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Conduit processes in crystal-rich dacitic magma and implications for eruptive cycles at Guagua Pichincha volcano, Ecuador
ArticleAbstract: Abstract: Stratovolcanoes are commonly characterised by cyclic eruptive activity marked by transitioPalabras claves:Degassing, Dome-forming eruption, Effusive-explosive transition, Eruptive cycles, GUAGUA PICHINCHA, Percolation model, Plinian eruption, Textural analysisAutores:Cáceres F., Cimarelli C., Colombier M., Dingwell D.B., Heap M.J., Julien Bernard, LePennec J.L., Pablo Samaniego Ponce, Vasseur J., Wright H.M.N.Fuentes:googlescopusContrasting origin of two clay-rich debris flows at Cayambe Volcanic Complex, Ecuador
ArticleAbstract: We investigate the sedimentological and mineralogical properties of a debris flow deposit west of CaPalabras claves:Cayambe Volcanic Complex, Clay minerals, Debris flow deposit, Hydrothermal alteration, Volcanic debris avalancheAutores:Alicia Guevara, Delmelle P., Detienne M., Opfergelt S., Pablo Samaniego Ponce, Patricia A. MothesFuentes:scopusEruption type probability and eruption source parameters at Cotopaxi and Guagua Pichincha volcanoes (Ecuador) with uncertainty quantification
ArticleAbstract: Future occurrence of explosive eruptive activity at Cotopaxi and Guagua Pichincha volcanoes, EcuadorPalabras claves:Cotopaxi Volcano, Expert elicitation, Guagua pichincha volcano, uncertainty quantification, volcanic hazardAutores:Antonio Proaño, Aspinall W., Azzaoui N., Bevilacqua A., Cioni R., de’ Michieli Vitturi M., Elizabeth H. Gaunt, Eychenne J., Gouhier M., Guillin A., Julien Bernard, Marjorie Encalada, Mia Pique, Neri A., Pablo Samaniego Ponce, Pistolesi M., Roche O., Silvana Hidalgo, Silvia X. Vallejo, Tadini A., Yepes H.Fuentes:scopusEruptive parameters and dynamics of the April 2015 sub-Plinian eruptions of Calbuco volcano (southern Chile)
ArticleAbstract: We conducted geological and petrological analyses of the tephra fallout and pyroclastic density currPalabras claves:Calbuco volcano, Southern Andes, Sub-Plinian eruption, Triggering mechanismsAutores:Castruccio A., Clavero J., Droguett B., LePennec J.L., Pablo Samaniego Ponce, Roche O., Segura A.Fuentes:scopusEvolution of the late Pleistocene Mojanda-Fuya Fuya volcanic complex (Ecuador), by progressive adakitic involvement in mantle magma sources
ArticleAbstract: The Mojanda-Fuya Fuya Volcanic Complex consists of two nearby volcanoes, Mojanda and Fuya Fuya. ThePalabras claves:Adakites, Andes, arc magmatism, ECUADOR, Mantle metasomatism, Slab melting, Volcano evolutionAutores:Claude Robin, Cotten J., Eissen J.P., Hall M.L., Martin H., Pablo Samaniego PonceFuentes:scopusDynamic implications of ridges on a debris avalanche deposit at Tutupaca volcano (southern Peru)
ArticleAbstract: Catastrophic volcanic landslides can involve different parts of a volcano that can be incorporated iPalabras claves:Debris avalanche, Flank collapse, Granular fingering, Ridges, Tutupaca volcanoAutores:Bernard K., Mariño J., Pablo Samaniego Ponce, Roche O., Valderrama P., Van Wyk de Vries B.Fuentes:scopusNew radiometric and petrological constraints on the evolution of the Pichincha volcanic complex (Ecuador)
ArticleAbstract: Fieldwork, radiometric (40Ar/39Ar and 14C) ages and whole-rock geochemistry allow a reconstruction oPalabras claves:14 C geochronology, 40 39 Ar- Ar geochronology, Eruption frequency, Eruptive rate, explosive volcanism, Pichincha volcanoAutores:Claude Robin, Fornari M., LePennec J.L., Pablo Samaniego Ponce, Patricia A. Mothes, van der Plicht J.Fuentes:googlescopusLate Holocene eruptive activity at Nevado Cayambe volcano, Ecuador
ArticleAbstract: Four Late Holocene pyroclastic units composed of block and ash flows, surges, ashfalls of silicic anPalabras claves:Autores:Claude Robin, Hall M.L., Monzier M., Pablo Samaniego PonceFuentes:scopusVolcanic history reconstruction in northern Ecuador: insights for eruptive and erosion rates on the whole Ecuadorian arc
ArticleAbstract: In the northern Andes, the Ecuadorian arc presents a large number of Quaternary volcanoes, spread ovPalabras claves:ECUADOR, erosion, Eruptive rates, K-Ar dating, Volcanic arc, VolumesAutores:Bablon M., Eschbach B., LePennec J.L., Liorzou C., Pablo Samaniego Ponce, Quidelleur X., Santiago Santamaría, Silvana HidalgoFuentes:scopusPre-eruptive magmatic processes associated with the historical (218 ± 14 aBP) explosive eruption of Tutupaca volcano (southern Peru)
ArticleAbstract: Magma recharge into a differentiated reservoir is one of the main triggering mechanisms for explosivPalabras claves:Magma recharge, Self-mixing, Thermobarometry, TutupacaAutores:Liorzou C., Manrique N., Mariño J., Médard E., Pablo Samaniego Ponce, Schiavi F.Fuentes:scopus