 | | 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) | | from volcanic and ultramafic regions on Luzon Island, the Philippines H.H. Schopka a,⇑, L.A. Derry a, C.A...Sciences, University of the Philippines, Diliman, Quezon City 1101, Philippines Received 7 April 2010; accepted...volcanic and ophiolitic rocks on Luzon Island, the Philippines. Luzon has a tropical climate and is volcanically...weathering and atmospheric carbon fluxes from Luzon, the Philippines the variables that have been investigated...tropical regions of Oceania and Central America should be high. The Philippines (Fig. 1a and b) is an ideal |  | Borisova, Anastassia Yu., Pichavant, Michel, Polvé, Mireille, Wiedenbeck, Michael, Freydier, Remi, Candaudap, Frédéric (2006) Trace element geochemistry of the 1991 Mt. Pinatubo silicic melts, Philippines: Implications for ore-forming potential of adakitic magmatism. Geochimica et Cosmochimica Acta, 70 (14) 3702-3716 doi:10.1016/j.gca.2006.04.030 | Journal (article/letter/editorial) | | element geochemistry of the 1991 Mt. Pinatubo silicic melts, Philippines: Implications for ore-forming potential...2006 Abstract The dacite pumice erupted from Mt. Pinatubo on June 15, 1991 (whole-rock, rhyolitic groundmass...minimum of 100 t Au and 5 · 105 t Cu from the Mt. Pinatubo magma. Our data suggest that intrusives having...Cl, Sr/Y, Pb/Ce, Mo/Ce, As/Ce and Sb/Ce in Mt. Pinatubo melts reflect the contribution of deep fluids derived...et al., Trace element geochemistry of the Mt. Pinatubo silicic melts 1997; Mungall, 2002). Understanding |  | Jakubowski, Ryan T., Fournelle, John, Welch, Sue, Swope, R. J., Camus, Patrick (2002) Evidence for magmatic vapor deposition of anhydrite prior to the 1991 climactic eruption of Mount Pinatubo, Philippines. American Mineralogist, 87 (8) 1029-1045 doi:10.2138/am-2002-8-901 | Journal (article/letter/editorial) | | prior to the 1991 climactic eruption of Mount Pinatubo, Philippines RYAN T. JAKUBOWSKI,1,* JOHN FOURNELLE...ABSTRACT Anhydrite (CaSO4) phenocrysts from Mount Pinatubo pumices show evidence of having responded dynamically...the magma at depth. At least a portion of the Pinatubo anhydrite phenocrysts provided substrates for...such as Nevado del Ruiz (Fournelle 1990) and Mount Pinatubo. It has been predicted experimentally that...1984). Mount Pinatubo pumice: chemistry and mineralogy Beginning in mid-March 1991, Mt. Pinatubo, a composite |  | | Journal (article/letter/editorial) | | S as SO2− (Fig. 2). For example, Mount Pinatubo in the 4 Philippines is well known for its anhydrite phenocrysts...its flank (Hattori & Keith, 2001). Magmas for the Pinatubo eruption products had high fO2, above FMQ + 2...geothermobarometry by Zhang and Audétat (2017); Pinatubo from Hattori (1993), Scaillet and Evans (1999)...submarine volcanic rocks, forming the Green Tuff region of propylitic alteration from Hokkaido to Kyushu...associated Lepanto high sulfidation Au deposit in Philippines, were formed at approximately 1.4 Ma (Arribas |  | Reich, Martin, Parada, Miguel A., Palacios, Carlos, Dietrich, Andreas, Schultz, Frank, Lehmann, Bernd (2003) Adakite-like signature of Late Miocene intrusions at the Los Pelambres giant porphyry copper deposit in the Andes of central Chile: metallogenic implications. Mineralium Deposita, 38 (7) 876-885 doi:10.1007/s00126-003-0369-9 | Journal (article/letter/editorial) | | giant porphyry copper deposit in the Andes of central Chile: metallogenic implications Received: 12 November...the Los Pelambres giant porphyry copper deposit, central Chile (32S). Located within the southern portion...Keywords Adakites Æ Giant porphyry copper deposits Æ Central Andes Introduction The genetic link between magmatism...crust (Cathles 1981; Sawkins 1990). The Andes of central Chile host some of the world’s largest porphyry...black line), and the volcanic gap separating the Central Volcanic Zone (CVZ) and the Southern Volcanic Zone |  | | Journal (article/letter/editorial) | | by Jones et al. (1967). Igneous activity in the region began in the Late Cretaceous with the intrusion...inclusions Zircon Anhydrite Magnetite Sphene Hornblende Biotite Melt inclusions Apatite Zircon Ilmenite...intergrowths similar to those described from Mt. Pinatubo (Baker and Rutherford, 1996; Pallister et al....a laboratory experiment of anhydrite-saturated Pinatubo dacite at 760 jC, 2200 bar, and MNO-buffered oxygen...‘‘SR8’’-similar experimental run products of Mt. Pinatubo dacite with the assemblage hornblende + magnetite |  | 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...and biotite (10 vol. %). Accessory minerals are zircon, apatite, magnetite and sphene. The biotite monzogranite...and lacks in hornblende. Accessory minerals are zircon, apatite, magnetite and rutile. The monzogranite...phenocrysts are present (3–5 vol. %). Apatite and zircon are accessory minerals. Anhydrite as mineral inclusions |  | | Journal (article/letter/editorial) | | Porphyry and Lepanto Epithermal Cu–Au Deposits, Philippines Jeffrey W. HEDENQUIST,1,2 Antonio ARRIBAS R.1...world-class Far Southeast (FSE) porphyry system, Philippines, includes the FSE Cu–Au porphyry deposit, the...the Mankayan mineral district of northern Luzon, Philippines (Hedenquist et al., 1998). The Lepanto high-sulfidation...Taran, 2013). Redox variation. Rocks of nearby Pinatubo volcano, approximately 200 km to the south, record...Comsti and Alfonso P. de la Cruz, Jr., both of Philippines Mines and Geosciences Bureau, and Rene Claveria |  | Cao, MingJian, Hollings, Pete, Cooke, David R., Evans, Noreen J., McInnes, Brent I.A., Qin, KeZhang, Li, GuangMing, Sweet, Gabe, Baker, Mike (2018) Physicochemical Processes in the Magma Chamber under the Black Mountain Porphyry Cu-Au Deposit, Philippines: Insights from Mineral Chemistry and Implications for Mineralization. Economic Geology, 113 (1) 63-82 doi:10.5382/econgeo.2018.4544 | Journal (article/letter/editorial) | | under the Black Mountain Porphyry Cu-Au Deposit, Philippines: Insights from Mineral Chemistry and Implications...deposit in the Baguio district, Northern Luzon (Philippines) is associated with late Miocene to Pliocene...coexisting magnetite-ilmenite, magmatic anhydrite, and zircon, consistently show a high oxidation state of >NNO+1...Introduction The Baguio district of Northern Luzon, Philippines (Fig. 1A) is considered one of the world’s...Yonsei University user 64 CAO ET AL. 18O 120O Luzon 123O Fig.B Manila 126O A 120O32' 120O34' |  | | Journal (article/letter/editorial) | | , 2009). The Caraja¤s province is part of the Central Amazonian province (Tassinari & Macambira, 2004)...assemblage of primary accessory minerals includes zircon, apatite, magnetite, titanite, and allanite. In...microscope-scale textural criteria indicate that apatite, zircon, magnetite and allanite are early crystallized...four localities with a portable drill core. The central parts of the cores exhibit no apparent interaction...1998). As an example, the experimental work on the Pinatubo dacite discussed below comes from a study of a |  | 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...3a-c). The accessory minerals include apatite, zircon, ilmenite, magnetite, pyrrhotite, pyrite, and ...biotite) and minor accessory minerals (apatite, zircon, ilmenite, magnetite, pyrrhotite, pyrite, and chalcopyrite)...trace PT E element data are listed in Appendix 1. Zircon grains from the gabbro (sample ZK205-627), diorite...separation. The freshest, unbroken, and representative zircon grains that were selected and mounted in epoxy |  | Schaarschmidt, Anna, Klemd, Reiner, Regelous, Marcel, Voudouris, Panagiotis C., Melfos, Vasilios, Haase, Karsten M. (2021) The formation of shoshonitic magma and its relationship to porphyry-type mineralisation: the Maronia pluton in NE Greece. Lithos, 380. 105911pp. doi:10.1016/j.lithos.2020.105911 | Journal (article/letter/editorial) | | beneath Eurasia since the Cretaceous, and the Aegean region (Fig. 1) has been extending since 35 Ma due na...Oligocene sediments and volcanic rocks in the central part and by greenschist-facies rocks of the Circum...clinopyroxene, biotite, Kfeldspar, apatite, amphibole, zircon, magnetite, ilmenite, titanite, and minor quartz...consist of quartz, plagioclase, K-feldspar, apatite, zircon and titanite, with secondary chlorite, sericite...K-feldspar, biotite and apatite, and accessory zircon, white mica, rutile, pyrite and chalcopyrite. The |  | | Journal (article/letter/editorial) | | from Mount Pinatubo (Philippines), Volcán Popocatépetl (Mexico), Satsuma– Iwojima (Japan) and Mount St...Fe–S–O melt, degassing, magma mixing, Pinatubo, Popocatépetl, Mount St. Helens, Bingham, Tintic, Satsuma–Iwojima...suite d’échantillons provenant du mont Pinatubo (Philippines), du volcan Popocatépetl (Mexique), Satsuma–Iwojima...Tower, 8741 Paseo de Roxas Blvd., Makati City, Philippines 1233 38#5-oct.00-2188-12 1233 23/11/00, 13:14...Fe–S–O immiscible, dégazage, mélange de magmas, Pinatubo, Popocatépetl, mont St. Helens, Bingham, Tintic |  | | Journal (article/letter/editorial) | | petrology; Barclay et al., 1998), and the 1991 Pinatubo magma contained 6–6.5 wt.% water (based on experimental...Earth. Seismic profiles at Mount Vesuvius are interpreted to require a central stock underneath the main...to eruption. Crowley et al. (2007) present U–Pb zircon ages from the Bishop Tuff suggesting magma accumulated...from system to system. CO2 in glass from the 1991 Pinatubo eruption ranges from ∼280–420 ppm (Scaillet and...relatively common (Shinohara, 2008). During the 1991 Pinatubo eruption some 20 million tons of SO2 was released |  | Hidalgo, Paulo J., Vogel, Thomas A., Rooney, Tyrone O., Currier, Ryan M., Layer, Paul W. (2011) Origin of silicic volcanism in the Panamanian arc: evidence for a two-stage fractionation process at El Valle volcano. Contributions to Mineralogy and Petrology, 162 (6) 1115-1138 doi:10.1007/s00410-011-0643-2 | Journal (article/letter/editorial) | | May 2011 Ó Springer-Verlag 2011 Abstract In the Central American Volcanic Arc, adakitelike volcanism has...magma-type as well as to contrast its origin with other Central American silicic magmas. The Quaternary volcanic...K2O/Na2O, when compared with other Quaternary Central American volcanics at similar SiO2. These chemical...research is part of a series of studies in the Central American Volcanic Arc (CAVA) that focus on the...Vogel et al. 2004, 2006; Deering et al. 2007). This region is of importance because it has developed some |  | | Journal (article/letter/editorial) | | north-western region of the Santa Cruz province (and the Aysen region of Chile) to the region of the Magellan's...ablation-inductively coupled plasma-mass spectrometry on single zircon grains and the results indicate an age of 19.1...hornblende, magnetite and rarely pyroxene, garnet, and zircon are also present as accessory minerals. J.I....biotite, K-feldspar, and minor hornblende, pyroxene, zircon, and garnet. They show highly angular shapes and...Syvitski, 1995). For example, the 1991 eruption of Mount Pinatubo increased the suspended load concentration |  | Cao, Mingjian, Evans, Noreen J., Reddy, Steven M., Fougerouse, Denis, Hollings, Pete, Saxey, David W., McInnes, Brent I.A., Cooke, David R., McDonald, Bradley J., Qin, Kezhang (2019) Micro- and nano-scale textural and compositional zonation in plagioclase at the Black Mountain porphyry Cu deposit: Implications for magmatic processes. American Mineralogist, 104 (3) 391-402 doi:10.2138/am-2019-6609 | Journal (article/letter/editorial) | | porphyry (Black Mountain porphyry Cu-Au deposit, Philippines) was characterized for major and trace elements...nanoscale exsolution texture as constrained by zircon crystallization temperatures, the retention of...nanoscale, Black Mountain porphyry Cu deposit, Philippines Introduction Textural and compositional zoning...studied (Grove et al. 1983). The Baguio district (Philippines) is one of the world’s premier mineral provinces...Manila (Philipines), at the southern end of the Luzon Central Cordillera. The geology and geochronology of |  | | Journal (article/letter/editorial) | | homepage: www.elsevier.com/locate/lithos Contrasting zircon Hf–O isotopes and trace elements between ore-bearing...ore-bearing and ore-barren adakitic rocks in central-eastern China: Implications for genetic relation to Cu–Au...2012 Available online 7 November 2012 Keywords: Zircon Hf–O isotopes Ce4 +/Ce3 + Oxygen fugacity Adakite...intrusions in the Lower Yangtze River belt (LYRB), central-eastern China, and their genetic association with...debated. This study presented integrated in-situ zircon U–Pb–Hf–O isotopic and trace elemental data for |  | | Journal (article/letter/editorial) | | Samples of one anhydrite-bearing magma, the 1991 Pinatubo dacite, have been experimentally crystallised...equivalents of the Pinatubo dacite should be present in arc plutonic complexes. KEY WORDS: Pinatubo, El Chichon... The eruption of anhydrite-bearing magmas by Pinatubo, El Chichon and other volcanoes has drawn the...Rutherford (1988) for El Chichon trachyandesite and Mount St Helens dacite show the combined effect of changing...a common feature of silicic magma systems. The Pinatubo dacite and El Chichon trachyandesite are unusual |  | | Journal (article/letter/editorial) | | missing. Here we use U–Pb geochronological dating of zircon crystals sampled from a seven-million-year-old... upper crustal pluton in Elba, Italy. The zircon crystals were found as inclusions within the cores and...system using high-precision U–Pb geochronology on zircon inclusions extracted from cores and rims of K-feldspar...are cross-cut by the structurally underlying the Mount Capanne pluton, a ∼200 km3 body composed of three...San Piero). Both the San Martino porphyry and the Mount Capanne pluton host spectacular megacrystic Kfs |  | RodrÍguez, Carolina, Sellés, Daniel, Dungan, Michael, Langmuir, Charles, Leeman, William (2007) Adakitic Dacites Formed by Intracrustal Crystal Fractionation of Water-rich Parent Magmas at Nevado de Longaví Volcano (36·2°S; Andean Southern Volcanic Zone, Central Chile) Journal of Petrology, 48 (11) 2033-2061 doi:10.1093/petrology/egm049 | Journal (article/letter/editorial) | | Volcano (3628S; Andean SouthernVolcanic Zone, Central Chile) UNIVERSITE¤ DE GENE'VE, DE¤PARTEMENT DE...chemically distinct from other evolved magmas of the region in that they have high La/Yb (15^20) and Sr/Y (60^90)...plate margins originates in the high-temperature region of the asthenospheric mantle wedge as a consequence...position of the SVZ relative to the Northern, Central, and Austral Volcanic zones (NVZ, CVZ, and AVZ...primarily of thick andesitic flows that radiate from a central vent. Basalts and basaltic andesites predominate |  | | Journal (article/letter/editorial) | | produce widespread lava flows (e.g., Hawaii or the central Oregon Cascades, United States) can also disrupt...intereruption periods at a given volcano or volcanic region (Smith 1991). During intereruption periods, average... 2000; Mount St. Helens, United States, 1980; Nevado del Ruiz, Colombia, 1985; Mount Pinatubo, Philippines...Philippines, 1991; Mount Merapi, Indonesia, 1994 and 2010; Montserrat, West Indies, 1995–present; and Chaitén...currents and mantled by tephra fall near Mount Pinatubo (Philippines), July 15, 1991. Note complete removal |  | Wang, Shi-Wei, Zhou, Tao-Fa, Yuan, Feng, Fan, Yu, Zhang, Le-Jun, Song, Yu-Long (2015) Petrogenesis of Dongguashan skarn-porphyry Cu-Au deposit related intrusion in the Tongling district, eastern China: Geochronological, mineralogical, geochemical and Hf isotopic evidence. Ore Geology Reviews, 64. 53-70 doi:10.1016/j.oregeorev.2014.06.012 | Journal (article/letter/editorial) | | June 2014 Available online 19 June 2014 Keywords: Zircon U-Pb dating Hf isotope Trace elements Plagioclase...hosted in quartz diorite and quartz monzodiorite. Zircon U-Pb age and geochemical studies show that the...in Tibet, Arasbaran-Kerman porphyry Cu belt in central Iran; Hezarkhani, 2006; Hezarkhani and Williams-Jones...2008; Xu et al., 2004, 2012). This paper focuses on zircon U-Pb dating, Hf isotopes, geochemistry, and composition...Mesozoic igneous rocks (J-K) are widespread in the region, including more than 70 intrusions and consisting |  | | Report (chapter) | | mineralization in the Karacaali Magmatic Complex, central Anatolia, Turkey OKAN DELIBAŞ1*, YURDAL GENÇ1...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) (Göncüoğlu...et al. 2001; İlbeyli et al. 2004) situated in central Turkey, east of Ankara (Fig. 1). This crustal segment...İlbeyli 2005). Since Early Cretaceous times this region is thought to have undergone a complex magmatic |
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