Sea Chasm Landscape
Reference work entry
This is a landscape consisting of linear grooves that develop on the inland side near sea level on a wave-cut platform (terrace). The horizontal extent is parallel with the coastline. In a vertical section, it looks like a ‘V’ lying horizontally and pointing towards land. If sea level changes, it can look like a horizontal rectangle or ‘U’. The inner-most part of a sea chasm indicates the average sea level, and the ceiling and floor indicate the high and low tides. Sea chasms are not the same as sea caves; their length along the shoreline is much greater than their inland depth, whereas the depth of a sea cave is much greater than its width (Fig. 16).
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