최경식 교수

ABSTRACT An occurrence of inclined heterolithic stratification (IHS) is described from a tidal point bar in a 40-m-deep distributary of the macrotidal (tidal range 3.6-7.8 m), Han River delta, Korea. The channel bank demonstrates a convex-upward profile with intermittent presence of wave-formed scarps and terraces near the low-water level. The vertical succession of IHS is approximately 25 m thick and dips into the channel with angles reaching 14°. The IHS overlies 15 m of trough cross-bedded sa

Abstract Well-developed rhythmic climbing-ripple cross-lamination (RCRL) was described from estuarine tidal channels in Gomso Bay, west coast of Korea. Associated with upper intertidal point bars of closely spaced meandering channels, RCRL occurs between mean sea level and mean neap high-water level. RCRL is typically less than 40 cm thick, and constitutes the upper part of fining-upward channel-fill successions that are capped by intensely bioturbated mud. RCRL consists of mud-draped climbing-r

Research Article| June 01, 2015 Morphodynamics of Tidal Channels In the Open Coast Macrotidal Flat, Southern Ganghwa Island In Gyeonggi Bay, West Coast of Korea Kyungsik Choi; Kyungsik Choi School of Earth and Environmental Sciences, Seoul National University, Seoul 151-742, Korea e-mail: tidalchoi@snu.ac.kr Search for other works by this author on: GSW Google Scholar Joo Hee Jo Joo Hee Jo School of Earth and Environmental Sciences, Seoul National University, Seoul 151-742, Korea Search for othe

Late Pleistocene silty tidal rhythmites in Kyunggi Bay, west coast of Korea, demonstrate various rhythmicities in lamina thickness associated with hierarchical tidal cycles ranging from semidiurnal to monthly (anomalistic) tidal variation. Such rhythmicities are very similar to those of modern tidal cycles in Kyunggi Bay, implying that late Pleistocene tides in Kyunggi Bay were similar to those of the present day. Hourly modern tides were analyzed as event series to simulate the late Pleistocene