info:eu-repo/semantics/bachelorThesis
Aplicación del método de anisotropía de susceptibilidad magnética en neotectónica : caso de estudio Valle de Aburrá y alrededores
Fecha
2020Registro en:
551.8 J371
Autor
Jaraba Fernández, Duvan Alejandro
Ruiz Suta, Maria Paula
Institución
Resumen
Magnetic susceptibility anisotropy (ASM) is a method that allows characterizing the magnetic
factory of rocks and sediments, and this in turn serves to estimate the type of tectonic
deformation generated by a stress field. In the zone of influence of an active fault, the magnetic
factory allows to measure the tectonic deformation associated with the displacement of said
structure, in addition, if this deformation is printed in quaternary deposits, it is possible to
estimate the geometry and kinematics of these faults and contribute to the neotectonic knowledge
of a region.
This work explores the application of ASM techniques on deformed quaternary deposits that
cover active faults with the aim of providing information about the geometry and kinematics of
faults with recent displacements in the eastern and western edge of the Aburrá Valley, where
they have been reported neotectonic sites of interest.
The results obtained suggest that there is a relationship in deformation for both sides of the
Aburrá Valley due to the similarities in the maximum and minimum stresses and the anisotropy
present at each point of interest.
Finally, it is concluded that the application of ASM in sediments deformed by active faults
provides fundamental information for the calibration of the models of tectonic evolution and the
evaluation of the seismic threat in the metropolitan area of the Valle de Aburrá and its
neighboring sectors