洋底动力学--从洋脊增生系统到俯冲消减系统  

Marine geodynamics:from mid-oceanic ridge system to subduction factory

作　　者：李三忠[1] 张国伟[1,2] 刘保华[3] 

机构地区：[1]中国海洋大学海洋地球科学学院／海底科学与探测技术教育部重点实验室,山东青岛266100 [2]西北大学地质学系,陕西西安710069 [3]国家海洋局第一海洋研究所,山东青岛266061

出　　处：《西北大学学报（自然科学版）》2009年第3期434-443,共10页Journal of Northwest University（Natural Science Edition）

基　　金：科技部“863”海洋技术领域基金资助项目(2009AA090300);国家自然科学基金资助项目(90814011、40776038、40472098);教育部新世纪人才基金资助项目(NCET-06-0595)

摘　　要：目的建立洋底动力学。方法对相关国际前缘研究成果进行综合研究。结果洋底动力学旨在研究洋底固态圈层的结构构造、物质组成和时空演化规律,研究洋底固态圈层与其他相关圈层,如软流圈、水圈、大气圈和生物圈之间相互作用和耦合机理,以及由此产生的资源、灾害和环境效应。结论洋底动力学以传统地质学理论和板块构造理论为基础,在地球系统科学思想的指导下,以海洋科学、海洋地质、海洋地球化学与海洋地球物理、数值模拟等高新探测和处理技术为依托,侧重研究洋脊增生系统、深海盆地系统和俯冲消减系统的动力学过程,以及不同圈层界面和圈层之间的物质和能量交换、传输、转变、循环等相互作用的过程,为探索海底起源和演化、保障人类开发海底资源等各种海洋活动、维护海洋权益和保护海洋环境服务的学科。Aim Owing to the deep understanding critical function of the oceans in the earth system, it is nessesary to establish Marine Geodynamics. Methods Based on synthetic investigation of related research, ocean floor is also a window for understanding many processes of the Earth. Results Marine Geodynamics or Dynamics of Ocean Floor is aimed to reveal architextures and structures, composition, temperal and spatial evolution of oceanic lithosphere, and interaction between lithosphere and its related spheres such as asthenosphere, hydrosphere, atmosphere and biosphere, and its impacts to submarine resources, hazards and environment. Conclusion Marine Geodynamics is based on traditional geological theory and plate tectonics and guided by thinking of Earth System Science, it focuses on dynamic processes in mid-oceanic ridge system, deep-sea basin system and subductin system, and transpotaion, interchange, transition and cycling of materials and energy on the different interfaces or between different spheres. The scientific goal is to study origin and evolution of ocean floor and oceanic lithosphere, to maintain marine activities of human being such as marine military and exploitation and exploration of submarine resources, to protect our national maritime rights and interests and to protect marine environment, using hi-tech techniques for numerical modelling, exploration and processing in the fields of marine sciences marine geology, amrine geophysics and marine geochemistry.

关 键 词：深海大洋 大洋岩石圈 洋中脊 俯冲工厂 多圈层相互作用 

分 类 号：P541[天文地球—构造地质学]