Paper: Geometria del margen chileno
El Tectonophysics 659:183–196 nos trae una sorpresa un paper sobre la geometria de la margen tectonica de la costa chilena; es una contribución de Maksymowicz, de lectura obligatoria si queremos entender un poco acerca del margen chileno. Esta publicación en base a batimetría de alta resolución y geofísica busca caracterizar la segmentación del margen y relacionarla con los procesos de deformacion asociados a rupturas sismicas en el margen chileno.
Abajo encontraran el Abstract y el perfil del Investigador en Researchgate, donde pueden observar y revisar otras publicaciones.
ABSTRACT:
Based on high-resolution bathymetry and geophysical observations, the precise continental wedge geometry along the Chilean margin is analyzed. The data show complex patterns in continental wedge geometry that challenge the most frequently used classification methodology for the convergent margin tectonics. A detailed modeling of the parameters involved in the Non-Cohesive Coulomb Wedge theory reveals a tectonic latitudinal segmentation of the Chilean offshore subduction zone. This segmentation is characterized by a sequence of broad segments with different basal effective friction coefficient and/or internal fluid pressure conditions, which are limited by the presence of bathymetric oceanic highs, fracture zones and Peninsulas. The results suggest a general increase of the fluid pressure inside the continental wedge north of 33°S, which is interpreted as a result of a more pervasive fracturing due to tectonic erosion at the base and within the continental wedge. The tectonic segmentation proposed here shows a close spatial relation with the short-term deformation process associated to the coseismic ruptures of large earthquakes in the Chilean margin.
LINK: A. Maksymowicz en Researchgate
LINK: The geometry of the Chilean continental wedge
GeoCosas 