 | | Journal (article/letter/editorial) | | Patagonia, Argentina: response to subduction of the Chile Ridge Richard H. Sillitoe 1 Received: 22 March 2018...massif during early stages of subduction of the Chile oceanic-ridge spreading center at the Pacific margin...oxidation in both the Deseado massif and Atacama Desert of northern Chile was the result of Cenozoic uplift...massif, up to 30 myr of supergene activity in the Atacama Desert were coming to an end because of the onset... Epithermal Au-Ag deposits . Tectonic uplift . Chile Ridge . Deseado massif Introduction Supergene sulfide |  | | Journal (article/letter/editorial) | | Sciences, North Catholic University, Antofagasta, Chile, 2Earth Evolution Sciences, Graduate School of Life...Introduction In the Coastal Cordillera of Northern Chile (north of Santiago, <34°S), numbers of volcanic-hosted...economically important cupriferous metallogenic belt in Chile. Similar type of deposits in North America are named...principally in the northwest Canada and north Michigan district (e.g. White, 1968; Wilton & Sinclair, 1988). Most...Norte, Av. Angamos 0610, Casilla 1280, Antofagasta, Chile. Email: skojima@caliche.ucn.cl *Present address: |  | | Book | | Universidad de Concepci6n Casilla 4107 Concepci6n, Chile ISBN 978-3-642-88284-5 DOI 10.1007/978-3-642-88282-1.... . . . 37 The Metalliferous Ore Deposits of Chile and Argentina, and Their Geologic Framework J. Oyarzun.... . . . . . . . . . . 147 X Contents El Aguilar Mine: An Ordovician Sediment-Hosted Stratiform Lead-Zinc...Sulfides in the Greenstone Belt of South-Central Chile - An Overview G. Alfaro and S. Callao . . . . ....Formation and Massive Sulfide Orebodies, South-Central Chile: Geologic and Isotopic Aspects S. Callao, G. Alfaro |  | | Journal (article/letter/editorial) | | Candelaria-Punta del Cobre Iron Oxide Cu-Au(-Zn-Ag) Deposits, Chile ROBERT MARSCHIK†,* Lehrstuhl für Lagerstättenlehre...batholith near Copiapó, Chile. This belt includes the large Candelaria mine and a group of middle- and...and small-sized mines in the Punta del Cobre district, which is located about 3 km northeast of the Candelaria...alteration at Candelaria. In the Punta del Cobre district, ore in the deeper parts of the deposits is similarly...formation of specular hematite. In parts of the district, the pseudomorphic replacement of early specular |  | Ford, A., Hagemann, S.G., Fogliata, A.S., Miller, J.M., Mol, A., Doyle, P.J. (2015) Porphyry, epithermal, and orogenic gold prospectivity of Argentina. Ore Geology Reviews, 71. 655-672 doi:10.1016/j.oregeorev.2015.05.013 | Journal (article/letter/editorial) | | gold deposits such as those in the El Indio–Pascua gold district which hosts the Veladero and Pascua-Lama...and the Deseado Massif gold district which hosts, amongst others, the Cerro Vanguardia low sulfidation epithermal...Northwestern Argentina, Culampajá, Farallón Negro-Bajo de la Alumbrera, El Indio–Pascua, Nevados del Famatina...Massif. Below a brief description of the regional district geology and deposit setting is provided. For a...detailed references provided. Note that in each gold province only major deposits or deposits that have been |  | Zentilli, Marcos, Munizaga, Francisco, Graves, Milton C., Boric, Ricardo, Wilson, Nicholas S. F., Mukhopadhyay, Prasanta K., Snowdon, Lloyd R. (1997) Hydrocarbon Involvement in the Genesis of Ore Deposits: An Example in Cretaceous Stratabound (Manto-Type) Copper Deposits of Central Chile. International Geology Review, 39 (1) 1-21 doi:10.1080/00206819709465257 | Journal (article/letter/editorial) | | Stratabound (Manto-Type) Copper Deposits of Central Chile a b c Marcos Zentilli , Francisco Munizaga ,...de Geologia , Universidad de Chile , Casilla 13518, C21, Santiago, Chile c Cuesta Research Limited ,...Disputada Las Condes S.A. , Casilla 16178, Santiago, Chile e Department of Earth Sciences , Dalhousie University...Stratabound (Manto-Type) Copper Deposits of Central Chile, International Geology Review, 39:1, 1-21, DOI:...Departamento de Geología, Universidad de Chile, Casilla 13518, C21, Santiago, Chile MILTON C. GRAVES, Cuesta Research |  | Aguirre-Urreta, M. Beatriz, Mourgues, F. Amaro, Rawson, Peter F., Bulot, Luc G., Jaillard, Etienne (2007) The Lower Cretaceous Chañarcillo and Neuquén Andean basins: ammonoid biostratigraphy and correlations. Geological Journal, 42 (2) 143-173 doi:10.1002/gj.1068 | Journal (article/letter/editorial) | | Av. Santa Marı́a 0104, Providencia, Santiago, Chile 3 IRD–LMTG Observatoire Midi-Pyrénées, 14 Avenue...the Central Andes from Northern Perú to Southern Chile, the basins are characterized by a similar palaeogeography... Chañarcillo (formerly Atacama) (268450 –318200 S), Aconcagua-Central Chile (328–358S), Neuquén Embayment...Cretaceous succession crops out in the southern Atacama region as a NNE-trending belt from south of Vallenar...del Cobre Formation is named the lower Geraldo Negro Member, which is composed of massive andesitic and |  | | Report (chapter) | | Cauchari; 2, Cerro Negro de Olaroz; 3, Cerro Tropapete; 4, Cerros Negros de Jama; 5, El Toro; 6, Campo...Campo Negro; 7, Patahuasi; 8, Cerro Morado; 9, Cerro Bitiche; 10, Cerro Barro Negro; 11, Mina Pabellón...2010). This event produced a major ignimbritic province c. (11– 15) × 103 km3 in volume (Kay et al. 2010;...Cauchari –Porvenir mine, the Pabellón mine, Cerro Tropapete and Cerro Barro Negro) or may be either poorly...Jama and El Toro-Campo Negro) or form small mafic volcanic fields (e.g. Cerro Morado, Cerro Bitiche and |  | | Journal (article/letter/editorial) | | located in west-central Argentina and eastern Chile, between latitudes 348S and 418S. One species is...over most of southern Patagonia (Argentina and Chile) south of 478S (Figure 1). Two groups of species...and figured N A ARGENTINA 34º B N ARGENTINA CHILE URUGUAY R ío NEUQUÉN BASIN mant e D ia l ue...del Chihuido 36º 1 SALADO BASIN NEUQUÉN BASIN MENDOZA 36º LA PAMPA CHILE COLORADO BASIN 40º...areas 0 Río Salado Quintuco 250 Km 2 Bajada uqué Mallín del Agrio Quemado Cerro Negro Picún Leufú |  | | Journal (article/letter/editorial) | | and Cenozoic Andean ore deposits, north-central Chile (30–34S) Received: 21 June 2001 / Accepted: 21...Geologı́a, Universidad de Chile, Casilla 13518, Correo 21, Santiago, Chile similar composition to those...Andean Cordillera, in particular Peru, northern Chile, and Bolivia, whose genesis is intimately related...Geotectonic setting of the Andean arc in northern Chile, showing distribution of Paleozoic batholiths, eastern...significant lead and zinc are associated with copper in the El Bronce vein system (Camus et al. 1991). Gold is present |  | | Journal (article/letter/editorial) | | Geology of Aconcagua Province and Its Relationship to the Central Valley Graben, Chile W. D CARTER and LUIS...Investigations Geologicas, Santiago, Chile Structural Geology of Aconcagua Province and Its Relationship to the...the Central Valley Graben, Chile Abstract: Aconcagua Province is herein divided into three major structural...recognized farther south. The coastal structural province includes the Coastal Cordillera which is underlain...coastal margin, Along the eastern edge of the province is the Los Angeles fault zone, a wide, poorly |  | | Journal (article/letter/editorial) | | Oregon 97370 and Minera Yanacocha and Newmont Mining Corporation, Cajamarca, Peru 2Department 3College...argillic-altered Miocene volcanic rocks in the Yanacocha district, northern Peru (lat. 6°59'30" S, long. 78°30'45"...relation to the gold ores on the basis of new district-scale geologic mapping, 69 40Ar/39Ar ages on igneous...and Chaupiloma (19.5–15.9 Ma), and the dacitic Cerro Fraile pyroclastics (15.5–15.1 Ma). The younger...associated with gold deposits at Quilish and Cerro Negro (~7 Moz Au) and stage 1 alunite (13.6–12.6 Ma) |  | Gómez Peral, Lucía E., Poiré, Daniel G., Strauss, Harald, Zimmermann, Udo (2007) Chemostratigraphy and diagenetic constraints on Neoproterozoic carbonate successions from the Sierras Bayas Group, Tandilia System, Argentina. Chemical Geology, 237 (1) 109-128 doi:10.1016/j.chemgeo.2006.06.022 | Journal (article/letter/editorial) | | into the Villa Mónica (sandstones and dolomites), Cerro Largo (siliciclastic rocks) and Loma Negra (limestones)...(limestones) formations, unconformably overlain by the Cerro Negro Formation (siliciclastic rocks with basal marls)...the age of the overlying siliciclastic dominated Cerro Largo Formation is poorly constrained. Awhole rock...age of 769± 12 Ma on the same unit. The age of Cerro Negro Formation, the youngest unit in the Sierras Bayas...a minimum depositional age of 680 Ma for the Cerro Negro Formation. This age is consistent with the recent |  | | Report (chapter) | | putative glaciogenic intervals at the base of the Cerro Largo Fm. and in the Punta Mogotes borehole. The...Bayas Group and the unconformably overlying Cerro Negro and Balcarce formations. Whereas the stratigraphic...putative glacial diamictite occurs at the base of the Cerro Largo Fm. in the lower Sierras Bayas Group and crops...of Olavarrı́a in the centre of the Buenos Aires province of Mar del Plata on the Atlantic coast (Fig. 54...low-angle unconformity occurs between the Cambrian Cerro Negro Fm. and the overlying Ordovician Balcarce Fm |  | | Journal (article/letter/editorial) | | 1301-1316 The AndacolloStrata-BoundGold Deposit, Chile, and Its Position in a Porphyry Copper-GoldSystem...MANUEL REYES JosdZapiola 7666-Q, La Reina,Santiago,Chile Abstract The Andacollominingdistrictis in the CoastalCordilleraof...central Chile, IV Region,Coquimbo Province,400 km north-northeastof Santiago(Fig. 1). The district lies...northfromSantiago(Fig. 1). History and productionof the district Two typesof mineralization arepresentin the ...1607, Andacollowasdescribedby localminersasthe "district with riversof gold." It becameandremainedChile's |  | | Journal (article/letter/editorial) | | ILLITE TRANSFORMATION IN CRETACEOUS BENTONITES, CERRO NEGRO, NEW MEXICO W, CRAWFORD ELLIOTT, 1 ANDREA M....outside the thermal aureole of the Pliocene Cerro Negro volcanic neck. Overall, randomly ordered mixed-layered...due to the emplacement of Cerro Negro. In a core angled toward Cerro Negro, the percentages of illite...layers in I-S from the bentonite closest to Cerro Negro are slightly higher (32-37%) than in most other...Average = 41 Ma; N = 4) than those of I-S further fwm Cerro Negw in the same core (41-48 Ma; Average = 44 Ma; |  | | Journal (article/letter/editorial) | | particularly IS epithermal orebodies in any particular district, irrespective of whether or not paleosurface features...lithocap of the Marte porphyry gold deposit, northern Chile (see Sillitoe 1994). b Steam-heated alteration exposed...Norte HS gold-silver orebody at La Coipa, northern Chile. Note its white, friable character. c Steam-heated...peripheral to the La Coipa HS-IS gold-silver district, Chile. f Hydrothermal breccia, generated by shallow-seated...steam-heated zone, Pascua-Lama HS gold-silver deposit, Chile. Geologist stands just left of contact with non-brecciated |  | | Report (issue) | | Pliocene-Quatemary volcanic centers in Cerro Domuyo in Neuquen Province, Argentina. Photo by Victor Ramos...of the Andean Southern Volcanic Zone in Neuquen Province, Argentina. Photo by Gonzalo Zamora Valcarce....geometry of the Neuquen Basin in northeastern Neuquen Province, Argentina .. .... 147 E. Cristallini, G Bottesi...characteristics of the Caviahue-Copahue volcanic complex, Province of Neuquen, Argentina ..........................creative investigations of the Andes of Argentina and Chile. He mapped vast areas of the cordillera, surveying |  | | Journal (article/letter/editorial) | | Permian sandstone; Blanquitos thrust hangingwall Silurian argillite; Western AP; Cerro Negro Carboniferous...Carboniferous sandstone; SVF thrust hangingwall Vallecito Fm (Oligocene); Niquivil thrust footwall Cuculí Fm...Sierra de Valle Fértil in the Sierras Pampeanas Province (Fig. 1B). The chronology of deformation in the...magnitude (M > 6.0) earthquakes in the San Juan Province of Argentina. The Neogene Bermejo Basin stratigraphy...sediments in the area, and consists of conglomerate, sandstone, siltstone, and rare air-fall volcanic tuff, deposited |  | | Journal (article/letter/editorial) | | (Villa Mónica, Cerro Largo, Olavarría and Loma Negra Formations) and the Cerro Negro Formation, exposed...exposed along the Tandilia system in the province of Buenos Aires (Argentina) were revisited and studied...isolated from the latest Ediacaran–Early Cambrian Cerro Negro Formation (component C). In addition, the Ediacaran...0◦ . Siltstones and claystones of the Ediacaran Cerro Largo Formation were carriers of a characteristic...Bayas Group and the latest Ediacaran to Cambrian Cerro Negro Formation. These units correspond to those originally |  | Bastias, Joaquin, Calderón, Mauricio, Israel, Lea, Hervé, Francisco, Spikings, Richard, Pankhurst, Robert, Castillo, Paula, Fanning, Mark, Ugalde, Raúl (2020) The Byers Basin: Jurassic-Cretaceous tectonic and depositional evolution of the forearc deposits of the South Shetland Islands and its implications for the northern Antarctic Peninsula. International Geology Review, 62 (11). 1467-1484 doi:10.1080/00206814.2019.1655669 | Journal (article/letter/editorial) | | Departamento de Geología, Universidad de Chile, Santiago, Chile; bEarth Sciences Department, Université...Universidad Andres Bello, Sazie 2119, Santiago, Chile; dVisiting Research Associate, British Geological...Ciencias, Universidad Mayor, Providencia, Santiago, Chile; h PEDECIBA Geociencias, Facultad de Ciencias, Universidad...Departamento de Geología, Universidad de Chile, Plaza Ercilla 803, Santiago, Chile Supplemental data for this article...subaerial and non-marine volcaniclastic rocks of the Cerro Negro Formation (Figure 3). 2.1.1 Anchorage formation |  | | Book | | RASTELLI Buenos Aires - 1999 2 Tapa: Vista hacia el sur desde la Puerta de las Angosturas, ruta provincial...virtudes y la influencia que Roberto Caminos tuvo en el progreso del conocimiento geológico de nuestro país...este libro de Geología Argentina, del cual fue desde el comienzo su editor, es una excelente oportunidad...Ciencias Geológicas en el viejo edificio de Perú y Alsina, donde tenía su sede el Departamento de Ciencias...Buenos Aires. Nuestro contacto formal recién fue en el segundo cuatrimestre, durante una clase de análisis |  | | Thesis/Dissertation | | Descripción del área de estudio 13 Trabajos citados en el texto 15 CAPÍTULO 2: GEOLOGÍA REGIONAL 16 Introducción...Antecedentes Metalogenéticos 45 Trabajos citados en el texto 46 CAPÍTULO 3: MARCO TECTÓNICO 57 Introducción...Evolución Tectónica 63 Trabajos citados en el texto 64 CAPÍTULO 4: EL MAGMATISMO CRETÁCICO SUPERIOR-TERCIARIO...y Conclusiones parciales 89 Trabajos citados en el texto 91 Lic. Salvioli Melisa A. Tesis Doctoral...Conclusiones parciales 128 Trabajos citados en el texto 131 CAPÍTULO 6: GEOQUÍMICA MINERAL 134 |  | | Report (issue) | | and Bolivia. 18 Section E. The sierras of the District of Buenos Aires. Section F. The southern pre-cordilleran...by Professor Walther7 on the Borings for Coal in Cerro Largo, Uruguay, and one by Senor E. T. Arocena8...Marechal Mallet, Rio Claro, Porto Uniao, and Rio Negro to Curityba enabled the Devonian as well as the...reported therefrom by Guillemain, while Melo, Paso del Cerro, Santa Rosa, and Sauce were also visited. In Buenos...Barreal, and across the Andes to Val¬ paraiso in Chile and back to Buenos Aires; this enabled the various |  | | Journal (issue) | | Articles Famous mineral localities: The Bristol copper mine, Connecticut......................................in the U.S.A. notesfrom th r EDITORS OLD YUMA MINE Another great mineral locality has now been closed...longfamous Old Yuma mine near Tucson (see R. L. Jones, “Famous mineral localities: the Old Yuma mine,” in vol....owned by Richard Bideaux’s Arizona Exploring and Mining Company for quite a few years. Bideaux and Wayne...period of activity, access to the mine was cut off in 1984. In 1996 the mine area was absorbed into the Saguaro |
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