It turns into a river because of all the water the mountains have and then creates a path. Rivers cause erosion. Runoff from rivers cause rocks to erode. Because of gravity, runoff, and the sediment it has, to move downhill. An example of this sheet erosion.
This is the wave motion that is so damaging to structures. The third general type of earthquake wave is called a surface wave, reason being is that its motion is restricted to near the ground surface. Such waves correspond to ripples of water that travel across a lake. Surface waves in earthquakes can be divided into two types. The first is called a Love wave.
This rock supports the waterfall until enough less resistant rock is carved away then this falls into the river below and might cause hydraulic action. The softer or less resistant rock is limestone which is easily carved away by water extremely fast. This means that the High Force waterfall retreats back a lot faster than other waterfalls. This map shows the rock types of Durham. The red colour shows basalt or whin sill.
Kelsey Johansen and Nathan Walker 10/24/2012 Period 8 Delta vs. Submarine Fan A delta is the product of sediment deposition at the mouth of a river which has condensed into land. River deltas form when a river carrying sediment reaches a body of standing water, such as a lake, ocean, or reservoir. When the flow enters the standing water, it is no longer confined to its channel and expands in width. This flow expansion results in a decrease in the flow velocity, which diminishes the ability of the flow to transport sediment and eventually deposits.
Where do these rocks come from? Sedimentary rocks come from the very thing they are named after; sediment. These rocks originate from weatherization and a few other processes over a long period of time. For example, if a mineral is stripped from some rocks during weatherization and are carried to a body of water, the minerals will eventually settle at the bottom of the lake and through some other processes settle down and form rocks (Murck, Skinner, & Mackenzie, 2008). Dead plants and animals, along with minerals already at the locations help to create the sedimentary rocks and their unique characteristics.
Water Velocity & Sediment Depth in Streams Introduction: Water covers over 70% of the world and is one of the most essential compounds in life. Water is continuously cycling to transport nutrients around the world. Rainfall will wash away sediment and carry it through streams, rivers, and other flowing bodies of water. Certain sections of flowing bodies of water can be classified as riffles, runs, and pools based on the velocity of the water. A riffle is a shallow, fast moving section of a stream and is usually followed by a run, where the water tends to be deeper and slower.
The trickles join up to form a small stream, thin, rocky and turbulent. This energy causes the land to be shaped into gorges, cliffs and fast rapids. The river at this stage is no more than 50cm wide. On either sides of the river are steep V-shaped valleys, cut away from the land after years of constant erosion from the flowing water. The water is on a downward gradient and is constantly supplied by the 1200mm of rainfall it gets each year.
The water behind the reservoir has destabilized some of the steep hills on the edges of the water causing landslides that can be very dangerous. (notes) Socially the TGD has done a lot of good for China like controlling floods and coming in
Wetlands especially lakes and ponds perform many vital functions which includes treatment of waste water (Kadlec, 1978), downstream flood control (Novitzki, 1979), recharge of ground water (Carter et al., 1979) retention of sediments and nutrients (Dean, 1979) and regulation of water quality (Larson, 1982), irrigation, energy production, recreation, tourism and provide habitat to wild life. They are one of the most productive ecosystems and constitute rich natural resources. In Assam, comprising both Brahmaputra and Barak Valleys, there are innumerable fresh water lakes, ox-bow lake (Anua), marshy tracts and seasonally flooded plains and hundreds of revering sand-bars, islands, temporary pools, beels and other small aquatic
Stalagmites and Stalactites The stalactites and stalagmites are rock formations found that occur in limestone caves. The rain water seeping through the rock and water that evaporates inside the cave, make the roof of the cave wet, this moisture slowly precipitated again dragging some minerals. Stalactites are formed from rainwater. Rainwater is very acidic even without the pollution in the air. When it rains, tiny raindrops are formed.