 | | Journal (article/letter/editorial) | | sulfide mineralization is present in the Julcani mining district, Peru, as fracture fillings in Tertiary volcanics...are used to determinemetal ratios throughoutthe district. The changesin metal ratios are large and systematic...solutions. In the southeast.ernpart of the district, Herminia-Lucrecia, ratios change systematicallyaway...changesin three other mineralized areas of the district indicate general domal zoning. In general,Pb/Cu...depositional factors. Ag/Pb and Ag/Cu have maxima (Herminia), minima (Ag/Cu in Mimosa), or decreasemonotonically |  | | Journal (article/letter/editorial) | | pp. 931-949 Geologyof theJulcaniMiningDistrict,Peru I,JLRICHPETERSEN, DONAnDC. NOBLE.MARIOJ. ARENAS...(Ag-Bi-Pb-Cu-W-Au) mineralizationat the Julcanidistrict, central Peru, is geneticallyrelatedto a geologicallybrief pulseof...zoning patterns. Three of thesehydrothermalsystems(Herminia, Mimosa, and Estela) have now been studiedmineralogicallyand...detailedmetal ratio contouring.The central part of the district, characterized by the pyritic gold-tungstenmineralization...Tentadora, appearsto be the innermostzone of the Herminia system. Solutionsmoving southeast from Tentadora |  | | Report (issue) | | metal-bearing, epithermal deposits of Mexico and Peru by Nora K. Foley Open File Report 84-633 This...districts Guanajuato District, Guanajuato, Mexico References Geologic map of Guanojuato District, Mexico Pachuca-Real...del Monte District, Hidalgo, Mexico References Geologic map of Pachuca-Real del Monte District, Mexico...Colqui District, Lima, Peru References Geologic map of Colqui District, Peru Julcani District, Huancavelica...Huancavelica, Peru References Geologic map of Julcani District, Peru 1 2 3 4 4 10 11 12 16 18 19 24 25 26 |  | | Report (issue) | | X-ray Powder Pattern: Mina Herminia, Julcani Mining District, Huancavelica, Peru. 3.369 (100), 2.911 (58)...19 18.22 99.24 (1) Mina Herminia, Julcani Mining District, Huancavelica, Peru; average of 15 electron...barite, pyrite. Distribution: From the Level 390, Vein 14, Mina Herminia, Julcani Mining District, Huancavelica...Huancavelica, Peru. Name: Honors Terry C. Wallace Jr., former professor of geosciences and mineral museum...a new mineral from Mina Herminia, Julcani Mining District, Huancavelica, Peru. Amer. Mineral., 98, 1310-1314 |  | | Journal (article/letter/editorial) | | and Ag-sulphosalts in a zoned ore deposit, Julcani, Peru R. O. SACK1,* 1 2 AND P. C. GOODELL2 Department...ABSTR ACT The sulphide ores from the Julcani mining district (Peru) display many retrograde reactions that...Fahlores [~(Cu,Ag)10(Zn,Fe)2(Sb,As)4S13] from the Herminia mine exhibit pronounced downstream enrichments in...retrograde reactions, Julcani District, Peru. Introduction THE Julcani mining district in Peru is located in...in the Angaraes province, Department of Huanacavelica, ~250 km SE of Lima (Fig. 1). It is a major mining |  | | Journal (article/letter/editorial) | | Systemin Bismuthinite-Stibnite Compositions. Julcani,Peru VIRGIL W. LUETH, Departmentof PhysicalSciences...alongits path. Zoningpatternsestablished at Julcani,Huancavelica, Peru. Metal zoningis com- at Julcaniare presentedin... on metal ratios. 1462 ENCODINGORESYSTEM, JULCANI,PERU 1463 LOG (Pb/Cu) FIG. 2. Map projectionsummarizinglog...3. Metal ratio map of the 360 level of the Herminia mine showinglocationof major veins. Dotted linesrepresentlogPb/Cu...ORESYSTEM, JULCANI, PERU 330 0 1465 LEVEL lOOm FIG. 5. Vertical sectionof the Herminia mine with a map |  | Yang, H., Downs, R. T., Evans, S. H., Pinch, W. W. (2013) Terrywallaceite, AgPb(Sb,Bi)3S6, isotypic with gustavite, a new mineral from Mina Herminia, Julcani Mining District, Huancavelica, Peru. American Mineralogist, 98 (7) 1310-1314 doi:10.2138/am.2013.4423 | Journal (article/letter/editorial) | | a new mineral from Mina Herminia, Julcani Mining District, Huancavelica, Peru Hexiong Yang,1,* Robert...has been found in Mina Herminia, Julcani Mining District, Huancavelica, Peru. It is associated with tetrahedrite...tetrahedrite, gustavite, barite, and pyrite. Terrywallaceite crystals are lath-shaped, metallic-black...has been found in Mina Herminia, Julcani Mining District, Huancavelica, Peru. The mineral is named after...14, Mina Herminia, Julcani Mining District, Huancavelica, about 300 km southeast of Lima, Peru. Associated |  | | Journal (issue) | | TSKnerals of i'eru ! Indian miner, Cerro de Pasco, Peru, 1869 (Simonin, 1869). J3E(mes and J3E(merals...crystal group, 7 cm, from the Huanzala mine, Dos de Mayo Province, Peru. Marty Zinn collection; Jeff Scovil............................... History of Peru Mining in Peru The Mineral Specimen Business C o l l e c....................... Quiruvilca district, Santiago de Chuco province, department of La Libertad PASTO.......................... Pasto Bueno district, Pallasca province, department of Ancash R a u r a -H u |  | | Journal (article/letter/editorial) | | 1924-1938 The MagmaticHydrothermalSystemat Julcani,Peru' Evidencefrom Fluid InclusionsandHydrogenand...the emplacementof radiatingswarmsof tourmaline-pyrite brecciadikeletscementedby quartz-containing saline...stronglyzonedwith a generalsuccessionof quartz+ pyrite + wolfamite-,enargite-,tetrahedrite-,galena-,andbarite-dominant...died in an automobileaccidentnear Cerro de Pasco,Peru,onJuly13, 1994. JeffwasbornDecember3, 1957, in Oakland...-1554.00 1924 MAGMATICHYDROTHERMALSYSTEM,JULCANI,PERU 1925 hadreturnedto field-orientedstudies,in |  | | Report (issue) | | 880(2) α = 100.32(2)◦ X-ray Powder Pattern: Animas mine, Bolivia; similar to baumstarkite. 2.806 (100),...30.6 14.1 0.2 20.8 Total 99.84 100.0 (1) Animas mine, Bolivia; corresponding to (Ag2.97 Cu0.07 )Σ=3.04...Tetrahedrite, miargyrite, stannite, pyrite, quartz. Distribution: From the Animas mine, Chocaya, Potosı́, Bolivia...Bolivia [TL]. At Herminia, Julcani district, and in the San Genaro mine, Huancavelica, Peru. From the Armonia...Armonia mine, El Quevar, Salta Province, and in the Pirquitas deposit, Riconada Department, Jujuy Province |  | | Report (issue) | | characterized by the assemblage alunite+kaolinite+ quartz±pyrite, results from base-leaching by fluids concentrated...steam-heated environments, such as those at the Tolfa district, Italy and Marysvale, Utah, and numerous modern...epithermal deposits such as Summitville, Colorado; Julcani, Peru and Red Mountain, Lake City, Colorado are characterized...of coeval pyrite and possibly PO4 analogs of alunite, and zunyite, and later gold, pyrite and enargite...are 16 to 28 %c larger than those for associated pyrite, reflecting equilibrium between aqueous H2S and |  | | Journal (article/letter/editorial) | | POTASSIUMAND RUBIDIUM METASOMATISM AT THE ]ULCANI DISTRICT, PERU DARYL A. SCHERKENBACH NorandaExploration...determined and rubidium metasomatism on both a district-wide scaleandat closeproximityto veinsandveinsystems...hydrothermalalterationand mineralization(Scherkenbach,1978). The Julcani Mineralogy and Chemical Changes districtis well...fine-grainedor glassy Most of the altered rocksin the district thedetermination of accurate background values...majormineralizationnormal cludingepidote, chlorite, calcite, pyrite, smectite, quartz, sericite,albite, and/or K-feldspar |  | | 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...Huarochir•,Colquijirca,Cerro de Pasco,Morococha,Huancavelica,Julcani,Castrovirreyna,SanJuande Lucanas,Cochasayhuas...gypsum(pachas),and sulfur(sillina).They alsoknew of pyrite (quillo,carhua),realgar(huambi),magnetiteandhematite(both...wasmostlyusedfor the treatment of silver and gold ores in Peru, Bolivia, and Mexico (RodriguezHoyle, 1974). In |  | | Journal (article/letter/editorial) | | associated minerals include, to name but a few, pyrite, chalcopyrite, galena, acanthite, sternbergite...tennantite crystals with quartz from the El Cobre mine, Concepción del Oro, Zacatecas, Mexico. Cal and...exceptional 9-cm tennantite specimen from the Longfellow mine, Red Mountain Pass, Ouray County, Colorado. Dave...chalcopyrite and are associated with siderite, pyrite, and quartz. Some of these specimens have a sooty...fingers black if handled carelessly. The Georgetown district, also in Clear Creek County, has produced some |  | | Journal (article/letter/editorial) | | Tourmalinized Fluidization Breccia, JulcaniDistrict, Peru JOHNP. SHELNUTT* Departmentof Geologyand GeologicalEngineering...plutoncrystallizing beneaththe centralpart of the district. Areallyrestrictedelongatezonesof shattereddacitepostdatethe...describesfiuidizationbrecciasat the Julcanidistrict,Peru. A majorpurposeof the study wasto provideevidencefor...to underlie the district. The Julcanidistrictis locatedin the centralAndes of Peru approximately250...Geologicsetting The geologyand mineral depositsof the Julcani districthavebeendescribedby Petersenet al. (1977) |  | | Journal (issue) | | Sulfosalt Environment: The Mineralogy of the Julcani District, P e r u ............................................ 247 WULFENITE—from level 4 of the 79 mine, Gila County, Arizona. The specimen was collected...their help, and their country, where a change in mine ownership has also response has been wonderful....Individuals who have con sometimes meant a change in mine name. How many sented to serve as members of this...It is the fourth oc a metamorphosed sedimentary pyrite-rhodochrosite de currence of this rare and little |  | | Journal (article/letter/editorial) | | 35Sb1.35)Σ2.70S6, has been found at Kutná Hora ore district, Czech Republic. The mineral occurs in the late-stage...Staročeské pásmo Lode of the Kutná Hora base-metal ore district, Czech Republic, during an extensive search for...for bismuth sulfosalts in the ore district. It is named after the type locality. The history of the mineral...of bismuth mineralization from Kutná Hora ore district were measured using an electron probe microanalyser...description of the new mineral terrywallaceite from Huancavelica, Peru (Yang et al., 2013), which is also a Bi–Sb |  | | Report (issue) | | Ag0.18 Cu0.06 )Σ=8.79 Sb7.62 S21.00 . (2) Chichibu mine, Japan; by electron microprobe, average of 23 analyses;...guettardite, jordanite, diaphorite, sphalerite, galena, pyrite, chalcopyrite, tetrahedrite, bournonite, arsenopyrite...(Nagybánya) district, and from Rodna. In Germany, at Wolfsberg, Harz Mountains, and from the Caspari mine, Arnsberg...Arnsberg, North Rhine-Westphalia. From the Les Anglais mine, Massaic, Cantal; Montlucan and Bournac, Montagne...Louisa mine, Glendinning, Eskdale, Dumfries. In Bolivia, at the San José mine, Oruro. From Herminia, in |  | | Journal (article/letter/editorial) | | volcanicdomefield. Many peoplehave vidual deposits:Julcani, Peru; Summitville,Colo- contributedto our knowledgeof... in the systemmustlie betweenthe 834Svaluesfor pyrite and have equilibriumsulfur and oxygenisoare constant...follow a reducingpath becomemuch do not coexistwith pyrite andare characterized by 5180valuesbut by disequilibrium...detailsof calculations. tion of innumerable tourmaline-pyrite-quartz-altered brecciadikeletsthat extendradially...200øto minutesat dikelets is in the center of the district. Six centers of 400øC(Table1). Theseratesof equilibration |  | | Journal (article/letter/editorial) | | Massachusetts 02138 Abstract The centralAndeanCordilleraof Peru,Bolivia,northwestern Argentina,andnorthernChile...northernandcentralChile; subprovince Ib, in central Peru north of 13ø S; and subprovinceIc, in southernPeru...that dominates the geologyof the high Andesof Peru. Province III: The Eastern Cordillera of southeasternPeru...northernArgentina,and subprovince IIIb in southeastern Peru. Theseprovincesare borderedby noncordilleranunitsof...stronglyperaluminous characterof muchof the magmatism in province III. Detailed comparisons of lead isotopedata |  | | Report (issue) | | above types of geochemical information: Colqui, Peru; Comstock, Nevada; Creede, Colorado; Goldfield,...Nevada; Guanajuato, Mexico; Lake City, Colorado; Julcani, Peru; Oatman, Nevada; Pachuca-Real Del Monte, Mexico;...Colorado; Round Mountain, Nevada; Sunnyside mine, Eureka district, Colorado; Summitvilie, Colorado; and Tonopah...were found for the Silver City - De Lamar, Idaho district. The purpose of this report is to make this compilation...Only a few data are reported for Lake City and Julcani, while at Creede approximately 200 analyses have |  | | Journal (article/letter/editorial) | | sulphosalts from Kutná Hora vein Ag–Pb–Zn ore district, Czech Republic Richard PAŽOUT 1*, Jiří Sejkora2...samples from mine dumps of the Staročeské pásmo Lode of the Kutná Hora Ag–Pb–Zn ore district, central Bohemia...been previously known from the Kutná Hora ore district. The origin of this sulphosalt mineralization...Bi-mineralization was discovered in the Kutná Hora ore district (60 km east of Prague, Czech Republic), which...unlike other Ag mineralizations found in this district that were associated with antimony – was characterized |  | | Book | | On a spectacular find of crocoite in the Adelaide mine, Dundas, Tasmania (by A. H. Chapman) 3:111-113 ADOLFSSON...AJO Famous mineral localities: the New Cornelia mine, Ajo, Arizona (by W. J. Thomas & R. B. Gibbs) 14:283-298...ALLEN, GEORGE B. --and W. Hunt: The Tonopah-Belmont mine, Maricopa County, Arizona 19:139-144 ALLGOOD, GENNE...Allgood, C. Williams: Ramsdellite from the Mistake mine [Arizona] 14:333-335 ALLGOOD, ROBERT W. -with G...the Mistake mine [Arizona] 14:333-335 ALMA Famous mineral localities: the Home Sweet Home mine, [near Alma |  | | Journal (article/letter/editorial) | | the south part of the Koashva open pit (Vostochnyi mine), Mt. Koashva, Khibiny alkaline complex in Kola...andorite homeotypic series from the Monte Arsiccio mine, Apuan Alps. European Journal of Mineralogy, 30...enriched with microcrystalline pyrite from the Sant’Olga tunnel, Monte Arsiccio mine, Stazzema, Apuan Alps, Tuscany...(43°58′16″N, 10°17′05″E). The Monte Arsiccio mine exploited a pyrite ± baryte ± iron oxide ore deposit located...knowledge of magmatic activity in the Tuscan Magmatic Province and the related ore deposits, in particular, the |  | | Journal (issue) | | Teil IV• Rother Kopf/Vulkaneifel • Neue Funde in Peru 2010-2014 • Lava CapThundereggs von Deming, New...Showreport 12 Über die neuen Mineralienfunde in Peru 26 Einschlüsse in Quarz (4) 54 Die „vergessenen...Titelbi ld zeigt Pyrit-Kristalle van der Pucarrajo Mine in Peru . Höhe der Stufe 4 cm . Sammlung K. & M. Proctor...2014 von der Chino Mine in New Mexiko (5150 Bench, East Pit, Townsite Island, Chino Mine bei Bayard, Grant...der bekannten Pyromorphit-Fundstelle der Yangshuo Mine im Kreis Yangshuo der Provinz Guangxi Zhuang A.R |
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