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Central Andean mantle and crustal seismicity beneath the Southern Puna plateau and the northern margin of the Chilean-Pampean flat slab.
(American Geophysical Union, 2014-08)
Earthquake hypocenters recorded in the Andean Southern Puna seismic array (25–28°S, 70–65°W) provide new constraints on the shape of the subducting Nazca plate beneath the Puna plateau, the transition into the Chilean-Pampean ...
Crustal and upper mantle shear wave velocity structure and radial anisotropy beneath the Colombian Andes inferred from ambient noise and surface wave tomography
(BrasilUFRNPROGRAMA DE PÓS-GRADUAÇÃO EM GEODINÂMICA E GEOFÍSICA, 2018-08-29)
The objective of this work is to investigate how subduction-related processes in NW
South America deform and alter the composition of the overriding plate, as well as the
relationship between crustal fluids and active/inactive ...
Nuevas determinaciones de velocidades de ondas P y ondas S para la corteza sísmica del terreno Cuyania en el retroarco andino
(Universidad Nacional Autónoma de México. Centro de Geociencias, 2016-04)
En este trabajo se obtiene un modelo cortical (1D) de velocidades sísmicas de ondas P y ondas S (de manera independiente) para la región comprendida entre 30°–32.5° S y 67°–68.5° O del retroarco andino, a unos 450 km al ...
Flat-slab subduction and crustal models for the seismically active Sierras Pampeanas region of Argentina
(Geological Society of America, 2009)
The Sierras Pampeanas in the west-central part of Argentina are a modern analog for Laramide uplifts in the western United States. In this region, the Nazca plate is subducting beneath South America almost horizontally at ...
Geometría de subducción de la placa de Nazca bajo el noroeste de Suramérica, a partir del análisis de microsismicidad reciente
(Bogotá - Ciencias - Maestría en Ciencias - GeofísicaDepartamento de GeocienciasUniversidad Nacional de Colombia - Sede Bogotá, 2020)
The subduction geometry of the Nazca plate beneath the northern termination of the Andes is complex, particularly under the Choco basin. Based on the spatial distribution of hypocenters and the interpretation of focal ...
On the structure of the lower crust to mantle transition beneath an accretionary inherited Andean margin, northwestern Andes
(Universidad Nacional de ColombiaMedellín - Minas - Doctorado en Ingeniería - Ciencia y Tecnología de MaterialesDepartamento de Materiales y MineralesFacultad de MinasMedellínUniversidad Nacional de Colombia - Sede Medellín, 2022-08-24)
The crust-mantle transition beneath the northwestern Andes is expected to be complex given its accretionary tectonic history. Considering that research on this matter remains scarce, especially in the Colombian region, ...
Análisis neotectónico en la cuenca Guajira offshore sector Tayrona a partir de información sísmica
(Universidad Nacional de ColombiaBogotá - Ciencias - Maestría en Ciencias - GeofísicaDepartamento de GeocienciasFacultad de CienciasBogotá, ColombiaUniversidad Nacional de Colombia - Sede Bogotá, 2020)
Neotectonics activity is revealed by taking advantage on 3D marine seismic data in depth acquired in the Guajira Offshore basin, Tayrona area in the Colombian Caribbean Sea. The existence of vertical migration structures ...
New insights from satellite gravimetry and thermal modelling on the oceanic lithospheric structure: the Caribbean plate as a case study
(Universidad Nacional de ColombiaMedellín - Minas - Doctorado en Ingeniería - Recursos HidráulicosDepartamento de Geociencias y Medo AmbienteFacultad de MinasMedellín, ColombiaUniversidad Nacional de Colombia - Sede Medellín, 2020-04-27)
A refined understanding of the lithospheric configuration may greatly improve the accuracy of geohazard assessments. However, it is challenging to reach such comprehension where data coverage is limited, such as the oceanic ...
Modelamiento termo-mecánico en la zona de subducción del Caribe colombiano -área Sinú San Jacinto- a partir de la interpretación de anomalías de campos potenciales
(Bogotá - Ciencias - Doctorado en GeocienciasDepartamento de GeocienciasUniversidad Nacional de Colombia - Sede Bogotá, 2020-12-11)
Se propone una estructura térmica para la zona de subducción del Caribe colombiano, área Sinú-San Jacinto, en la esquina Noroccidental de Suramérica, bajo las hipótesis de subducción plana para la placa Caribe bajo la placa ...