 | CarriĂłn-Mero, PaĂșl, Herrera-NarvĂĄez, Geanella, Herrera-Franco, Gricelda, SĂĄnchez-Zambrano, Emily, Mata-PerellĂł, Josep, Berrezueta, Edgar (2021) Assessment and Promotion of Geotouristic and Geomining Routes as a Basis for Local Development: A Case Study. Minerals, 11 (4) 351 doi:10.3390/min11040351 | Journal (article/letter/editorial) | | Km. 30.5 VĂa Perimetral, 09-01-5863 Guayaquil, Ecuador; emnisanc@espol.edu.ec Facultad de IngenierĂa Ciencias...Km 30.5 VĂa Perimetral, 09-01-5863 Guayaquil, Ecuador Facultad de Ciencias de la IngenierĂa, Universidad...Principal La LibertadâSanta Elena, 240204 La Libertad, Ecuador; grisherrera@upse.edu.ec Departamento de IngenierĂa...on the existing routes of the Zaruma-Portovelo region (Ecuador), together with a global assessment of... structures and other elements. Currently, in Ecuador, there is no legal recognition for a declaration |  | Turner-CarriĂłn, Magner, CarriĂłn-Mero, PaĂșl, Turner-Salamea, Israel, Morante-Carballo, Fernando, Aguilar-Aguilar, Maribel, Zambrano-Ruiz, Kerly, Berrezueta, Edgar (2021) A Mineralogical Museum as a Geotourism Attraction: A Case Study. Minerals, 11 (6) 582 doi:10.3390/min11060582 | Journal (article/letter/editorial) | | 2021 Museo MineralĂłgico Magner Turner, Portovelo 071150, Ecuador; magnerturnersavage@yahoo.com (M.T.-C...Galindo Km 30.5 VĂa Perimetral, Guayaquil 9015863, Ecuador Facultad de IngenierĂa en Ciencias de la Tierra...Galindo Km 30.5 VĂa Perimetral, Guayaquil 9015863, Ecuador Facultad de Ciencias Naturales y MatemĂĄticas, Geo-recursos...Guayaquil 9015863, Ecuador; fmorante@espol.edu.ec Independent Consultor, Zaruma 071350, Ecuador; kgzambra@espol...Abstract: The Zaruma-Portovelo mining district in Ecuador, and in particular, Portovelo City, is home to |  | SchĂŒtte, Philip, Chiaradia, Massimo, Barra, Fernando, VillagĂłmez, Diego, Beate, Bernardo (2012) Metallogenic features of Miocene porphyry Cu and porphyry-related mineral deposits in Ecuador revealed by Re-Os, 40Ar/39Ar, and U-Pb geochronology. Mineralium Deposita, 47 (4) 383-410 doi:10.1007/s00126-011-0378-z | Journal (article/letter/editorial) | | porphyry Cu and porphyry-related mineral deposits in Ecuador revealed by Re-Os, 40Ar/39Ar, and U-Pb geochronology...mineral deposits in southern, central, and northern Ecuador were dated by means of molybdenite Re-Os, biotite...rocks of a similar age, porphyry Cu deposits in Ecuador are frequently spatially associated with deeper-seated...B. Beate Escuela Politecnica Nacional, Quito, Ecuador e-mail: bbeate@uio.satnet.net Present Address:...majority of Miocene deposits occurs in southern Ecuador where areally extensive, post-mineralization (late |  | Van Thournout, F., Salemink, J., Valenzuela, G., Merlyn, M., Boven, A., Muchez, P. (1996) Portovelo: a volcanic-hosted epithermal vein-system in Ecuador, South America. Mineralium Deposita, 31 (4) 269-276 doi:10.1007/bf02280791 | Journal (article/letter/editorial) | | Springer-Verlag 1996 Portovelo: a volcanic-hosted epithermal vein-system in Ecuador, South America F. Van... Quito, Ecuador '~Belgian TechnicalAssistance,c/o BelgianEmbassy,Casilla 532, Quito, Ecuador s Vrije...November 1995 Abstract. The Portovelo epithermal vein-system in southwestern Ecuador has produced more than...with magmatic water. The Portovelo deposit is located in southwest Ecuador (Fig. 1), about 100km from...The only published geological descriptions of Portovelo are by Billingsley (1926) and Van Thournout et |  | Wang, Rongchao, Liu, Zhankun, Hollings, Pete, Zhou, Xin, Guo, Yongchao, Li, Bin, Yu, Miao, Yang, Bin, Mao, Xiancheng, Lai, Jianqing (2021) Fluid evolution of the Humedo porphyry-related gold deposit, southern Ecuador: Evidence from the boron isotope and chemical variations of tourmaline. Ore Geology Reviews, 128. 103894pp. doi:10.1016/j.oregeorev.2020.103894 | Journal (article/letter/editorial) | | Humedo porphyry-related gold deposit, southern Ecuador: Evidence from the boron isotope and chemical variations...Humedo porphyry-related gold deposit, southern Ecuador: Evidence from the boron isotope and chemical variations...porphyry 4 rocks in the CangrejosâZaruma district, Ecuador, northern Andes. The Humedo deposit, 5 with a...porphyryâepithermal system; 30 Humedo gold deposit; Ecuador 2 31 1. Introduction 32 Porphyry systems...Andes is the largest gold producing 46 region in Ecuador and hosts several porphyry Cu-Au and epithermal |  | | Journal (article/letter/editorial) | | depositsand metalliferousindicationsof the Republicof Ecuador. The principal classesof metallic mineral depositsare:...assemblages; letter positionis usedto identify positsof Ecuador (Wolf, 1892; Stoll, 1962; Goos- the principal minerals...program in are smaller inserts of Ecuador showingthe tectonic Ecuador, and one of the outcomesof this work...Figure 1, map of Ecuador,is an adaptationof lished1:500,000geological map of Ecuador(Goos- a metallogenic...metallogenic the minerals index map of Ecuador (Goossens, sensand Pico, 1969). On this map,metallicmineral occurrences |  | | Report (issue) | | 11 The metamorphic belts of Ecuador The metamorphic belts of Ecuador CQVer photograph Cerro Hermoso... OVERSEAS MEMOIR 11 The metamorphic belts of Ecuador M Litherland,] A Aspden and RAJemielita Keyworth...andjf.MIEl,ITA, RA. )994. The metamorphic belts of Ecuador. Overseas Memofr of the British Geologi-cal Survey...7 Andean metallogenesis 9 Metamorphic rocks of Ecuador l0 Stratigraphical nomenclature 10 Metamorphic...and skarns 33 Alao terrane 36 Alao-Paute unit 36 El Pan unit 38 Maguazo unit 39 Guamote terrane âą 41 |  | Berrezueta, Edgar, Ordóñez-Casado, Berta, Bonilla, Wilson, Banda, Richard, Castroviejo, Ricardo, CarriĂłn, Paul, Puglla, Stalin (2016) Ore Petrography Using Optical Image Analysis: Application to Zaruma-Portovelo Deposit (Ecuador) Geosciences, 6 (2) 30 doi:10.3390/geosciences6020030 | Journal (article/letter/editorial) | | Image Analysis: Application to Zaruma-Portovelo Deposit (Ecuador) Edgar Berrezueta 1, *, Berta Ordóñez-Casado...Consultor-Auditor Minero Freelance, Piñas 070401, Ecuador; wilsonbonilla2@yahoo.com.ar Universidad de Guayaquil...s/n y Av. Juan Tanca Marengo, Guayaquil 090612, Ecuador; richyband@hotmail.com Universidad PolitĂ©cnica...Guayaquil 090903, Ecuador; pcarrion@espol.edu.ec CompañĂa Minera PL S.A., Zaruma 070301,Ecuador; sipuglla1993@gmail...sections from Zaruma-Portovelo intermediate sulfidation epithermal deposit (Ecuador) using multispectral |  | | Journal (article/letter/editorial) | | Mnogovershinnoe, Russia Porgera, Papua New Guinea PortoveloZaruma, Ecuador Pueblo Viejo, Dominican Republic Sergeevskoe...Armenia; and the PortoveloZaruma goldâsilver deposit in the South American Cordillera, Ecuador (Fig. 3). Most...VPB (Dukat, Ser geevskoe, Mnogovershinnoe, and PortoveloZaru ma); and islandarc VPB (Pueblo Viejo, Ladolam...Mnogovershinnoe, Pueblo Viejo, Ladolam, Zod, Porgera, and PortoveloZaruma); in addition, there are deposits of combined...Kochbulak, Sergeevskoe, Mnogovershin noe, and Portovelo Zaruma), and silver types (Kani mansur and Dukat) |  | | Journal (article/letter/editorial) | | arc magmatism and associated mineralization in Ecuador Received: 28 January 2003 / Accepted: 31 August...Abstract Most of the economic ore deposits of Ecuador are porphyry-Cu and epithermal style gold deposits...signatures, of continental arc magmatic rocks of Ecuador of Eocene to Late Miocene (50â9 Ma, ELM) and Late...Escuela PoliteÌcnica Nacional, AP 17â01â2759, Quito, Ecuador Present address: M. Chiaradia Centre for Geochemical...geochemical signatures of Tertiary magmatic rocks of Ecuador from the ELM- to the LMR-type coincides chronologically |  | Williams, T.Martin, Dunkley, Peter N, Cruz, Edgar, Acitimbay, Victor, Gaibor, Alina, Lopez, Edgar, Baez, Napoleon, Aspden, John A (2000) Regional geochemical reconnaissance of the Cordillera Occidental of Ecuador: economic and environmental applications. Applied Geochemistry, 15 (4) 531-550 doi:10.1016/s0883-2927(99)00059-1 | Journal (article/letter/editorial) | | reconnaissance of the Cordillera Occidental of Ecuador: economic and environmental applications T. Martin...GeoloĂgico, Minero, MetaluĂrgica (CODIGEM), Quito, Ecuador b Received 10 November 1998; accepted 24 May...reconnaissance survey of the Cordillera Occidental of Ecuador was initiated in 1995 as a sub-component of a wider...Control Technical Assistance Project (PRODEMINCA) in Ecuador. The 36,000 km2 survey area encompasses oceanic...Cordillera Occidental (Western Cordillera) of Ecuador was initiated in 1995 as a sub-component of a national |  | Baksheev, I. A., Plotinskaya, O. Yu., Yapaskurt, V. O., Vigasina, M. F., Bryzgalov, I. A., Groznova, E. O., Marushchenko, L. I. (2012) Tourmaline from deposits of the Birgilâda-Tomino ore cluster, South Urals. Geology of Ore Deposits, 54 (6) 458-473 doi:10.1134/s1075701512060037 | Journal (article/letter/editorial) | | Canada; Kafan, Armenia; Aktogai, Kazakhstan; and El Teniente, Chile. Tour Corresponding author: I.A...where this relationship is not evident (PortoveloZaruma, Ecuador; Comstock, the United States; Fresnillo...accompanied by mag netiteâhematite, pyriteâchalcopyrite, and pyrite veinlets and impregnations develop...later ankeriteâbasemetal assemblage consists of chalcopyrite, fahlores, galena, sphalerite, tellurides of...propylitized porphyry cut by chloriteâpyriteâchalcopyriteâquartz veinlet and cemented with quartzâchlorite |  | Mulshaw, Sean C., Puig, Carlos, Spiro, Baruch, Buchanan, Dennis L. (1997) Genesis of epizonal Ag vein mineralization at San Bartolome in central Ecuador; textural evidence, fluid inclusions, and stable isotope geochemistry. Economic Geology, 92 (2) 210-227 doi:10.2113/gsecongeo.92.2.210 | Journal (article/letter/editorial) | | SW72BP CARLOS PUIG, * Armenonic delEcuador,Ouito,Ecuador BARUCH SPIRO, NaturalErwironment Research Cou...mineralization at SanBartolom&in the easternAndesof Ecuador,is one of a seriesof mineraloccurrences whichmakesup...ing catalogof prospective mineraloccurrences in Ecuador, 1900;Herrerraand it wasGoossens (1969and1972)...summaryof Ecuadorianmetallogeny. The accompanying in Ecuador (Mulshaw and Puig, 1994). metallogenic mapwassubsequently...town and the Oeashuieo sector, farther to the Ecuador. 0361-0128/97/1913/210-1956.00 210 E?IZONAL |  | MartĂnez, JuliĂĄn, Mendoza, Rosendo, Rey, Javier, Sandoval, SenĂ©n, Hidalgo, M. Carmen (2021) Characterization of Tailings Dams by Electrical Geophysical Methods (ERT, IP): Federico Mine (La Carolina, Southeastern Spain) Minerals, 11 (2) 145 doi:10.3390/min11020145 | Journal (article/letter/editorial) | | treating pyrrhotite [22]. In the Zaruma-Portovelo region (Ecuador), ERT has been applied to study the proposed...that mainly consists of sulfides with galena, chalcopyrite, sphalerite, and pyrite predominating, accompanied...Contreras, F.; Dueñas, J. La MinerĂa y la Metalurgia en el Alto Guadalquivir: Desde sus OrĂgenes Hasta Nuestros...artisanal and small-scale gold mining in Zaruma-Portovelo, Ecuador. J. Appl. Geophys. 2015, 113, 103â113. [CrossRef] |  | | Journal (article/letter/editorial) | | Alteration Pattern of Chaucha Porphyry Copper, Ecuador P. J. GOOSSENS Houghton, Michigan 49931, U.S.A...mineralization was discovered by the U.N. at Chaucha, Ecuador (see MULLER-KA~LE1972), as a result of a geochemical...Please see Fig. 1 and the Mineral Index Map of Ecuador (GoossENS 1969a) for the general setting of the...COLOMBIA (~'",._.... 0 (" ~'\ âąOuito c~ "-~ ] ECUADOR ".. r---~. /-PERU 'J 0 I ""~ 250 500km I I...Reconnaissance map of the region around Chaucha, Ecuador (modified after GOOSSENS and PlCo 1969). The coastal |  | Alfonso, Pura, Anticoi, Hernan, Yubero, Teresa, Bascompta, Marc, Henao, Laura, Garcia-Valles, Maite, Palacios, Silvia, Yåñez, Juan (2019) The Importance of Mineralogical Knowledge in the Sustainability of Artisanal Gold Mining: A Mid-South Peru Case. Minerals, 9 (6) 345 doi:10.3390/min9060345 | Journal (article/letter/editorial) | | deposits are the Calpa, Ishihuinca, Ocoña, Sol de Oro, Los Incas and San Juan de Churunga [41]. ChĂĄparra...pyrite being the most abundant, followed by chalcopyrite. Other sulfides in significant amounts are sphalerite...inclusions of other sulfides, manly galena and chalcopyrite, can be present. Microprobe analyses of pyrite...pyrite with inclusions of native gold and chalcopyrite; chalcopyrite crystals are being replaced by covellite...Electrum in a pyrite fracture. Py, pyrite; Cp, chalcopyrite; Cov, covellite; Sp, sphalerite. Table 2. Microprobe |  | Salas, Santiago D., GonzĂĄlez, Yris, Cango, Pamela, GĂłmez, Jean Carlos, Koepke, Ronald, Peña-Carpio, Elizabeth (2021) Simulation-Based Analysis of Hydrometallurgical Processes. Case Study: Small-Scale Gold Mining in Ecuador. Minerals, 11 (5) 534 doi:10.3390/min11050534 | Journal (article/letter/editorial) | | Processes. Case Study: Small-Scale Gold Mining in Ecuador Santiago D. Salas 1, * , Yris GonzĂĄlez 1 , Pamela...Processes. Case Study: Small-Scale Gold Mining in Ecuador. Minerals 2021, 11, 534. https://doi.org/ Escuela...VĂa Perimetral, Guayaquil P.O. Box 09-01-5863, Ecuador; ykgonzal@espol.edu.ec (Y.G.); pcango@espol.edu...VĂa Perimetral, Guayaquil P.O. Box 09-01-5863, Ecuador; gepena@espol.edu.ec Correspondence: sdsalas@espol...mining case study located at Ponce Enriquez, Azuay, Ecuador. The hydrometallurgical systems consider the use |  | Chiaradia, Massimo, Vallance, Jean, FontbotĂ©, Lluis, Stein, Holly, Schaltegger, Urs, Coder, Joshua, Richards, Jeremy, Villeneuve, Mike, Gendall, Ian (2009) UâPb, ReâOs, and 40Ar/39Ar geochronology of the Nambija Au-skarn and Pangui porphyry Cu deposits, Ecuador: implications for the Jurassic metallogenic belt of the Northern Andes. Mineralium Deposita, 44 (4) 371-387 doi:10.1007/s00126-008-0210-6 | Journal (article/letter/editorial) | | Nambija Au-skarn and Pangui porphyry Cu deposits, Ecuador: implications for the Jurassic metallogenic belt...southeastern Ecuador. Nambija has been one of the main gold-producing centers of Ecuador since the 1980s...geology of the Subandean zone in southeastern Ecuador is dominated by the I-type, subduction-related...starts in Colombia at 3° N, extends down to 5° S in Ecuador. It also adds a new mineralization style (Au-skarn)...Keywords UâPb . ReâOs . ArâAr . Geochronology . Ecuador . Nambija . Pangui . Skarn . Porphyry Cu . Gold |  | Vallance, Jean, FontbotĂ©, LluĂs, Chiaradia, Massimo, Markowski, AgnĂšs, Schmidt, Susanne, Vennemann, Torsten (2009) Magmatic-dominated fluid evolution in the Jurassic Nambija gold skarn deposits (southeastern Ecuador) Mineralium Deposita, 44 (4) 389-413 doi:10.1007/s00126-009-0238-2 | Journal (article/letter/editorial) | | Jurassic Nambija gold skarn deposits (southeastern Ecuador) Jean Vallance & LluĂs FontbotĂ© & Massimo Chiaradia...Piuntza unit in the sub-Andean zone of southeastern Ecuador. The skarns consist dominantly of granditic garnet...fluids . Oxygen isotope . Chlorite . Nambija . Ecuador Introduction Skarns are an important source of...district is one of the main gold producers of Ecuador (see Chiaradia et al. 2009) and is economically...located in the sub-Andean zone of southeastern Ecuador, 40 km west of the Peruvian border (Fig. 1). The |  | | Journal (article/letter/editorial) | | in this paragenesis are galena, sphalerite, chalcopyrite, and pyrite, with quartz, ankerite, and calcite...Reconstructing the formation of a costal aquifer in Nampula province, Mozambique, from ERT and IP methods for water...artisanal and small-scale gold mining in Zaruma-Portovelo, Ecuador. J. Appl. Geophys. 2015, 113, 103â113. [CrossRef] |  | | Journal (article/letter/editorial) | | conducted in North Sulawesi (Indonesia) and Portovelo (Ecuador), whereby high Au extractions of 93.6% (mill...Indonesia and 94% (d80 = 150 ”m, 5 g/L NaCN) in Ecuador. The overall dissolution reaction is given in Equation...copper and iron such as pyrite, arsenopyrite, and chalcopyrite, which have been shown to be present in these |  | | Journal (issue) | | Thermal waters USA IDRIS Apartment 18, 61 Gesr El Suez Roxy-Heliopolis, Cairo, Egypt Mining Geology...potential is tenorite, followed by cuprite and chalcopyrite at decreasing redox potential. Tenorite and...nations, was extended to Argentina, Brazil and Ecuador. This paper summarizes the results of these studies...Malaysia, Thailand, the Philippines, Brazil and Ecuador) are humid tropical, those in Zimbabwe experience...Enriquez Adit Mesothermal lodes Nambija Adit Portovelo Adit Skarn and post-skarn epithermal (Au) Passagem |  | | Journal (issue) | | Central Provinces respectively ; in the Eastern Province, instead of one large plantation, smaller ones...at two centres, viz. Appolonia in the Western Province of the Colony, and Northern Ashanti. The rice...the mean height above sea-level of the Buganda Province, where most of the rubber is grovvn, is just under...deposit, together with some smaller ones in the same province, produces about 90 per cent. of China's total...mining and smelting are used, Kochui in Yunnan province has produced annually between 7,000 âą and 8,000 |  | | Journal (volume) | | horse are directed more strongly outward than in EL. laurentius. The fossettes of the latter are markedly...collected along the Rio Culebra above Santa Isabel, Province of Col6Ă©n, Panama, near sea level, Aug. 10, 1911...collected along the Rio Culebra above Santa Isabel, Province of Col6n, Panama, near sea level, Aug. 10, 1911...Herbarium, no. 678998, collected along the Rio Fat6, Province of ColĂ©n, Panama, near sea level, July, 1911,...not reported previously north of the Andes of Ecuador. Specimens were collected by Prof. Juvenal Valerio |  | | Report (volume) | | oe sme ene ae 229 Reon ee 249 tone) 259 eee tae el fire toate eysvcstrinsiaspenesiarenoc Low-Sulfidation...However, later Eger became the seat of a new Turkish province (vilayet), and many moslems settled here. From...exploration successes since the late 1970s, e.g., El Indio (Chile), Hishikari (Japan), Ladolam (Papua...electrum, gold, chalcopyrite, sphalerite, galena (arsenopyrite) Pyrite, enargite, chalcopyrite, tennantite...a common constituent of eruptions, for example at El ChichĂ©n, Mexico, and Mount Pinatubo. Exploration |
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Mining concession Barbasco 1A, Portovelo, Portovelo Canton, El Oro Province, Ecuador