长乐—南澳断裂带东山段剪切变形与剪切加热作用

RESEARCHES ON THE SHEAR DEFORMATION AND SHEAR HEATING ALONG DONGSHAN SEGMENT OF THE CHANGLE NANAO FAULT ZONE IN FUJIAN PROVINCE ,SOUTHEASTERN CHINA

本文在系统的有限应变测量的基础上,对闽东南长乐—南澳断裂带东山段剪切变形特征进行了分析:利用变形石英显微亚结构。(动态重结晶颗粒)估算了剪切带内古应力并(σ—σ_3):通过对剪切变形能密度分布W(x)格离散化计算,采用有限差分数值近方法,获得了剪切热数值解:最后总结了研究地区剪切变形。

Based on the systematic finite strain measurement the featured of the shear deforms-tion along Dongshan segment of the Changle-Nanao fault zone are analyxzed Differential stress is estimated by using microstructures of the deformed quartxz from the Discrete calcultion of deformation energy density distribution across the shear the numerical soiution to the shear heating is obtained throunh finite differential equation and finally the relative temporal and spatial relatioship among shear deformation shear heating and dynamothermal petromineralization in the study area and the regional tection implication of the Changle Nanao fauit zone are summarized in this paper.