Magnetic shape fabric analysis from syntectonic granites: a study based on the eigenvalue method

Abstract We investigate the shape and strength of magnetic fabrics (anisotropy susceptibility (AMS) data) various massive granitic plutons from different parts India, using eigenvalue method. The study aims to analyse eigenvalues establish their relationship with deformational attributes. It involves: (1) calculating eigenvectors corresponding fabric datasets; (2) finding a link between geometrical appearance mechanistic issues involved specific deformation scenario; (3) determining parameters foliation data distribution. statistical analysis for unimodal dataset orthorhombic symmetry class implies that plane, consisting intermediate (V 2 ) minimum 3 pole V 1 , accurately traces instantaneous stretching axis (ISA max particular material flow system under pure shear regime. Moreover, distributions similar modality, we infer rotational characteristics respect fixed coordinate cause distinct shift such planes –V ISA steady-state simple shear, where substantial amount strain is involved. However, our findings also suggest variation in modality distribution studied granitoids can directly influence relative disposition direction . conclude powerful approach, which be utilized while studying salient aspects any syntectonic body.