(i) Sea cliff in Cheung Chau(refer to attachment 5)
The sea cliff is connected with the wave-cut platform in Nam Tan Wan. Wave energy is concentrated at the line of weakness (joints, fault lines, etc.) The cracks widen as wave erosion. The overhanging walls collapse to form sea cliff.
(ii) Sea cliffs in Ping Chau(refer to attachment 6)
The sea cliffs in Ping Chau are in Lan Kwo Shui. There is an almost vertical cliff that plunges down to meet the sea. This region is the highest point along the west of the Ping Chau. The waves keep erodes the coast, many precipitous(陡峭) cliffs. Some sea cliffs are still forming and some are receding because the platform is widening. But some have stopped the forming process as the cutting power is lost.
You should compare the sea cliffs in these 2 places.
回覆刪除