 | | Journal (article/letter/editorial) | | Indonesia) and Nazareño (10 Ma; Cordillera Shila, southern Peru) were studied to investigate processes related...West Java, Indonesia, and Nazareño, ShilaPaula district, southern Perú, in order to examine the spatial...collected from surface exposures and underground mine levels. The mineralogy was determined from polished...extents of 200 to 250 m. The veins contain mainly quartz-adularia-Mn silicates-calcite assemblages. The...10-cm-thick veinlets containing calcite alone or quartz + calcite. The sequence continues with bands 561 |  | Chauvet, Alain, Bailly, Laurent, André, Anne-Sylvie, Monié, Patrick, Cassard, Daniel, Tajada, Fernando Llosa, Vargas, Juan Rosas, Tuduri, Johann (2006) Internal vein texture and vein evolution of the epithermal Shila-Paula district, southern Peru. Mineralium Deposita, 41 (4) 387-410 doi:10.1007/s00126-006-0068-4 | Journal (article/letter/editorial) | | vein evolution of the epithermal Shila-Paula district, southern Peru Received: 28 July 2005 / Accepted:...Springer-Verlag 2006 Abstract The epithermal Shila-Paula Au–Ag district is characterized by numerous veins hosted...volcanic rocks of the Western Cordillera (southern Peru). Field studies of the ore bodies reveal a systematic...by the orientation of fluid-inclusion planes in quartz crystals of the host rock. In areas where this...vein-filling stages are identified. stage 1 is a quartz– adularia–pyrite–galena–sphalerite–chalcopyrite–electrum– |  | André-Mayer, Anne-Sylvie, Leroy, Jacques, Bailly, Laurent, Chauvet, Alain, Marcoux, Eric, Grancea, Luminita, Llosa, Fernando, Rosas, Juan (2002) Boiling and vertical mineralization zoning: a case study from the Apacheta low-sulfidation epithermal gold-silver deposit, southern Peru. Mineralium Deposita, 37 (5) 452-464 doi:10.1007/s00126-001-0247-2 | Journal (article/letter/editorial) | | low-sulfidation epithermal gold-silver deposit, southern Peru Received: 28 May 2001 / Accepted: 31 October 2001...in the Shila district, 600 km southeast of Lima in the Cordillera Occidental of Arequipa Province, southern...southern Peru. The vein mineralization is found in Early to Middle Miocene calc-alkaline lava flows and volcanic...assemblage and cross-cutting veinlets with subhedral quartz crystals, Mn-bearing calcite and rhombic adularia... Christensen Keywords Epithermal gold-silver Æ Peru Æ Andes Æ Boiling A.-S. André-Mayer (&) Æ J.L |  | | Journal (article/letter/editorial) | | Layo (Cu, Sn, As, Au) epithermal deposit (Southern Peru) E. M a r c o u x 1, Y. Mo~lo 2, and J. P. Mil6si...nearby large epithermal veins at Orcopampa and Shila. It also supports the genetic relationship that...de Layo et des gisements voisins de Orcopampa et Shila. Elle contribue ~trenforcer le lien fr6quemment...vein deposits are located in the Arequipa district of Southern Peru, 620 km southeast of Lima (Fig. 1)...~ o LIMA 0 BRAZIL ORCOPAMPA ~ ..~'" (Ag-Au) SHILA (Au-Ag) ._. ~ (~iLLO~I~,~', (Ag-Au) =~ JULLUJ~AFORMATION |  | | Journal (article/letter/editorial) | | INTERMEDIATE-SULFIDATION PALLANCATA DEPOSIT, AYACUCHO, PERU Jorge E. GAMARRA-URRUNAGA§ International Minerals...to later open space infill resembles the Shila Paula district (Chauvet et al. 2006). Fluid inclusion petrography...of the system. The core is still undisclosed by mining works, but the available geochemical evidence (logAg/log...pearceite–polybasite, acanthite, uytenbogaardtite, Peru Introduction The Pallancata vein occurs in the...southeast of Lima in the district of Coronel Castañeda, Parinacochas province, Ayacucho department, at |  | | Journal (article/letter/editorial) | | of wrench shear zones in the case of Shila gold mines (south Peru); (ii) remobilisation of metal in volcanic-hosted...the formation of mesothermal gold deposits (Bruès mine, Spain). All these examples clearly demonstrate...vein; structure; textures; infilling; breccia; comb quartz; pull-apart; exploration; pre-existing structures;...com/journal/minerals Minerals 2019, 9, 56 2 of 22 improve mining exploration strategies. I will present and discuss...opening versus crystal growth (see below). Comb quartz is commonly related to (Figure 3a) (i) a supersaturated |  | Carrino, T. A., Crosta, A. P., Toledo, C. L. B., Silva, A. M., Silva, J. L. (2015) Geology and Hydrothermal Alteration of the Chapi Chiara Prospect and Nearby Targets, Southern Peru, Using ASTER Data and Reflectance Spectroscopy. Economic Geology, 110 (1) 73-90 doi:10.2113/econgeo.110.1.73 | Journal (article/letter/editorial) | | Chapi Chiara Prospect and Nearby Targets, Southern Peru, Using ASTER Data and Reflectance Spectroscopy Thais...70910-900 Brasília – DF, Brazil Abstract Southern Peru contains several small- and medium-sized epithermal...applied to the thermal infrared bands to detect quartz- and carbonates-bearing targets, respectively....carbonate host rocks, the quartz-bearing units of the Yura Group, and the quartz-poor unit associated with...analysis using the fuzzy logic technique. Introduction Peru is the main gold-producing country in Latin America |  | Echavarria, L., Nelson, E., Humphrey, J., Chavez, J., Escobedo, L., Iriondo, A. (2006) Geologic Evolution of the Caylloma Epithermal Vein District, Southern Peru. Economic Geology, 101 (4) 843-863 doi:10.2113/gsecongeo.101.4.843 | Journal (article/letter/editorial) | | Geologic Evolution of the Caylloma Epithermal Vein District, Southern Perú LEANDRO ECHAVARRIA,* ERIC NELSON...Carmen N°180, El Vivero de Monterrico, Surco-Lima, Peru AND ALEX IRIONDO** Department of Geological Sciences...silver- and base metal-rich Caylloma epithermal district in the Tertiary volcanic belt of southern Perú...from a rhyolite dome). Gangue minerals include quartz, calcite, rhodonite, rhodochrosite, pyrite and...alteration types include silicification (quartz-adularia and quartz-illite) and propylitization (chlorite |  | Carrino, Thais Andressa, Crósta, Alvaro Penteado, Toledo, Catarina Labouré Bemfica, Silva, Adalene Moreira (2015) Unveiling the hydrothermal mineralogy of the Chapi Chiara gold prospect, Peru, through reflectance spectroscopy, geochemical and petrographic data. Ore Geology Reviews, 64. 299-315 doi:10.1016/j.oregeorev.2014.07.012 | Journal (article/letter/editorial) | | hydrothermal mineralogy of the Chapi Chiara gold prospect, Peru, through reflectance spectroscopy, geochemical and...hydrothermal mineralogy of the Chapi Chiara gold prospect, Peru, through reflectance spectroscopy, geochemical and...hydrothermal mineralogy of the Chapi Chiara gold prospect, Peru, through reflectance spectroscopy, geochemical and...hydrothermal mineralogy of the Chapi Chiara gold prospect, Peru, through T reflectance spectroscopy, geochemical...and petrographic data RI P ABSTRACT Southern Peru contains important epithermal Au-Ag (± base metals) |  | Gibson, Peter Craig, McKee, Edwin H., Noble, Donald C., Swanson, Kirk E. (1995) Timing and interrelation of magmatic, tectonic, and hydrothermal activity at the Orcopampa District, southern Peru. Economic Geology, 90 (8) 2317-2325 doi:10.2113/gsecongeo.90.8.2317 | Journal (article/letter/editorial) | | TECTONIC, AND HYDROTHERMAL AT THE ORCOPAMPA DISTRICT, SOUTHERN PERU ACTIVITY PETER CRAIG GIBSON,* MackaySchool...laharic breccias intercaat theOrcopampa district,southern Peru(Fig.1).Thesedata lated with flows of two-pyroxene...locatednorth-northwest of the city of Arequipa(Fig. 1). angular discordance in the mine area, by the Manto tuff, a...phenocryst-rich rhyolite ash-flow tuff (Fig. 2). The Manto Shila, and Suickutambo.Severalof the silver veins at OrcooftheChinch6n...llapse about 18 km southwest of the Orcopampa district at about20 small-scale miningcontinued intermittently |  | | Journal (article/letter/editorial) | | sufficiently developed in the exploration programs of many mining camp’s strategies. A few compilations have been...of Structural Geology in mineral exploration and mining [9]. In addition to these four compilations, only...provided from the Copper deposit of the Tongling Ore district of Eastern China. Concerning other orebodies than...concentration and structure in quartz veins from the Hodgkinson Province, northeastern Australia. Mineral...vein evolution of the epithermal Shila-Paula district, southern Peru. Mineral. Dep. 2006, 41, 387–410 |  | | Journal (article/letter/editorial) | | predominantly epithermal, Au–Ag deposits in USA, Peru, Russia, Indonesia, and New Zealand (Barton et al...controlled, generally steeply dipping, and predominantly quartz, formed in extensional settings, often in strongly...pyroclastic units in the area and showed that the mine is hosted in flow-banded and spherulitic Broken...Hills Rhyolite contains phenocrysts of plagioclase, quartz, and biotite. The Hikuai Ignimbrite is pumice and...lithic rich and contains crystals of plagioclase, quartz, hypersthene, augite, and iron–titanium oxides |  | | Journal (article/letter/editorial) | | to 30 m thick. Gold production was entirely from quartz veins. The mineralization is embedded in the following...in this environment. The world-class Martha Hill mine in the Hauraki goldfield of New Zealand (Figs. 1...state of structural information in the Martha Hill mine up to 1994, as presented by Cargill (1994), and...deeper levels of the mine similar to the downward disappearance of microcrystalline quartz and adularia (Brathwaite...overseas. Regional and Local Geology The Martha Hill mine is part of the Hauraki goldfield on the Coromandel |  | | Journal (article/letter/editorial) | | Epithermal Silver Veins of the Arcata District, Southern Peru HUGO CANDIOq'rI DE LOS Rios, MauricioHochschildy..., S.A.,AvenidaRep•blica de Panamd3055, Lima 27, Peru DONALD C. NOBLE, MackaySchoolof Mines,Universityof...regularthan lower limits,andbarrenprismaticcalcite_+quartz,in part chalcedonic, extendsabovethe productive...increasingproductionof thesebasemetal-richores,the mine beganto producePb and Zn concentrates in November1989...greater depthsthan in the producingveinsof the district. Fluid inclusionstudiesgive Th between175ø and |  | | Book (edition) | | XVII SRI KAILASH SHILA 150 XVIII SRI LAKSHMI SHANK 152 XIX SRI SHALAGRAM SHILA 154 XX GLOSSARY...Venus transmits its cosmic energy through diamonds, quartz crystals, zircons, goshenites, white topaz, white...of solid color. Influence of Diamond / colorless quartz If Venus is well placed in your horoscope: The...White (colorless) sapphire, white topaz, zircon and quartz are ruled by Venus; 7) Beryl, apatite and tourmaline...citrine, white zircon White topaz, white sapphire, quartz, blue spinel Spessartite, orange zircon, fibrolite |  | | Journal (article/letter/editorial) | | The corals are contained in micrite with fine quartz grains, generally, with remnants of moluscs and...Jurassic corals were described from patch reefs in Peru (Wells, 1953; Senowbari-Daryan and Stanley, 1994)...differentiation comparable to that from the Tethyan province but it is not always adequately mirrored in taxonomy...River border and borders of its tributaries: the Shila-i- us Syahsanghak, Hasan Sansalaghay, and the...fauna of the region; 2) from the valley of the Shila-i-Syahsanghak River (site 862), and 3) from the |  | Zhang, Jian, Huang, Wenting, Liang, Huaying, Wu, Jing, Chen, Xilian (2018) Genesis of the Jianzhupo Sb–Pb–Zn–Ag deposit and formation of an ore shoot in the Wuxu ore field, Guangxi, South China. Ore Geology Reviews, 102. 654-665 doi:10.1016/j.oregeorev.2018.09.026 | Journal (article/letter/editorial) | | South China is the largest deposit in the Wuxu district and is hosted by Devonian limestone and mudstone...shoot and stage II jamesonite–sphalerite–calcite–quartz (JSCQ) veins. We use homogenization temperatures...al., 1993; Zhao et al., 2016). In the Jianzhupo mine, weak Sb–Pb–Zn–Ag–Sn mineralization (cassiterite–sulfide)... Gangue minerals are mainly calcite, dolomite, quartz, and sericite. Based on crosscutting relationships...e– carbonate–quartz (JSCQ) vein mineralization (Fig. 3a and d); and (III) pyrite–quartz–calcite vein |  | | Journal (article/letter/editorial) | | A SpecialIssueDevoted to the Mineral Depositsof Peru Preface ULRICH PETERSEN, Departmentof Earth and...PerubarS.A.,Juan de Arona 830 (Of 90I), Lima 27, Peru AND DONALD C. NOBLE MackaySchoolof Mines, Universityof...Accordingto Purser(1971) Spanishcolonialsilver mining faced three main problems:(1) downward drop in...wasmostlyusedfor the treatment of silver and gold ores in Peru, Bolivia, and Mexico (RodriguezHoyle, 1974). In...warsof independencein the 1820sthe Peruvianmetal mining industrycollapsedand then recoveredslowly (Fischer |  | Chinchilla, Darío, Ortega, Lorena, Piña, Rubén, Merinero, Raúl, Moncada, Daniel, Bodnar, Robert J., Quesada, Cecilio, Valverde, Antonio, Lunar, Rosario (2016) The Patricia Zn–Pb–Ag epithermal ore deposit: An uncommon type of mineralization in northeastern Chile. Ore Geology Reviews, 73. 104-126 doi:10.1016/j.oregeorev.2015.10.026 | Journal (article/letter/editorial) | | defined: (1) pre-ore stage is characterized by early quartz, pyrite and arsenopyrite, (2) base-metal and silver...acanthite) and (3) post-ore stage; characterized by late quartz, kutnohorite and minor sulfides (arsenopyrite,...(Sillitoe, 2010), and it further reappears in southern Peru (Los Chancas, Cotabambas, Antapaccay, and Ataspaca...1b). Geographically, it occurs in the Tarapacá Province, I Región, Chile, at latitude 19˚81'S and longitude...carried out by Herencia Resources Plc over historical mine workings that date back to the nineteenth century |  | | Journal (article/letter/editorial) | | at: No. 19, Beitucheng Western Road, Chaoyang District, 100029 Beijing, P.R. China. E-mail address:...metals for Mexico, the United States, Canada, Chile, Peru, Papua New Guinea, and Japan. Lindgren (1922, 1933)...such as deposition of bladed calcite, colloform quartz, and adularia, as well as the generation of steam-heated...minerals, quartz – sulfate (e.g., barite) as main gangue minerals (carbonate absent), and quartz – alunite...Lithocap: blankets of alunite, kaolinite, and vuggy quartz formed from acid leaching of condensation of a |  | | Journal (article/letter/editorial) | | Blesbokspruit: Impact assessment of dewatering of mine waters in the East Rand, South Africa—Alakendra...Roychoudhury and Michael F. Starke 1044 Impact of former mining activities on the uranium distribution in the River...2006 Estimation of potential pollution of waste mining dumps at Peña del Hierro (Pyrite belt, SW Spain)...precipitates during oxidation and neutralization of acid mine waters, Iberian pyrite belt—J. Sánchez España, E...(zircon) age of the quartz-feldspar porphyry dyke at the Lake George antimony mine, New Brunswick: Implications |  | Vishiti, Akumbom, Suh, Cheo Emmanuel, Lehmann, Bernd, Shemang, Elisha Mutum, Ngome, Njumbe Lionel Junior, Nshanji, Nfor Jones, Chinjo, Fonkwo Edmond, Mongwe, Oben Yoland, Egbe, Ashu Jones, Petersen, Sven (2018) Mineral chemistry, bulk rock geochemistry, and S-isotope signature of lode-gold mineralization in the Bétaré Oya gold district, south-east Cameroon. Geological Journal, 53 (6) 2579-2596 doi:10.1002/gj.3093 | Journal (article/letter/editorial) | | lode‐gold mineralization in the Bétaré Oya gold district, south‐east Cameroon | Cheo Emmanuel Suh1 | Bernd...mineralization in the Bétaré Oya gold district is related to a series of quartz–sulphide veins that define a steeply...small granitic intrusions. Quartz veins range from barren (massive quartz) to mineralized with textures...Correspondence Akumbom Vishiti, Department of Geology, Mining and Environmental Science, University of Bamenda...Vishiti and Cheo Emmanuel Suh, Department of Geology, Mining and Environmental Science, University of Bamenda |  | Rajabpour, Shahrokh, Jiang, Shao-Yong, Lehmann, Bernd, Abedini, Ali, Gregory, Daniel D. (2018) Fluid inclusion and O–H–C isotopic constraints on the origin and evolution of ore-forming fluids of the Cenozoic volcanic-hosted Kuh-Pang copper deposit, Central Iran. Ore Geology Reviews, 94. 277-289 doi:10.1016/j.oregeorev.2018.02.003 | Journal (article/letter/editorial) | | m). Fluids trapped in the early (quartz I) and main-ore stages (quartz II) yielded δ18Ofluid values of +5...Eocene-Oligocene volcanic units in the Markazi province of northwestern Iran, about 120 km SW of Tehran...is situated about 40 km ENE of Saveh, Markazi Province (Fig. 1a), and was discovered by National Iranian...scarcity of geochemical and petrographic data. Recent mining activity at the KuhPang Cu deposit created new...rhyodacite and andesite. This zone also contains vuggy quartz, indicative of high sulfidation veins (Rajabpour |  | | Journal (article/letter/editorial) | | Geology, v. 109, pp. 2051–2065 REINTERPRETATION OF QUARTZ TEXTURES IN TERMS OF HYDROTHERMAL FLUID EVOLUTION...Spatial and temporal variations in quartz textures and the types of quartz-hosted fluid inclusions in the...Bonanza-grade ore zones contain multiple generations of quartz with six distinct textures—crustiform, comb, microcrystalline...vein are mainly composed of comb quartz that is overgrown by later quartz with a variety of textures, including...petrographic features of fluid inclusions in quartz at the same mine level reveals three types of fluid conditions—intense |  | | Journal (article/letter/editorial) | | epithermal gold mineralization in the Rosario–Bunawan district, East Mindanao Ridge, Philippines Jochen Kolb...Springer-Verlag 2009 Abstract The Rosario–Bunawan district is situated about 200 km north of Davao City,...Southern Philippines. Gold is produced from the Co-O mine, containing about 2,034,000 t of ore at 10.9 g/t...Rosario–Bunawan district and the Co-O mine is confined to narrow (0.2–4 m) low-sulfidation quartz–chalcedony–calcite...auriferous veins. The auriferous Rosario–Bunawan district is situated between two splays of the Philippine |
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