Erosional coastlines
Wave refraction focuses wave energy at headlands, so get more erosion occurs there
- At headlands may see evolutionary sequence: sea caves, sea arches, sea stacks, & tombolos
Suspended detritus is transported, but also is deposited when currents slow
Wave refraction tends to focus wave energy away from intervening pocket beaches, so more deposition occurs there
After a long time, erosion & deposition may generate a smooth beach line perpendicular to the dominant wave propagation direction