Examinando por Materia "GEOLOGÍA - COLOMBIA"
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Ítem Análisis de la relación estructural : geomorfológica por causa del fenómeno de diapirismo de lodo en el Caribe Colombiano : una aproximación(Universidad EAFIT, 2020) Burgos Castaño, Ana María; Duque Trujillo, José FernandoÍtem Clasificación de puntos de agua mediante análisis hidroquímico y métodos de estadística multivariada en un sistema hidrogeológico dominado por rocas ígneas plutónicas y depósitos de vertiente(Universidad EAFIT, 2022) Chavarria Arboleda, Laura; Jaramillo Uribe, MarcelaÍtem Contribución a la caracterización y valoración de la Colección Paleontológica de Ciencias de la Tierra de la Universidad EAFIT(Universidad EAFIT, 2022) Hoyos Rodríguez, Laura Carolina; Mora Rojas, LauraÍtem Criterios de prospección geológica y caracterización de arenas silíceas en Colombia con el fin de evaluar su potencial de uso para "Frac Sand"(Universidad EAFIT, 2021) Isaza Gallego, Juan Guillermo; Gómez Acosta, Alejandra; Ortega Pérez, Diana CristinaÍtem Dinámica costera durante el Mioceno tardío - Plioceno temprano al norte del Cinturón Plegado Sinú - San Jacinto, Colombia(Universidad EAFIT, 2021) Cárdenas Gómez, Claudia Patricia; Cárdenas Rozo, Andrés Leonardo; Rincón Martínez, Daniel AndrésÍtem Discurso sobre el registro Proterozoico y Permo-Triásico en los Andes de Colombia(Universidad EAFIT, 2020) Montoya Arredondo, Juan Diego; Bustamante Londoño, CamiloThe recent U-Pb ages in rocks of the Proterozoic and Permo-Triassic basement in Colombia has led to the reformulation of tectonic models in Colombia and of the distribution of tectonostratigraphic terrains. Ages obtained between 293 and 234 Ma for the units of the Central Cordillera such as; the Cajamarca Complex, the Gneises and Amphibolites of Tierradentro, the Rovira stock, the Abejorra Gneis and other bodies that make up the basement of this mountain range, show that these were formed during the formation of Pangea in the Permo- Triassic. This geochronological information has also made it possible to define that the Grenvilian rocks are located in the Guajira Peninsula, in the Sierra Nevada de Santa Marta, in the San Lucas Mountains and in the Garzón and Santander massifs. The conception of a Permo-Triassic basement of the Central Cordillera would have palaeogeographic implications and would suggest a possible redefinition of the boundary between several of the terranes proposed by different authors recently; in addition to invalidating the concept of the "Garzón-Santa Marta Granulitic belt", defined as a Proterozoic belt that would include the Central Cordillera.Ítem Distribución de Allanita en el Stock de Mariquita y su posible origen(Universidad EAFIT, 2022) Romero Muñoz, Katherin; Bustamante Londoño, CamiloÍtem Entorno natural de 17 ciudades de Colombia(Universidad EAFIT, 2007) Hermelin Arbaux, Michel; Hermelin Arbaux, MichelÍtem Estimation of potential groundwater recharge, and evaluation of the possible effects of climate change scenarios on recharge in La Tatacoa desert(Universidad EAFIT, 2023) Ballesteros Buitrago, Karen Dayana; Jaramillo Uribe, Marcela; Vergara Bechara, SantiagoÍtem Identificando las heterogeneidades en el basamento de los Andes colombianos con base en isótopos de Pb.(Universidad EAFIT, 2020) Zapata Colorado, Daniela; Bustamante Londoño, CamiloÍtem Inventariar las riquezas de la Tierra : la comisión científica nacional y la presencia de la geología alemana en Colombia (1916-1928)(Universidad EAFIT, 2019) Castro López, Pablo Antonio; Vélez Posada, Andrés FelipeÍtem Las rocas de Colombia / por Ricardo Lleras Codazzi, profesor de mineralogía y geología en la Universidad Nacional, Conservador del Museo de Historia Natural(Bogotá : Imprenta Nacional, 1928) Lleras Codazzi, Ricardo, 1869-1940Ítem 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 Middle Miocene Distributive Fluvial System : Cerbatana Conglomerate Beds (Honda Group, Tatacoa Desert, Colombia)(Universidad EAFIT, 2022) Romero Montes, Elizabeth; Cárdenas Rozo, Andrés LeonardoÍtem Notas adicionales sobre los minerales y las rocas de Colombia / por Ricardo Lleras Codazzi, conservador del Museo de Historia Natural, profesor de Minerología y Genología en la Universidad Nacional(Bogotá : Imprenta Nacional, 1929) Lleras Codazzi, Ricardo, 1869-1941Ítem Petrogenesis of the Mariquita stock : record of the final pulse of Jurassic to Early Cretaceous arc magmatism in the Northern Andes(Universidad EAFIT, 2020) Cardona Gallego, Isabel; Bustamante Londoño, CamiloÍtem Protolith and metamorphic conditions of the metapelites from the Rio Claro Region (Antioquia Departament)(Universidad EAFIT, 2021) Madrid Restrepo, Diana Carolina; Bustamante Londoño, CamiloThe Cajamarca Complex is distributed along the Central Cordillera of Colombia, its formation is attributed to a Permian subduction zone, volcanic arc magmatism, opening and closing of basins and accretion of terrenes. The 16 samples studied in this research crop out near Rio Claro in the department of Antioquia. The analyzes were made with 7 metasedimentary, 2 metabasic belonging to the Cajamarca Complex and 7 pegmatites related to the magmatism of the Antioquia Batholith. Detailed petrography of the samples was performed and did total rock geochemistry for metamorphic rocks for analysis of major and trace elements. This study focuses on discussing the tectonic environment of protolith formation based on tectonic discrimination diagrams and P-T conditions for metamorphism, based on mineralogical reactions. In the N-MORB analysis it shows an enrichment in the LILE and a depleting in the HFSE, in the same way an inverse relationship is observed of the rare earth elements (REE) normalized with the primitive mantle. The metasedimentary rocks are mainly formed by quartz, muscovite, biotite, graphite, Andalusite and as accessory minerals titanite and zircon; the metabasics are composed of epidote, actinolite, chlorite, hornblende, and plagioclase. The P-T conditions yields a pressure of 6 to 4 kbar and a temperature that did not exceed 550 ° C. This represents a metamorphic gradient of medium pressure and medium temperature indicating a passage through the green schist to epidote-amphibolite facies which is linked to a Barrovian type metamorphism. This type of regional metamorphism led toward a depth approximately of 20 km. In this work it is suggested that the formation of the sedimentary protolith is in the accretion wedge of a subduction zone, unlike the igneous protolith that would be part of the formation of the crust. oceanic; this differs from what Blanco-Quintero et al. (2014) proposes south of the Cajamarca Complex. This oceanic crust would later subduct to the paleo western margin of South America; where the metamorphic event would finally be generated.Ítem Relación entre el balance de flujos sedimentarios y la morfología actual del delta Sinú-Tinajones, Costa Caribe de Colombia(Universidad EAFIT, 2021) Restrepo Muñoz, Juan Luis; Paniagua Arroyave, Juan FelipeÍtem Reseña : sobre la geología de Colombia, y especialmente del antiguo departamento de Antioquia / conferencias dictadas por Tulio Ospina, rector y profesor de geología de la Universidad de Antioquia, seguidas de unos apéndices(Medellín : Imp. de La Organización, 1911) Ospina Vásquez, Tulio, 1857-1921; López Restrepo, Alejandro, 1876-1940