ESTUDIO DE FÁBRICA MAGNÉTICA EN MODELOS ANÁLOGOS: COMPARACIÓN ENTRE DISTINTAS MINERALOGÍAS

RENATA TOMEZZOLI; LEANDRO GALLO; ERNESTO CRISTALLINI; FEDERICO COPERNITI; JUAN MARTÍN CALVAGNO; MARÍA BELÉN FEBBO

Rancagua

Congreso; 6° Reunión Bienal de la Asociación Latinoamericana de Paleomagnetismo y Geomagnetismo (LATINMAG); 2019

Asociación Latinoamericana de Paleomagnetismo y Geomagnetismo

Anisotropy of magnetic susceptibility (AMS) is a precise method to know the magnetic fabric and allows to know the spatial location of regional efforts in deformed areas. The relationship between the ellipsoid of AMS and its coaxiality with the ellipsoid of stress and deformation is known, where the minor axis of AMS (Kmin) coincides with the direction of the main stress σ1.From the measurement of magnetic susceptibility and the interpretation of the internal magnetic fabric of analogous sand models, an approximation can be made to the knowledge of the distribution of stress in deformation zones. Here we present the results of three analogues models with different magnetic mineralogies. They were performed with the objective of evaluating the magnetic susceptibility in different positions of the model and calculate the AMSellipsoid and the relationship between the fabric obtained and the magnetic mineralogy, to compare which of the different mineralogies are the best to subsequent models.