 | | 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...200 to 250 m. The veins contain mainly quartz-adularia-Mn silicates-calcite assemblages. The mineralizing...40 39 al., 1999). The Ar/ Ar ages obtained on adularia crystals from the Ciguha and Ciurug veins (2.05 |  | 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...vein-filling stages are identified. stage 1 is a quartz– adularia–pyrite–galena–sphalerite–chalcopyrite–electrum–...C., Luis N. Saenz 447-449, Jesus Maria, Lima 21, Peru J. Tuduri ISTO, CNRS-UMR 6113, University of Orléans |  | 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...quartz crystals, Mn-bearing calcite and rhombic adularia crystals; and finally (3) veinlets and geodal filling...temperature and a loss of H2S. The presence of adularia and platy calcite and of co-existing liquid-rich |  | | 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...eastern vetas of Layo appears to have preceded an "adularia-sericite" epithermal mineralization expressed...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) |  | | 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...com/journal/minerals Minerals 2019, 9, 56 2 of 22 improve mining exploration strategies. I will present and discuss...comb and fibrous textures from the Hercynian mining district of Tras-os-Montes, Galicia, Spain. Red lines...Regional-Scale Structures within Volcanic Domains The Shila-Paula district is one of the numerous Au/Ag low sulfidation |  | 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...hydrothermal alteration age of 18.35 ± 0.17 Ma (adularia in vein wall rock), and postmineralization ages...calcite, rhodonite, rhodochrosite, pyrite and minor adularia, illite, barite, and helvite. Ore minerals include |  | 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) | | ARTICLE The origin of Ag–Au–S–Se minerals in adularia-sericite epithermal deposits: constraints from...Springer-Verlag 2012 Abstract The 7.1 Ma Broken Hills adularia-sericite Au–Ag deposit is currently the only producing...in the supergene environment. The Broken Hills adularia-sericite epithermal Au–Ag deposit in the Hauraki...predominantly epithermal, Au–Ag deposits in USA, Peru, Russia, Indonesia, and New Zealand (Barton et al...Hauraki Goldfield contains approximately 50 Au–Ag adularia-sericite type epithermal deposits and a few porphyrycopper |  | | 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...upperlevels.Ganguemineralsin the ore zonearequartz,adularia, calcite, rhodochrosite,Mn silicates,and chlorite...chlorite with minor fluorite and late siderite. Adularia, radialaggregates of white fibrouscalcite,andchloriteare...increasingproductionof thesebasemetal-richores,the mine beganto producePb and Zn concentrates in November1989 |  | | Journal (article/letter/editorial) | | 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...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...Coromandel peninsula and location of the Martha Hill mine, modified after Skinner (1986), Brathwaite et al |  | | 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 |  | | 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)...deposition of bladed calcite, colloform quartz, and adularia, as well as the generation of steam-heated waters...as primary gangue minerals, illite / smectite – adularia as key proximal alteration minerals. IS deposits:...ore minerals, quartz - manganiferous carbonate ± adularia ± manganiferous silicate ± barite as gangue minerals |  | | Journal (article/letter/editorial) | | features of fluid inclusions in quartz at the same mine level reveals three types of fluid conditions—intense...an average grade of 15.1 g/t of Au (Nodatamagawa Mining Development, Inc., 1995). From 1988 to 2006, the...an average grade of 40 g/t of Au (Nodatamagawa Mining Development, Inc., 1995; Shimizu et al., 1998)...an estimated ~3 tonnes Au was produced before the mine closed, based on a calculation using the data of...500 m b SW Schematic cross section NE ‘A (m) mine level 150 90 30 -30 A No. 3 vein No. 2 vein No |  | | Journal (article/letter/editorial) | | The most voluminous of these stages were quartz-adularia veins with well-developed colloform and crustiform...detailed structural analyses of epithermal quartz-adularia veins (e.g., Berger et al., 2003; Chauvet et al...Geology The Golden Cross mine exploited shallow epithermal AuAg–bearing quartz-adularia veins at the southeastern...with 40Ar/39Ar dates for replacement and vein adularia of 6.9 Ma (Mauk and Hall, 2004). The Golden Cross...to as the Empire zone. The most recent phase of mining in this area concentrated on the Empire zone, located |  | | 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...mineralization in the Rosario–Bunawan district and the Co-O mine is confined to narrow (0.2–4 m) low-sulfidation...auriferous veins. The auriferous Rosario–Bunawan district is situated between two splays of the Philippine |  | | Journal (article/letter/editorial) | | Uytenbogaardtite, Ag3AuS2, in the Bullfrog mining district, Nevada. Canadian Mineralogist, 31, 89–98....vein evolution of the epithermal Shila-Paula district, southern Peru. Mineralium Deposita, 41, 387–410...C. (2013) The origin of Ag-Au-S-Se minerals in adularia-sericite epithermal deposits: constraints from...epithermal deposits at Pongkor, Indonesia, and Nazareno, Peru. Economic Geology, 97, 561–571. Gurevich, V.M., |  | Tuduri, Johann, Chauvet, Alain, Barbanson, Luc, Bourdier, Jean-Louis, Labriki, Mohamed, Ennaciri, Aomar, Badra, Lakhlifi, Dubois, Michel, Ennaciri-Leloix, Christelle, Sizaret, Stanislas, Maacha, Lhou (2018) The Jbel Saghro Au(–Ag, Cu) and Ag–Hg Metallogenetic Province: Product of a Long-Lived Ediacaran Tectono-Magmatic Evolution in the Moroccan Anti-Atlas. Minerals, 8 (12). 592pp. doi:10.3390/min8120592 | Journal (article/letter/editorial) | | Jbel Saghro Au(–Ag, Cu) and Ag–Hg Metallogenetic Province: Product of a Long-Lived Ediacaran Tectono-Magmatic...as part of a long-lived silicic large igneous province. The area comprises two lithostructural complexes...Keywords: structural control; silicic large igneous province; ignimbrite flare-ups; ash-flow caldera; epithermal;...of Triassic when the Central Atlantic Magmatic Province (CAMP) was emplaced [9–11]. According to Ernst...geodynamical environment at the origin of such a silicic province remain insufficiently understood, although Moume |  | | Report (issue) | | Sonora, Mexico Greg E. McKelvey, Phelps Dodge Mining Company Brenda B. Houser, Past-President, Arizona...explore the mining history and mineral deposits of one of the country's most important mining regions; further...cyanide and toxic metals released from the Summitville mine on downstream water supplies and crops. The distribution...distribution and movement of metals from mining districts of Coeur D'Alene, Idaho, and Rio Tinto, Spain...ore genesis from Bolivia, Brazil, Chile, Mexico, Peru, and the Venezuelan Andes. Our cosponsors and I |  | | Book | | Universidad Nacional de lngenieria, and Newmont Peru Limited Gerente de Exploraciones Av. Jose Galvez...Galvez Barrenechea 218, Urb. Corpac Lima-San Isidro, Peru Prof. Dr. ESTEBAN CEDILW Facultad de Minas, Metalurgia...place in September 1986 in Cusco, Peru, sponsored by Multiciencias (Peru) and UNESCO. During this seminar...Latorre, Director of the Multiciencias courses in Peru strongly supported the whole organization of the...Occurrences in the Paleozoic of the Yauli Dome, Central Peru H. W. Kobe . . . . . . . . . . . . . . . . . . |  | | Conference Proceedings (Volume) | | copper mine in the very north of Sweden. Mining operations started in 1968 and the current mining depth...area of the Kristineberg VHMS deposit, Skellefte district, Sweden .......................................A. Massive Zn-Cu-Pb deposits in the Røros ore district, Norway: setting and formation ................Matos The Jörn granitoid complex, Skellefte mining district, Sweden: petrography, lithogeochemistry and...for VHMS deposits, Kristineberg area, Skellefte District, Sweden ..................................... |  | | Journal (volume) | | Bingham Mining District, Utah, John Mason Boutwell (A. C. T.); Geology of the Tonopah Mining District, Nevada...and perhaps equiv- The specimen was from the province of Pernambuco. A an second genus of longirostrate...regretted, however, that so Rainy Lake region were district was not field relationships. It is to be ...Foster Bain. Economic Geology of the Bingham Mining District, Utah. By John Mason Boutwell. With a Section...from the top or from great depths. either The district is a steady producer of low grade ore, and is |
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