A5016629339- Geological and Tectonic Studies in Latin America
- Geological and Geochemical Analysis
- Geochemistry and Geologic Mapping
- earthquake and tectonic studies
- High-pressure geophysics and materials
- Geological and Geophysical Studies
Universidad Nacional de Colombia
2017-2025
Colombian Geological Survey
2017-2025
Universidad Nacional Autónoma de México
2021
The formation of oceanic plateaus in the Pacific Mesozoic has been proposed to create major environmental impacts, including global anoxic events OAE-1 Aptian (ca. 120 Ma) and OAE-2 Cenomanian–Turonian 90 Ma). However, our understanding these large volcanic systems their effects are strongly limited by difficulties accessing them characterising evolution. In particular, it remains significant determine whether experience a phase subaerial activity as this critical implications terms impacts....
Marginal basins are the result of extensional tectonics along convergent margins. These include an early stage seafloor spreading that, in some cases, is followed by tectonic inversion and deformation basin formation a new magmatic arc front. The Early Cretaceous South American Plate caused development multiple pre-Andean back-arc marginal continental margin. were inverted during onset Andean orogeny Late Cretaceous. For instance, Northern Andes, remnants this history found Central...
volcánicas básicas y el Gabro de Altamira, Cordillera Occidental (Colombia): Registro
Durante el Cretáceo Superior, margen noroccidental de Suramérica se caracterizó por presentar un ambiente tectónico complejo, representado la acreción múltiples terrenos y generación varios eventos magmáticos. La cuarzodiorita Sabanalarga Gabro Santa Fe, anteriormente descritos como una única unidad denominada “Batolito Sabanalarga”, presentaban diferencias entre sí hoy son considerados dos plutones independientes, exponiendo los magmáticos del cretáceo superior. Ambos emplazados en cortezas...
A partir de la integración información campo, con datos petrográficos, geoquímicos roca total, isotópicos y geocronológicos, se realizó comparación los diferentes segmentos que conforman el Arco Mocoa-Santa Marta (AMSM). Este arco, aflora en Valle Superior del Magdalena, Serranía San Lucas, Sierra Nevada Santa Alta Guajira, emplazó un basamento Neo-proterozoico granitoides arco Pérmico, cuales fueron posteriormente dispersados a lo largo Paleomargen Suramericana. El plutonismo AMSM...
This work presents a considerable volume of new and compiled data indicating that arc magmatism in the western paleomargin Gondwana began Carboniferous continued during Permian Early Triassic. Subsequently, reactivated Middle Jurassic due to subduction Farallon Plate under continental paleomargin. The pluton belts are distributed from edge toward interior continent same orientation as slab (west–east direction). During Carboniferous, between ca. 333 Ma 300 Ma, formed small calcic...
Nuevos datos de campo, petrografía, geoquímica y geocronología U-Pb en circón permiten redefinir el batolito Ibagué proponer nuevas unidades. El Ibagué, al norte la Falla ha sido dividido Metatonalita Anzoátegui (∼194,7 km2) Tonalita (∼278 km2). Al sur falla conserva nombre con una extensión ~3200 km2, debido a escisión los gabros Belalcázar Los Guayabos edad Carbonífera, granitos Ortega La Plata Pérmica, Cuarzomonzodiorita Páez Jurásico temprano. se componen metatonalitas, tonalitas...