Mostrando 6 resultados de: 6
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Article(6)
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Bulletin of Volcanology(3)
Journal of Volcanology and Geothermal Research(2)
Quaternary Geochronology(1)
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:googlescopusGlass shard K-Ar dating of the Chalupas caldera major eruption: Main Pleistocene stratigraphic marker of the Ecuadorian volcanic arc
ArticleAbstract: New K-Ar ages obtained on juvenile pumice glass shards indicate that the Chalupas ignimbrite, one ofPalabras claves:Chalupas, ECUADOR, Glass shards, Ignimbrite eruption, K-Ar datingAutores:Bablon M., LePennec J.L., Liorzou C., Nouet J., Pablo Samaniego Ponce, Quidelleur X., Santiago Santamaría, Siani G., Silvana HidalgoFuentes: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:googlescopusIdentifying potentially active volcanoes in the Andes: Radiometric evidence for late Pleistocene-early Holocene eruptions at Volcán Imbabura, Ecuador
ArticleAbstract: Recent eruptions from volcanoes with no previously known historical activity in Chile and IndonesiaPalabras claves:Active volcanoes, ECUADOR, Imbabura volcano, Radiometric datingAutores:Andrés Gorki Ruiz, Eissen J.P., Fornari M., Hall M.L., LePennec J.L.Fuentes:scopusPre-eruptive physical conditions of El Reventador volcano (Ecuador) inferred from the petrology of the 2002 and 2004-05 eruptions
ArticleAbstract: A petrological study of the eruptive products of El Reventador allowed us to infer the magmatic procPalabras claves:Degassing, ECUADOR, El Reventador, magmatic episodes, Petrology, recharge, ThermobarometryAutores:Chavrit D., Claude Robin, Cotten J., Eissen J.P., Hall M.L., LePennec J.L., Pablo Samaniego Ponce, Patricia A. MothesFuentes:googlescopusPyroclastic flow erosion and bulking processes: comparing field-based vs. modeling results at Tungurahua volcano, Ecuador
ArticleAbstract: Pyroclastic density currents (PDCs) are high-temperature and high-velocity mixtures that threaten poPalabras claves:Componentry, erosion, numerical simulation, Pyroclastic density currents, TungurahuaAutores:Julien Bernard, Kelfoun K., LePennec J.L., Silvia X. VallejoFuentes:scopus