A **drainage pattern** refers to the arrangement of rivers, streams, and lakes in a particular drainage basin. These patterns are shaped by the topography, geology, and gradient of the land. Here are some common types of drainage patterns:
1. **Dendritic Pattern**: Resembles the branches of a tree and is the most common type. It forms in regions with uniform material where the river channels follow the slope of the terrain.
2. **Trellised Pattern**: Features parallel main streams with short tributaries meeting at right angles. This pattern typically develops in areas with alternating bands of hard and soft rock.
3. **Rectangular Pattern**: Characterized by right-angle bends and tributaries. It forms in regions with a rectangular grid of faults or joints.
4. **Radial Pattern**: Streams radiate outward from a central high point, like a volcano or dome.
5. **Centripetal Pattern**: Streams converge into a central basin, often found in areas with a central depression.
6. **Annular Pattern**: Forms a ring-like pattern around a central high point, typically in areas with dome or basin structures.
7. **Parallel Pattern**: Streams run parallel to each other, usually found in regions with a steep slope.
8. **Barbed Pattern**: Tributaries flow in the opposite direction to the main stream, often due to river capture.
9. **Pinnate Pattern**: Resembles the veins of a leaf, with many small tributaries joining a main stream.
10. **Herringbone Pattern**: Similar to the barbed pattern but more symmetrical, often found in areas with alternating hard and soft rock layers¹²³.
¹: [Geography Notes](https://dasolverliveblog.blogspot.com
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