Structural geology is the study of the geometry, kinematics, and dynamics of rock structures. Tectonics deals with the structural composition of the Earth’s crust. Crustal plates are displaced by tectonic processes and rock sequences folded, sheared and pushed on top of each other. The primary goal of structural geology is to uncover information about the history of deformation (strain) in the rocks using measurements of present day rock geometries, and ultimately, to understand the stress field that resulted in the observed strain and geometries.