中下地壳温度压力条件下岩石半脆性蠕变的实验研究  

EXPERIMENTAL STUDY ON SEMI-BRITTLE BEHAVIOR OF ROCKS AT TEMPERATURE AND PRESSURE CORRESPONDING TO MIDDLE-LOWER CRUST

作　　者：王子潮 王绳祖[1] 

机构地区：[1]国家地震局地质研究所,北京100029

出　　处：《地震地质》1990年第4期335-342,共8页Seismology and Geology

摘　　要：本文着重介绍了在中下地壳温度、压力条件下进行的几种岩石半脆性蠕变的实验研究结果。通过对这些岩石的蠕变曲线、蠕变类型、蠕变速度和时间、蠕变应变的关系、稳态蠕变速度-流动应力和蠕变破坏特征的观测、分析,阐述了地壳岩石半脆性蠕变的基本规律,并在温度、围压-流动应力座标系中给出了岩石半脆性蠕变的分区。This paper deals with some results of experimental study on semi-brittle behavior of rocks at the conditions relevant to the middle-lower crust. By observing and analysing macro-characteristics of deformed granite, gabbro and quartzite, such as creep curve, creep type, relationship between creep rate and time, creep deformation, steady-state creep rate and flow stress, as well as creep failure features, some basic regularities of semi -brittle rock creep are recognized. From the obtained data a semi-brittle creep mechanism map in flow stress-temperature and pressure space is suggested for predicting the potential semi-brittle creep behavior of rocks in the Earth's crust.

关 键 词：地壳 岩石 蠕变 半脆性 高温 高压 

分 类 号：P315.1[天文地球—地震学]