摘要
简要概述了近年来石榴石的晶体结构、高温高压实验、显微构造及其变形机制等领域的研究现状与进展；结合大别山榴辉岩的研究成果，着重讨论了石榴石的变形机制及其运动学特征，认为大别山燕窝榴辉岩中的石榴石经受了两期变形作用：早期变形是在榴辉岩相条件下，表现为塑性变形，其变形机制为简单剪切；而晚期变形则发生在角闪岩相条件下，表现为脆性变形的特点。
In this paper,an emphasized review about the recent researching achievements of garnets in their crystal textures,rheological experiment of high temperature and high pressure,micro structures and their deformation mechanism is given.Then,based on the study of the garnets from Dabie Mountains eclogites,the paper discusses the deformation mechanism and its kinetic significance.It is suggested that the garnets have undergone two deformations:in early stage,the garnets displayed plastic deformation during the metamorphism of eclogitic facies;but ,in late stage,the garnets displayed brittle deformation under the condition of amphibolite facies.
出处
《地质科技情报》
CAS
CSCD
北大核心
1998年第4期31-36,共6页
Geological Science and Technology Information
基金
国家自然科学基金
安徽省地矿局资助项目
关键词
石榴石
显微构造
变形机制
流变学
garnet,rheological experiment of high temperature and high pressure,micro structure,deformational mechanism,rheology
