IAS (Admin.) Mains Geography Geomorphology-Fluvial Landforms Study Material (Page 7 of 8)

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Antecedent & Superimposed Drainage, Stream Capture & Channel Pattern

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Antecedent and Superimposed Drainage

Sometimes the upliftment of land is so slow that stream can maintain its established course by downward erosion, carving deep gorge through the mountains. As this stream antecedents or predates the uplifted landscape it is known as antecedent drainage.

Antecedent Drainage Source

Stream Capture

In case of stream capture, one stream actively attacks and erodes drainage of another stream that results in diversion of parts of its waters to pirating stream. The main reason for piracy is capacity of one stream to preserve and extend its valley at a lower level than that of an adjacent…

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Fluvial Erosional Processes and Landforms

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Fluvial landforms are those landforms which are shaped and modified by the running water. Running water has sculpted most of the land surface across the world in comparison to other agents of erosion like wind or Glacier. Streams are in a constant process of shaping the land surface into newer forms. The running water erodes even the loftiest of mountains and carves deep valleys or gorges into it. Besides erosion it transports heavy load from one place to the other. The present chapter focuses on the landforms prod…

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