Alfred wegner is considered as the father of tectonic theory
Process by which new rock is made from old rock; rock cycle
The rock cycle is a recycling process by which igneous, metamorphic, and sedimentary rocks are produced, converted from one form to another and destroyed. The rock cycle is a continuous process that has been occurring throughout the history of the earth. The major processes of the rock cycle include sedimentation, crystallization, metamorphism and erosion.
