erosion,weathering and air
Erosion.
erosion,weathering and air
Mass wasting includes several processes caused by gravity that move sediment downhill, such as landslides, mudslides, rockfalls, and creep. These processes are driven by the force of gravity acting on slopes and can be triggered by factors like heavy rainfall, earthquakes, or human activities.
massmovement-any one of several processes by which gravity moves sediment downhil
Mass Movement.
Sediment can be moved by several processes including erosion, transport by water or wind, deposition, and settlement. These processes occur naturally and can also be influenced by human activities, leading to changes in the landscape and ecosystems. Understanding sediment movement is important for managing coastal areas, rivers, and other environments that are affected by sediment deposition and erosion.
Yes, there are several different agents of erosion, including water, wind, ice, and gravity. Each of these agents can shape the Earth's surface by wearing down rock and soil and transporting sediment from one place to another.
One of several process that move sediment
Causes of landslidesWe know gravity is the ultimate force behind any landslide and that weathering plays a part. But what pulls the trigger to set a slide in motion?Land surfaces are held together by multiple forces. The most important of these is friction. Some soil particles, like clay, cling to each other tightly, while others, like sand, are only loosely joined. All landscapes are held together by friction between the sediment cover and the underlying bedrock, some more tightly than others. If something is introduced to disrupt the friction on an incline, a landslide slips into action. Landslides occur when gravity overcomes the force of friction.Several common causes of landslides are:Water: Perhaps the most common trigger of a landslide, water reduces the friction between the bedrock and the overlying sediment, and gravity sends the debris sliding downhill. In sand and clay soils, a small amount of water may increase stability. You've likely seen this when building a sand castle or working with clay. However, too much water causes the sediment to flow, which is why many landslides occur after rainstorms.Earthquakes: If the Earth's crust vibrates enough to disrupt the force of friction holding sediments in place on an incline, a landslide can strike.Wildfires: Plants help to stabilize the soil by holding it together like glue with their roots. When this glue is removed, the soil loosens, and gravity acts upon it much more easily. The loss of vegetation after a fire makes the razed land susceptible to slides.Volcanoes: Several characteristics of volcanoes make them a fertile starting point for especially destructive landslides. On the next page, you'll learn just how powerful these volcanic landslides can be.
Erosion is one of several key geologic processes that shape the Earth's surface. It can lead to the formation of valleys, canyons, and other landforms by wearing away rocks and moving sediment from one place to another. Erosion can also trigger other geologic events, such as landslides and soil erosion, which can have significant impacts on landscapes and ecosystems.
That's a good description of sandstone. Note that there is a wide variation in the friability of sandstone; some is quite hard while other types are as soft and crumbly as a sugar cube.
several planning processes