从多旋回说到开合构造

From the Polycyclicity Theory to Open-and-Close Tectonics

本文首先概述了多旋回学说的基本要点。根据多旋回构造运动是否转移空间位置，笔者将多旋回构造运动分为二类：原地叠加和异地再现。对后者深入研究，进而提出构造迁移论。根据板块构造基本原理，结合中国实际，黄汲清建立了板块手风琴运动模式，丰富了板块构造和多旋回说的内容。在此基础上，笔者提出开会构造的概念，将多旋回说、手风琴式运动、构造迁移和板块构造等联系在一起，试图开拓大地构造研究的新途径。

Prof. Huang Jiqing(T,K.Huang)put forward the concept of polycyclic tectonic.movement which was developed into the polycyclicity theory that is influential all over theworld. The present paper outlines the basics of this theory.The present author tries to distinguish between two kinds of polycyclic tectonicmovements:in situ superimposition and re- occurrence in other places according to whetherthey re- occur in the same place or not.Further study on the latter led to the concept oftectonic migration. Tectonic migration is the vivid representation of the re- occurrence ofpolycylic movements,an indepth development of the polycyclicity theory.Its brief descriptionwill be given as below. Applying the plate tectonics theory to the practical geology of China,Huang set up theaccordion movement model of plate movement,which has enriched the plate tectonics theoryand the polycyclicity theory.Based on the pioneer’s research,the present author has proposedthe concept of open- and- close tectonics,inter-relating the polycyclicity theory,accordionmovement,tectonic migration and plate tectonics,and tried to find a new way in the study ofgeotectonics,A brief account on the open- and- close tectonics and its relation to thepolycyclicity theory are given below. From the polycyclicity theory through the tectonic migration theory to open-and- closetectonics,one can trace the trajectory of the polycyclicity theory and see its improving anddevelopment,with the open-and- close tectonics(O-C tectonics)being a milestone on the wayof the development of the polycyclicity theory.