남해안 배후지역의 암석풍화가 해안지형발달에 미치는 영향

Abstract

Coastal processes of the Southern Coast are characterized, in hydrological aspect, by low kinetic energy, and, in the aspect of material budget, by lack of abundant immigrating materials nourishing tidal flat and beach. Marine energy could not attack the coast remarkably, and development of coastal sedimentary forms may be limited. Also the intented configuration of coast is restricting the movement and a reassignment of the materials. With this geomorphological situation is paradoxically operates that weathering features of neighbouring slope and land makes the role which is important. Consequently, in southern coast, its geomorphological landscape shows spatial variations. Namley, Development of sea cliff is particularly remarkable on sedimentary rocks, conserving rocky facies but physically less resistant than the other regional rocks are. In case of sedimentary form, development of tidal flat owes to fine materials issued from weathered mantle of a gneiss, schist, and that of sand beach is caused by sandy materials that weathered granitic rock provides. Most of rounded gravel beach (?mongdol?) in the Southern coast are distributed at the foot of solid andesite rocks whose weathering furnish rocky debris.