【摘要】 长乐—南澳左行韧性剪切带位于东南沿海,是西太平洋大陆边缘构造带的一个组成部分。本文基于野外观察及室内分析,并借助透射电镜对变形石英的内部结构进行了观察,利用变形石英显微构造参数估算剪切带中的应力差值,由此探讨了形成构造岩的机制。更多还原

【Abstract】 The Changle—Nan’ao Shear Belt in the southeastern coast of China,trending NE—NNE,is a largesinistral ductile shear belt forming in Mesozoic and belongs to a part of the tectonic belt in pacific conti-nental margin.The paper discusses on the tectonic features and the deformation mechanism in the Jin-jiang segment of the Changle—Nan’ao Shear Belt.Based on the abundant data obtained from the fieldobservation and the indoor analysis,the author studied the features of tectonite in the shear belt and themicrostructure of quartz by using the TEM and estimated the stress difference（σ₁—σ₃）of the shear beltaccording to the parameters of the deformed quartz microstructure.Finally,a discussion was herein madeon the mechanism of forming the tectonite in the shear belt.更多还原