ERS103H5 Lecture Notes - Lecture 5: Reduced Properties, Coccolith, Rudists
Document Summary
The processes that break up and corrode solid rock, eventually transforming it into sediment. Weathering produces sediment which is the accumulation of loose mineral grains that are not cemented together. Chemical reactions that change a rock into individual particles. The grinding away and removal of earth"s surface materials by moving. Sediments form a blanket that covers the earth. Soilis the uppermost veneer, which have interacted with rain and organic matter. Bedrock is the foundation upon which sediment rests. Surface area plays a major role in weathering. Chemical and physical processes must interact with rock surfaces to effect them. As such weathering act fasters, and has a greater impact upon rocks with a higher surface area. Physical activity that breaks consolidated rocks into clasts (sediment grains of any size). Pressure and temperature increase with depth (geothermal gradient) With the erosion of overburden, deeper rocks are exposed, pressure is reduced, and temperatures cool.
