| peridotite xenoliths at Pinatubo and Iraya volcanoes, Luzon arc, Philippines Masako Yoshikawa, Akihiro...peridotite xenoliths at Pinatubo and Iraya volcanoes, Luzon arc, Philippines, LITHOS (2016), doi: 10...R Philippines IP as inferred from peridotite xenoliths at Pinatubo and Iraya volcanoes, Luzon arc...Volcanology and Seismology (PHIVOLCS), Quezon City, Philippines d Faculty of Science, Fukuoka University, Fukuoka...Sciences, University of the Philippines, Diliman, Quezon City 1101, Philippines Christchurch City Council |
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Coldwell, B., Adam, J., Rushmer, T., Macpherson, C. G. (2011) Evolution of the East Philippine Arc: experimental constraints on magmatic phase relations and adakitic melt formation. Contributions to Mineralogy and Petrology, 162 (4) 835-848 doi:10.1007/s00410-011-0627-2 |
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| on a Pleistocene adakite from Mindanao in the Philippines have been used to establish near-liquidus and...relationships relevant to conditions in the East Philippines subduction zone. The experimental starting material...Adakite Volcanic arc Crystal fractionation Philippines Surigao Introduction Adakite is a term applied...an adakite from the Surigao peninsula in the Philippines, where adakitic rocks are prevalent (see Sajona...archipelago (Fig. 1). At its northern end, in southeast Luzon, the arc is fully mature but in its southern part |
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AUDETAT, A (2004) Magmatic anhydrite and calcite in the ore-forming quartz-monzodiorite magma at Santa Rita, New Mexico (USA): genetic constraints on porphyry-Cu mineralization. Lithos, 72 (3) 147-161 doi:10.1016/j.lithos.2003.10.003 |
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| by Jones et al. (1967). Igneous activity in the region began in the Late Cretaceous with the intrusion...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...part in this spreadsheet is based on the reaction edenite + albite = richterite + anorthite, as described...‘‘SR8’’-similar experimental run products of Mt. Pinatubo dacite with the assemblage hornblende + magnetite |
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(2008) Calcic amphiboles in peridotite xenoliths from Avacha volcano, Kamchatka, and their implications for metasomatic conditions in the mantle wedge, in Metasomatism in Oceanic and Continental Lithospheric Mantle. Special Publication, 293. Geological Society of London. 35-55 doi:10.1144/sp293.3 |
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| available elsewhere, except Iraya volcano, in the Philippines (see Arai et al. 2007). The volcanic front is...ARAI Fig. 1. Schematic map of the Kamchatka arc region, modified from Ishimaru et al. (2007, fig. 1)....been also reported from Iraya volcano, Luzon arc, Philippines (e.g. Arai et al. 1996, 2004). Arai et...the xenoliths suite from the Iraya volcano, Philippines (almost 90% of the total). There is no difference...magnesio-hornblende (tremolitic hornblende) at the rim of edenite (Table 1; Fig. 3e). The F-part is almost olivine |
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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 |
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| 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...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'...granodiorite Pliocene & Pleistocene intrusions Central Cordillera diorite complex Mafic Dike complex |
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Ridolfi, Filippo, Renzulli, Alberto, Puerini, Matteo (2010) Stability and chemical equilibrium of amphibole in calc-alkaline magmas: an overview, new thermobarometric formulations and application to subduction-related volcanoes. Contributions to Mineralogy and Petrology, 160 (1) 45-66 doi:10.1007/s00410-009-0465-7 |
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| andesite-rhyolite 5–40 B20 B5 B25 tr Iriga Philippines Basalt-andesite 7–23 B5 B10 1–9 Btr B2...1–5 B1 11 12 Lassen Mt. Bulusan California Philippines Andesite-dacite Basaltic andesite-rhyolite ...Basalt tr-24 B4 B12 B8 B3 B1 20 Pinatubo Philippines Basalt-dacite 13–29 9–35 B6 B19 21...Reventador, Ecuador; Shiveluch, Kamchatka; Pinatubo, Philippines; Rindjani, Indonesia; Egmont, New Zealand)...(New Zealand; Stewart et al. 1996), Mt. Butay (Philippines; Castillo et al. 1999), Narcondam (India; Pal |
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Deering, C. D. (2009) Cannibalization of an amphibole-rich andesitic progenitor induced by caldera-collapse during the Matahina eruption: Evidence from amphibole compositions. American Mineralogist, 94 (8) 1162-1174 doi:10.2138/am.2009.3135 |
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| cone-forming volcanism in the north and south, and a central region characterized by rhyolitic caldera-forming...1). Since the inception of volcanism in this central region, 1.6 Ma, >6000 km3 of rhyolitic magma has erupted...Location of the central Taupo Volcanic Zone (TVZ) North Island, New Zealand. (b) The central Taupo Volcanic...Ti-Tschermak (2SiT + MnM1-M3 = 2AlT + TiM1-M3) and edenite [SiT + A = AlT + (Na + K)A] exchanges in response...magnesiohornblende 0.4 magnesiohastingsite edenite edenite 0.6 Na+KA Rhyolite LowLow-silica rhyolite |
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Ayati, Farimah, Yavuz, Fuat, Asadi, Hooshang H., Richards, Jeremy P., Jourdan, Fred (2013) Petrology and geochemistry of calc-alkaline volcanic and subvolcanic rocks, Dalli porphyry copper–gold deposit, Markazi Province, Iran. International Geology Review, 55 (2) 158-184 doi:10.1080/00206814.2012.689640 |
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| kbar. Keywords: porphyry Cu–Au deposit; Dalli; Central Iran; Miocene; diorite; granodiorite; hornblende;...These porphyry centres, called the South Hill, Central Hill, and North Hill, crop out within a NE–SW-trending...locations of the main mineralized zones (South and Central Hills; from Dorsa plc. 2010). rocks and in qu...veins, with secondary (supergene) hematite. The Central Hill intrusions are more felsic (hornblende- and...ricite assemblage. The porphyry system at the Central Hill includes quartz-magnetite veinlets ranging |
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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 |
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| 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 |
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Zajacz, Zoltan, Halter, Werner (2009) Copper transport by high temperature, sulfur-rich magmatic vapor: Evidence from silicate melt and vapor inclusions in a basaltic andesite from the Villarrica volcano (Chile) Earth and Planetary Science Letters, 282 (1) 115-121 doi:10.1016/j.epsl.2009.03.006 |
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| reserved. 1. Introduction The 1991 eruption of Mount Pinatubo was characterized by a significant excess of...resided in a volatile phase in the dacitic magma of Pinatubo before eruption. Models that explain the origin...recrystallized to An~ 50 and amphibole (magnesiohornblende, edenite or actinolite) or clinopyroxene (pigeonite) (Fig...underlying mafic magma—evidence from Mount-Pinatubo, Philippines. Geology 21, 1083–1086. Hattori, K.,...evolution recorded in plagioclase zoning in 1991 Pinatubo eruption products. Am. Mineral. 81, 982–994. Hattori |
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ISHIZAKI, Yasuo, MASUBUCHI, Yoshiko, AONO, Yasuhiro (2009) Two types of dacitic pumices from the caldera-forming eruption of Numazawa Volcano, NE Japan. Journal of Mineralogical and Petrological Sciences, 104 (6) 356-373 doi:10.2465/jmps.070827b |
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| of the dacite that chamber ascended through the central part of the conduit that suffered low shear stress...breakage of phenocrysts during magma ascent along the region of high shear stress near the conduit walls. The...deposits: the 1991 eruption products of Pinatubo, Philippines (Pallister et al., 1996; Polacci et al.... 2005; Rosi et al., 2004). Both eruptions, at Pinatubo and Quilotoa, are characterized by crystal rich...were unzoned, and all belonged to hornblende and edenite according to the nomenclature of Deer et al. (1992) |
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Tang, Gong-Jian, Wang, Qiang, Wyman, Derek A., Li, Zheng-Xiang, Zhao, Zhen-Hua, Yang, Yue-Heng (2012) Late Carboniferous high εNd(t)–εHf(t) granitoids, enclaves and dikes in western Junggar, NW China: Ridge-subduction-related magmatism and crustal growth. Lithos, 140. 86-102 doi:10.1016/j.lithos.2012.01.025 |
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| Granitoid Enclave Dike Crustal growth Ridge subduction Central Asian Orogenic Belt a b s t r a c t We report...the Keramay area, of the western Junggar region of Central Asian Orogenic Belt (CAOB). Zircon U–Pb dating...granites. All granitoids, enclaves and dikes in this region have high positive εNd(t) (+ 7.13 to + 9.74) and...between crust- and mantle-derived magmas. The Central Asian Orogenic Belt (CAOB), also known as “the...2000). (b) Geological map of the western Junggar region (Tang et al., 2010). (c) Simplified geological map |
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Karsli, Orhan (2006) Pre-eruptive conditions revealed by mega- and pheno-cryst compositions from the Quaternary Erzincan Volcanics, Eastern Turkey: Insights into the magma processes. Geochemistry, 66 (4) 277-305 doi:10.1016/j.chemer.2006.01.004 |
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| compositions show a linear variation from ferro-edenite, edenite to pargasite from rhyolite to andesite. Pargasitic...which correspond to a depth of 410 km for storage region of the crust. The fO2 values vary from 14.25 to...as North Anatolian Strike Slip Fault Zone. This region recorded a northward subducting oceanic lithosphere...et al., 1997; S- engör et al., 2003). In this region, first collision-related volcanism ARTICLE IN...amphibole (after Leake et al., 1997) in ferro-edenite, edenite and pargasite. The mineralogical parameters |
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Ridolfi, Filippo, Renzulli, Alberto (2012) Calcic amphiboles in calc-alkaline and alkaline magmas: thermobarometric and chemometric empirical equations valid up to 1,130°C and 2.2 GPa. Contributions to Mineralogy and Petrology, 163 (5) 877-895 doi:10.1007/s00410-011-0704-6 |
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| Ecuador; Apacheta-Aguilucho Volcanic Complex, Andean Central Volcanic Zone, Chile; Cerro Jeu-Jepén pluton,...S_1992) barometers, and the _edenite_-tridimite (hereafter HB1_1994) and _edenite_-richterite (hereafter HB2_1994)...values. HB1_1994 and HB2_1994 are the _edenite_-tridimite and _edenite_-richterite hornblende-plagioclase thermometers...amphiboles from calc-alkaline volcanic rocks of Mount St. Helens (Washington), Soufrière Hills (West...Oxidized sulfur-rich mafic magma at Mount Pinatubo, Philippines. Contrib Mineral Petrol 146:750–761 De |
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Kiss, Balázs, Harangi, Szabolcs, Ntaflos, Theodoros, Mason, Paul R. D., Pál-Molnár, Elemér (2014) Amphibole perspective to unravel pre-eruptive processes and conditions in volcanic plumbing systems beneath intermediate arc volcanoes: a case study from Ciomadul volcano (SE Carpathians) Contributions to Mineralogy and Petrology, 167 (3) doi:10.1007/s00410-014-0986-6 |
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| the youngest volcano in the Carpathian–Pannonian region produced crystal-rich high-K dacites that contain...is the youngest volcano of Carpathian–Pannonian region and referred as a potentially active volcano (Szakács...the southeastern edge of the Carpathian–Pannonian region, and this is the youngest 123 Contrib Mineral...sketch map of the Carpathian–Pannonian region in Eastern-Central Europe. The cross-hatched areas show the...the Ti-tschermak [SiIV ? MgVI = AlIV ? TiVI] and edenite substitution [SiIV ? (h)A = AlIV ? (Na ? K)A]. |
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Humphreys, M.C.S., Edmonds, M., Christopher, T., Hards, V. (2009) Chlorine variations in the magma of Soufrière Hills Volcano, Montserrat: Insights from Cl in hornblende and melt inclusions. Geochimica et Cosmochimica Acta, 73 (19) 5693-5708 doi:10.1016/j.gca.2009.06.014 |
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| represent conditions on the margin of the storage region. 5696 M.C.S. Humphreys et al. / Geochimica et...phenocrysts from the andesite reflect control by the edenite substitution (SiT + [ ] = AlT + (Na + K)A) but...compositional variation can be explained by the edenite exchange, 20% by the Ti-Tschermak exchange and...compositional variation can be attributed to the edenite exchange. However, the good correlation between...Sato et al., 1999, 2005; Pinatubo, Philippines, Matthews et al., 1992; Mount St. Helens, USA, Rowe et |
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Nagasaki, Shiho, Ishibashi, Hidemi, Suwa, Yukiko, Yasuda, Atsushi, Hokanishi, Natsumi, Ohkura, Takahiro, Takemura, Keiji (2017) Magma reservoir conditions beneath Tsurumi volcano, SW Japan: Evidence from amphibole thermobarometry and seismicity. Lithos, 278. 153-165 doi:10.1016/j.lithos.2017.01.011 |
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| earthquakes occur at depths up to ~12.5 km in the general region around the volcano (Figure 2). The aseismic zone...similar to that observed beneath Pinatubo volcano in the Philippines (Hammer and Rutherford, 2003; Mori...and the group-II amphibole is magnesiohornblende–edenite. The group-II amphibole is relatively coarse and...and examined the relationships among them; the region between the broken NU lines in Figure 8a indicates...of the group-I and group-II melts are within the region of natural magmas, indicating that the estimated |
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Bachmann, Olivier, Dungan, Michael A. (2002) Temperature-induced Al-zoning in hornblendes of the Fish Canyon magma, Colorado. American Mineralogist, 87 (8) 1062-1076 doi:10.2138/am-2002-8-903 |
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| 8 atoms per formula unit = apfu) is due to the edenite exchange [TSi + A■ = TAl + A(Na + K)] and another... Platoro complex Western San Juan cluster 0 Central San Juan cluster 40 80 km Present day extent of...a series of eight calderas, which comprise the central San Juan caldera cluster (Lipman 2000). The distributions...(Cosca et al., 1991); B6Rhod = rhodonite mineral mount MINM25-53 (provided by Astimex Scientific limited);...TAl (~0.8 apfu) are accounted for by: (1) the edenite exchange (TSi + A■ = TAl + A(Na + K); ~50% of the |
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Chelle-Michou, Cyril, Chiaradia, Massimo (2017) Amphibole and apatite insights into the evolution and mass balance of Cl and S in magmas associated with porphyry copper deposits. Contributions to Mineralogy and Petrology, 172 (11) doi:10.1007/s00410-017-1417-2 |
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| magnesio-hornblende (58%) and a lesser proportion are edenite (19%; only in the porphyries), tschermakite (13%;...Variations in Altot are mostly accounted for by the edenite exchange reaction, while the Al-tschermak substitution...the Al-tschermak substitution rather than by the edenite substitution. In the gabbrodiorite complex, amphibole...(see below). Importantly, the predominance of the edenite exchange reaction in amphibole from Coroccohuayco...8 Amphibole composition in per formula unit. a Edenite exchange. b Al-tschermak exchange. c Cl vs Altot |
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Shane, Phil, Smith, Victoria C. (2013) Using amphibole crystals to reconstruct magma storage temperatures and pressures for the post-caldera collapse volcanism at Okataina volcano. Lithos, 156. 159-170 doi:10.1016/j.lithos.2012.11.008 |
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| can be accounted for by temperature-sensitive edenite and Ti-Tschermak exchange mechanisms, and ‘Plagioclase...continental Australian plate. The geology of the region is extensively reviewed elsewhere (Wilson et al...exchanges are: Avacancy+ TSi = A(Na+K)+ IVAl (edenite exchange) and BMn+ TSi= CTi+ IVAl (Ti-Tschermak...CTi (~0.38 apfu), indicating the importance of edenite and Ti-Tschermak exchange processes. “Plagioclase...three substitution mechanisms. On this basis, edenite and Ti-Tschermak exchange processes account for |
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Joy, Brian R., Evans, Bernard W. (2014) CLINOFERROGEDRITE IN THE CONTACT-METAMORPHOSED BIWABIK IRON FORMATION, NORTHEASTERN MINNESOTA. The Canadian Mineralogist, 52 (3) 533-554 doi:10.3749/canmin.52.3.533 |
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| 1.1) that was grown from fused and S-augmented Pinatubo dacite in the laboratory at 780 ºC, 2.2 and 3...referred to in the petrological literature as edenite (ed) and tschermakite (ts), respectively (mineral...experimental work on fused, S-augmented samples of Pinatubo dacite. For reasons given below, we choose to...sample 98D14-150, although it is common (as ferro-edenite and ferro-pargasite) in nearby samples of the Intermediate...calcic, aluminous amphibole in which both the edenite and tschermakite components are prominent, analyses |
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Zhu, Jing-Jing, Richards, Jeremy P., Rees, Chris, Creaser, Robert, DuFrane, S. Andrew, Locock, Andrew, Petrus, Joseph A., Lang, Jürgen (2018) Elevated Magmatic Sulfur and Chlorine Contents in Ore-Forming Magmas at the Red Chris Porphyry Cu-Au Deposit, Northern British Columbia, Canada. Economic Geology, 113 (5) 1047-1075 doi:10.5382/econgeo.2018.4581 |
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| Afton/Ajax, and Brenda), and Jago et al. (2014; Mount Milligan). Downloaded from https://pubs.geoscienceworld...Several porphyry Cu ± Au ± Mo deposits occur in the region, hosted by Late Triassic to Early Jurassic arc-related...Magnesio-hastingsite Sadanagaite 3.0 ΔFMQ (Na+ + K+) (apfu) Edenite (B) 0.5 2.0 Magnesio-ferri-hornblende A Actinolite...lower main zone of the Lorraine deposit, north-central British Columbia: A replacement-style alkalic Cu-Au...Red Mountain porphyry molybdenum deposit, south-central Yukon: Canadian Institute of Mining and Metallurgy |
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Blundy, J., Cashman, K. (2008, January 1st) Petrologic Reconstruction of Magmatic System Variables and Processes. Reviews in Mineralogy and Geochemistry Vol. 69. Mineralogical Society of America p.179-239. doi:10.2138/rmg.2008.69.6 |
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| monitoring record. These examples are drawn largely from Mount St. Helens volcano, for which there are abundant...variables (Fig. 1). Our generic volcano comprises a region of principal magma storage, typically referred...chamber to the surface above and to the magma source region below. Intensive parameters can vary spatially...inputs 3 Feeder system Crystal rich magma Source region Figure 1. Schematic of a sub-volcanic magma system...recharged via a feeder system from a deeper source region and discharged via a shallow conduit system connected |
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Pietranik, Anna, Holtz, Francois, Koepke, Jürgen, Puziewicz, Jacek (2009) Crystallization of quartz dioritic magmas at 2 and 1 kbar: experimental results. Mineralogy and Petrology, 97 (1) 1-21 doi:10.1007/s00710-009-0070-5 |
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| Ca-amphiboles including range of compositions (pargasite, edenite, Mg-hornblende, tschermakite, actinolite- Leake...An–anorthite, Or–orthoclase, Amp–amphibole, Ed–edenite, MgHb–magnesiohornblende, lowCa Amp–low Calcium...An–anorthite, Or–orthoclase, Amp–amphibole, Ed–edenite, MgHb–magnesiohornblende, Cumm–cummingtonite, Bt–biotite...et al. (1997) nomenclature, are classified as edenite and magnesiohornblende in the LPD composition and...from cores to rims showing edenite, Ti and Tschermak substitutions. Edenite and Ti substitutions were |
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Jiang, Jiuyang, Zhu, Yongfeng (2020) Petrogenesis of the early Carboniferous Xilinhot gabbro–diorite pluton in central Inner Mongolia: Magma evolution and tectonic significance. Lithos, 354. 105339 doi:10.1016/j.lithos.2019.105339 |
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| Carboniferous Xilinhot gabbro–diorite pluton in central Inner Mongolia: Magma evolution and tectonic significance...Carboniferous Xilinhot gabbro–diorite pluton in central Inner Mongolia: Magma evolution and tectonic significance...Carboniferous Xilinhot gabbro–diorite pluton in central Inner Mongolia: Magma evolution and tectonic significance...Abstract The Xilinhot gabbro–diorite pluton in central Inner Mongolia comprises a re microgabbro–hornblende...northern orogenic belt of na the southeastern Central Asian Orogenic Belt (CAOB). Zircons separated from |
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