 | Simmons, A. T., Tosdal, R. M., Wooden, J. L., Mattos, R., Concha, O., McCracken, S., Beale, T. (2013) Punctuated Magmatism Associated with Porphyry Cu-Mo Formation in the Paleocene to Eocene of Southern Peru. Economic Geology, 108 (4) 625-639 doi:10.2113/econgeo.108.4.625 | Journal (article/letter/editorial) | | Formation in the Paleocene to Eocene of Southern Peru* ADAM T. SIMMONS,1,** RICHARD M. TOSDAL,1,â JOSEPH...California 94305 Peru Copper Corporation, Casilla 303, Toquepala, Peru 4 Southern Peru Copper Corporation...Cuajone, Peru 5 AngloAmerican Exploration, Lima, Peru Abstract The Paleocene to Eocene southern Peru porphyry...porphyry Cu-Mo deposits at Cuajone, Quellaveco, and Toquepala. Ten new zircon U-Pb Sensitive High Resolution...MicroprobeReverse Geometry (SHRIMP-RG) ages for Cuajone and Toquepala, together with published ages for Quellaveco, |  | Clark, Alan H., Farrar, Edward, Kontak, Daniel J., Langridge, Robert J., Arenas F., Mario J., France, Lynne J., McBride, Sandra L., Woodman, Priscilla L., Wasteneys, Hardolph A., Sandeman, Hamish A., Archibald, Douglas A. (1990) Geologic and geochronologic constraints on the metallogenic evolution of the Andes of southeastern Peru. Economic Geology, 85 (7) 1520-1583 doi:10.2113/gsecongeo.85.7.1520 | Journal (article/letter/editorial) | | MetallogenicEvolution of the Andes of Southeastern Peru ALANH. CLARK,EDWARDFARlIAR,DANIELJ. KONTAK,*ROBERT... GedlogoConsultor,Caminosdel Inca 698, Lima 33, Peru LYNNEJ. FRANCE,**SANDRA L. MCBRIDE,PRISCILLA L...post-Paleozoic metallogenicevolutionof southeastern Peru is clarifiedon the basisof the stratigraphic an...Arc in the interval 52.15 (Cuajone)to 57.1 Ma (Toquepala)asthe terminalstagein the evolutionof the subaerial...contiguous centralAndeantransects, southeastern Peru differsmarkedlyfrom other areasof the countryin |  | | Journal (article/letter/editorial) | | 1677-1685 THE SLUMP BRECCIASOF THE TOQUEPALA PORPHYRYCU(-MO) DEPOSIT, PERU: IMPLICATIONS FOR FRAGMENT ROUNDING...typesof oredeposits.In porphyrycoppercenterssuch Peru are interpretedasevidencefor the brecciasmayhosta...fiuidizationprocessesin Hydrothermal Brecciasat Toquepala, Peru the emplacementof the fragmentalmaterials....polyphaseore breccia(the "angular transportin a particle-chargedgaseousstream(see breccia"of recentSo...at Leadville, Colorado;Emmonset al., in the ore breccia,which would be classifiedby Sil1927) or upward(e |  | | Book | | P')76m Purser, W I' C 198T- , âą Metal-mining in Peru, put and present 1by1 W. F . C. Purser. New York...NIOUro.. Peru. . l. Tltle- TN~9.P8T. . -· ' âą 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 |  | Quang, C. X., Clark, A. H., Lee, J. K. W., Guillen B., J. (2003) 40Ar-39Ar AGES OF HYPOGENE AND SUPERGENE MINERALIZATION IN THE CERRO VERDE-SANTA ROSA PORPHYRY Cu-Mo CLUSTER, AREQUIPA, PERU. Economic Geology, 98 (8) 1683-1696 doi:10.2113/gsecongeo.98.8.1683 | Journal (article/letter/editorial) | | VERDE-SANTA ROSA PORPHYRY Cu-Mo CLUSTER, AREQUIPA, PERU CHAN X. QUANG,â ALAN H. CLARK, JAMES K.W. LEE, Department...Queenâs University, Kingston, ON K7L 3N6, Canada AND JORGE GUILLĂN B. Sociedad Minera Cerro Verde S.A., Asiento...Avenida Alfonso Ugarte 304, Casilla 299, Arequipa, Peru Abstract The contiguous Cerro Verde and Santa Rosa...American plate boundary for at least 800 km in southern Peru and northern Chile (Fig. 1a). Centered at latitude...first such data for a porphyry deposit in southern Peru. Geologic Framework Host rocks and structural relationships |  | | Journal (article/letter/editorial) | | p. 321-345. Central Balabac Island, Palawan Province, Philippines: Ecoa. Gâą.oâą..,v. 58, p. 107-130...dike. B (B) Diagram of a simple intermineral breccia. 1246 SCIENTIFIC COMMUNICATION FIG. 2. Intermineral...1 showsdiagramsof a simpleinterminer. dike and breccia. Through-goingveinsthat bothpr, date and post-datethe...involvedthe meaningof and breccias from the Granisle Mine in centr British Columbia. These figuresserveto...chalcopyrite-bearingquartz veins. Granisle Mine, B.C. descriptionsof Braden, Toquepala, and Cananea (Howell and Molloy |  | Quang, C. X., Clark, A. H., W. Lee, J. K., Hawkes, N. (2005) Response of Supergene Processes to Episodic Cenozoic Uplift, PedimentErosion, and Ignimbrite Eruption in the Porphyry Copper Province of Southern Peru. Economic Geology, 100 (1) 87-114 doi:10.2113/100.1.0087 | Journal (article/letter/editorial) | | and Ignimbrite Eruption in the Porphyry Copper Province of Southern PerĂș CHAN X. QUANG, ALAN H. CLARK...area surrounding the Cuajone, Quellaveco, and Toquepala deposits (ca. 17° S) is revised and extended northwestward...were probably active in the Cuajone-Quellaveco-Toquepala district. Slow erosion and the accumulation of...for much of the upgrading of the Cuajone and Toquepala deposits and thr Quellaveco prospect, which are...(54.5 Ma; Minera Quellaveco S.A., unpub. data)-Toquepala (55.0â55.5 Ma; Zweng and Clark, 1995; Clark, 2003) |  | | Journal (article/letter/editorial) | | Economic Geology Vol. 56, 1961, pp. 488-508 BRECCIA AND PEBBLE COLUMNS EPIGENETIC ORE LEONID ASSOCIATED...488 BRECCI.d AND PEBBLE COLUMNS 489 Other breccia columns, hydrothermal pebble dikes, and probably...the porphyrycopperdepositsof the Basin and Range Province,lead-zincdepositsin Yugoslavia,the Oruro silver-tin...rounded,rockfragmentswith or without a matrix. "Breccia chimney" is a synonymousbut less popular term....implied by the word "breccia". In describing the intrusivet2reccias at Toquepala,Peru, Richardand Courtright(44 |  | | Journal (article/letter/editorial) | | ALLEN V. HEYL THOMAS E. MULLENS general outline the mine workings in the two areas alsoare similar. (CompareFig...S. E., 1971, Bedded-ore structures,JeffersonCity Mine, JeffersonCity, Tennessee: EcoN. GEOmGŸ, V. 66,...authorized by the Director, U.S. OF COPPER-BEARING BRECCIA Geological PIPES In their recentpaperSillitoeand...mechanism of formation of this kind of the rupture breccia narrowed down to a few of brecciapipe, I wish...relativetightnessof the dome-shaped roof in the Capoteand East Breccia do/ned roof; such a roof could not have provided |  | | Journal (article/letter/editorial) | | 69, 1974, pp. 412--413 SCIENTIFIC ORIGIN OF BRECCIA COMMUNICATIONS PIPES veins (which contain wall-rock...gapingfissureswould developon been required for breccia pipe identification,are those sections of a multiplanefault...parallel to the movement vector (Fig. 1), i.e., in of breccia pipe distributionis probably biased. Brecciapipesmay...spatialaccommodation for the chamberitself and its breccia filling by a special mechanismor a welltimed combinationof...the brecciapipe walls would knead the contained breccia, resulting in rounding of fragments and increased |  | | Journal (article/letter/editorial) | | The basic type of breccia particular to hydrothermaldevelopments is rupture breccia,formed by hydraulic...hydrothermalsolutions into overlying rocks. This breccia when heaved up or subsidedby magmatic pulsations...hydrothermaldevelopments also includetourmaline breccia-pipes. x Permission to publish granted by the U...gments. Rupture Breccia.--Also known as stockwork, shatter breccia, fracture breccia,and cracklebreccia...determinesthe size âąf individual fragmentsin rupture breccia,appearsto have beendependentat leastto some extent |  | | Journal (article/letter/editorial) | | Earth. In 2017, the Central Andes accounted for the mine production of around 39% of the worldâs copper,...former two occur from Central Chile to southern Peru, whereas the youngest and easternmost extend from...central Chile/Argentina to Bolivia and to northern Peru and beyond. Table 1 summarizes the characteristics...(Chile is the worldâs leading copper producer, with Peru second). 1 Department of Earth Sciences, University...t 2018 INFO BOX cp Magmaticâ hydrothermal breccia cemented by tourmaline and chrysocolla that is |  | | Journal (article/letter/editorial) | | IN COPPER W. P. JOHNSTON MINERALIZED BASIN, BRECCIA PIPES ARIZONA AND J. DAVID LOWELL CONTENTS...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...manyvaluable suggestions. MINERALIZED GENERAL BRECCIA PIPES 919 GEOLOGY The igneous-metamorphic terraneof |  | | Book | | most porphyry copper provinces. Tourmaline and breccia Ă©olumns ported out of the potassic zone by highly...: INTRODUCTIONS 75.0 STRUCTURAL CLASSIFICATION Breccia Pipes : ; ney RS . Lowell and Guilbert Model...Potteriics, Chile . 4 Âą Section Through Arequipa, Peru 5 Âą Section Through Potrerillos, Chile . ; 6...Rego Chile : 7 Âą Michiquillay Regional Geology (Peru) . 8 © Structure at Chuquicamata, Chile . 9 Âą Surface...Morococha, Peru, including Toro Mocho Area . 13 © Structural Outline of Toquepala, Peru . â 14 Âą |  | | Journal (article/letter/editorial) | | peripherywhich may containhigh-grademineralization. Breccia pipes with attendant crackle zones are common...Dio diorite Mi scel laneou s adv advanced bx breccia Cu copper diss disseminated fit fault eh enargite... ..,.[.o..âą..a.âąt..e....U..W.. ............. Toquepala late K(?) Rhy,And, daciteporphyry 59 nonerecognized...teds & metasediments Qmstock 65 NI= & NWfits Peru Dio irregularstock elongate N-S elongate irregular..... 30 , .................................. Toquepala oval, elongateNW original: brecciapipe 70 |  | | 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 Pipeâąa circular, downward-tapering...downward-tapering hole in the volcanics, filled with a breccia, and surroundedby the orebody. It is believed that...The interrelationships of intrusive activity, breccia pipe formation, hydrothermal rock alteration, stockworkfracturing...porphyry-type deposits. INTRODUCTION THE E1 Teniente Mine of the Braden Copper Company is on the western flank |  | | Journal (article/letter/editorial) | | beenappreciated.Eventoday,largematrix-richbodies of breccia are often confused with volcanosediBRECCIAS with...the sameprocess," and "Nature evidentlylovesa breccia,and if no violent phenomenonis available,the brecciais...200 or more (Table2). Pipes(alsotermedchimneys breccia--intrusion and tectonic--are only briefly or columns)are...300 X 900 m at Kidston ployed term hydrothermal breccia describesthe (PlacerExplorationLtd., 1981) or aslittle...volumesof pervasive outline to pipes. Alternatively, breccia and unfracalteration-mineralizationof porphyry |  | Kamenov, G., Macfarlane, A. W., Riciputi, L. (2002) Sources of Lead in the San Cristobal, Pulacayo, and PotosiMining Districts, Bolivia, and a Reevaluation of Regional Ore Lead IsotopeProvinces. Economic Geology, 97 (3) 573-592 doi:10.2113/gsecongeo.97.3.573 | Journal (article/letter/editorial) | | this basis we identify a new ore lead isotope province extending from San Cristobal northward across...eastern Altiplano and into southern PerĂș. This province is coincident with but smaller than the extent...mineralizing event. Ore deposits in the northern part of province IV formed before the thickening of Andean crust...(Fig. 1, inset). Province I comprises the coastal volcanic arc of PerĂș and Chile, province II includes the...573 574 KAMENOV ET AL. 19°S Peru Pro vin ce II Pro vin ce I Province III POTOSI Bolivia 98M013 98M014 |  | Cunningham, Charles G., Zappettini, Eduardo O., Vivallo S., Waldo, Celada, Carlos Mario, Quispe, Jorge, Singer, Donald A., Briskey, Joseph A., Sutphin, David M., Gajardo M., Mariano, Diaz, Alejandro, Portigliati, Carlos, Berger, Vladimir I., Carrasco, Rodrigo, Schulz, Klaus J. (2008) Quantitative Mineral Resource Assessment of Copper, Molybdenum, Gold, and Silver in Undiscovered Porphyry Copper Deposits in the Andes Mountains of South America. Open-File Report 2008-1253. US Geological Survey doi:10.3133/ofr20081253 | Report (issue) | | geological surveys of Argentina, Chile, Colombia, Peru, and the United States Quantitative Mineral Resource...E.O., Vivallo S., Waldo, Celada, C.M., Quispe, Jorge, Singer, D.A., Briskey, J.A, Sutphin, D.M., Gajardo...Carrasco Peru INGEMMET Jorge Quispe Jointly publi shed by: Country Argentina Chile Colombia Peru United...(SEGEMAR), Chile (SERNAGEOMIN), Colombia, (INGEOMINAS), Peru (INGEMMET), and the United States (USGS) iii Probability...Photograph of high-grade porphyry copper ore from a breccia pipe in the uppermost part of the Los Bronces-Rio |  | | Journal (article/letter/editorial) | | fragmentstogether,like the "daciteagglomerate"at Toquepala,Peru. Fracturing is commonin aphanites,commonlyas...the breccia fragments; besidespyrite some coppersulfides may be deposited, as at Toquepala, Peru. This...fragmentsfall back into the vent and form the breccia. The brecciafragmentsare generallyhydrothermallyaltered...the brecciation. Inside the limits of Toquepala orebody in Peru, quartz-tourmaline brecciafragmentsb |  | Braxton, D. P., Cooke, D. R., Ignacio, A. M., Rye, R. O., Waters, P. J. (2009) Ultra-Deep Oxidation and Exotic Copper Formation at the Late Pliocene Boyongan and Bayugo Porphyry Copper-Gold Deposits, Surigao, Philippines: Geology, Mineralogy, Paleoaltimetry, and their Implications for Geologic, Physiographic, and Tectonic Controls. Economic Geology, 104 (3) 333-349 doi:10.2113/gsecongeo.104.3.333 | Journal (article/letter/editorial) | | silt-sand matrix diatreme breccia complex at Boyongan. Within the breccia complex, the thickness of the...unsaturated zone approached 600 m, whereas outside the breccia complex (e.g., at Bayugo), the thickness averaged...during weathering, groundwater flowed into the breccia complex from the north, south, and east, and exited...the breccia complex probably reflects proximity to a steep scarp intersecting the western breccia complex...between the breccia complex and the surrounding wall rocks, coupled with the proximity of the breccia complex |  | | 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 |  | | Journal (article/letter/editorial) | | pit; 200 Kt Mo @ 0.012%; 10 Mt Cu @ (0.3â0.6%) Mine on standby; 52 Kt Mo @ 0.015%; 2.3 Mt Cu @ 0.67%...@ 0.04â0.20%, (average 0.1%) Active underground mine; ~50â60 Kt Mo @ 0.1â0.5%; 50 Kt Cu @ 0.1â0.2% Lebedev...1â0.5% in breccia, average 0.058%); 500â600 Kt Cu: 0.02â0.20% in stockwork, 0.02â0.3% in breccia 2â4 240â220...stockwork and breccia ores. Stockwork ores contain 0.04 to 0.10% Mo and 0.02 to 0.20% Cu. The breccia ore consists...containing molybdenite, pyrite and chalcopyrite. The breccia ore contains from 0.1 to 0.5% Mo and 0.02 to 0 |  | | Journal (article/letter/editorial) | | s. LATITE PORPHYRY BRECCIA PIPE I Diamond drill hole. DACITEPORPHYRY Mine workings. QUARTZDIORITE...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...pipe,a breccia-filled, circularpipewith surfacediameter of 1,200 m which tapers with depth. Breccia fragments |  | | Book | | Andes W. S. Pitcher 152 The Coastal Batholith of Peru MP. Atherton 168 Lead isotope systematics in...batholithic rocks of the Western and Coastal Cordilleras, Peru S.B. Mukasa and G.R. Tilton 180 Geochemical characteristics...evolution of the Cordillera Oriental, southeastern Peru D.J Kontak, A.M. Clark and E. Farrar 203 Geochemical...(Northern Volcanic Zone, NVZ: ea. 5°N-2°S), south Peru-north Chile (Central Volcanic Zone, CVZ: ea. 16-28°S)...the Andes may be divided into five segments. In Peru (ea. 2-15°S) and central Chile (ea. 27-33°S), the |
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