Abstract

Abstract The rocky shores of the east and west coasts of Korea have distinctly different geomorphologies. Tidal processes dominate coastal landform development on the west coast, facing the Yellow Sea, while wave processes are more important on the east coast. This gives rise to broad differences in the nature of rocky landforms between these coastlines. With the exception of coastal terraces, there is limited understanding of rock coast systems in South Korea owing to a lack of quantitative analysis. In particular, wide shore platforms along the west coast have been interpreted as inherited features from the Last Interglacial or earlier stages, but the chronology of their development remains poorly constrained and understood because of insufficient investigation. Recently, cosmogenic surface exposure dating has been successfully applied to these platforms, providing new information on their development and offering the possibility of making better predictions of future coastal change. The absolute dating of contemporary and inherited rock coast landforms should help to better constrain the histories of relative sea-level change and coastal morphodynamics in Korea.

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