Explain four types of drainage pattern
Answers
Answered by
120
Drainage pattern refers to the spatial arrangement and form of drainage systems corresponding to geometric shapes. These are dependent on rock types, geological structure and climatic conditions. The following are the prominent drainage patterns:
Dendritic- It resembles the shape of a tree and is the most common pattern on the earth’s surface. It develops in regions where the river channel follows the slope of the terrain.
Trellis- It is formed when the tributaries of a river join it at right angles to form numerous longitudinal streams. It develops in regions where hard and soft rocks exist parallel to each other.
Rectangular- It develops in regions having strongly jointed rocky terrain. The tributaries are more widely spaced in this pattern compared to trellis pattern. The angle of confluence is determined by faults and fractures among the rocks in this terrain.
Radial- It develops when streams diverge from a central higher point or dome towards all directions. Thus, it resembles a centrifugal pattern where the arrangement of streams is similar to spokes of a wheel.
Dendritic- It resembles the shape of a tree and is the most common pattern on the earth’s surface. It develops in regions where the river channel follows the slope of the terrain.
Trellis- It is formed when the tributaries of a river join it at right angles to form numerous longitudinal streams. It develops in regions where hard and soft rocks exist parallel to each other.
Rectangular- It develops in regions having strongly jointed rocky terrain. The tributaries are more widely spaced in this pattern compared to trellis pattern. The angle of confluence is determined by faults and fractures among the rocks in this terrain.
Radial- It develops when streams diverge from a central higher point or dome towards all directions. Thus, it resembles a centrifugal pattern where the arrangement of streams is similar to spokes of a wheel.
Answered by
7
Answer:
Drainage systems or river systems are defined as the patterns formed by the rivers, streams and lakes in a particular drainage basin.
Explanation:
Drainage patterns are classified on the basis of their texture and form, that includes dendritic, deranged, centripetal and trellised.
- Dendritic Drainage Pattern: These patterns looks like the branches of tree roots which developed in the region where the river channel moves with the slope of the vertical and horizontal dimensions of land surface. In this system, many streams of river contribute and joined together into the tributaries of the main river.
- Deranged Drainage Pattern: This system do not have any coherent pattern to the rivers and lakes as developed in areas of geological disruption such as glacial activity or volcanic deposition. These system get stable overtime by transporting sediment to improve flow.
- Centripetal Drainage Pattern: In this system the streams flow towards a lowland or central depression rather originating from it. This system is mostly seen in southwestern and western portions of the United States where basins.
- Trellised Drainage Pattern: In this system the drainage pattern seems rectangular shaped that develops where bands of rocks vary in resistance. These water channels form a trellis.
Learn more about drainage pattern:
https://brainly.in/question/1493711
https://brainly.in/question/14548132
Similar questions