2 The Different Types of Weathering The MAIN causes of erosion are; Erosion occurs when rock is washed, blown, or carried awayWeathering occurs when rock is broken down but stays in one place.The MAIN causes of erosion are;Running waterWindWavesGlaciers
3 Grand Canyon: Rock layers formed and then were worn away by running water.
4 In this picture the running water eroded rock, forming a canyon.
5 The ground has been washed away by water. That is erosion.
6 The water is creating erosion The water is creating erosion. The water is breaking up the soil and carrying it away. What did the power of running water create in this picture?
7 Water erosion has taken this soil away and created gullies.
9 These rocks have been blasted by wind and sand causing them to become rounded. WIND ABRASION
10 Over great time, weathering from wind and running water caused these formations.
11 Arches National Park was created when softer rocks weathered due to wind and rain and tough rocks on top were left behind forming huge arches and pillars. The sediment or rock bits we carried away leaving the empty space.
12 Wave Action ; when waves hit the rocks and pieces of rock break off Wave Action ; when waves hit the rocks and pieces of rock break off. This is what causes shorelines to erode and creates beaches.
13 Weathering from waves and tides made this arch. Can you make a hypothesis about what this coastline looked like millions of years ago? Can you predict what this coastline will look like in the future? Why?
14 Weathering cause by tides and waves on the coast line.
15 ErosionThe first five pictures of this presentation are of the same rock, just in different time periods. Pay attention to the dates on the side of the pictures and see what the water did to this rock.1890