龙口-莱州断裂带中段韧-脆性构造变形特征及其动力学  

Ductile and Brittle Tectonic Deformation and Dynamics of the Central Sector of the Longkou-Laizhou Fault Belt, Shandong

作　　者：朱大岗[1] 吕古贤[1] 郭初笋[1] 郭涛[1] 

机构地区：[1]中国地质科学院地质力学研究所

出　　处：《地球学报（中国地质科学院院报）》1999年第1期16-23,共8页Acta Geoscientia Sinica

摘　　要：初步总结了龙口－莱州断裂带中段的地质特征，论述了断裂构造岩的分类特征及其复合关系，概括了韧－脆性剪切带内的韧性变形构造、矿物塑性变形和岩石变形组构等构造变形特征，划分了韧－脆性断裂带的活动期次，探讨了断裂带的演化特点。通过岩组分析、差应力值估算及温压条件判断，笔者还对断裂带进行了动力学分析。Geological features of the central sector of the Longkou-Laizhou fault belt, Shandong Province are summed up preliminarily in this paper. The classification features and compounding relationship of the fault tectonites are discussed. The tectonic deformation feactures,such as ductile deformation structures, mineral plastic deformation and rock deformation fabrics,in the ductile_brittle shear zones are summarized. The stages of the ductile_brittle fault belt are distinguished. The evolutionary characteristics of the fault belt is discussed. From an analysis of the fabric diagram, an estimate of differential stress values and a judgement of the temperature_pressure condition,a dynamic analysis of the fault belt has been performed.

关 键 词：韧-脆性断裂带 构造岩 构造变形 动力学 断裂带 

分 类 号：P542.3[天文地球—构造地质学] P551[天文地球—地质学]