Edexcel iAL Geography. Paper 2. Coasts. 2.3.2 Coastal landforms. All 6 syllabus points. PowerPoint and workbooklet
• Different wave types (constructive/destructive) influence beach morphology and beach sediment profiles, which vary seasonally.
• Erosion processes (hydraulic action, abrasion, attrition), rock type (resistant, less resistant) and structure (strata, faults, joints) influence cliff profiles and erosion rates
• Erosion creates distinctive coastal landforms (wave cut notch, wave cut platform, cliffs, cave-arch-stack-stump sequence).
• Sub-aerial processes of weathering (biological, chemical, mechanical) and mass movement (rockfalls, rotational slides) are important in landform formation.
• Sediment transportation (longshore drift) and the processes of deposition produce distinctive coastal landforms (deltas, spits, barrier beaches and bars).
• The Sediment Cell concept (sources, transfers and sinks) is important in understanding the coast as a holistic system.
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