 | | Journal (article/letter/editorial) | | Belt, with emphasis on the El Algarrobo iron deposits (Atacama region, Chile) J.-J. M~nard D~partement...1993/Accepted: 8 March 1994 Abstract. North of E1 Algarrobo (one of the four main deposits of the Chilean...the iron-mineralization (magnetite-etrmolite/actinolite-apatite)is related to clinoand orthopyroxene...magnetite, locally associated with tremolite-actinolite and apatite, accompanied by secondary sulphides...rocks, along well-developed regional deep faults (Atacama Fault system). The present study deals with the |  | Reich, Martin, Simon, Adam C., Deditius, Artur, Barra, Fernando, Chryssoulis, Stephen, Lagas, Gonzalo, Tardani, Daniele, Knipping, Jaayke, Bilenker, Laura, Sánchez-Alfaro, Pablo, Roberts, Malcolm P., Munizaga, Rodrigo (2016) TRACE ELEMENT SIGNATURE OF PYRITE FROM THE LOS COLORADOS IRON OXIDE-APATITE (IOA) DEPOSIT, CHILE: A MISSING LINK BETWEEN ANDEAN IOA AND IRON OXIDE COPPER-GOLD SYSTEMS?. Economic Geology, 111 (3) 743-761 doi:10.2113/econgeo.111.3.743 | Journal (article/letter/editorial) | | LOS COLORADOS IRON OXIDE-APATITE (IOA) DEPOSIT, CHILE: A MISSING LINK BETWEEN ANDEAN IOA AND IRON OXIDE...Geology, FCFM, Universidad de Chile, Plaza Ercilla 803, Santiago 8370450, Chile Geothermal Center of Excellence...(CEGA), FCFM, Universidad de Chile, Plaza Ercilla 803, Santiago 8370450, Chile of Earth and Environmental...Pacífico (CAP), Brasil N 1050, Vallenar 1611167, Región de Atacama, Chile Abstract Although studies have...and as veinlets associated with magnetite and actinolite that postdate the main igneous magnetite stage |  | | Journal (article/letter/editorial) | | Cobre Iron Oxide Copper Gold district, Northern Chile Irene del Real, John F.H. Thompson, Jorge Carriedo...Cobre Iron Oxide Copper Gold district, Northern Chile, Ore Geology Reviews (2018), doi: https://doi.org/10...Cobre Iron Oxide Copper Gold district, Northern Chile Irene del Real (1), John F.H. Thompson (1), Jorge...Cobre, Candelaria Norte, Granate, Alcaparrosa, Atacama Kozan, Las Pintadas). The district, which is characterized...The earliest event was dominated by magnetite-actinolite in stratigraphically-controlled mantos and extensive |  | | Journal (article/letter/editorial) | | E1Romeral,Chile ARTHUR A. BOOKSTROM Abstract E1 Romeral iron mine is in the coastaliron province of northern...northern Chile, a north-trending belt of magnetitedepositsabout 30 km wide and 600 km long. Iron at E1 Romeral...which magnetiteis microscopically intergrown with actinolite. The Main orebodyis a lenticular, steeplydipping...within and around the orebodiescontainmagnetite,actinolite,plagioclase(An•.2_a•.),diopside,clinozoisite...biotitic diorite aplite dikes, by formationof late actinolite-magnetite-apatite veins,by locally intenseargillizationand |  | Rojas, Paula A., Barra, Fernando, Reich, Martin, Deditius, Artur, Simon, Adam, Uribe, Francisco, Romero, Rurik, Rojo, Mario (2018) A genetic link between magnetite mineralization and diorite intrusion at the El Romeral iron oxide-apatite deposit, northern Chile. Mineralium Deposita, 53 (7) 947-966 doi:10.1007/s00126-017-0777-x | Journal (article/letter/editorial) | | diorite intrusion at the El Romeral iron oxide-apatite deposit, northern Chile Paula A. Rojas 1 & Fernando...GmbH Germany, part of Springer Nature 2018 Abstract El Romeral is one of the largest iron oxide-apatite...Coastal Cordillera of northern Chile. The Cerro Principal magnetite ore body at El Romeral comprises massive...massive magnetite intergrown with actinolite, with minor apatite, scapolite, and sulfides (pyrite ± chalcopyrite)...oxide-copper-gold deposits. New 40Ar/39Ar dating of actinolite associated with the main magnetite ore stage |  | | Journal (article/letter/editorial) | | is located in the Coastal Cordillera of northern Chile and southern Peru, where it is part of a volcano-plutonic...an upward and outward zonation from magnetite-actinolite-apatite to specular hematitechlorite-sericite...Henry in Australia and Candelaria and Mantoverde in Chile. Notwithstanding their modest economic contributions...Position of the central Andean IOCG belt of northern Chile–southern Peru with respect to the Jurassic–Early...Cordillera and immediately adjoining areas of northern Chile and southern Peru (latitudes 13– 3330¢S; Fig. 1) |  | Oyarzun, Roberto, Lillo, Javier, Oyarzun, Jorge, Maturana, Hugo, Canut, Claudio, Andreani, Sebastian (2010) Restrictive definition of asbestos and the assessment of potential health hazards: insights from Northern Chile. International Geology Review, 52 (9) 955-963 doi:10.1080/00206810903211278 | Journal (article/letter/editorial) | | potential health hazards: insights from Northern Chile 1938-2839 Geology Review, 0020-6814 TIGR International...Serena, Chile; dCentro de Salud de La Higuera (La Higuera Health Centre), La Higuera, Chile (Accepted...riebeckite (crocidolite), anthophyllite, tremolite and actinolite are regarded as asbestos (s.s.). This implies...in the small mining town of La Higuera, northern Chile, may shed some light into this matter, because this...during 1950–1979. The ore was extracted from actinolite-rich, copper-iron vein deposits. We show that |  | Mathur, R., Marschik, R., Ruiz, J., Munizaga, F., Leveille, R. A., Martin, W. (2002) Age of Mineralization of the Candelaria Fe Oxide Cu-Au Deposit and the Origin of the Chilean Iron Belt, Based on Re-Os Isotopes. Economic Geology, 97 (1) 59-71 doi:10.2113/gsecongeo.97.1.59 | Journal (article/letter/editorial) | | de Geología y Geofísica, Universidad de Chile, Santiago, Chile RICHARD A. LEVEILLE, Phelps Dodge do Brasil...Minera Candelaria, Tierra Amarilla, III Region, Chile Abstract Re-Os isotopes are used to determine the...iron oxide Cu-Au mineralization at Candelaria, Chile, and to explore possible genetic links with the...initial 187Os/188Os ratio for sulfide from Bronce mine, a small satellite of the Candelaria orebody, is...deposits. Introduction about 20 km south of Copiapó, Chile (Figs. 1 and 2A). Candelaria is one of several deposits |  | Rodriguez-Mustafa, Maria A., Simon, Adam C., del Real, Irene, Thompson, John F.H., Bilenker, Laura D., Barra, Fernando, Bindeman, Ilya, Cadwell, David (2020) A Continuum from Iron Oxide Copper-Gold to Iron Oxide-Apatite Deposits: Evidence from Fe and O Stable Isotopes and Trace Element Chemistry of Magnetite. Economic Geology, 115 (7). 1443-1459 doi:10.5382/econgeo.4752 | Journal (article/letter/editorial) | | Mathematical Sciences (FCFM), Universidad de Chile, Santiago 8380450, Chile 4PetraScience 5Department 6Department...Sciences (FCFM), Universidad de Chile, Plaza Ercilla 803, Santiago 8380450, Chile 7Department of Geological...magnetite and H stable isotope abundances for actinolite from the Candelaria IOCG deposit and Quince IOA...and 7.80 ± 0.07‰ for Candelaria. For cogenetic actinolite, δD values range from –41.7 ± 2.10 to –39.0 ±...compositions of magnetite and the H isotope signature of actinolite fingerprint a magmatic source reservoir for ore |  | Salazar, Eduardo, Barra, Fernando, Reich, Martin, Simon, Adam, Leisen, Mathieu, Palma, Gisella, Romero, Rurik, Rojo, Mario (2020) Trace element geochemistry of magnetite from the Cerro Negro Norte iron oxide−apatite deposit, northern Chile. Mineralium Deposita, 55 (3) 409-428 doi:10.1007/s00126-019-00879-3 | Journal (article/letter/editorial) | | Negro Norte iron oxide−apatite deposit, northern Chile Eduardo Salazar 1,2 & Fernando Barra 1,2 Rurik Romero...deposit located in the Chilean Iron Belt, northern Chile. The Cerro Negro Norte magnetite ore is hosted in...episodes: an early Fe–oxide event with magnetite and actinolite followed by four stages that comprise the main...hydrothermal event (hydrothermal magnetite + actinolite; calcic–sodic alteration + sulfides; quartz–tourmaline...deposits in the Coastal Cordillera of northern Chile. Keywords Magnetite . Trace element geochemistry |  | | Journal (article/letter/editorial) | | assemblages include albite, scapolite, pyroxene, actinolite, apatite, titanite, epidote and calcite. The...Ca-rich minerals, which include albite, scapolite, actinolite, clinopyroxene, apatite, titanite, epidote and...Fe± Cu±Au deposits in the coastal batholith of Chile. These deposits are commonly dominated by iron oxides...(Reeve et al. 1990) and in the coastal batholith of Chile (e.g. Espinoza et al. 1996). In deeper level Fe-oxide±Cu±Au...scapolite, actinolite, magnetite, titanite; Wang and Williams 1996), Osborne (albite±actinolite±magnetite; |  | Escolme, Angela, Cooke, David R., Hunt, Julie, Berry, Ron F., Maas, Roland, Creaser, Robert A. (2020) The Productora Cu-Au-Mo Deposit, Chile: A Mesozoic Magmatic-Hydrothermal Breccia Complex with Both Porphyry and Iron Oxide Cu-Au Affinities. Economic Geology, 115 (3). 543-580 doi:10.5382/econgeo.4718 | Journal (article/letter/editorial) | | pp. 543–580 The Productora Cu-Au-Mo Deposit, Chile: A Mesozoic Magmatic-Hydrothermal Breccia Complex...breccia complex in the Coastal Cordillera of northern Chile. The current resource, which includes the neighboring...seen throughout the Coastal Cordillera of northern Chile. Introduction Iron-oxide copper gold (IOCG) deposits...In the Mesozoic Coastal Cordillera of northern Chile, IOCG, magnetite-apatite, and porphyry-Cu deposits...whereas the Tropezón Cu-Mo-(Au) deposit in northern Chile is described as an IOCG deposit with porphyry features |  | Barra, Fernando, Reich, Martin, Selby, David, Rojas, Paula, Simon, Adam, Salazar, Eduardo, Palma, Gisella (2017) Unraveling the origin of the Andean IOCG clan: A Re-Os isotope approach. Ore Geology Reviews, 81. 62-78 doi:10.1016/j.oregeorev.2016.10.016 | Journal (article/letter/editorial) | | (CEGA), FCFM, D Universidad de Chile, Plaza Ercilla 803, Santiago, Chile Department of Earth Sciences...Barra Departamento de Geología, Universidad de Chile, Chile fbarrapantoja@ing.uchile.cl Phone: 56-2-29784532...IOCG clan in the Coastal Cordillera of northern Chile, comprises the PT iron oxide-Cu-Au sensu stricto...deposits constitute the second source of copper in Chile, after porphyry Cu-Mo systems, whereas SC IOAs...and D Barreal Seco, three IOAs: Los Colorados, El Romeral, Carmen, and two Manto-type TE deposits: |  | | Journal (article/letter/editorial) | | Earth. In 2017, the Central Andes accounted for the mine production of around 39% of the world’s copper,...Central Chile to southern Peru, whereas the youngest and easternmost extend from central Chile/Argentina...includes some of the world largest copper deposits (Chile is the world’s leading copper producer, with Peru...Paleocene-Early Oligocene porphyry copper belt (Chile). Figure 3 Typical stockwork in a porphyry deposit...“A–B” veins. Porphyry copper deposit of Atlántida (Chile). Photo width: 5 cm. Figure 2 A–B vein Panoramic |  | | Book | | Universidad de Concepci6n Casilla 4107 Concepci6n, Chile ISBN 978-3-642-88284-5 DOI 10.1007/978-3-642-88282-1.... . . . 37 The Metalliferous Ore Deposits of Chile and Argentina, and Their Geologic Framework J. Oyarzun.... . . . . . . . . . . 147 X Contents El Aguilar Mine: An Ordovician Sediment-Hosted Stratiform Lead-Zinc...Sulfides in the Greenstone Belt of South-Central Chile - An Overview G. Alfaro and S. Callao . . . . ....Formation and Massive Sulfide Orebodies, South-Central Chile: Geologic and Isotopic Aspects S. Callao, G. Alfaro |  | Knipping, Jaayke L., Bilenker, Laura D., Simon, Adam C., Reich, Martin, Barra, Fernando, Deditius, Artur P., Wӓlle, Markus, Heinrich, Christoph A., Holtz, François, Munizaga, Rodrigo (2015) Trace elements in magnetite from massive iron oxide-apatite deposits indicate a combined formation by igneous and magmatic-hydrothermal processes. Geochimica et Cosmochimica Acta, 171. 15-38 doi:10.1016/j.gca.2015.08.010 | Journal (article/letter/editorial) | | Excellence (CEGA), Universidad de Chile, Plaza Ercilla 803, Santiago, Chile 3 School of Engineering and...del Pacífico (CAP) Brasil N 1050, Vallenar, Región de Atacama, Chile. *e-mail: jaaykek@umich.edu Abstract...a formation model for IOA deposits in northern Chile that involves crystallization of magnetite microlites...(Sillitoe, 2003) and such as in the Missouri iron province (Seeger, 2003), whereas there is debate about...deposits contain only accessory amounts (e.g., El Laco, Chile; Nyström and Henriquez, 1994). While the origin |  | Rojas, Paula A., Barra, Fernando, Deditius, Artur, Reich, Martin, Simon, Adam, Roberts, Malcolm, Rojo, Mario (2018) New contributions to the understanding of Kiruna-type iron oxide-apatite deposits revealed by magnetite ore and gangue mineral geochemistry at the El Romeral deposit, Chile. Ore Geology Reviews, 93. 413-435 doi:10.1016/j.oregeorev.2018.01.003 | Journal (article/letter/editorial) | | and gangue mineral geochemistry at the El Romeral deposit, Chile Paula A. Rojas, Fernando Barra, Artur...and gangue mineral geochemistry at the El Romeral deposit, Chile, Ore Geology Reviews (2018), doi: https://doi...and gangue mineral geochemistry at the El Romeral deposit, Chile Paula A. Rojas1, Fernando Barra1, Artur...Excellence (CEGA), Universidad de Chile, Plaza Ercilla 803, Santiago, Chile. 2 School of Engineering and...Pacífico (CAP), Pedro Pablo Muñoz 675, La Serena, Chile. Revised version Dec, 2017 Ore Geology Reviews |  | | Journal (article/letter/editorial) | | Candelaria-Punta del Cobre Iron Oxide Cu-Au(-Zn-Ag) Deposits, Chile ROBERT MARSCHIK†,* Lehrstuhl für Lagerstättenlehre...batholith near Copiapó, Chile. This belt includes the large Candelaria mine and a group of middle- and...of magmatic origin. Anhydrite from the Candelaria mine paragenetically overlaps with chalcopyrite. Fluid...0361-0128/01/3208/1799-28 $6.00 batholith, southeast of Copiapó, Chile (Fig. 1, Table 1). This belt, referred to as the...FONTBOTÉ 71° a) 25° 70° 69° 70˚15' W b) Atacama Fault Zone Teresita Copiapó N Taltal Providencia |  | Zhang, Zuoheng, Hong, Wei, Jiang, Zongsheng, Duan, Shigang, Li, Fengming, Shi, Fupin (2014) Geological characteristics and metallogenesis of iron deposits in western Tianshan, China. Ore Geology Reviews, 57. 425-440 doi:10.1016/j.oregeorev.2013.09.012 | Journal (article/letter/editorial) | | and pyroxene + albite + K-feldspar − epidote + actinolite alterations are dominated around ore bodies in...considered to be an important large-scale iron ore province and one of the top ten succeeders to metallic...environment (Che et al., 1996), or in large igneous province related to mantle plume (Xia et al., 2004b). Most...minerals, including garnet, diopside, wollastonite, actinolite, epidote, sericite and calcite etc. (Fig. 4a–b)...other sulfides is later than that of magnetite, actinolite, and epidote (see graphs and interpretation in |  | | Journal (article/letter/editorial) | | third type (Type 3) of amphibole is anhedral actinolite occurring along the boundary or the cracks of...content ranging from 14.2 to 17.1 wt.%. The Type 3 actinolite shows the lowest FeO (4.6–6.4 wt.%) and highest...relatively reduced and enriched in Fe. The Type 3 actinolite formed by coupled dissolution and reprecipitation...altered monzonite. Instead, amphibole, particularly actinolite, which is inferred as the first hydrous mineral...Hydrological Investigation Company of Shandong Province, 1986). hornblende (vol. 30%), subhedral–euhedral |  | Palma, Gisella, Barra, Fernando, Reich, Martin, Valencia, Victor, Simon, Adam C., Vervoort, Jeff, Leisen, Mathieu, Romero, Rurik (2019) Halogens, trace element concentrations, and Sr-Nd isotopes in apatite from iron oxide-apatite (IOA) deposits in the Chilean iron belt: Evidence for magmatic and hydrothermal stages of mineralization. Geochimica et Cosmochimica Acta, 246. 515-540 doi:10.1016/j.gca.2018.12.019 | Journal (article/letter/editorial) | | Geology, FCFM, Universidad de Chile, Santiago, Plaza Ercilla 803, Chile Andean Geothermal Center of Excellence...(CEGA), FCFM, Universidad de Chile, Santiago, Plaza Ercilla 803, Chile c School of Earth and Environmental...Cretaceous age from the Coastal Cordillera of northern Chile. Apatite textures and compositions show evidence...elements; Sr-Nd isotopes; Iron oxide-apatite deposits; Chile 1. INTRODUCTION Apatite [Ca10(PO4)6(F, Cl, OH)]...with variable amounts (1–50% modal) of apatite, actinolite and/or pyroxene, and are considered as the copper-poor |  | Chen, H., Clark, A. H., Kyser, T. K., Ullrich, T. D., Baxter, R., Chen, Y., Moody, T. C. (2010) Evolution of the Giant Marcona-Mina Justa Iron Oxide-Copper-Gold District, South-Central Peru. Economic Geology, 105 (1) 155-185 doi:10.2113/gsecongeo.105.1.155 | Journal (article/letter/editorial) | | Perú Hierro Perú S.A.A, Avenida República de Chile 262, Jesús Maria, Lima 11, Perú Tinto Mining and...40Ar/39Ar geochronology of biotite, phlogopite, actinolite, cummingtonite, and K-feldspars, reveal a history...Jurassic andesites experienced intense albite-actinolite alteration at ca. 157 Ma, i.e., contemporaneous...shallowmarine analog of the Pliocene El Laco magnetite deposits of northern Chile, the Mina Justa Cu sulfide ...exposed in the Cordillera de la Costa of northern Chile and central and southern Peru, are now recognized |  | | Journal (article/letter/editorial) | | Uul iron oxide–copper–gold deposit in Dornogobi Province, Southeastern Mongolia Luvsannyam Oyunjargal1...Chandmani Uul deposit is located in Dornogovi province, Southeastern Mongolia. Iron oxide ores are hosted...Mongolia, such as the Tesiin Gol province in western Mongolia, Khentii province in central Mongolia, and Kherlen...The Chandmani Uul deposit is located in Dundgobi province, about 680 km southeast of Ulaanbaatar and about...Covelline Malachite Limonite K-feldspar Garnet Actinolite Epidote Quartz Calcite Chlorite Sericite Tourmaline |  | Sarjoughian, Fatemeh, Habibi, Iraj, Lentz, David R., Azizi, Hossein, Esna-Ashari, Amir (2020) Magnetite compositions from the Baba Ali iron deposit in the Sanandaj-Sirjan zone, western Iran: Implications for ore genesis. Ore Geology Reviews, 126. 103728pp. doi:10.1016/j.oregeorev.2020.103728 | Journal (article/letter/editorial) | | mineral assemblages are massive magnetite, epidote, actinolite, tourmaline, quartz, calcite, and pyrite. Using...prograde minerals, such as andradite, salite, actinolite, epidote, titanite, and idocrase, and also retrograde...the deposit. Gangue minerals mainly consist of actinolite, epidote, tourmaline, biotite, calcite, quartz...coarse pyrite crystals, (e) tourmaline banded, (f) actinolite and biotite banded, (g, h, i) Photomicrographs...Py: pyrite, Qz: quartz, Tur: tourmaline, Act: actinolite, Pl: plagioclase, Ap: apatite, Ttn: titanite |  | | Journal (article/letter/editorial) | | the 100 Ma intrusions of the coastal iron province of Chile and of coastal Peru (e.g. Brookstrom, 1977;...LCF12, crossed nicols). (D) Subsolidus edenite– actinolite (in quartz monzodiorite) showing characteristic...plane-polarised light). ab, albite; ed, edenite– actinolite; bi, biotite; hb, hornblende; kf, K-feldspar;...polymineralic crenulate layers) described from the Henderson mine, Colorado, by Shannon et al. (1982). Patches of...Total 15.62 15.02 Mgc 73.95 73.10 Mineral Edenite Actinolite a 38.10 2.16 13.57 16.40 0.31 14.63 b.d. 0 |
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