一个可能的糜棱岩原岩多孔介质模型的形成及其数值分析  

Analysis of the mylonite crystal porous mold by the finite element method

作　　者：葛仁余[1] 白嘉楠[1] 杨伯源[1] 

机构地区：[1]合肥工业大学

出　　处：《安徽工程科技学院学报（自然科学版）》2005年第4期47-49,共3页Journal of Anhui University of Technology and Science

摘　　要：糜棱岩是一种动力变质岩,其独特的形成机制使其成为一种具有丰富地质信息的载体.糜棱岩的研究在理论和实践上都具有重要意义,对其观测研究越来越受到地质学界的广泛关注.建立糜棱岩原岩混合粒径和晶粒等径多孔介质模型并进行了有限元计算,分析发现:在糜棱岩的产生条件下多孔介质破碎是完全可能的,计算结果解释了糜棱岩中的一系列地质现象.Mylonite is a kind of dynamometamorphic rock. Its particular formation mechanism makes itself a carrier of rich geological information. The research of mylonite is significant not only in theory but also in practice. Many geological scholars are being absorbed in observing and investigating it. The crystal molds of mylonite of mixed radius and identical radius are calculated with the finite element method and It is found that the smashing of the porous media is probable on the condition of mylonite＇s formation. Based on the result, series of geological phenomena are explained.

关 键 词：糜棱岩 多孔介质 有限元 混合粒径模型 晶粒等径模型 

分 类 号：O346.1[理学—固体力学]