 | | Journal (article/letter/editorial) | | Practical Experience of Filtered Tailings Technology in Chile and Peru: An Environmentally Friendly Solution Carlos...Practical Experience of Filtered Tailings Technology in Chile and Peru: An Civil Works and Geology Department...Catholic University of Temuco, Temuco 4780000, Chile Facultad de Ingeniería, Universidad Continental...ccacciuttolo@uct.cl Abstract: In the last 20 years many mining projects around the world have applied a tailings...advances in filtered tailings technology applied in Chile and Peru with emphasis on: (i) filtering technology |  | Arancibia, Gloria, Matthews, Stephen J., Cornejo, Paula, de Arce, Carlos Pérez, Zuluaga, José I., Kasaneva, Stabro (2006) 40Ar/39Ar and K–Ar geochronology of magmatic and hydrothermal events in a classic low-suphidation epithermal bonanza deposit: El Peñon, northern Chile. Mineralium Deposita, 41 (5) 505-516 doi:10.1007/s00126-006-0078-2 | Journal (article/letter/editorial) | | low-suphidation epithermal bonanza deposit: El Peñon, northern Chile Received: 20 December 2005 / Accepted:... Abstract The epithermal El Peñon gold–silver deposit consists of quartz–adularia veins emplaced within...the Paleocene–Lower Eocene Au–Ag belt of northern Chile. Detailed K–Ar and 40Ar/39Ar geochronology on volcano–...The Paleocene to Lower Eocene magmatism in the El Peñon area is confined to a rhomb-shaped basin, which...geochronology of hydrothermal adularia from the El Peñon deposit yields ages between 51.0±0.6 and 53.1±0 |  | | Journal (article/letter/editorial) | | AND SUPERGENE WEATHERING IN THE EL PEÑÓN DISTRICT, NORTHERN CHILE IAN WARREN,† Yamana Gold, 9670 Gateway...Peñón epithermal gold-silver deposit, Region II, Chile, comprises multiple epithermal veins, which contain...the Paleocene metallogenic belt of northern Chile. Quartz-adularia-carbonate veins are hosted in Paleocene...composition intrusive rocks also occur in the district and locally preserve alteration associated with...deposit. Timing of hydrothermal activity in the district and age and duration of weathering are constrained |  | Gulbranson, Erik L., Isbell, John L., Montañez, Isabel P., Limarino, C. Oscar, Marenssi, Sergio A., Meyer, Kyle, Hull, Clara (2014) Reassessment of mid-Carboniferous glacial extent in southwestern Gondwana (Rio Blanco Basin, Argentina) inferred from paleo-mass transport of diamictites. Gondwana Research, 25 (4) 1369-1379 doi:10.1016/j.gr.2013.03.017 | Journal (article/letter/editorial) | | mid-Carboniferous glacial extent in southwestern Gondwana (Rio Blanco Basin, Argentina) inferred from paleo-mass transport...Carboniferous. The glacigenic diamictites in the Rio Blanco Basin were ultimately emplaced as gravity flows...sediments during the late Paleozoic ice age in the Río Blanco Basin of northwestern Argentina. Although, resedimentation...gulbrans@uwm.edu (E.L. Gulbranson). ice in the Río Blanco Basin, sourced from the north, independent of the...sources to the south and west (Fig. 1). The Río Blanco Basin was a retro-arc basin that developed during |  | | Journal (article/letter/editorial) | | LONG-LIVED HYDROTHERMAL SYSTEM IN THE FRESNILLO SILVER DISTRICT, MEXICO: CONSTRAINTS FROM 40Ar/39Ar GEOCHRONOLOGY...Environmental Sciences Department, New Mexico Institute of Mining and Technology, Socorro, New Mexico 87801 2New...and Mineral Resources, New Mexico Institute of Mining and Technology, 801 Leroy Place, Socorro, New Mexico...mineralized veins. Oligocene rhyolitic domes and a quartz-monzonite stock also occur in the area, whereas...and dikes are the youngest igneous rocks in the district. Spatial association of Tertiary volcanic rocks |  | Poblete, J. A., Bissig, T., Mortensen, J. K., Gabites, J., Friedman, R., Rodriguez, M. (2014) The Cerro Bayo District, Chilean Patagonia: Late Jurassic to Cretaceous Magmatism and Protracted History of Epithermal Ag-Au Mineralization. Economic Geology, 109 (2) 487-502 doi:10.2113/econgeo.109.2.487 | Journal (article/letter/editorial) | | Economic Geology, v. 109, pp. 487–502 The Cerro Bayo District, Chilean Patagonia: Late Jurassic to Cretaceous...Vitacura, Santiago, Chile Abstract The Cerro Bayo low sulfidation epithermal district is located in the...tip of the Deseado Massif epithermal silver-gold province. Mineralization is hosted in the mainly rhyolitic...and dikes, including Cerro Bayo proper, aligned on the prominent N-S–striking Cerro Bayo fault and intruding...zircon) are present in the western part of the district at Laguna Verde. Silver and gold mineralization |  | Arribas, A., Arribas, I., Draper, G., Hall, C., Kesler, S. E., McEwan, C., Muntean, J. L. (2011) 40Ar/39Ar DATING OF ALUNITE FROM THE PUEBLO VIEJO GOLD-SILVER DISTRICT, DOMINICAN REPUBLIC. Economic Geology, 106 (6) 1059-1070 doi:10.2113/econgeo.106.6.1059 | Journal (article/letter/editorial) | | DATING OF ALUNITE FROM THE PUEBLO VIEJO GOLD-SILVER DISTRICT, DOMINICAN REPUBLIC* ANTONIO ARRIBAS,1,** ISABEL...MCEWAN,5 AND JOHN L. MUNTEAN6 1 Newmont 2 School Mining Corporation, 1332 Forest Trails Drive, Castle Rock...Moore and Monte Negro deposits in the Pueblo Viejo district, as well as from a newly discovered alunite-bearing...controversy about the age of the Pueblo Viejo district in the Dominican Republic (Sillitoe et al., 2006...of the controversy are those who consider the district to be the product of a Late Cretaceous magmatic-hydrothermal |  | | Book | | ---- |----：-（ |- % A DICTIONARY OF SPANISH MINING TERMIS MININAND METALURCICALPUBLICATIONS Geology...Studies. Mining Geology . . Prospecting for Minerals . Ore and Stone Mining. . Elements of Mining . . Coal...Coal Mining . Practical Coal Mining . Elementary 39 Elect. Colliery Practice . Mine-Surveying . . Mine...Mine Air, Investigation of. Mining Law . . Blasting and Explosives . Testing Explosives . Shaft Sinking...Sinking . 39 - e - - - º - Mining - - . - *3 - - - 7º . - - $10.00 - H. W. HUGHES, F |  | | Journal (article/letter/editorial) | | comprises both ~ 200 Ma volcanics (e.g. the Peñon Blanco Formation) and 165 Ma volcanic and sedimentary...Ridge Fm.; Gopher Ridge Fm.; Jasper Point Fm.; Peñon Blanco Fm.; Mariposa Fm.; Smartville Complex; Slate...Complex; Jarbo Gap ophiolite; Owl Gulch volcanics; Peñon Blanco Fm.; Jasper Pt. Fm.; Slate Creek Complex Volcanic...Tuolumne ultramafics complex; Owl Gulch volcanics; Peñon Blanco Fm.; Jasper Point Fm.; phyllite and greenschist...Complex; Lake Combie Complex; Jasper Point Fm.; Peñon Blanco Fm.; Cosumnes Fm.; Colfax Sequence.; Log Town |  | Pan, Jun-Yi, Ni, Pei, Chi, Zhei, Wang, Wen-Bin, Zeng, Wen-Can, Xue, Kai (2019) Alunite 40Ar/39Ar and Zircon U-Pb Constraints on the Magmatic-Hydrothermal History of the Zijinshan High-Sulfidation Epithermal Cu-Au Deposit and the Adjacent Luoboling Porphyry Cu-Mo Deposit, South China: Implications for Their Genetic Association. Economic Geology, 114 (4) 667-695 doi:10.5382/econgeo.4658 | Journal (article/letter/editorial) | | Institute of Geological Survey, Fuzhou 350013, China Mining Group Co., Ltd., Shanghang 364200, China Abstract...deposit, constitutes a major porphyry-epithermal ore district in South China. Current debate centers on whether...question of importance for exploration in the district. In this contribution, the magmatichydrothermal...assemblages exist at Zijinshan, namely, (1) alunite-quartz-covellite cemented breccias; (2) alunite-digenite...suggest a magmatic-hydrothermal origin for alunite-quartz-covellite cemented breccias and alunite-digenite |  | | Journal (article/letter/editorial) | | Quiaca BI LE BE LT N 1. Hombre Muerto 2. Cerro Plegado 3. El Peñón 4. Cazadero Grande M O B...elsewhere equigranular matrix of plagioclase (Pl) and quartz (Qtz). (b) Sample 01–80 from Sierra Umango, titanite...ages of metamorphism are described from Belén, N Chile (c. 18S; Wörner et al., 2000). The age gap of...206 0.55 (1) 440 560 0.69 South Puna - El Peñon: 7-100 (6) 540 550 U : 514±2 Ma U : 515±2 Ma...South Puna - Cerro Plagado: AN3-39 (3) (1, 3) (4) 540 550 560 South Puna - El Peñon: 01-22 (2) |  | | Journal (article/letter/editorial) | | other arc-related basins of western Argentina: Río Blanco, Calingasta–Uspallata, and Tepuel. A Bashkirian...Imperial Formation correlate with events in the Río Blanco and Calingasta–Uspallata Basins to the north, whereas...the San Rafael Basin to the records from the Río Blanco and Calingasta–Uspallata Basins to the north and...the Cochicó Group are volcanic breccias of the Cerro Carrizalito Group that formed during the Late Permian–Early...and the tectonic extension that followed the Río Blanco tectonic event in the Late Mississippian (Viséan; |  | | Journal (article/letter/editorial) | | 451 AMERICAN MINERALOGIST Manganese removal from mine waters—investigating the occurrence and importance...mineralogical controls on mine drainage of the abandoned Ervedosa tin mine in north-eastern Portugal—M...in a picrite lava of the Emeishan large igneous province, SW China—Zhaochong Zhang, Jingwen Mao, Fusheng...mapping of the Platreef at the Zwartfontein South mine: implications for the timing of magmatic events...Special Issue on mineralogy and Geochemistry of Acid Mine Drainage and Metalliferous Minewastes—David J. Vaughan |  | | Journal (article/letter/editorial) | | little. In the region of Hermosillo, Sonora, in the district of Moctezuma, granite, crossed by dikes of pegmatite...pegmatite, occupies great tracts of country. In the district of Altar syenites and diorites replace the granite...distribution of these rocks. Each metalliferous district presents in the mass of its rocks a similar series...rock which occurs at various points in the mining district of Parral, in the state of Chihuahua. It is...and sometimes to epidote. To judge by the free quartz which it sometimes contains, this rock bears some |  | Castor, S. B., Boden, D. R., Henry, C. D., Cline, J. S., Hofstra, A. H., McIntosh, W. C., Tosdal, R. M., Wooden, J. P. (2003) The Tuscarora Au-Ag District: Eocene Volcanic-Hosted EpithermalDeposits in the Carlin Gold Region, Nevada. Economic Geology, 98 (2) 339-366 doi:10.2113/gsecongeo.98.2.339 | Journal (article/letter/editorial) | | Vol. 98, 2003, pp. 339–366 The Tuscarora Au-Ag District: Eocene Volcanic-Hosted Epithermal Deposits in...Mexico Bureau of Geology, New Mexico Institute of Mining and Technology, Socorro, New Mexico 87801 RICHARD... California 94025 Abstract The Tuscarora mining district contains the oldest and the only productive...productive Eocene epithermal deposits in Nevada. The district is a particularly clear example of association of...ratios (110–150), narrow alteration zones, and quartz and carbonate veins developed mostly in intrusive |  | | Book (edition) | | granular y cristales tabulares gruesos. Color blanco grisáceo, raya gris, brillo metálico. Clivaje {0001}...o complejas. Propiedades ópticas: opaco, color blanco, R1-R2=74,5-78,0% (540nm), pleocroismo y anisotropía...Propiedades físicas: granos redondeados. Color blanco grisáceo, se empaña a castaño, brillo metálico...Fuertemente magnético. Propiedades ópticas: opaco, color blanco, R=63,1 (540 nm), isótropo. Análisis químicos:...Neuquén (6). Se aloja en el yeso de la Fm. Auquilco. Cerro Partido, Neuquén (6). Se aloja en el yeso de la |  | Witt, W. K., Hagemann, S. G., Villanes, C., Vennemann, T., Zwingmann, H., Laukamp, C., Spangenberg, J. E. (2016) Multiple Gold Mineralizing Styles in the Northern Pataz District, Peru. Economic Geology, 111 (2) 355-394 doi:10.2113/econgeo.111.2.355 | Journal (article/letter/editorial) | | Gold Mineralizing Styles in the Northern Pataz District, Peru* W. K. Witt,1 S. G. Hagemann,1 C. Villanes...Abstract Gold production from the northern Pataz district in the eastern Andean Cordillera of Peru has been...been sourced mainly from mesothermal quartz-carbonate-sulfide veins hosted by the Mississippian Pataz...batholith, in the Vijus-Santa Filomena area of the district. Both are located within a central horst; similar...alteration are common to both. However, comb-textured quartz, the chemical compositions of bulk ore and sulfide |  | Putirka, K. D., Canchola, J., Rash, J., Smith, O., Torrez, G., Paterson, S. R., Ducea, M. N. (2014) Pluton assembly and the genesis of granitic magmas: Insights from the GIC pluton in cross section, Sierra Nevada Batholith, California. American Mineralogist, 99 (7) 1284-1303 doi:10.2138/am.2014.4564 | Journal (article/letter/editorial) | | Complex. FGIS = Fine Gold Intrusive Suite; QM = Quartz Mountain pendant. 151 Ma (Saleeby et al. 1989;...is defined based on the appearance of biotite; “quartz monzonites” within the Meladiorite are now shown...Hypabyssal Mafic Porphyry Bullion Mountain Penon Blanco 159 Ma volcs. Greenstone 159 Ma volcs. Amphibolite...felsic materials. The felsic dikes consist of Pl + quartz + potassium feldspar + Hbl + biotite ± zircon ±...± Cpx ± biotite ± titanite ± apatite, with rare quartz and Ol. Plagioclase grains often have overgrowth |  | | Journal (article/letter/editorial) | | Coyaguayma ignimbrite comprises plagioclase (An26-18), quartz, Ba-rich and Ba-poor sanidine, minor Al-rich ferromagnesian...accessory and ferromagnesian phases crystallized before quartz and feldspars. Mineral equilibria suggest that...(70%) fractionation of plagioclase, K-feldspar, quartz and biotite, with minor magnetite and apatite from...with SP characteristics are scarce in this vast province (Fig. 1), and the same is true for mafic magmas...dyke; San Rafael pluton; Pachachaca, Jama-Jama and Cerro Cancahuine Formations); 2 — Morococala; 3 — Los |  | | Journal (article/letter/editorial) | | Formation by Limarino et al. (2014a) at the locality of Cerro Veladero (Fig.1A). Toward the west, in the Loma...dominated by granites, schists, limestones, and quartz that float in a greenish-grey sandy-mudstone matrix...shales of the postglacial transgression in the Cerro Guandacol area (Gulbranson et al., 2010) (Fig. 11)...Guandacol Formation (Middle Carboniferous) in the Cerro Bola area, Paganzo Basin, 33 ACCEPTED MANUSCRIPT...in the Rio Del Peñon Formatinon, late 36 ACCEPTED MANUSCRIPT Carboniferous, Rio Blanco Basin, northwestern |  | ROY, P. D., CABALLERO, M., LOZANO, R., PI, T., MORTON, O. (2009) Late Pleistocene-Holocene geochemical history inferred from Lake Tecocomulco sediments, Basin of Mexico, Mexico. GEOCHEMICAL JOURNAL, 43 (1) 49-64 doi:10.2343/geochemj.1.0006 | Journal (article/letter/editorial) | | 19°52’ N 98°18’ Tecocomulco Town 98°22’ Apan-Peñon andesite 98°18’ 0 2 Km Fig. 1. Location map of...and north of the lake. The Chichicuatla and Apan-Peñon andesites outcrop to the north and south of the...core) Units Ia Ib II IIIa IIIb Depth (cm) Quartz Plagioclases K-feldspars Tridymite/ Cristobalite...clastic minerals contains plagioclases, polymorphs of quartz (i.e., tridymite and cristobalite), halloysite...phases. Few samples along the depth profile contain quartz, K-feldspars, micas, amphiboles and iron oxides |  | Dahlquist, J.A., Galindo, C., Pankhurst, R.J., Rapela, C.W., Alasino, P.H., Saavedra, J., Fanning, C.M. (2007) Magmatic evolution of the Peñón Rosado granite: Petrogenesis of garnet-bearing granitoids. Lithos, 95 (3) 177-207 doi:10.1016/j.lithos.2006.07.010 | Journal (article/letter/editorial) | | significant. The Peñón Rosado granite (469 ± 4 Ma) at Cerro Asperecito is an S-type granite that contains an...al., 1998; Fig. 1. Simplified geological map of Cerro Asperecito and the Peñón Rosado granite. Main inset...This study focuses on Famatinian granitoids at Cerro Asperecito in the westernmost region of the Famatinian...metaluminous suite (95% of the granitic rocks at Cerro Fig. 2. Geological cross-section of the Peñón Rosado...high MnO contents (average of 5 samples = 2.41%). Quartz forms anhedral crystals and in PRG3 occurs both |  | | Book | | Holmes wrote, The antiquarian literature of the province is extremely meager, being conf ined to brief...discovered that at some period of the past the province was thickly populated, and by races possessed...Cooke and colleagues’ (2000) recent f ieldwork at Cerro Juan Díaz, where a number of different vectors—precious...Fonseca Zamora 1979; 1981) and Rivas (Quilter and Blanco 1995), await future archaeological study in Costa...archaeologist. At the Rivas site, in Costa Rica, Aida Blanco and I excavated two low-status cemeteries that |  | | Journal (article/letter/editorial) | | comprise planar fractures and deformation elements in quartz and polysynthetic twinning in carbonate minerals;...minerals; the maximum shock pressure as evidenced by quartz is below 26 GPa. The allochthonous breccias occasionally...carrying diaplectic crystals, coesite, and ballen quartz as well as true melt glasses and a variety of lithic...5 GPa yielded nearly complete transformation of quartz into diaplectic glass. We therefore exclude a specific...fragments of the lithologies given above, ballen quartz as well as fresh diaplectic and melt glasses (Figs |  | KELLER, Gerta, ADATTE, Thierry, STINNESBECK, Wolfgang, STüBEN, Doris, BERNER, Zsolt, KRAMAR, Utz, HARTING, Markus (2004) More evidence that the Chicxulub impact predates the K/T mass extinction. Meteoritics & Planetary Science, 39 (7) 1127-1144 doi:10.1111/j.1945-5100.2004.tb01133.x | Journal (article/letter/editorial) | | particularly good outcrop exposures at Loma Cerca and El Peñon (Keller et al. 2002). The oldest and stratigraphically...glass fragments and spherules are common along with quartz and feldspar xenocrysts with planar deformation...correlated across the region (e.g., 25 km from El Peñon to Loma Cerca) (Stinnesbeck et al. 2001; Keller |
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