随着科技发展,资源的短缺,人类活动空间的扩展,海洋已成为各国关注争夺的焦点,海洋局势日益紧张。海洋地质学是研究地壳被海水淹没部分的物质组成、地质构造和演化规律的学科,它的研究内容十分广泛,包括海岸与海底地形、海洋沉积物、洋底岩石、海底构造、大洋地质历史和海底矿产资源等多方面。因此,海洋地质学对海域疆界的划定具有指导意义,其复杂的海底地质地理环境,在航海、军事及海底工程中均有重要的现实意义,甚至可以成为海洋环境武器加以利用。 With the development of science and technology, the shortage of resources and the expansion of space for human activities, the oceans have become the focus of attention of all countries. The situation in the oceans is becoming increasingly tense. Marine geology is a discipline to study the composition, geological structure and evolution of the crust submerged by seawater. Its research content is very broad, including coastal and seabed terrain, marine sediments, ocean floor rocks, seabed structure, oceanic geology history and Seabed mineral resources and many other aspects. Therefore, marine geology is instructive for the demarcation of the boundary of the sea area. Its complicated seabed geo-geography environment has important practical significance in the navigation, military and subsea engineering and can even be used as a marine environmental weapon.