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Learn about the role of geomorphic agents like running water, glaciers, wind, and waves in shaping the Earth's surface over time. Discover the stages of rivers, erosional landforms like gorges and waterfalls, and depositional landforms such as alluvial fans and deltas. Witness the systematic changes and sequential developments of landforms with the assistance of weathering and mass wasting processes.
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FLUVIAL LANDFORMSAmbiliy P RAssistant ProfessorDepartment of Geography
The geomorphic agents acting over long periods of time produce systematic changes leading to sequential developments of landforms • Running water, ground water glaciers, wind and waves are powerful erosional and depositional agents shaping and changing the surface earth aided by weathering and mass wasting processes
RUNNING WATER IS THE MOST IMPORTANT GEO MORPHIC AGENTS IN BRINGING ABOUT THE DEGREDATION OF THE LAND SURFACE
Stages of a river • Upper course- Youthful • Middle course-mature • Lower course-Old
Erosional landforms • Gorge • Canyon • V-shaped valleys • Rapids • Waterfalls • Potholes • Plunge pools • Incised meanders • River terraces
A Gorge It is a deep valley with very steep to straight sides
CANYON A canyons is characterized by steep step-like Side slope and may be as deep as a gorge.
MEANDERS Meanders Loop like channel patterns called meanders develop over flood and delta plains.
DEPOSTIONAL LAND FORMS • ALLUVIAL FANS • NATURAL LEVEES • FLOODPLAINS • POINT BARS • MEANDERS • BRAIDED CHANNELS • DELTAS
THANKS Ambily P R Asst.Prof in Geograpy N S S College Pandalam