Mostrando 10 resultados de: 25
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Journal of Volcanology and Geothermal Research(6)
Bulletin of Volcanology(2)
Contributions to Mineralogy and Petrology(2)
Geochemistry, Geophysics, Geosystems(2)
Bulletin de la Societe Geologique de France(1)
A devastating Plinian eruption at Tungurahua volcano reveals formative occupation at ~1100 cal BC in central Ecuador
ArticleAbstract: Based on archaeological and radiometric constraints, previous studies have divided pre-Columbian timPalabras claves:Andes, ECUADOR, Formative culture, Plinian eruption, tephrochronology, TungurahuaAutores:D. Jaya, de Saulieu G., Gailler L., LePennec J.L., Pablo Samaniego PonceFuentes: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:googlescopusAcross-arc versus along-arc Sr-Nd-Pb isotope variations in the Ecuadorian volcanic arc
ArticleAbstract: Previous studies of the Ecuadorian arc (1°N–2°S) have revealed across-arc geochemical trends that arPalabras claves:along-arc variations, arc magmatism, ECUADOR, Northern Volcanic Zone, radiogenic isotopes, SubductionAutores:Ancellin M.A., Gannoun A., Nauret F., Pablo Samaniego Ponce, Silvana Hidalgo, Vlastelic I.Fuentes:scopusActive Tectonics and Earthquake Geology Along the Pallatanga Fault, Central Andes of Ecuador
ArticleAbstract: Based on new geological data and the analysis of a 4 m spatial resolution Digital Elevation Model (DPalabras claves:active tectonics, Andes, Earthquake, ECUADOR, Pallatanga faultAutores:Alexandra P. Alvarado, Audin L., Bablon M., Baize S., Champenois J., Espín P.A., Jomard H., LePennec J.L., Pablo Samaniego Ponce, Quidelleur X.Fuentes:googlescopusGeochronological 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:scopusGlass 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:scopusEruptive chronology of Tungurahua volcano (Ecuador) revisited based on new K-Ar ages and geomorphological reconstructions
ArticleAbstract: This study focuses on the evolution through time of Tungurahua volcano (Ecuador), and provides new iPalabras claves:ECUADOR, geochemistry, geomorphology, K-Ar dating, Tungurahua VolcanoAutores:Bablon M., Jorge Eduardo Bustillos, Lahitte P., LePennec J.L., Liorzou C., Pablo Samaniego Ponce, Quidelleur X., Silvana HidalgoFuentes: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:scopusEvolving metasomatic agent in the Northern Andean subduction zone, deduced from magma composition of the long-lived Pichincha volcanic complex (Ecuador)
ArticleAbstract: Geochemical studies of long-lived volcanic complexes are crucial for the understanding of the naturePalabras claves:Adakite, arc magmatism, ECUADOR, Isotopes, Northern Andean Volcanic Zone, PICHINCHA, Subduction, Trace elementsAutores:Bourdon E., Chazot G., Claude Robin, Cotten J., Pablo Samaniego PonceFuentes:scopusEcuador: Into the abyss thanks to the structural adjustment policies of the extended fund agreement with the IMF
ArticleAbstract: This paper analyses the scope, origins, justification, and commitments of the extended fund arrangemPalabras claves:Capital roundtripping, ECUADOR, Extended fund agreement, Fully dollarized economy, Structural adjustment policiesAutores:Katiuska King Mantilla, Pablo Samaniego PonceFuentes:scopus