districts, Utah. Journal of Petrology, 38 (12) 1679-1690 doi:10.1093/petroj/38.12.1679 | Journal (article/letter/editorial) | | dikes from the Bingham and Tintic districts in central Utah. These dikes and flows appear to be comagmatic...magmas from El Chichon (Luhr et al., 1984) and Mt Pinatubo (Westrich & Gerlach, 1992) in recent years has...location of the Bingham and Tintic districts in central Utah (UT). Also shown is the boundary of the Great...field, located in the East Tintic Mountains of central Utah, consists of intermediate-tosilicic volcanic...the calc-alkaline EoceneāOligocene magmatism in central Utah (Best et al., 1968; Moore, 1973, 1993; Moore |  | | Report (volume) | | and climatic impact of the 1991 eruption of Mt. Pinatubo............ 399 Requirements fora climate-forcing...Physical Sciences American Museum of Natural History Central Park West at 79th St. New York, New York 10024-5102...typically pyrrhotite, but chalcopyrite, pentlandite, sphalerite or molybdenite also occur. Among sulfate minerals...and the environment. The 1991 activity of Mt. Pinatubo is described as a well-documented example of the...secondary ion image focal plane, such that only the central area of 15-15 um is being analyzed. The normal |  | | Journal (article/letter/editorial) | | presence of anhydrite in the erupted magmas (e.g., Pinatubo in 1991), have been linked to short-term, high-impact...step size to cover the SKā£ peak and background. Sphalerite and barite were used as reference materials to...wavelength of SKā£ was measured relative to the sphalerite standard. Figure 1 illustrates typical smoothed...smoothed SKā£ peak profiles for the barite and sphalerite standards and the difference in the peak position...Example of the SKā£ peak profiles measured in sphalerite and barite standards normalized to relative intensities |  | | Book (volume) | | Mio-Pliocene Crustal Compression in the Southern Philippines Bruce D, Rohrlach and Robert R, Loucks ................453 The Porphyry Cu-Au/Mo Deposits of Central E urasia:1_ Tectonicļ¼Geologic & Metallogenic Setting...........467 The Porphyry Cu-Au/Mo Deposits of Central Eurasia: 2. The AJmalyk (Kal'makyr-Dalnee) and...mineralisation in two locations in Mindanao, Philippines. During the next 15 years on his many excursions...and the similar aged Tampakan deposit in the Philippines (see Rohrlach and Loucks, also in this puiblication) |  | Oyarzun, Roberto, Lillo, Javier, Oyarzun, Jorge, Higueras, Pablo (2007) Plate Interactions, Evolving Magmatic Styles, and Inheritance of Structural Paths: Development of the Gold-Rich, Miocene El Indio Epithermal Belt, Northern Chile. International Geology Review, 49 (9) 844-853 doi:10.2747/0020-6814.49.9.844 | Journal (article/letter/editorial) | | combination of Miocene events in northern Chile (Coquimbo Region) that allowed for1Corresponding author, e-mail:...mation of the El Indio belt (Fig. 1). The Coquimbo region is located in northern Chile and is one of the...mineral deposits (Fig. 1). The Andean realm of this region hosts one of the most spectacular belts of hydrothermal...the alteration zones and deposits in the Coquimbo Region occur along a relatively narrow NNE-trending corridor...INDIO EPITHERMAL BELT 845 FIG. 1. The Coquimbo region, northern Chile and location of major mineral deposits |
|
