Listar Geología por autor "ccff2fe9-d405-4886-b0d9-11d3ab1ab6de"
Mostrando ítems 1-5 de 5
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A melt-focusing zone in the lithospheric mantle preserved in the Santa Elena Ophiolite, Costa Rica
Madrigal Quesada, María Del Pilar; Gazel Dondi, Esteban; Denyer Chavarría, Percy; Smith, Ian; Jicha, Brian; Flores, Kennet E.; Coleman, Drew S.; Snow, Jonathan (2015-08-01)The Santa Elena Ophiolite in Costa Rica is composed of a well-preserved fragment of the lithospheric mantle that formed along a paleo-spreading center. Within its exposed architecture, this ophiolite records a deep section ... -
Estratigrafía y petrografía de las rocas ígneas en el sector superior de la cordillera de Talamanca, Costa Rica
Alfaro Gálvez, Aristides; Denyer Chavarría, Percy; Alvarado Induni, Guillermo E.; Gazel Dondi, Esteban; Chamorro Obregón, Carlos Andrés (2018-04-17)En la cordillera de Talamanca los productos del magmatismo se encuentran ampliamente distribuidos, y co-rresponden con episodios intrusivos y extrusivos del Neógeno y del Cuaternario. En general es posible ... -
Origin of plagiogranites in oceanic complexes: A case study of the Nicoya and Santa Elena terranes, Costa Rica
Whattam, Scott A.; Gazel Dondi, Esteban; Yi, Keewook; Denyer Chavarría, Percy (2016)The origin of minor leucocratic intrusions known as “plagiogranites” in oceanic complexes dominated by basaltic compositions have been debated in the literature. Here we use well preserved plagiogranites within the contrasting ... -
Record of massive upwellings from the Pacific large low shear velocity province
Madrigal Quesada, María Del Pilar; Gazel Dondi, Esteban; Flores Reyes, Kennet Eduardo; Bizimis, Michael; Jicha, Brian (2016)Large igneous provinces, as the surface expression of deep mantle processes, play a key role in the evolution of the planet. Here we analyse the geochemical record and timing of the Pacific Ocean Large Igneous Provinces ... -
The record of the transition from an oceanic arc to a young continent in the Talamanca Cordillera
Gazel Dondi, Esteban; Hayes, Jorden L.; Ulloa Carmiol, Andrés; Alfaro Gálvez, Aristides; Coleman, Drew S.; Carr, Michael J. (2020-07)The Talamanca Cordillera in the Central America Arc (Costa Rica‐Panama) preserves the record of the geochemical evolution from an intraoceanic arc to a juvenile continental arc in an active subduction zone, making it a ...