Search results
Results From The WOW.Com Content Network
Erosion and changes in the form of river banks may be measured by inserting metal rods into the bank and marking the position of the bank surface along the rods at different times. [23] Thermal erosion is the result of melting and weakening permafrost due to moving water. [24] It can occur both along rivers and at the coast.
Much of this erosion occurs as the weakened banks fail in large slumps. Thermal erosion also affects the Arctic coast, where wave action and near-shore temperatures combine to undercut permafrost bluffs along the shoreline and cause them to fail. Annual erosion rates along a 100-kilometre (62-mile) segment of the Beaufort Sea shoreline averaged ...
If ε≫1, surface erosion occurs. If ε≪1, bulk erosion occurs. [4] From the model above, it is clear that certain changing certain parameters can determine what kind of erosion a polymer goes through by either increasing or decreasing the rate of the degradation process or the diffusion process.
In geography, the Baer–Babinet law, sometimes called Baer's law, [1] identifies a way in which the process of formation of rivers is influenced by the rotation of the Earth. According to the hypothesis, because of the rotation of the Earth, erosion occurs mostly on the right banks of rivers in the Northern Hemisphere , and in the Southern ...
Differential erosion – Erosion that occurs at irregular or varying rates, caused by the differences in the resistance and hardness of surface materials; softer and weaker rocks are rapidly worn away, whereas harder and more resistant rocks remain to form ridges, hills, or mountains. Differential erosion, along with the tectonic setting, are ...
Just like mountains and rocks, erosion can also occur on unsealed roads due to natural and anthropogenic factors. Road surface erosion could be caused by snowfall, rainfall and wind. [3] The material and hydraulic of the road surface, road slope, traffic, construction, and maintenance could also potentially affect road surface erosion rate ...
Sheet erosion or sheet wash is the even erosion of substrate along a wide area. [1] It occurs in a wide range of settings such as coastal plains, hill slopes, floodplains, beaches, [2] savanna plains [3] and semi-arid plains. [4] Water moving fairly uniformly with a similar thickness over a surface is called sheet flow, and is the cause of ...
These processes often occur in environments of rifting, plume erosion, continental collision or where there is convective instability. [1] Convective instabilities facilitate delamination. The convection can simply peel away the lower crust or, in a different scenario, a Rayleigh–Taylor instability is created. Due to the instability in a ...