大陆裂谷研究中的几个前沿课题

本文强调研究大陆裂谷具有重要的理论和实践意义，重点评述了当前大陆裂谷研究中的几个前沿课题：（１）建立大陆裂谷深部结构模式，介绍了张性破裂模式和地幔柱模式；（２）研究大陆裂谷与板块构造关系，认为大陆裂谷的发育与变化的板块运动密切相关；（３）探讨大陆裂谷的热流作用，证实了裂谷深部存在高温驱动的流体和热循环，推测这里可能就是幼年大洋产生的地带；（４）总结大陆裂谷成因类型，根据地球动力学状态划分了五种类型；（５）完善大陆裂谷研究思路与方法，提出多数大陆裂谷为一复杂的动力体系，系统论是全面研究这一复杂动力体系的有效方法。

SOME FRONTIER PROBLEMS IN THE STUDY OF CONTINENTAL RIFT

This paper emphasizes the theoretical and practical significance of research incontinental rifts,and puts forward several frontier problems to be solved today.(1)Forming the continental rift deepseated configuration model, introducing the tensionalfracture model and mantle plume model.(2)Studying the relationship between the conti-nental rift and plate tectonics. It is considered that the development of continental rift isclosely bound up with plate movement variations. (3) Inquiring into the heat flowing ofcontinental rift. It is confirmed that there is a fluid and heat circulation drived by hightemperature in the deep part of the rift,and it is inferred that this is the zone where youth-ful ocean formed.(4) Summing up the genetic type of continental rift, on the basis ofgeodynamics,we can distinguish them into five types. (5) Improving the thinking andmethod of the study of continental rift. Most of continental rift zones are complex dynamicsystems. Systematology theory is the effective way to study the complex dynamic system.