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Collisional interactions and the transition between lava dome sector collapse and pyroclastic density currents at Tutupaca volcano (Southern Peru)
ArticleAbstract: We describe sedimentological variations of the block-rich debris avalanche deposits and associated pPalabras claves:Block clusters, Local kinematics, Sedimentology, Striations, Volcanic debris-avalanche depositAutores:Bernard K., Mariño J., Pablo Samaniego Ponce, Valderrama P., Van Wyk de Vries B.Fuentes:scopusArc volcano activity driven by small-scale metasomatism of the magma source
ArticleAbstract: Arc volcanism arises from the release of fluids from the descending slab, which enables melting in tPalabras claves:Autores:Auclair D., Gannoun A., Julien Bernard, Nauret F., Pablo Samaniego Ponce, Sainlot N., Silvana Hidalgo, Vlastelic I.Fuentes:scopusCrustal thickness and magma storage beneath the Ecuadorian arc
ArticleAbstract: The Northern Andes of Ecuador contain some of the most active volcanic systems in the Andes and extePalabras claves:Crustal Imaging, crustal structure, Joint inversion, SOUTH AMERICA, Volcanic structureAutores:Beck S.L., Delph J., Koch C.D., Lynner C., Mario C. Ruiz, Meltzer A., Pablo Samaniego Ponce, Patricia A. Mothes, Silvana Hidalgo, Stephen HernándezFuentes:scopusGeochronological evolution of the potentially active Iliniza Volcano (Ecuador) based on new K-Ar ages
ArticleAbstract: The youngest volcanism of the Ecuadorian Volcanic Front (Western Cordillera) is mainly dominated byPalabras claves:ECUADOR, geomorphology, Iliniza volcano, K-Ar dating, Volcanic hazardsAutores:Espín P.A., Lahitte P., LePennec J.L., Liorzou C., Marco D. Córdova, Pablo Samaniego Ponce, Quidelleur X., Santiago Santamaría, Silvana HidalgoFuentes:scopusGranular fingering as a mechanism for ridge formation in debris avalanche deposits: Laboratory experiments and implications for Tutupaca volcano, Peru
ArticleAbstract: The origin of subparallel, regularly-spaced longitudinal ridges often observed at the surface of volPalabras claves:Analogue experiments, Debris avalanche, Granular fingering, Granular flow, RidgeAutores:Araujo G., Pablo Samaniego Ponce, Roche O., Valderrama P., van Wyk des Vries B.Fuentes:scopusStructure of the plumbing system at Tungurahua volcano, Ecuador: Insights from phase equilibrium experiments on july-august 2006 eruption products
ArticleAbstract: Understanding the plumbing system structure below volcanoes and the storage conditions (temperature,Palabras claves:Adakite, Basaltic andesite, Experimental petrology, Magnesian andesite, phase equilibrium, Plumbing system, Pre-eruptive conditions, TungurahuaAutores:Andújar J., Indira Molina, Martel C., Pablo Samaniego Ponce, Pichavant M., Scaillet B.Fuentes:scopusTesting the suitability of frictional behaviour for pyroclastic flow simulation by comparison with a well-constrained eruption at tungurahua volcano (Ecuador)
ArticleAbstract: We use a well-monitored eruption of Tungurahua volcano to test the validity of the frictional behaviPalabras claves:numerical simulation, Pyroclastic flows, rheology, TungurahuaAutores:D. Barba, Kelfoun K., Pablo Samaniego Ponce, Placios P.Fuentes:scopusThe 2006-2009 activity of the Ubinas volcano (Peru): Petrology of the 2006 eruptive products and insights into genesis of andesite magmas, magma recharge and plumbing system
ArticleAbstract: Following a fumarolic episode that started six months earlier, the most recent eruptive activity ofPalabras claves:Explosive activity, Magma mixing, Magma recharge, Perú, Thermobarometry, UbinasAutores:LePennec J.L., Pablo Samaniego Ponce, Rivera M., Thouret J.C.Fuentes:scopusThe Chimborazo sector collapse and debris avalanche: Deposit characteristics as evidence of emplacement mechanisms
ArticleAbstract: Chimborazo is a Late Pleistocene to Holocene stratovolcano located at the southwest end of the mainPalabras claves:block facies, CHIMBORAZO, debris avalanche deposit, emplacement, mixed facies, structuresAutores:Alcaraz S., Claude Robin, D. Barba, Julien Bernard, Leyrit H., Pablo Samaniego Ponce, Van Wyk de Vries B.Fuentes:scopusThe genetic relationship between andesites and dacites at Tungurahua volcano, Ecuador
ArticleAbstract: Volcanic eruptions of intermediary and silica-rich magmas (andesites, dacites and rhyolites) in convPalabras claves:Autores:Ancellin M.A., Gannoun A., LePennec J.L., Nauret F., Pablo Samaniego Ponce, Schiano P., Silvana Hidalgo, Tournigand P.Y., Vlastelic I.Fuentes:scopus