Page 54 - 雕鐫海之角
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海階(小階地) 海岬
Marine terrace Sea cape
海岸受到海水的侵蝕,呈現凹凸的海岸線, Because of differential erosion, the rocks along
沿海岸的階狀地形,稱為海岸階地,簡稱海
形成岬灣地形。海灣與海岬是因為岩石有軟硬的 the coastal line retreat at different rate and form the
階;係因海水面相對下降,原有的波蝕棚、海蝕 sea cape and gulf.
差別,遭受海浪衝擊,而形成的海岸景觀。海岬
平臺或堆積平臺離開水面而成。鼻頭角的海階分 Between Bitou cape and Longdong cape lies the
的岩石比海灣堅硬,一般由厚層的砂岩所構成, Longdong fault that has eveolved into the Longdong
布高度不同,代表著海水面曾經停留在某個高度
在海浪長期侵蝕之下,特別堅硬的岩石就會凸出 gulf.
較長的時間。
海岸,形成海岬。龍洞灣就是龍洞斷層通過的地
Marine terraces are wave cut platforms that have
been uplifted by tectonic movement or relative sea 方,岩石會產生破碎帶,逐漸的凹入陸地,形成
level fall. 海灣。
地質圖書 Geopark at Northeast and Yilan Coast National Scenic Area