 | | Book | | P')76m Purser, W I' C 198T- , • Metal-mining in Peru, put and present 1by1 W. F . C. Purser. New York...NIOUro.. Peru. . l. Tltle- TN~9.P8T. . -· ' • 18,50 '18-182'81 Metal-Mining in Peru, Past and...social, and political development. Metal-Mining in Peru, Past and Present -a :'O > m C) m ::D ,, Ch...importance of the mines of Peru. Part~ of the book sketches the background of Peru and its mining history...into five chapters for the five mining areas of Peru. Part III is concerned with the economic significance |  | | Journal (article/letter/editorial) | | (quartz-kaolin-montmorillonite),and propylitic (epidote--calcite-chlorite), the propylitic zone extending2,500 feet...Conglomerate. An chlorite-biotiteand chlorite-calcite-epidote-adulariaassemblages, respectively."Phyllic"...Crossed nicols, 15 x. Fro. 9. A veinlet of dominant calcite, anhydrite, K-feldspar, and opaque minerals (pyrite-chalcopyrite)...shredsand scrapsof K-feldspar wardly. Epidote and calcite are commonas fine and as coarseraggregates persistin...Permian bar barite bi bioti•te bn bornite cal calcite car carbonate cc chalcocite cp chalcopyrite |  | | Journal (article/letter/editorial) | | dSOM.dTIC COPPER THE C.dLZ.dD.d MINE, W. MINER.dLIZ.dTION PERU C. STOLL The Calzadacoppermineis...from a conglomeratebed at least 6 m thick. At the mine,a maximumstratigraphic thickness of 70 m of light...near Casapalca.No intrusiverocksare exposed at the mine. The conglomerates and interbedded quartzitesare...composedof idiomorphicquartz and coarse white calcite, with smaller quantitiesof garnet,epidote,biotite...lesserquantitiesof biotite, epidote,sericiteand calcite. One suchbed has.beenconvertedalmosttotally to |  | | Journal (article/letter/editorial) | | Superieure de Geologie, Nancy, France puis Minero Peru, Casilla 4332, Lima, P6rou Les ~ges K-Ar des roches...d'~ges pal~oc~nes ~oc~nes dans les districts de Toquepala (Laughlin et al., 1968), de Cerro Verde (Stewart...en discordance par les formations du groupe de Toquepala: 300 m de du porphyre cuprif~re de Quellaveco...parfois zon6, toujours un peu alt~r6 (s@ricite, calcite) et de la biotite, ciment6es par une matrice plus...transform6es en agr~gats ~ chlorite, ~pidote, calcite, pyrite, oxydes de titane et dans une moindre mesure |  | | Book | | Potteriics, Chile . 4 ¢ Section Through Arequipa, Peru 5 ¢ Section Through Potrerillos, Chile . ; 6...Rego Chile : 7 ¢ Michiquillay Regional Geology (Peru) . 8 © Structure at Chuquicamata, Chile . 9 ¢ Surface...Morococha, Peru, including Toro Mocho Area . 13 © Structural Outline of Toquepala, Peru . ‘ 14 ¢...¢ Detailed Surface Geologic Map of Toquepala . 15 16 17 18 19 ¢ © ¢ ¢ ¢ Index Map (Appalachian Orogen)...Plutonic Belt, ies 27 @ Geology of the Kobuk-Koyukuk Province (Alaska). 28 © Interior Belt (Alaska). 3 ; , |  | | Report (issue) | | altered rocks contain varying amounts of chlorite, calcite, and epidote, which have 2.32–2.35-μm absorption...muscovite (sericite), albite, anhydrite, chlorite, calcite, epidote, and kaolinite. In silicate-rich rocks...epidote, quartz, actinolite, chlorite, biotite, calcite, dolomite, K-feldspar, and wollastonite. Other...one or more minerals of the assemblage chlorite-calcite-epidote-pyrite-albite. Hydrothermal alteration...example, rutile, ilmenite, sphene), epidote, and(or) calcite. Primary plagioclase is generally altered, particularly |  | | Journal (article/letter/editorial) | | have been depletedno more than 50 percentin the Peru to delineateindividual mineral deposits:Inst. Mining..., 1968, Potassium-Argondates from Toquepala and Michiquillay, Peru: Summary and Conclusions ECON. GEO•...rleaching of the La Granjaporphyrycopperdeposit,Peru,in Rose,A. W., and Gundlach, H., ed., GeochemicalExploration...age, is locatedwithin the Grenville structural province of the Precambrian CanadianShield.Specificallythe...sporadicallysince carbonate metasediments are calcite rich in nature 1900 (Uglow,1910;Harding, 1947) |  | | Journal (article/letter/editorial) | | of the orebody and its environs. Bedrocknear the mine consistsmostly of extensivevolcanic flows and i...e. The most prominent structural feature in the mine area is the Braden Pipe•a circular, downward-tapering...porphyry-type deposits. INTRODUCTION THE E1 Teniente Mine of the Braden Copper Company is on the western flank...three-yearperiod, surface geologyin the vicinity of the mine was mappedon a scaleof 1:2,500, accessibleundergroundworkingswere...Reconnaissance traversesand aerial flights over the mine area helped to establishthe regionalsetting. Topographic |  | | Journal (article/letter/editorial) | | 150 X 150 >600 Angularto sub- Absent rounded Peru San Pedro de 10 to >50% rounded Granodiorite...chalcopyrite, pyrrhotite,magnetite, molybdenite Quartz,calcite, ankerite,laumontite Faults,joints, Quartz, albite... sericite, fiuorapatire Calcite, diopside, 40 Mt, 0.2% contacts calcite, ankeritc, dolomite cite...Probablyabsent ppm Au Au Pyrite, magnetite,hema- Calcite Not recognized tite, scheelite Sericitic, chloritic...Specularitc,pyrite, chalo copyrite,scheelite Quartz, calcite, Not recognized silicate, chloritic Pyrite, |  | | Journal (article/letter/editorial) | | Iron Oxide-Copper-Gold Deposit, Central Coast of Peru ANTOINE DE HALLER,†,* University of Geneva, Mineralogy...Manuel Roaud y Paz Soldán 364, San Isidro, Lima 27, Peru Abstract Raúl-Condestable is a >32 million metric...oxide-copper-gold deposit in the central coast of Peru. The location of the studied area (Fig. 2) is shown...understanding of the geology of the central coast of Peru. A detailed study of the alteration, geochemistry...volcano-sedimentary belt that crops out along the central coast of Peru (Fig. 1). Cobbing (1978) divided the western Peruvian |  | | Journal (article/letter/editorial) | | separatesthe Colorado Plateau from the Basin and Range Province. The terrane is essentiallya complexof igneousand...to the northeastand the currentlyactive Iron King mine near Humboldt, about 15 miles to the east (Fig....GeologicalSurvey open file report on the Loma Prieta mine. ,4cknowled#ments.--Partof this paper is taken from...present as one large unit near the Boston-Arizona mine and as small xenolithsand roof pendantsthroughoutthe...St•l•e and Dip of • Strike •d FollatJon • • • Mine Graded •i(l• SCALE i• T • / t t ?/ /' /' |  | | Journal (article/letter/editorial) | | Geological and Hydrothermal Processes, Northern Peru a b Andrew W. Macfarlane , Rosa-Maria Prol-Ledesma...Geological and Hydrothermal Processes, Northern Peru, International Geology Review, 36:7, 645-677, DOI:...Geological and Hydrothermal Processes, Northern Peru A N D R E W W. MACFARLANE, Department of Geology...Mineralization in the Hualgayoc district of northern Peru occurs in altered Miocene felsic intrusions and...BRAZIL "* \Trujillo J V I \ " v // \ SLima PERU > PACIFIC OCEANV Scale (kms) 0 200 400 ; ^-^-s |  | | Journal (article/letter/editorial) | | 267-272. THE PORPHYRY COPPER DEPOSIT AT LA GRANJA, PERU MICHAEL O. SCHWARTZ Bundesanstalt fiir Geowissenschaften...of a hill of the Serviciode Geologiay Minerla of Peru in coop- quartz-richrocks,which reachesa heightof...percentin the sericite-clayzone. clinozoisite,calcite, anhydrite, clay minerals,and Advancedargillicalteration...SelectedMinor Elementsin AlteredIgneousRocks,La Granja,Peru Surfaceexposures Propyliticalteration Biotite...have been depletedno more than 50 percentin the Peru to delineateindividual mineral deposits:Inst. Mining |  | | Book | | colleague, and friend for three decades, who knows Peru and Bolivia, was familiar with the mining industries...Cologne, Germany, who lived many years in Bolivia and Peru and whose recollections of events during and shortly...Vollmers and Vilma Salazar of Lima, Peru, Hans Tordoir of La Paz, Bolivia, Jorge Lazo of Santiago de Chile, and...the tin of Bolivia, the lead, zinc and copper of Peru, and the copper of Chile - to mention only very...Central America, Colombia and Venezuela, and then in Peru, Bolivia and Chile as well. The museums of these |  | | Journal (article/letter/editorial) | | BRECCIA PIPE I Diamond drill hole. DACITEPORPHYRY Mine workings. QUARTZDIORITE Location of sections ...collected on a 40meter interval along all of the mine workings and diamond drill holes shown in this figure...volcanicsequence(Table 2), the intrusive rocks anddioritesat Toquepala,Peru (Richardand Court- showonly a slightdecrease...245 261 267 258 174: Sr ppm 475 445 475 This mine is locatedon a steep northwest-facing slopeat an...outward into a zone of chalcopyrite-pyrite, epidote,calcite,quartz,pyrite, and minor sericite. Dacite porp |  | | Report (issue) | | ........................................... P20 Mine Waste Characteristics........................................................................ P25 Mine Closure...................................................... P11 Pie chart showing world rhenium mine production in 2012, by country and percent of world...substitute for molybdenum in molybdenite. Annual world mine production of rhenium is about 50 metric tons. Nearly...Chile account for about 55 percent of the world’s mine production of rhenium; rhenium is also recovered |  | | Journal (article/letter/editorial) | | to increases in the waste/metal production ratio. Mine wastes deposited on-land in so-called tailings dams...environmental issues that need to be addressed (e.g., acid mine drainage formation due to sulphide oxidation, geotechnical...is a suitable alternative for mine waste. Keywords: tailings; acid mine drainage; waste management; marine...mining, the formation of acid mine drainage (AMD). AMD occurs, when sulphidic mine waste is exposed to atmospheric...and mine tailings storage areas and in underground workings or on the walls of an open pit mine. Due |  | | Journal (issue) | | Thermal H. A. Shrecengost Preventive Maintenance At Toquepala PRODUCTION 7 d by the authors within these...and Costs of Rock Drilling at the Silver Summit Mine, Hecla Mining Co., Shoshone County, Idaho,” by D‘Arcy...useful PREVENTIVE MAINTENANCE AT TOQUEPALA The Toquepala pit of Southern Peru Copper Corp. is the largest... FLEET AT GETCHELL Getchell gold mine scrapers, million Mine, in C-6 yards Inc., near America...America. and Golconda, An TC-12 MINE all-Euclid crawlers of overburden and Nevada fleet was ore |  | | Journal (article/letter/editorial) | | Regional geology and mayor ore deposits of Central Peru. Econ. Geol., 60, 8, 407~476, Lancaster 1965. RADELLI...broad sense that the expression "metallogenic province" is used in this paper. When all deposits of various... In this regard, the expression "metallogenie province" is used in a rather restricted sense. Even so...influence of political and geographic factors. Thus, Peru, Bolivia and Chile enjoy a long established mining...M~3LLER-KAHLE for Ecuador, and C. B. PETEltSEN for Peru. While acknowledging their cooperation I would also |  | | Journal (article/letter/editorial) | | hydromica,kaolinite, and other clay minerals, calcite, epidote-zoisite,leucoxene,rutile, pyrite and other...(Mexico), Leadville, Miami, Quellaveco and Toquepala,(Peru), Ray, San Manuel, and Santa Rita. A few sections...rutile. Less commonlyother mineralssuchas pyrite, calcite,and epidote,occur within the pseudomorphs.The ...(dark stippled) with lensesof chlorite (black) and calcite (light). San Manuel, Ariz. Crossednicols. X 35...observedlensesof chloritewith interlamellargrains or platesof calcite and epidote in monzoniteporphyry from Breckenridge |  | | Journal (article/letter/editorial) | | pit; 200 Kt Mo @ 0.012%; 10 Mt Cu @ (0.3–0.6%) Mine on standby; 52 Kt Mo @ 0.015%; 2.3 Mt Cu @ 0.67%...@ 0.04–0.20%, (average 0.1%) Active underground mine; ~50–60 Kt Mo @ 0.1–0.5%; 50 Kt Cu @ 0.1–0.2% Lebedev...fahlore, enargite, galena and sphalerite, (5) quartz–calcite. At lower levels, the rocks are rich in anhydrite...open pits (Zhireken, Sora and Erdenetuin-Obo) and mine benches (Shakhtama). These 22 samples are monomineralic...highest Re content among the deposits of this province is the molybdenite from the Kounrad deposit in |  | Perello, J., Carlotto, V., Zarate, A., Ramos, P., Posso, H., Neyra, C., Caballero, A., Fuster, N., Muhr, R. (2003) Porphyry-Style Alteration and Mineralization of the Middle Eocene to Early Oligocene Andahuaylas-Yauri Belt, Cuzco Region, Peru. Economic Geology, 98 (8) 1575-1605 doi:10.2113/gsecongeo.98.8.1575 | Journal (article/letter/editorial) | | Oligocene Andahuaylas-Yauri Belt, Cuzco Region, Peru JOSÉ PERELLÓ,† Antofagasta Minerals S.A. Ahumada...belt of southeastern Peru is rapidly emerging as an important porphyry copper province. Field work by the...deflection. Similarly, evidence from southeastern Peru suggests that the Andahuaylas-Yauri belt may be...the process of subduction flattening in southern Peru also may have taken place in northern Chile between...an area of approximately 25,000 km2 in southern Peru and extends for about 300 km between the localities |  | | Journal (article/letter/editorial) | | deposits and prospects in northern Chile and southern Peru cited in the text. The easterly upper Eocene to...and contiguous northwest Argentina and southern Peru (Fig. 1), exhibit hypogene Cu grades of at least...which dominate the Pacific piedmont in southern Peru and northern Chile, were generated rapidly under...multistage enrichment profile of the Toquepala porphyry deposit, southern Peru (Anderson, 1982; Clark et al....with the erosion surfaces in the wider Atacama province (e.g., Clark et al., 1990a). Subsequently, in |  | | Report (issue) | | Mines and mineral resources—Peru—History. 2. Metallurgy—Peru—History. 3. Peru— Antiquities. I. Title. TN52...use today. Native copper from the Cerro de Pasco Mine, a shell used as a palette for mixing cinnabar-based...in Latin America. The pleasure has certainly been mine. I would like to express my sincere thanks and appreciation...world. And, if I remember correctly, it was Prof. Jorge Muelle who first told me about Petersen’s geological...Minería y Metalurgia en el Antiguo Perú. When Dr. Jorge Muelle became director of the Museo Nacional de |  | Nelson, M., Kyser, K., Clark, A., Oates, C. (2007) Carbon Isotope Evidence for Microbial Involvement in Exotic Copper Silicate Mineralization, Huinquintipa and Mina Sur, Northern Chile. Economic Geology, 102 (7) 1311-1320 doi:10.2113/gsecongeo.102.7.1311 | Journal (article/letter/editorial) | | anthropogenic environments, including those of acid mine drainage (Johnson and Hallberg, 2003). Sillitoe...Cordillera Occidental in northern Chile and southern Peru is now hyperarid (PPT/PET ≤ 0.05) below 3,000 m...(Fig. 2A). No detailed descriptions of Huinquintipa mine geology are available, but summaries and sketch...Huinquintipa open pit, 40 to 60 m below the pre-mine surface. Cobble-sized clasts, essentially unkaolinized...during the EDTA experiments (see below). However, calcite and other carbonate minerals could also release |
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