雅鲁藏布江缝合带内韧性剪切带的地质特征及其意义  

DUCTILE SHEAR ZONE IN YALUZANGBU SUTURE ZONE: CHARACTERISTICS AND SIGNIFICANCE

作　　者：吴新国[1] 孙立新[2] 郭金城 张振利 

机构地区：[1]石家庄经济学院,河北石家庄050031 [2]中国地质大学,北京100083 [3]河北省区调研究所,河北廊坊065000

出　　处：《大地构造与成矿学》2005年第2期198-203,共6页Geotectonica et Metallogenia

基　　金：西藏地质大调查 1:25万桑桑幅;萨嘎幅;吉隆幅项目.

摘　　要：阐述了雅鲁藏布江缝合带内发现的巨型韧性剪切带的规模、构造分带性及其地质特征,指出了膝折构造带与低温高压变质带以及韧性剪切带的成因关系,阐明了缝合带内韧性剪切带在板块俯冲时的空间位置及其构造地质意义。In this paper the scale zoning and characteristics of the giant ductile shear belt discovered recently in the Yaluzangbu suture were discussed. The genetic relationship among the kink fold belt, low-T and high-P metamorphic belt, and ductile shear belt were studied. The locality of the ductile shear zone in the suture during subducting and its significance were also demonstrated.

关 键 词：板块缝合带 韧性剪切带 膝折构造带 

分 类 号：P542[天文地球—构造地质学]