桂东北地区韧性剪切带特征及其分布位置与金成矿带分布位置的关系

Characteristics of Ductile Shear Zone and the Relationship between Distribution Location of Ductile Shear Zone and Gold Metallogenic Belts in Northeastern of Guangxi

通过总结分析,认为桂东北地区目前有4条已识别出的韧性剪切带,分别是越城岭花岗岩体西侧韧性剪切带、三防—摩天岭韧性剪切带、瓢里—三门韧性剪切带以及马堤—泗水韧性剪切带。这4条韧性剪切带均形成于加里东期,具有明显典型的韧性剪切带特征。该区有5条金成矿带,其中有4条金成矿带与该区的4条韧性剪切带的分布位置一致。还认为很可能在三江金成矿带附近存在一条新的韧性剪切带,这为下一步研究桂东北地区韧性剪切带提供了一个新的重点靶区。

Through the analysis,this paper summarize Four recognized ductile shear zones in northeastern of Guangxi,including the west of Yuechengling Granite,Sanfang-Motianling ductile shear zone,Piaoli-Sanmen ductile shear zone and Mati-Sishui ductile shear zone which were formed in the Caledonian stage,and have the typical characteristics of ductile shear zone.There are five gold metallogenic belts in the area,and the distribution location of four gold metallogenic belts are consistent with the four ductile shear zones.The authors also think that it is a great possibility that there is a new ductile shear zone near the Sanjiang gold metallogenic belt.And this positive result provides a new and important target area for further study of ductile shear zones in northeastern Guangxi.