GEO 101 Lecture Notes - Lecture 12: Erosion, Landform, Geomorphology
26 Jul 2020
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Document Summary
3 main processes that sculpt the landscape. A landform is typically a single geomorphological features. A landscape is a group of landfrms. The first step in how rivers shape the land. Rainfall rate> infiltration rate the water will runoff on the soil"s surface. If the exposed soil is on a slope, rain splash erosion can transfer soil. Sheet flow: runoff of a thin layer water not confined to channels. Often made up of many small flowing strands rather than a uniform sheet. Sheet erosion takes off layer by layer of soil. Typically, water will find a small channel and merge into it. May merge to form larger and longer lasting channels (gullies) Where veg has been removed, more erosion results. Amt of precipitation and vegetation on the surface that affects erosion. Rock types have very different hardness properties and resistance. Relief- the difference in elevation between locations. To understand deposition, you must understand how sediment is carried in the.
