Senin, 22 Oktober 2012

IPA


sedimentation
Sedimentation is the deposition of rock material events that have been transported by water or wind power earlier.
When erosion occurs, the water carrying rocks
flows into rivers, lakes, and finally to the sea.
At the time of transport force is reduced or discharged, rocks deposited in the stream earlier. Because of this precipitation could occur in rivers, lakes and the sea.
The precipitation that occurred in the river called fluvial sediments.
The deposition is usually a rolling stone, rock slide, sand, gravel, and mud that covered the bottom of the river. Even the river sediment is very well utilized for building or paving material. Therefore, not a few people who seek livelihood of sand, gravel, or rock sediment yield was up for sale.
In the lake sediment rocks also occur. The results are usually in the form of sediment delta, lining gravel, sand, and mud. The process of deposition of sediment in the lake is called limnis.
deposition on land, for example guguk sand on the beach from the sand up into the air at the time of the waves breaking on the shore ramps and sea breeze inland, thus forming a high sand pile. For example, guguk sand along the western coast of Dutch sea dike y ang into the country.
In Indonesia guguk resembling sand in the Netherlands can be found on the coast of Parang Tritis Yogyakarta.

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