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Nilanjan Bhowmick AIR 3, CSIR NET (Earth Science)
- IIT JAM
- Geology (GG)
What is the difference between avulsion and river piracy?
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Sajan sarthak Best Answer
1.Avulsion is the rapid abandonment of a river channel and the formation of a new river channel. Avulsions occur as a result of channel slopes that are much less steep than the slope that the river could travel if it took a new course. reason Flood ,tectonic process activates the path. Here bed load and tectonic upliftment is the main factor. only direction change of river stream 2.Stream capture, river capture, river piracy or stream piracy is a geomorphological phenomenon occurring when a stream or river drainage system or watershed is diverted from its own bed, and flows instead down the bed of a neighbouring stream. Due to headward erosion. and completely one stream is captured by another one and leaves one abandoned. occurs at youth stage of river. 1st figure is avulsion 2nd is piracy
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Rahul kumar![best-answer]()
River piracy (also known as river capture or stream capture) is a geomorphological phenomenon occurring when a river drainage system or watershed is diverted from its own bed, and flows instead down the bed of a neighbouring stream. Avulsion is the rapid abandonment of a river channel and the formation of a new river channel. Avulsion occurs as a result of channel slopes that are much less steep than the slope that the river could travel if it took a new course. Overall, river capture is associated with more than one river channel in which one river will be captured by other. Whereas, river Avulsion is related to the change in the river channel of the same river influenced by different factors.