| 摘要: |
| 本文通过多年来大量的实际调查资料,将黄海划分成北黄海海湾潮流脊与岛礁、山东半岛沿岸水下堆积岸坡及水下阶地、南黄海西部弱堆积侵蚀平原、旧黄河-古长江三角洲堆积平原、海峡等七个地貌区,它们都各具特有的地貌类型。北黄海和南黄海原为两个大型的山间盆地,尔后由于海侵、被大量沉积物充填,成为今日连成一体的黄海浅海平原。 |
| 关键词: 海底地貌 潮流沟脊 水下三角洲 浅海平原 古山间盆地 |
| DOI： |
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| 基金项目:中国科学院海洋研究所调查研究报告第1643号;国家自然科学基金 |
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| THE SUBMARINE GEOMORPHOLOGICAL ZONES AND GEOMORPHOLOGICAL TYPES IN THE HUANGHAI SEA |
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| Abstract: |
| Analyses of continuous sounding records, side scan sonar records, sub-bottom strata records and other data show that the Huanghai Sea can be divided into seven geomorphologic zones, namely: 1) the bay tidal sand ridges and island-reef geomorphologic zone in the northern Huanghai Sea, 2) the submarine slope and the submarine terrace geomorphologic zone in the coastal zone of the Shandong Peninsula, 3) the weak-accumulation erosional plain geomorphologic zone in the western part of the southern Huanghai Sea, 4) the old Huanghe River-old Changjiang River delta accumulation plain geomorphologic zone, 5) the eastern erosion-accumulation plain geomorphologic zone, 6) the shallow accumulation plain geomorphologic zone in the center of the Huanghai Sea, and 7) the Strait geomorphologic zone. Tidal sand ridges, tidal channels and well-developed scouring trough around the Huanghai Sea are its prominent geomorphic features. The northern Huanghai Sea and the southern Huanghai Sea are actually two large paleo-intermonutainous basins. In the geologic past, as a result of several transgression-regression sequences, vast amount of terrigeneous material filled up the two basins into one, forming the present Huanghai continental shallow sea basin. |
| Key words: Bottom geomorphological zones, Tidal sand ridge, Submarine delta, shallow sea plain, Old intermountainous basin |
