南黄海地形地貌特征及其成因探讨

孔祥淮; 陆凯; 徐晓达; 杨慧良; 张勇; 尚鲁宁

doi:10.16562/j.cnki.0256-1492.2022072903

南黄海地形地貌特征及其成因探讨

1.
中国地质调查局青岛海洋地质研究所，青岛 266237

2.
青岛海洋科学与技术试点国家实验室海洋矿产资源评价与探测技术功能实验室，青岛 266237

基金项目: 中国地质调查局地质调查项目（DD20221710，DD20190205）

详细信息

作者简介: 孔祥淮（1968—），男，博士，正高级工程师，主要从事海洋地质、地球化学研究，E-mail：kongxianghuai@163.com

通讯作者: 徐晓达（1970—），男，高级工程师，主要从事海洋地质研究，E-mail：king_xgd@126.com

中图分类号: P736.2

收稿日期: 2022-07-29

修回日期: 2022-09-26

录用日期: 2022-09-26

刊出日期: 2022-12-28

A study on the characteristic and its cause of topography and geomorphology of the South Yellow Sea

1.
Qingdao Institute of Marine Geology, CGS, Qingdao 266237, China

2.
Laboratory for Marine Mineral Resources, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao 266237, China

More Information

Corresponding author: XU Xiaoda, king_xgd@126.com

Received Date: 29 July 2022

Revised Date: 26 September 2022

Accepted Date: 26 September 2022

Publish Date: 28 December 2022

摘要

摘要:
利用多年来大量的实际调查资料并结合以往的研究成果，对南黄海海底地形进行了分区研究，经过地貌分析、地貌单元识别，划分了地貌类型，并探讨了地形地貌的成因。结果表明，南黄海海底地形可以划分为6个地形单元，西部自北向南分别为山东半岛东部水下泥楔地形区、海州湾缓倾斜地形区和苏北岸外舌状地形区；中部纵列的两个地形区分别为平坦的浅海平原地形区和低洼的黄海槽地形区；东部为坡度较大的斜坡-沟槽地形区。海底总体地势由西、北、东三面向中部和东南方向缓慢倾斜，西部坡度比较平缓，东部相对较陡。地貌类型中规模较大的三级地貌有11种，黄海槽谷中心线以西以堆积、侵蚀-堆积地貌为主，以东以构造-堆积地貌为主；南黄海现代海底地形地貌的发育，主要受区域构造、海平面升降变化、海洋水动力和物源等因素控制。
- 地形 /
- 地貌 /
- 潮流沙脊 /
- 黄海槽 /
- 南黄海
Abstract:
In this paper, based on a large number of actual survey data over the years and combined with previous research results, the sea bottom topography and geomorphology of the South Yellow Sea are studied. The results show that the sea bottom topography of the South Yellow Sea is classified into 6 units. In the western South Yellow Sea, there are underwater mud wedge terrain area of east Shandong Peninsula, gentle-dipping terrain area in the Haizhou Bay and tongue-shaped terrain area off the coast of Jiangsu Province. In the middle South Yellow Sea, there are the terrain areas of shallow plain and the Yellow Sea Trough. And there is slope-trench terrain area in the eastern of South Yellow Sea. The sea bottom slops down gradually from west, north and east to the center and the south-east. The western slop is smooth terrain, but the eastern slop is relatively steep. There are 11 geomorphologic types on the sea bottom of the South Yellow Sea, dominated by accumulation, erosion-accumulation type of geomorphology in the west of the central line of the Yellow Sea Trough Valley, and in the east, dominated by tectono-accumulative geomorphology. The evolution of sea bottom topography and geomorphology of the South Yellow Sea is mainly controlled by regional structure, sea level fluctuation, ocean hydrodynamics and material sources.
- topography /
- geomorphology /
- tidal sand ridge /
- Yellow Sea Trough /
- South Yellow Sea

HTML全文

图 1 南黄海海底地形分区图

Figure 1.

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图 2 沿37°N的地形剖面

Figure 2.

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图 3 南黄海地貌分区图

Figure 3.

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图 4 水下侵蚀-堆积浅滩3D示意图

Figure 4.

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图 5 南黄海陆架构造图^{[21, 25]}

Figure 5.

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表 1 南黄海地貌类型分级分类

Table 1. Classified list of geomorphological types in the South Yellow Sea

一级地貌	二级地貌	三级地貌		四级地貌
一级地貌	二级地貌	地貌类型	成因分析	四级地貌
大陆地貌	海岸带地貌	水下侵蚀-堆积岸坡	侵蚀和堆积	冲蚀沟槽
		水下侵蚀-堆积浅滩	堆积和侵蚀
		海湾堆积平原	堆积作用
		水下构造台地	构造作用基础上侵蚀和堆积	溺谷
		水下构造台坡	构造作用基础上侵蚀和堆积
	大陆架地貌	陆架侵蚀平原	侵蚀作用为主	古河谷、古洼地
		陆架侵蚀洼地	侵蚀作用为主	潮流沙脊
		古三角洲平原	堆积作用为主	冲蚀谷
		陆架堆积平原	堆积作用为主
		陆架侵蚀-堆积斜坡	堆积和侵蚀	冲蚀谷
		潮流沙脊群	侵蚀和堆积	潮流沙脊、冲蚀沟槽

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