 | | Journal (article/letter/editorial) | | 799-808 NOTES ON THE MINERAL RESOURCES OF ECUADOR W. C. STOLL INTRODUCTION The geologyof Ecuadoris...variouspetroleumcompanies that have worked in Ecuador. The metalliferous ore resources have been ...other data obtainedduring and after a visit to Ecuador in 1960 for the Organization of American states...goldandpetroleum, mininghasneverbeenof muchimportance in Ecuador. Gold was worked by the aboriginesbeforethe arrival...potashsalts or nitrate are so far unknown. In 1959 Ecuador produced18,449 Troy ouncesof gold, 162,607 Troy |  | Chiaradia, M., Tripodi, D., Fontbote, L., Reza, B. (2008) Geologic Setting, Mineralogy, and Geochemistry of the Early Tertiary Au-Rich Volcanic-Hosted Massive Sulfide Deposit of La Plata, Western Cordillera, Ecuador. Economic Geology, 103 (1) 161-183 doi:10.2113/gsecongeo.103.1.161 | Journal (article/letter/editorial) | | Volcanic-Hosted Massive Sulfide Deposit of La Plata, Western Cordillera, Ecuador M. CHIARADIA,â D. TRIPODI, L. FONTBOTĂ...MINERA S.A., Isabel La CatĂłlica No. 882 y Cordero, Quito, Ecuador Abstract La Plata is, economically,...sulfide (VHMS) deposits of the Western Cordillera of Ecuador, with preliminary estimated reserves of 840,000...the Chimbo-Toachi shear zone in the late Eocene. La Plata displays a typical VHMS vertical zonation, from...volcaniclastic rocks that are pervasively altered to a quartz-pyrite-sericite assemblage, and immediately below |  | | Journal (article/letter/editorial) | | -2 ORIGINAL PAPER Adakite-like volcanism of Ecuador: lower crust magmatic evolution and recycling Massimo...Springer-Verlag 2009 Abstract In the Northern Andes of Ecuador, a broad Quaternary volcanic arc with significant...samples from five volcanic centers (Pululagua, Pichincha, Ilalo, Chacana, Sumaco) forming a NWâSE transect...latitude and encompassing the frontal (Pululagua, Pichincha), main (Ilalo, Chacana), and Communicated by...B. Beate Escuela Politecnica Nacional, Quito, Ecuador back-arc (Sumaco) chains. All rocks display typical |  | Vallejo, Cristian, Soria, Francisco, Tornos, Fernando, Naranjo, German, Rosero, Bayardo, Salazar, Fredy, Cochrane, Ryan (2016) Geology of El Domo deposit in central Ecuador: a VMS formed on top of an accreted margin. Mineralium Deposita, 51 (3) 389-409 doi:10.1007/s00126-015-0616-x | Journal (article/letter/editorial) | | ARTICLE Geology of El Domo deposit in central Ecuador: a VMS formed on top of an accreted margin Cristian...arc rocks of the Macuchi Formation in central Ecuador. The mineralization includes massive and semi-massive...with variable proportions of chlorite, barite, quartz, anhydrite, and smectite. The footwall rhyodacite...Av. 10 de Agosto N37-232 y Villalengua, Quito, Ecuador 2 Geostrat SA, Av. RepĂșblica de El Salvador E9-10... de Los Shyris Edificio ONIX, Piso 10, Quito, Ecuador 3 Centro de Astrobiologia (CSIC-INTA), Torrejon |  | | Journal (article/letter/editorial) | | terrane, Baiyinchang in Gansu Province, China, La Plata in western Ecuador, and Cuale in the Gurrerro terrane...suites of porphyries, with one emplaced at 352 Ma (quartz-feldspar) and the other at 347 Ma (feldspar). Sulfide...deposits in Latin America: two in Mexico and one in Ecuador. The paper by Mortensen et al. (2008) provides...metalenriched La Plata deposit, western Ecuador. Their findings indicate that the La Plata deposit formed...and chemical equilibria data for the sulfides at La Plata suggest deposition from high aS2 and aO2 fluids |  | BĂ©guelin, Paul, Chiaradia, Massimo, Beate, Bernardo, Spikings, Richard (2015) The Yanaurcu volcano (Western Cordillera, Ecuador): A field, petrographic, geochemical, isotopic and geochronological study. Lithos, 218. 37-53 doi:10.1016/j.lithos.2015.01.014 | Journal (article/letter/editorial) | | The Yanaurcu volcano (Western Cordillera, Ecuador): A field, petrographic, geochemical, isotopic...Richard, The Yanaurcu volcano (Western Cordillera, Ecuador): A ïŹeld, petrographic, geochemical, isotopic and...PT The Yanaurcu volcano (Western Cordillera, Ecuador): a field, petrographic, geochemical, RI isotopic...Geology, Escuela Politecnica NaciĂłnal, Quito, Ecuador AC CE P b D 1205 Geneva, Switzerland Corresponding...its history. Most of its units have high Sr/Y and La/Yb NU signatures. We present a comprehensive study |  | | Journal (article/letter/editorial) | | variations across the Quaternary volcanic arc of Ecuador Massimo Chiaradia a,â , Jaime D. Barnes b , Sabine...Keywords: chlorine stable isotopes subduction Ecuador Andes volcanic arc a b s t r a c t Despite the...volcanic rocks from ïŹve Quaternary volcanoes of Ecuador situated on an across-arc transect encompassing...encompassing the frontal arc (Pilavo, Pululahua, Pichincha volcanoes), main arc (Chacana caldera complex) and back-arc...across the arc correlate with slab ïŹuid indices (Ba/La, Pb/Ce). The overall decrease in ÎŽ 37 Cl values away |  | | Journal (issue) | | 35 FIGURE 1 Key to the geological maps of Ecuador 2 Bibliographic rejerenre C.R. 198 1. An annotated... C. R. BRISTOW Inforn1ation on the geology of Ecuador is varied a11d scattered throughout dozens ofjournals...ofEcLtador (17, 198,452, 715 ). Several publications on Ecuador have included extensive lists of references (131...this i11formation , particularly that of coastal Ecuador, although 110 longer confidential still rests in...the coastal, a ndea11 a nd oriente regions of Ecuador. Unfortt1nately, with one exceptior1 (269) th e |  | | Journal (article/letter/editorial) | | South America; (2) a cratonic association rich in quartz that covers about 62% of the continent; and (3)...' Or, conversely, 'What paleogeographies allow quartz-rich sand to be carried far across a continent...on a continent-wide sampling of the abundance of quartz, feldspar, feldspar types, the diverse types of...eastward from the Andes north of Argentina; and (3) a quartz-rich family of modern sands associated with the...,+o~ 2::~ +,o ~f +7 ,o.. 37 ~7 I) 215 Fig. lA--D. Continent-wide maps. A Major physiographic regions |  | ApesteguĂa, SebastiĂĄn, Soto Luzuriaga, John E., Gallina, Pablo A., Granda, JosĂ© Tamay, GuamĂĄn Jaramillo, Galo A. (2020) The first dinosaur remains from the Cretaceous of Ecuador. Cretaceous Research, 108. 104345 doi:10.1016/j.cretres.2019.104345 | Journal (article/letter/editorial) | | first dinosaur remains from the Cretaceous of Ecuador SebastiĂĄn ApesteguĂa, John E. Soto Luzuriaga, Pablo...first dinosaur remains from the Cretaceous of Ecuador, Cretaceous Research, https://doi.org/10.1016/j...first dinosaur remains from the Cretaceous of Ecuador 2 3 SebastiĂĄn ApesteguĂa1, John E. Soto Luzuriaga2...San Cayetano Alto, Apartado Postal 11-01-608, Ecuador. jesoto@utpl.edu.ec; 11 jvtamay@utpl.edu.ec;...Cretaceous of the Alamor-Lancones Basin, southern Ecuador. The fossil remains were 20 found in rocks of |  | Lajoinie, M.F., Lanfranchini, M.E., Recio, C., Sial, A.N., Cingolani, C.A., BalliviĂĄn Justiniano, C.A., Etcheverry, R.O. (2019) The Lomagundi-Jatuli carbon isotopic event recorded in the marble of the Tandilia System basement, RĂo de la Plata Craton, Argentina. Precambrian Research, 326. 447-461 doi:10.1016/j.precamres.2018.03.012 | Journal (article/letter/editorial) | | marble of the Tandilia System basement, RĂo de la Plata Craton, Argentina â M.F. Lajoiniea,b, M.E. Lanfranchinia...Ciencias Naturales y Museo, Universidad Nacional de La Plata, INREMI-FCNyM-UNLP-CICBA, 64 N°3, (CP1900), Argentina...Investigaciones CientĂïŹcas de la provincia de Buenos Aires, CICBA, 526 e/10 y 11 (CP 1900), La Plata, Argentina d Universidad...GeolĂłgicas, CONICET-UNLP, Diagonal 113 N°275, La Plata, Argentina A R T I C LE I N FO A B S T R A C...Ga). In the Tandilia System (Argentina), RĂo de la Plata Craton, this event was recorded in the basement |  | PĂĄez, G.N., Ruiz, R., Guido, D.M., RĂos, F.J., Subias, I., Recio, C., Schalamuk, I.B. (2016) High-grade ore shoots at the Martha epithermal vein system, Deseado Massif, Argentina: The interplay of tectonic, hydrothermal and supergene processes in ore genesis. Ore Geology Reviews, 72. 546-561 doi:10.1016/j.oregeorev.2015.07.026 | Journal (article/letter/editorial) | | Universidad Nacional de La Plata Calle 64 esquina Calle 120, (1900) La Plata, Provincia de Buenos Aires...(31270-901) Belo Horizonte, Brazil e Depto. de Ciencias de la Tierra, Universidad de Zaragoza, EdiïŹcio de GeolĂłgicas...IsĂłtopos Estables, Facultad de Ciencias, Plaza de la Merced s/n, (E-37008) Salamanca, Spain b a r t i...of the Martha mine epithermal deposit (Deseado Massif, Patagonia, Argentina). The mine was active from...highest-grade portions of the ore-shoots found at the mine. Finally, a post-mineral supergene phase deïŹned |  | Rapela, Carlos W., Fanning, C. Mark, Casquet, Cesar, Pankhurst, Robert J., Spalletti, Luis, PoirĂ©, Daniel, Baldo, Edgardo G. (2011) The Rio de la Plata craton and the adjoining Pan-African/brasiliano terranes: Their origins and incorporation into south-west Gondwana. Gondwana Research, 20 (4) 673-690 doi:10.1016/j.gr.2011.05.001 | Journal (article/letter/editorial) | | o m / l o c a t e / g r GR Focus The Rio de la Plata craton and the adjoining Pan-African/brasiliano...Investigaciones GeolĂłgicas (CONICET-UNLP), 1900 La Plata, Argentina Research School of Earth Sciences,...reviewed with emphasis on the role of the RĂo de la Plata craton of South America in the light of new evidence...distinct continental terrane to the east (Mar del Plata terrane). The craton is bounded everywhere by transcurrent...rifting event. The data suggest that the Mar del Plata terrane rifted away from the southwestern corner |  | | Journal (article/letter/editorial) | | : V. BĂ©cu Geological Survey of Canada, 490 rue de la Couronne, Quebec City, QC G1K 9A9, Canada e-mail:...tonnages, as an open pit operation will typically mine large tonnages at lower grades, illustrating the...Similarly, the VMS deposits of the Macuchi Belt in Ecuador are particularly rich in gold (Chiaradia and FontbotĂ©...Lemoine, Quebec; Guha 1984; Guha et al. 1988; La Plata, Ecuador; Chiaradia et al. 2008; Iron King, Arizona;...Lake Camps; Caribou in the Bathurst Mining Camp; La Zarza in the Iberian Pyrite Belt; Greens Creek in |  | | Journal (article/letter/editorial) | | journal homepage: www.elsevier.com/locate/oregeorev La JoseïŹna AuâAg deposit (Patagonia, Argentina): A Jurassic...Nacional de La Plata, Instituto de Recursos Minerales (INREMI), Calle 64 y 120, B1900FWA, La Plata, Argentina...Nacional de La Plata, Instituto de Recursos Minerales (INREMI), Calle 64 y 120, B1900FWA, La Plata, Argentina...AuâAg veins Patagonia Argentina a b s t r a c t The La JoseïŹna Jurassic epithermal AuâAg deposit located...already tested by core drilling. Veins are ïŹlled by quartz, chalcedony, opal and minor adularia and barite |  | | Report (volume) | | famous mining districts, such as those at Rico and La Plata, but there is no significant mining being done.............................................. . La Plata District (May Day, Oro Fino) ...................................... Deposit Type H: Epithermal Quartz-Alunite Gold Depoists in the Tertiary Volcanic...63. 64. CONTENTS Geologic map of the Graysill mine area in the Graysill vanadium-uranium mining district...................................... 43 Map of La Plata mining district showing igneous stocks related |  | Gianni, Guido M., Navarrete, CĂ©sar, Echaurren, AndrĂ©s, DĂaz, Marianela, Butler, Kristina L., Horton, Brian K., Encinas, Alfonso, Folguera, AndrĂ©s (2020) Northward propagation of Andean genesis: Insights from Early Cretaceous synorogenic deposits in the AysĂ©n-RĂo Mayo basin. Gondwana Research, 77. 238-259 doi:10.1016/j.gr.2019.07.014 | Journal (article/letter/editorial) | | Juan, San Juan, Argentina Universidad Nacional de la Patagonia San Juan Bosco. Dpto. de GeologĂa. Comodoro...Austin, Austin, TX, USA g Departamento de Ciencias de la Tierra, Universidad de ConcepciĂłn, Casilla 160-C...volcanic calc-alkaline rocks of the Ibañez-Lago La Plata formations and the sedimentary and volcanic rocks...and our own mapping. Abbreviations are LPF: Lago La Plata-Fontana, CBA: Lago General Carrera-Buenos Aires...emplacement of the Patagonian Batholith in the Lago La Plata-Fontana fold belt (Ramos and Palma, 1983; Iannizzotto |  | PĂĄez, G.N., Ruiz, R., Guido, D.M., Jovic, S.M., Schalamuk, I.B. (2010) The effects of K-metasomatism in the BahĂa Laura Volcanic Complex, Deseado Massif, Argentina: Petrologic and metallogenic consequences. Chemical Geology, 273 (3) 300-313 doi:10.1016/j.chemgeo.2010.03.007 | Journal (article/letter/editorial) | | Universidad Nacional de La Plata, Calle 64 esquina Calle 120, (1900) La Plata, Provincia de Buenos Aires...Minerales (INREMI) Calle 64 esquina Calle 120, (1900) La Plata, Provincia de Buenos Aires, Argentina. Tel./fax:...distribution of Jurassic volcanics and locations of mine sites and areas of metallogenic interest. analyzing...Patagonia, giving rise to the Chon Aike Large Igneous Province (Pankhurst et al., 1998; Pankhurst et al., 2000)...consists of the Bajo Pobre, Cerro LeĂłn, Chon Aike and La Matilde formations. The Bajo Pobre Formation is characterized |  | | Journal (article/letter/editorial) | | crust (Eocene Macuchi arc, Western Cordillera, Ecuador) Massimo Chiaradia â Department of Mineralogy,...Accepted 8 May 2009 Editor: B. Bourdon Keywords: Ecuador Andes Western Cordillera Macuchi Rio Cala Arc magmatism...c t The basement of the Western Cordillera of Ecuador consists of a fragment of oceanic plateau crust...still nowadays in the active frontal volcanoes of Ecuador. © 2009 Elsevier B.V. All rights reserved. 1....in the Western Cordillera of Ecuador. The Western Cordillera of Ecuador consists of a basement of oceanic |  | Villamizar-Escalante, N., Bernet, M., Urueña-SuĂĄrez, C., HernĂĄndez-GonzĂĄlez, J.S., Terraza-Melo, R., Roncancio, J., Muñoz-Rocha, J.A., Peña-Urueña, M.L., Amaya, S., Piraquive, A. (2021) Thermal history of the southern Central Cordillera and its exhumation record in the Cenozoic deposits of the Upper Magdalena Valley, Colombia. Journal of South American Earth Sciences, 107. 103105pp. doi:10.1016/j.jsames.2020.103105 | Journal (article/letter/editorial) | | Alpes, CNRS, IRD, IFFSTAR, Institute des Sciences de la Terre, 38058 Grenoble Cedex 9, France 11 3 12... and accretion of the Caribbean Large Igneous Province at the western margin of South America 35 observed...reactivation of crustal structures such as the Plata-Chusma fault, as evidenced by 43 the syntectonic...48 2 by Jurassic plutonic rocks of the PĂĄez quartz-monzodiorite (Zapata et al., 2015; RodrĂguez et...Group, whose sedimentation was controlled by the Plata-Chusma fault, 67 for which an extensional Paleogene |  | | Book | | Montreal New Delhi Singapore Sydney Panama Toronto 6 La YU : Copyright O 1973 by McGraw-Hill, Inc. All...Carlos, 1898â Mining in the New World. Translation of La minerĂa en el Nuevo Mundo. âSponsored by the Spanish...English version of Licenciado Carlos Prietoâs study, La min- eria en el Nuevo Mundo. While I do not subscribe...ac . si : = 7 jap " a me MAGDA ey al 7 LA â se 4 tape =] fyethane er rs ae = fein Bre...visiting professor at the Central University of Ecuador, Quito, during 1957-1958 and at the Instituto TecnolĂłgico |  | | Journal (article/letter/editorial) | | Peru; the Home Sweet Home mine, A l m a , Colorado; and the N'Chwaning mine, Kuruman, South Africa. These...sources. Bancroft might have included Catamarca Province, Argentina, i f he were inclined toward massive...Rhodochrosite from the N'Chwaning mine, Black Rock district, Hotazel, North Cape Province, South Africa. Pala Properties...beginning with the superb finds at the John Reed mine, Alicanti, near Leadville (Kunz, 1887), rhodochrosite..."gathering" of rhodochrosite from the N'Chwaning mine, South Africa, as seen at the 1981 show. Photo by |  | | Journal (issue) | | necesita hacer para fomentar la exploraciĂłn minera en chile? TEMAS DesafĂos para la industria RestricciĂłn de...de capital para la exploraciĂłn y su impacto en la industria minera. VisiĂłn global. Sustentabilidad en...OFICIAL NACIONAL MEDIO OFICIAL INTERNACIONAL L A LA EDITORIAL TĂCNICA Y DE NEGOCIOS LĂDER DE CHILE R...Peru: Copper production begins at Antapaccay The mine will produce an average of 160,000 tons a year of...The key role of engineering companies Estimates of mine investments through 2020 suggest a busy time for |  | | Report (issue) | | Hills Chalk Mountain Westgate IXL (Cox Canyon) La Plata (Mountain Wells) Bell Mountain Talapoosa SUMMARY...the southern Stillwater Range primarily on the La Plata Canyon, Table Mountain, IXL Canyon, and Cox Canyon...the Reno sheet. This report includes prospect and mine descriptions and results of geochemical analyses...investigations of the Fairview, Wonder, Chalk Mountain, La Plata, Sand Springs, and Holy Cross mining districts...deposit for a M.S. thesis. This deposit is the newest mine under development in Nevada, and it is operated |  | | Book | | Departamento de GeodinĂĄmica Interna Universidad de la RepĂșblica Montevideo Uruguay Sebastian Oriolo GZGâStructural...strata in the lengthy stretch between the RĂo de la Plata and Pernambuco, of which some are probably of...HMâHasi-Mesaud sediments; TSâTassili sediments; C1âGroupe de la Falaise dâAtar; MSâMirnyy charnockites; JFâJinduckin...application of analytical techniques such as SHRIMP and LA-ICP-MS zircon geochronology (e.g. Siegesmund et al...evolution of the main crustal blocksâthe RĂo de la Plata, Congo and Kalahari cratonsâis summarized in the |
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