Wilson cycle Download Wilson Cycle PDF From Google Drive or  PPT The Cyclical Opening and Closing of Ocean Basins No rock is accidental. No idea in geology is more profound than this; it runs from the center to the whole of geology and influences every subdiscipline of the field. Genuine understanding of the science of geology begins with one’s ability to understand and explain why no rock is accidental.        Tectonics is concerned with deformation in the earth and the forces which produce deformation. Plate tectonics is the theory that the earth’s lithosphere (outer rigid shell) is composed of several dozen “plates”, or pieces, which float on a ductile mantle,…