摘要
从地球环境动力学和地球内部动力学2个方面介绍国际大洋钻探计划研究方向与钻探目标,前者主要试图了解地球气候变化历史与规律、海平面变化的原因与影响以及通过沉积物、液体和细菌等研究了解全球碳循环、气水合物形成和深海生物资源等重要问题;后者主要试图探测地球深部热与物质的转换、调查岩石圈变形与地震形成过程。同时,也介绍了ODP提出的3个挑战性项目,即自然气候变化和气候剧变原因、地质过程的现场监测和大陆边缘与洋壳深部结构探测。
The research priorities and drilling goals of Ocean Drilling Pro gram ar e introduced from two scientific themes,e.g.dynamics of earth's environment and dynamics of earth's interior,in this paper.The scientific theme of dynamics of e arth's environment try to understand earth's changing climate,causes and effect s of sea_level change,and other problems such as global carbon cycle,formation o f gas hydrates and submarine biological resources based on studies on sediment,flu ids and bacteria.The scientific theme of dynamics of earth's interior try to exp lore the transfer of heat and materials to and from Earth's interior,and to inve stigate deformation of the lithosphere and earthquake processes.In addition,thre e challenging initiatives,including understanding natural climate variability an d the causes of rapid climate change,in_situ monitoring of geological processes, and exploring the deep structure of continental margins and oceanic crust,are al so introduced.