Trabajo de grado - Pregrado
Analysis and interpretation of the geophysical expression of the Grenville Orogenic Front in the Ontario Province of Canada
Fecha
2021-12Registro en:
instname:Universidad de los Andes
reponame:Repositorio Institucional Séneca
Autor
Nemocón Camacho, Santiago
Institución
Resumen
A lo largo de este estudio los principales dominios de la Provincia de Grenville canadiense: El
Cinturón Central de Gneiss, Cinturón Metasedimentario Central y la Zona Téctonica del Frente de
Grenville son descritos para analizar y correlacionar la geología local con la firma gravimétrica y
magnética de la zona.
Modelación geofísica de datos gravimétricos y magnéticos fue realizada a lo largo de tres transectos
que cruzan el Frente de Grenville en Ontario, con el objetivo de entender la geometría del contacto
tectónico entre la Provincia de Grenville y las rocas de las Provincia Superior/Sur. El estudio describe
este contacto como un cabalgamiento regional de los dominios de la Provincia de Grenville sobre los
dominios ubicados al norte del Frente de Grenville. Throughout the paper the main domains of the Canadian Grenville Province: The Central Gneiss Belt, Central Metasedimentary Belt and Grenville Front Tectonic Zone are described to analyse and correlate the local geology with the gravity and magnetic signature of this zone. The zone where the study was principally conducted was the northern part of the Grenville Province in Ontario, Canada. Geophysical modelling of gravity and magnetic data on the Grenville Front in Ontario was conducted. The objective was to determine how the different domains interact north of the Grenville Front, namely the old, predisposed rocks of the Southern/Superior provinces and the rocks formed as a result of the Grenvillian Orogeny, the Grenville Province domains. Three transects were modelled; the geomagnetic constants, the values of magnetic susceptibility, the densities and the insights provided by previous research were included. The study concluded in the three sections analysed that this contact behaves as a regional thrust of the Grenville Province domains over the domains located in the northern zone of the Grenville Front.