GEOL 1001 Chapter : Running Water
Document Summary
The hydrologic cycle is a summary of the circulation of earth"s water supply. Processes involved in the hydrologic cycle are: precipitation, evaporation, infiltration, runoff, transpiration. Begins as sheet flow: infiltration capacity is controlled by, type of rock, soil cover, vegetation, fracture of the rock, sheet flow develops into tiny channels called rills, rills combine to form gullies when then combine to form streams. Drainage networks: land area that contributes water to the stream is the drainage basin. Deposition by a decrease in velocity: caused by a decrease in velocity, competence is reduced, sediment begins to drop out of the load, stream sediments, generally well sorted, stream sediments are known as alluvium. A base level is the lowest point to which a stream can erode. Two general types of base levels : ultimate (sea level, local or temporary. Pattern of the interconnected network of streams in an area.
