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Morphology of Shore Platforms and Sea Cliffs Controlled by Rock Strength and Tidal Range

  • Journal of the Association of Korean Geographers
  • Abbr : JAKG
  • 2015, 4(2), pp.241-250
  • Publisher : Association of Korean Geographers
  • Research Area : Social Science > Geography

이수용 1 Choi, Kwang Hee 2

1국립환경과학원 연구원
2국립환경과학원

Candidate

ABSTRACT

This study describes the morphology of shore platforms with sea cliffs along the coast of South Korea as well as rock surface strength and tidal environment in which they are located. In ten study areas, topographic surveys for cross-sectional analyses and N-type Schmidt hammer tests for rock stength were applied in the field. Horizontal or subhorizontal shore platforms with gradient less than 0.5 degree, occur along the eastern shore while seaward sloping platforms are developed in the western and southern shores. Rock rebound values do not depend on rock types or regions, but they are higher in shore platforms than in cliffs. In particular, mean width of shore platforms are generally increased as increase of the differences of rebound values between the two landforms, regardless of tidal ranges. This indicates the shore platforms are developed by the retreat of sea cliffs and the rocky shoreline with weak sea cliffs can be retreated faster than that with strong cliffs.

Citation status

* References for papers published after 2023 are currently being built.