Mostrando 10 resultados de: 16
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Lithos(3)
Andean Tectonics(2)
Earth and Planetary Science Letters(2)
Gondwana Research(2)
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Geología, hidrología, meteorología(10)
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New constraints on the tectonic history of the basement of the Western Cordillera and coastal forearc of Ecuador
ArticleAbstract: The Western Cordillera and forearc of the Northern Andes (north of 5° S) are constructed from allochPalabras claves:Active margins, Andes, ECUADOR, geochemistry, geochronology, Isotopic tracingAutores:Antoine de Haller, Bernardo O. Beate, Chiaradia M., Cristian Vallejo, Sebastian Betancur, Spikings R.A., Stephen Forti, Ulianov A., Winkler W.Fuentes:scopusGeochemical, petrographic, and geochronologic framework for the Salado block of eastern Ecuador: implications for Andean tectonics and Amazon basin evolution
ArticleAbstract: The Cordillera Real of Ecuador includes at least five lithotectonic divisions interpreted as separatPalabras claves:Amazon basin, ECUADOR, geochemistry, geochronology, Lithostratigraphy, Northern andes, Salado blockAutores:Alfredo G. Buitron, Ana B. Gramal, Carranco-Andino F., Christian W. Romero, Cristian Vallejo, Edison D. Calderón, Esteban J.J., Horton B.K., Jackson L.J., Spikings R.A.Fuentes:scopusFertility Assessment of Tectono-Magmatic Cycles in the Tres Cerrillos Prospect (Western Cordillera of Ecuador)
ArticleAbstract: This study explores the mineralizing potential and the magmatic controls of Miocene-Pliocene magmasPalabras claves:Autores:Angelo Aguilar, Carlos Urrutia, Carolina Rodríguez, Chiaradia M., Hugo Carrasco, Hugo Narvaez, Juan Jaramillo, Kouzmanov K., Sergio Cubelli, Sergio Pichott, Spikings R.A., Ulianov A., Yorki PatiñoFuentes:scopusThe Yanaurcu volcano (Western Cordillera, Ecuador): A field, petrographic, geochemical, isotopic and geochronological study
ArticleAbstract: The Yanaurcu volcanic center in the Ecuadorian frontal arc is characterized by several epochs of actPalabras claves:Adakite, Andesite, Crustal processes, ECUADOR, Garnet fractionation, rechargeAutores:Béguelin P., Bernardo O. Beate, Chiaradia M., Spikings R.A.Fuentes:scopusThe early interaction between the Caribbean Plateau and the NW South American Plate
ArticleAbstract: The determination of accurate and precise ages for the timing of collision between oceanic plateausPalabras claves:Autores:Chew D.M., Cristian Vallejo, Luzieux L.D.A., Page L., Spikings R.A., Winkler W.Fuentes:googlescopusThe geological history of northwestern South America: From Pangaea to the early collision of the Caribbean Large Igneous Province (290-75 Ma)
ReviewAbstract: Northwestern South America preserves a record of the assembly of western Pangaea, its disassembly anPalabras claves:geochemistry, geochronology, Pangaea, South America, Tectonic reconstruction, ThermochronologyAutores:Bernardo O. Beate, Cochrane R., Cristian Vallejo, Spikings R.A., Van der Lelij R., Villagómez-Díaz D., Winkler W.Fuentes:googlescopusGeochronological, geochemical and isotopic characterisation of the Early Cretaceous Andean margin within Ecuador: The Alao Arc
ArticleAbstract: Tectonic models of the Early Cretaceous Andean margin in Ecuador are hindered by a paucity of accuraPalabras claves:Active margins, Andes, ECUADOR, geochemistry, geochronology, IsotopesAutores:Andrés Zambrano, Bernardo O. Beate, Chiaradia M., Cristian Vallejo, Hugo Carrasco, Paul Buenaño, Spikings R.A., Ulianov A.Fuentes:scopusConstraints on the ages of the crystalline basement and Palaeozoic cover exposed in the Cordillera real, Ecuador: 40Ar/39Ar analyses and detrital zircon U/Pb geochronology
ArticleAbstract: Gabbros and ultramafic rocks of the Huarguallá Gabbro unit exposed in faulted slivers along the westPalabras claves:40 39 Ar/ Ar dating, 40Ar/39Ar dating, Detrital zircon dates, Iapetus rift, Palaeozoic, PangaeaAutores:Cristian Vallejo, Paul A., Pedro S.B. Reyes, Spikings R.A.Fuentes:googlescopusGeochemical and isotopic variations in a frontal arc volcanic cluster (Chachimbiro-Pulumbura-Pilavo-Yanaurcu, Ecuador)
ArticleAbstract: Volcanic arc clusters are groups of adjacent volcanic edifices that allow the investigation of geochPalabras claves:Chachimbiro, ECUADOR, Fractional crystallization, geochemistry, recharge, Volcanic clusterAutores:Bellver-Baca M.T., Chiaradia M., Spikings R.A., Viviana ValverdeFuentes:scopusJurassic to Early Paleogene sedimentation in the Amazon region of Ecuador: Implications for the paleogeographic evolution of northwestern South America
ArticleAbstract: The retroarc Amazon region of Ecuador recorded distinct events that are preserved in the Mesozoic-CePalabras claves:Cretaceous, ECUADOR, Jurassic, Oriente Basin, paleogeography, Provenance analysisAutores:Christian Romero, Cristian Vallejo, Elizabeth Mariño, Esteban J.J., Horton B.K., Janeth Gaibor, Spikings R.A., THOMSEN T.B., Winkler W.Fuentes:scopus