摘要
广西溺谷湾海岸地貌主要由铁山港,大风江、钦州湾、防城港、珍珠港构成。其特点是岸线曲折,破碎,以峡谷的形状伸入内陆。根据地貌类型,可划分台地型溺谷湾和山地型溺谷湾二种,铁山港、大风江属前者,钦州湾、防城港、珍珠港为后者。 溺谷湾受构造控制,岸线走向与NE和NW向构造断裂带一致,而海平面相对上升使溺谷湾得到改造和发育。根据钻孔和^(14)C资料,广西溺谷湾是约在5000～6000年以前形成的。
The coastal geomorphics of drowned valley bays of Guangxi region are mainly represented by those of seven bays on its coast described in this paper. The bays thrust into the inland as canyons marked with tortuose and crushed shoreline. In geomorphics, the bays can be divided into two groups: platform drowned pattern and mountainous drowned pattern. The drowned valley bays were created by tectonic movement. The shoreline tends conform to the geofractures in NE-NW direction,which suggests the drowned valley got reformed and developed during the relatively rise in sea level. The borehole and radiocarbon data indicate the drowned valley of the Guangxi formed about 5 000-6 000 years ago.
出处
《海洋通报》
CAS
CSCD
北大核心
1990年第6期57-60,共4页
Marine Science Bulletin
