Stream erosion is the progressive removal of mineral material from the floor andsides of the channel, whether bedrock or regolith.
The removal of soil, rock, or dissolved material from one location on the Earth's crust and subsequent transport to another location, where it is deposited, is known as erosion.
This action is caused by surface processes (such as water flow or wind). Erosion differs from weathering, which is a static process. Physical or mechanical erosion refers to the removal of rock or soil as clastic sediment, as opposed to chemical erosion, which refers to the removal of rock or soil through dissolution. Eroded sediment or solutes can travel thousands of kilometers or just a few millimeters.
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