Examinando por Materia "MAGMATISMO"
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Ítem Análisis de las evidencias de migración del magmatismo de arco en el occidente colombiano durante el Cretácico Superior(Universidad EAFIT, 2023) Alzate Giraldo, María Fernanda; Bustamante Londoño, CamiloAlong the Western Cordillera are located rocks of oceanic affinity to the west, and rocks of continental affinity to the east, separated by the Romeral Fault System, as a product of interactions between the Caribbean, Farallon, and South American plates. These rocks present ages ranging from Upper Cretaceous to the Lower Paleogene, implying that the formation of these plutonic igneous bodies occurred simultaneously, originated from two distinct magmatic arcs. The tectonic evolution of this zone is not fully clear yet, as two geological models are proposed where there are two subduction environments of different spatial distribution, due to some authors suggest that both subductions are dipping to the east, while others suggest that one of them is dipping to the west. Rodríguez et al. (2023) propose that, through the study of crystallization ages of igneous bodies in the Western Cordillera, there was a subduction migration event during the Upper Cretaceous, and because of this, they suggest that the distribution of both subductions is towards the east. This study includes analyses that demonstrate that the conditions at this time were not favorable for the occurrence of such event.Ítem Aporte al conocimiento de la geología volcánica en las inmediaciones de la población de Río Blanco (Cauca)(Universidad EAFIT, 2011) Téllez Arjona, Laura; Toro Villegas, Gloria ElenaIn the western flank of the volcano Sotará, in the vicinity of the population of Rio Blanco, we identified eleven units of volcanic origin. While the observation Window is limited to deposits located in the middle of the volcano, western flank, characteristics petrographics and stratigraphic relationships to define at least two possible stages of evolution in the magma chamber. These steps would relate topossible processes of recharge and magmatic differentiation which are evident. Although complete information is needed to raise an evolutionary history of volcanism of volcano Sotará, here arises a hypothesis about the evolution of the study based on stratigraphic, petrographic and geochemical volcanic deposits located in the Rio Blanco area, that must be confronted with future.Ítem Características petrográficas y de alteración hidrotermal en litotipos asociados a sistemas magmático-hidrotermales tipo pórfido en los Andes y el Cratón amazónico : estudio del caso Chuscal (Colombia), Pegasus (Ecuador), Antamina (Perú), Las Tórtolas (Chile) y Provincia Mineral de Tapajós (Brasil)(Universidad EAFIT, 2021) Malagón Quiroga, Daniel Esteban; Saa Calderón, Andrés Felipe; Gómez Gutierréz, Diego Felipe; Jiménez Torres, Carlos AndrésÍtem Conformación del atlas petrográfico y de eventos magmáticos de rocas ígneas de Colombia, a partir de la colección del Laboratorio de geología de la Universidad EAFIT: una herramienta divulgativa(Universidad EAFIT, 2016) Toro Zapata, Susana; Marín Cerón, María IsabelÍtem Long-lived Jurassic magmatic arc in the Colombian Andes(Universidad EAFIT, 2021) Castro Vásquez, Juan José; Bustamante Londoño, CamiloÍtem Mecanismos focales de sismos volcanotectónicos en el volcán Galeras(Universidad EAFIT, 2020) Vergara Herrera, Mariana; Sánchez Aguilar, John Jairo; Duque Trujillo, José FernandoÍtem Variaciones en los volúmenes de magma durante el Meso-Cenozoico a partir del registro de circones detríticos en el Oriente Colombiano(Universidad EAFIT, 2021) Chica Castaño, Laura Valentina; Franco Acevedo, Lorena; Bustamante Londoño, Camilo; Duque Trujillo, José FernandoÍtem Zonificación de la infiltración potencial y líneas de flujo en el play geotérmico Sibundoy(Universidad EAFIT, 2023) López Zuluaga, Antonio; Montoya Londoño, Nicolás; Marín Cerón, María Isabel