Himalayan Drainage vs Peninsular Drainage
Himalayan Drainage vs Peninsular Drainage
Himalayan Drainage
- Antecedent drainage i.e. Himalayan rivers are older than lesser Himalayas and Shiwaliks
- Himalayan rivers are older than the structures they cut across
- Perennial flowing River → fed by rain and melting glaciers
- Geologically young with long course of flow
- Flow through lose alluvial soils of northern plains
- Form deep valley and gorges due to intensive erosion
- Generate large quantities of sediment & cause annual flooding & form Deltas
- Nature of river course is quiet changing, meandering , forming ox-bow lakes & high waterfalls
- Have deeper basins and large catchment areas
Peninsular Drainage
- Super-imposed drainage i.e. regional structures are older than the river valleys that cut through them.
- Nature of flow is seasonal i.e. majorly during south west monsoon
- Geologically older with shorter course of flow
- Flow through hard granitic soils of peninsular India
- Shallow graded valleys with little erosion.
- Forms shallow valleys, small waterfalls, deltas and estuaries