论地体综合构造热演化-试以青藏为例

作者在论述地体绘合构造热演化研究的意义和论证构造演化和热演化之间存在着成因联系的基础上，结合青藏工作实际，系统地阐述了:(1)在构造热演化模型设计中必须遵循概全性与概略性相结合的原则;模型因子应是概全的，但模拟的方法则是简略的;(2)以构造演化为框架、以热演化为本构的研究方法。文中列出了包括放射性生热(Q_r，地体应变生热(Q_s)，断层摩擦生热(Q_f) .岩石圈底熔减薄增热(Q_b)等多元热源项在内的二维昨稳态热传导一平流方程，作为应用有限差分与有限单元相结合方法求解宏观地质区构造热演化课题的通用方程。

ON INTEGRATED TECTONOTHERMAL EVOLUTION OF TERRANES-A CASE STUDY OF THE TIBET PLATEAU

First, the author emphasized the significance of study of the integrated tectonothermal evolution of terranes, and discusses the genetic linkage between tectonic evolution and thermal evolution of terranes. Then, on this basis, a systematic introduction with consideration of the case study of the Tibetan plateau is given to : (1) the designing of the tectonothermal model which must obey seasonable combination of all-sideness and simpicity, i. e. the model factors must be all-sided; whereas the simulation method ought to be simplified; (2) methodology of modeling in which the tectonic evolution is taken as a framework, while the thermal evolution of terranes is treated as a main line. In this paper a 2-D transient heat transfer-advection equation is listed with consideration of multifold heat source components including radiogenic heating (Qr) , strain-heating during terrane deformation (Qs) , friction-heating along faults(Qf) and reinforcement of basal heating(Qb)due to basal delamination of the litho-sphere etc. Such an equation is accepted as a basic equation to solve the integrated problem of tectonothermal evolution of terranes in a macroscopic geological region using combined method of finite difference and finite element.