 | | 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) | | the patternand relativeagesof ore in a single district. The evidencein SoutheastMissourisuggestsinhomogeneous...834 AM- I I 852 18 92 837 18 86 834 Av CASAPALCA. * •'• SANCRISTOBAL • AM- C'"SAPALC'" AM-...betweenthe differentlead-zincdepositsin the Cerro mine havenot beenestablished.The sevengalenasamplesfrom...be classifiedonly in regard to their depthin the mine and occurrence in irregular shapedbodies. The Casapalcadepositis... 52.36 Casapalca Proper 1.000 18.81 15.64 39.16 1.340 25.21 20.96 52.47 Casapalca Proper Am-19 |  | | Journal (article/letter/editorial) | | GEOLOGY AND MAJOR ORE DEPOSITS OF CENTRAL ULRICH PERU PETERSEN CONTENTS PAGE Abstract ................................ 427 430 434 448 454 462 Casapalca ................................................the center of the districts to the margins. This district zoning is modifiedby local or orebodyzoning and...Cerro de Pascoand later expanded' to Morococha, Casapalca,San Cristobal and Yauricocha. Exploitation of...complexenterprise,includingthe Goyllarisquizga coal mine, concentrating, smelting,and refiningfacilitiesand |  | | Journal (article/letter/editorial) | | Geochemistry of TetrahedriteandMineralZoning at Casapalca, Peru ISHIUNG WU AND ULRICH PETERSEN Abstract The...characterizedby (1) sphalerite-galenapyrite, (2) chalcopyrite-pyrite-sphalerite, (3) tetrahedrite,and (4) quartz-carbonates...parageneticposition can be correlatedfrom one part of the mine to anotherover great distances. Quantitativeele...probablycloseto the center of the hydrothermal systemat Casapalca. The outer SO-rich Ag-rich tetrahedrite zone envelopsthe...This zoning pattern differs from the one used at Casapalca for severaldecades.The newly proposedzoningof |  | | Journal (article/letter/editorial) | | tetrahedritesfrom Coeur d'Alene,Idaho, and Orcopampa andJulcani,Peru,to documenttheseobservations. Similarheterogeneity...Althoughgenerallyclassedasa copper samplesfrom Casapalca,Peru (Wu and Petersen, sulfosalt,its crystalstr...tetrahedritesare commonlyhet- Idaho; Orcopampaand Julcani,Peru; and Creede, erogenousin composition(Yui, 1971;...the brecciapipe at Cananea,Mexico. electrons,Casapalca sample5270, showingcompositional growth Ag co...proximalto the presumedsourceof the solutions Casapalca,Peru (determinedby the zonationof wall-rockalteration |  | | Journal (article/letter/editorial) | | pohwatp@si.edu ENARGITE Longfellow Mine, Red Mountain District, San Juan County, Colorado Are all things...the north orebody of the Longfellow mine, Red Mountain district, San Juan County, Colorado. Specimen...familiar example is pyrite and marcasite. Both are iron sulfide in composition, but pyrite crystals are isometric...chalcopyrite, tetrahedrite, sphalerite, galena, pyrite, calcite, and quartz, to name but a few. It is...deposits of the Tri-State district in the United States. It is known to replace pyrite, chalcopyrite, tennantite |  | | Journal (article/letter/editorial) | | SEPTEMBER, THE VEINS OF CASAPALCA, H. E. McKINSTRY No. x932 6 PERU. AND J. A. NOBLE. INTRODUCTION...Superintendentand Assistant Superintendentat Casapalca,for facilities during the course of the .work;... permissionto publishthis paper. Location.---Casapalca is situatedhigh in the central Peruvian Andes...Pacificat the port of Callao. East of the to,wn of Casapalca,Carlos Francisco,one of the peaks of the Western...that the Carlos Francisco Mine has beenopened. The name of one other mine needsto be borne in mind--the |  | | Report (volume) | | (A) Geology of the Huancavelica quicksilver district, Peru, by Robert G. Yates, Dean F. Kent, and James...and ore deposits of the Atacocha district, Departamento de Pasco, Peru, by Robert F. Johnson, Richard ...quicksilver district, Peru. 2. Geologic section of the Belen tunnel, Santa Barbara mine, Huancavelica...Huancavelica quicksilver district. 3. Geologic map and section of the Botija Punco mine, Huancavelica quicksilver...quicksilver district. 4. Geologic map and sections of the San Roque mine, Huancavelica quicksilver district. 5 |  | | Journal (article/letter/editorial) | | 12 FEBRUARY, 1927 THE MINERALS No.2 OF CASAPALCA, PERU' H. E. McKtNsrRy. Ea.rvard,Uniaersitt. INrnopucrrox...more fabulous reports of it, have made the name of Peru synonymous with untold riches and have attracted...scientific nature to claim his interest. Viewing Central Peru as a whole, one is impressedby the manner in which...which the mineralogy of each particular district, while having its individual peculiarities, accords with...particularly the rare variety luzonite. ' At Casapalca, enargite is unknown, and while tetrahedrite of |  | | Journal (article/letter/editorial) | | IN A ZONED CORDILLERAN BASE METAL DISTRICT, MOROCOCHA, CENTRAL PERU Honza CATCHPOLE§ Earth and Environmental...polymetallic mineralization in the Morococha district, central Peru, displays a deposit-scale base metal zonation...evolving hydrothermal fluid by the host rock on a district-scale. Keywords: base metal zonation, Morococha...Bendezú et al. 2008a). In the Morococha district, central Peru, Cordilleran polymetallic mineralization...al. 2008), Casapalca, Peru (McKinstry & Noble 1932, Rye & Sawkins 1974), and Colqui, Peru (Kamilli & |  | | Journal (article/letter/editorial) | | National University] at 06:43 31 December 2014 mine in Colorado, and they found virtually the entire...among others, chalcopyrite, galena, sphalerite, pyrite, acanthite, bornite, calcite, dolomite, siderite...are examples of chalcopyrite, cuprite, covellite, pyrite, bournonite, and sphalerite after tetrahedrite...lustrous group of tetrahedrite crystals from Casapalca, Peru. Jewel Tunnel Imports specimen when photographed...though small 2.4-cm tetrahedrite and pyrite specimen from the Anchor mine, Park City, Utah. The specimen was |  | | Journal (issue) | | except the Dale Beck Valley, Dry Gill and Carrock End Mine. Grahamis hoping to get the permit system properly...still very much a 'frontier place'. One supposed mine was started by a character called Otto van Stryk...Stryk who thought he had found a huge iron mine. Alas, he never got any useable ore out of it. Rick went... So now it is recognised as a potential uranium mine! Another anecdote involved a light plane brought...amethyst, fluorapatite and tourmalines. Rossinguranium mine, a uraniferous granite, was also mentioned. Rick |  | | Journal (article/letter/editorial) | | IsotopicVariationsin the Lower ChesterVein, Sunshine Mine, Idaho RICHARD H. HARRIS, Newmont Exploration,327...Fe, Zn, andAg in tetrahedrite and•ia4S valuesin pyrite and tetrahedritewere determinedfor the carbonate-bearing...tetrahedriteand 13 pyrite separateswere determined (tetrahedrite •$4Smean= 4.4, range-- 2.9 to 5.9; pyrite•ia4S mean=...sulfur.The enrichmentof 34Sin tetrahedriterelativeto pyrite suggests that an Fe-rich solutionchangedwith time...vertical and lateral extent. THE Coeur d'Alene district of northern Idaho has rich Previouslyknownsulfurisotopicdata |  | | Journal (article/letter/editorial) | | quartz from the Finlandia vein, Colqui, Peru, from Casapalca,Peru, and from the OH vein, Creede,Colorado...range of 1 to 40 ppm at Colqui, 1 to 50 ppm at Casapalca,and 1 to 25 ppm at Creede. These resultsare consistentwith...solubilitymeasurements of chalcopyritein the presenceof pyrite, which indicate that in the hydrothermal solutions...vein in the Colqui District, Peru, from the Ag-Pb-Zn-Cu deposit at Casapalca,Peru, and from the OH vein...combiningthe 1647 1648 T. TSUI AND TAB•.E 1. District Colqui Sample• H. D. HOLLAND Location of Samples |  | | Journal (article/letter/editorial) | | Deposit,CentralAndes,Peru* Ro•.•r O. RYe-and F. J. SAWKINS Abstract The extensive Casapalca vein systemoccursin...emplacementof an underlyingintrusive. the CentralAndesof Peru (McKinstry and Noble, This conclusion is supportedby...meaningfull fluid inclusionand stable isotopic data Casapalca vein system(Fig. 2). Thin and polished for the...Cretaceouslimestoneswhich underlie the Casapalcafor- The Casapalca vein systemis locatedon the west mation. They...typical of the tactite flank of the Central Andes of Peru at an altitude of zonesthat are commonly encountered |  | | 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...detailedmetal ratio contouring.The central part of the district, characterized by the pyritic gold-tungstenmineralization...Along these paths they depositedfirst enargite-pyrite-tennantite/tetrahedrite, then a zone of complex...ard along the solution paths. In Estela, early pyrite-wolframite mineralization is followed first by |  | Catchpole, Honza, Kouzmanov, Kalin, Fontboté, Lluís, Guillong, Marcel, Heinrich, Christoph A. (2011) Fluid evolution in zoned Cordilleran polymetallic veins — Insights from microthermometry and LA-ICP-MS of fluid inclusions. Chemical Geology, 281 (3) 293-304 doi:10.1016/j.chemgeo.2010.12.016 | Journal (article/letter/editorial) | | central Peru. Results record an evolution from initial deep-seated precipitation of quartz–pyrite and base...common feature observed during field mapping and mine exploration essaying, and occurs from the small...to entire ore deposits or mine districts. Classic examples include Casapalca (Rye and Sawkins, 1974),...central part of the polymetallic Morococha district, central Peru, and performed detailed microthermometry...2. Geology and vein paragenesis The Morococha district (Fig. 1) is located in the Western Cordillera |  | | Journal (article/letter/editorial) | | sulfosalts d- electrum d- sphalerite d- galena d- pyrite d- siderite; (III) quartz; (IV) sphalerite d- galena;...being STUDIES OF THE FINLahVDIat VEIY, CENTRaIL PERU 951 worked. It presenteda unique opportunity for...about 30,000 metric tons of trict, Department of Lima, Peru (Fig. 1), at the silver ore. In 1958, Compafiia...formed and major operationsswitched ters northeast of Lima and 27 kilometers northwest to the Finlandia vein...vein, supplying200 metric tons of of Casapalca. Elevations vary between4,200 and ore per day to the mill |  | | Journal (article/letter/editorial) | | aboutthirty mineraldistrictsin the Andesof Central Peru. The resultsof that investigation, describingeight...opportunityto study during my residencein Central Peru for over a decade. I wish to expressmy appreciationto...vent, phyllitesectionin San Crist6bal,Cambalache mine southof Julcani). Conversely,veinsare well developedin...sequences withinthe Excelsiorseriesand the Mitu and Casapalca red-beds. Severaloredeposits occurwithintheserocks...exhibitingwell definedwall-rock alteration(i.e., at Casapalca). As pointedout above,the incompetent nature of |  | | Journal (article/letter/editorial) | | Some of these deposits,'such as Providencia, Casapalca,and Pasto Bueno, are vein types; others, suchas...(sensulato). Certain deposits,such as Providencia, Casapalca, and Creede, exhibit a narrow range of •84S values...similar sulfidesulfur isotope 827 PROVIDENCIA CASAPALCA I,,-• SULFATES - -- [--- LATESTAOE.. PAS•'OBUENO...1974,and unpub.data); Casapalca, Peru (Rye and Sawkins,1974); Pasto Bueno,Peru (Landis and Rye, 1974);...coexistingminerals The range of sulfur isotopevalues for pyrite, or sphalerite,and galenafor varioushydrotherm |  | | Journal (issue) | | Cd-bearing phosphate mineral from the Gold Quarry mine, Eureka County, Nevada . . . . . . . . . . . . ...crystal cluster, 7.3 cm, from near Bapu, Guangdong Province, China. Rob Lavinsky specimen, now in the Tom...recovered from the dumps of this small mine. Local collectors reworked the mine dumps many times in search of...about 325 meters southwest of the Bishop manganese mine. The locality was early on referred to as a “copper...spatially distinct from the nearby Bishop manganese mine. The dumps do not contain significant manganese |  | | Journal (issue) | | .89 by W. E. Wilson The Palomo mine, Huancavelica Department, Peru . . . . . . . . . . . . . . . . .... . .95 by J. Hyršl Pseudomorphs from Peru . . . . . . . . . . . . . . . . . . . . . . . . . . . . ....White Ca-Mg-Fe-rich rhodonite from the Morro da Mina mine, Conselheiro Lafaiete, Minas Gerais, Brazil . ....BaCa2(CO3)2F2, a new mineral species from the Kirovskii mine, Khibiny, Kola Peninsula, Russia . . . . . . . ...crystal cluster, 3.5 cm, from the Mashamba West mine, atanga, Republic of the Congo. Rob Lavinsky (The |  | | Journal (article/letter/editorial) | | HYDROTHERMAL W. LEACHING C. LACY AND IN CENTRAL PERU H. L. HOSMER ABSTRACT Hydrothermalleachingof...describedfrom severalmining districtsin Central Peru. Leaching is normally associatedwith lead-zinc ores...approximateorder, tetrahedrite,galenasphalerite,pyrite, chalcopyrite;(3) leachingof carbonates;(4) deposition...attentionswere drawn to a puzzlingphenomenon in Central Peru where the down-dip extensionof a well-mineralizedleadzinc...GEOLOGICAL SETTING The geologyof the mines of Central Peru has most recently been summarizedin the Lead-Zinc |  | | Journal (article/letter/editorial) | | January 2015 Bournonite Yaogangxian Mine, Chenzhou, Hunan Province, China T here are certain mineral...the most prolific being the Yaogangxian mine, Hunan Province. (Additional locality information and photographs...intermediate temperatures and is often associated with pyrite, galena, sphalerite, chalcopyrite, stibnite, boulangerite...from such disparate localities as the Black Hawk mine, Blue Hill, Maine; New York City, New York; an unspecified...Pennsylvania; the Cofer deposit in the Mineral district of Louisa County, Virginia, where it occurs with |  | | Journal (article/letter/editorial) | | 1878 (75) in his reportson the Michigancopper district. This alterationwas regardedby Pumpellyas a resultof...mayemphasize thealteredzones, for example, by oxidation of pyrite to limohireand hematite. Limestone in the walls...walls of some of the ore bodies in the Bisbee district werebleached as a resultof variablechangesin composition...sericitizedgraniteat Rimini, Montana. In the Metaline district of Washington(70) zinc occursmost abundantly neargray...replacement of limestone.In the Northern Empire Mine of Canada(11) the rocksnear the veinsare brown due |
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Casapalca Mine, Casapalca, Chicla District, Huarochirí Province, Lima, Peru