关于南海构造演化动力学机制研究的一点思考  

THINKING ABOUT THE DYNAMICS MECHANISM STUDY ON FORMATION AND EVOLUTION OF SOUTH CHINA SEA

作　　者：夏斌[1] 崔学军[1] 谢建华[1] 王冉[1] 

机构地区：[1]中国科学院广州地球化学研究所与南海海洋研究所边缘海地质重点实验室,广东广州510640

出　　处：《大地构造与成矿学》2004年第3期221-227,共7页Geotectonica et Metallogenia

基　　金：中国科学院知识创新工程重要方向项目 :南海及邻区大地构造系统的组成;结构及演化 (KZCX -SW -117)资助

摘　　要：南海处于欧亚板块、太平洋板块和印度 -澳大利亚板块的交汇处 ,演化历史复杂。由于研究思路、方法、手段和研究程度的局限 ,在南海扩张期次、扩张脊结构、动力来源等方面仍存在争议。争议的焦点主要集中在其形成演化动力学机制上 ,主要有三种观点 :(1)印度与欧亚板块碰撞挤出成因说 ;(2 )地幔上涌成因说 ;(3)太平洋板块俯冲成因说。本文对前人有关南海动力学演化的主要模式进行了分析 ,并指出其存在的不足 ,在此基础上结合作者近年来在南海地区工作的认识和体会 ,建议对南海地区海 -陆岩石圈相互作用、深源岩浆活动和构造动力学演化的数值模拟等方面进行综合研究。The tectonic evolution of South China Sea is very complicated because it is located in the convergent hinge of European-Asia plate, Pacific plate and India-Australia -plate. There still exists controversy in terms of the spreading times, spreading ridge structure and the dynamics resource due to the limit of research ideology, approach, instruments and poor research degree. The disputations are mainly focused on dynamics mechanism of the formation and evolution. Three important opinions are 1) collision of India-Asia plate and propagating extrusion model; 2) mantle upwelling model and 3) the subduction of Pacific plate model. These models have been analyzed in the context of this paper, each of them has its own disadvantages. On the basis of analyses and the acquaintance and experience of geological work in South China Sea, it is suggested here that the integrating research of ocean-continent interaction, deep source magma activity should be paid more attention. In addition, numerical simulation work should be especially reinforced.

关 键 词：南海 动力学机制 研究现状 建议 

分 类 号：P541[天文地球—构造地质学]