MASS WASTING OF COASTAL HEADLANDS IN SOUTHERN THAILAND: A COMPARISON
The landscape in Krabi Province along the southwest coast of Thailand is characterized by steep, limestone headland cliffs, sandy pocket beaches, and karst towers (stacks) offshore from the retreating headlands. The steepness of the limestone headlands and karst towers (stacks) is maintained by rock falls and rock slides. The triggering mechanism for these rock falls and slides is oversteepening of the headland and tower slopes by the formation of notches at their base. Thus, the steepness of the limestone headlands and karst towers (stacks) is maintained by the continuous erosion of their base.
In summary, mass wasting processes are structurally controlled in the granitic headlands whereas they are controlled by erosional processes in the limestone headlands and karst towers (stacks).