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Two types of slab components under Ecuadorian volcanoes supported by primitive olivine-hosted melt inclusion study
ArticleAbstract: The origin of several geochemical parameters in continental arc lavas (e.g., La/Yb, Ba/Th) is controPalabras claves:Andes, Mantle metasomatism, Northern Volcanic Zone, Primitive magma, subduction zone, Trace elementAutores:Diego F. Narváez, Koga K.T., Pablo Samaniego Ponce, Ratzov G., Rose-Koga E.F., Silvana HidalgoFuentes:googlescopusResults of the CO2 diffuse degassing survey from the 2017 IAVCEI CCVG 13th volcanic gas workshop: Pululahua Dome Complex, Ecuador
ArticleAbstract: Pululahua is a potentially active andesite and dacite lava dome complex. This paper presents the resPalabras claves:CCVG workshop, CO2 diffuse degassing, CO2 sources, Diffuse degassing map, Pululahua volcano, Soil temperatureAutores:A. Ionescu, Anais Vásconez Müller, B. M. Kis, Cardellini C., Daniel Sierra, Diego F. Narváez, Francisco J. Vasconez, Lamberti M.C., Melián G.V., S. Caliro, Silva C., Silvana Hidalgo, Viveiros F.Fuentes:scopusExperimental determination of equilibrium sulfur isotope fractionation factors in the gas-silicate melt-sulfide liquid system
ArticleAbstract: Sulfur, despite its minor presence (∼ 250 µg.g<sup>−1</sup>) in the bulk silicate Earth, can exhibitPalabras claves:Basalt, FeS, Gas mixing furnace, high temperature, Isotope fractionation, One-atmosphere, SulfurAutores:Diego F. Narváez, Jabrane Labidi, Koga K.T., Prabha-Mohan S., Rose-Koga E.F.Fuentes:scopusEruptive dynamics of open-vent andesitic volcanoes retrieved from petrological and componentry analysis of recent explosive phases (2020−2022) of Sangay (Ecuador)
ArticleAbstract: Since its reawakening in 2019, Sangay volcano (Ecuador) experienced a continuous, low magnitude erupPalabras claves:Andesitic volcanism, Componentry analysis, eruptive dynamics, Open-vent volcano, Plumbing system, Sangay, ThermobarometryAutores:Devidal J.L., Diego F. Narváez, Julien Bernard, Liorzou C., Pablo Samaniego Ponce, Silvana Hidalgo, Vizuete N.Fuentes:scopusTemporal and spatial variations of CO2 diffuse volcanic degassing on Cuicocha Caldera Lake – Ecuador
ArticleAbstract: Cuicocha Caldera is the youngest eruptive center of Cotacachi-Cuicocha Volcanic Complex, located atPalabras claves:Carbon dioxide, Cotacachi Cuicocha Volcanic Complex, Crater Lake, CUICOCHA, Diffuse degassingAutores:Antonio Proaño, Daniel Sierra, Diego F. Narváez, Lamberti M.C., Marco Almeida, Silvana Hidalgo, Vigide N.Fuentes:scopusOne-atmosphere high-temperature CO-CO2-SO2 gas-mixing furnace: design, operation, and applications
ArticleAbstract: In this paper, we present a new design for a 1atm gas-mixing furnace using the gas mixture CO-CO2-SOPalabras claves:Autores:Antoine Mathieu, Diego F. Narváez, Franck Pointud, Koga K.T., Prabha-Mohan S.Fuentes:scopusConstraining magma sources using primitive olivine-hosted melt inclusions from Puñalica and Sangay volcanoes (Ecuador)
ArticleAbstract: Constraining arc magma sources at continental arc settings is a delicate task, because chemical signPalabras claves:ECUADOR, melt inclusions, Olivine, Primary magmas, subduction zone, Volatile elementsAutores:Diego F. Narváez, Koga K.T., Pablo Samaniego Ponce, Rose-Koga E.F., Silvana HidalgoFuentes:googlescopusAsh and gas discharge during open vent activity at El Reventador (Ecuador): explosion-style transitions driven by conduit capping
ArticleAbstract: Since the VEI 4 eruption of November 2002, El Reventador volcano (Ecuador) has been the site of persPalabras claves:Ash venting, ECUADOR, Open vent, Strombolian explosion, Vulcanian explosionAutores:Bani P., Battaglia J., Benbakkar M., Diego F. Narváez, Freddy Vásconez, Harris A.J.L., Moussallam Y., Silvana HidalgoFuentes:googlescopusEruption Source Parameters for forecasting ash dispersion and deposition from vulcanian eruptions at Tungurahua volcano: Insights from field data from the July 2013 eruption
ArticleAbstract: Tungurahua volcano, located in the central area of the Ecuadorian Sierra, is erupting intermittentlyPalabras claves:ESP, FALL3D, Tungurahua, Volcanic ash, Vulcanian eruptions, WRFAutores:Diego F. Narváez, Folch A., Hasselle N., Julien Bernard, LePennec J.L., René ParraFuentes:googlescopusMass budget partitioning during explosive eruptions: insights from the 2006 paroxysm of Tungurahua volcano, Ecuador
ArticleAbstract: How and how much the mass of juvenile magma is split between vent-derived tephra, PDC deposits and lPalabras claves:eruption size, eruptive budgets, intermediate andesitic explosive eruptions, mass partitioning, Tungurahua Volcano, volume-to-mass conversionAutores:Diego F. Narváez, Eychenne J., Julien Bernard, LePennec J.L.Fuentes:googlescopus