Finite strain estimation using ‘anti-clustered’ distributions of points

Abstract

A new method for the estimation of finite strain using spatially ‘anti-clustered’ distributions of points is described. Besides having been empirically validated via simulation, it is also evaluated by means of analysing a deformed spilite containing calcitic amygdules, which have retained their originally spheroidal shape, as well as elliptical chloritic amygdales with the same ductility as the matrix in which they are embedded. There is complete agreement between the results obtained using the Rf/ø method on the chloritic amygdales, and those provided by the method now proposed when applied to the centres of the calcitic amygdules.