冀东地区稀有金属找矿新线索初探

New clues for rare metal prospecting in Eastern Hebei

通过对冀东地区进行详细的稀有金属矿产资源调查工作,在东部某岩体一带发现了若干新的稀有金属找矿线索,包括含Li、Rb伟晶岩与绢英岩化蚀变岩,含Nb、Th石英脉,含天河石伟晶岩等。根据野外地质调查及构造分析,认为该地区的局部隆升张应力为成矿提供了先决条件,后期新岩体的演化形成含矿热液,分别形成了含矿伟晶岩与含矿绢英岩化蚀变岩。新发现暗示该地区深部具有极好的稀有金属找矿前景。

Through the detailed investigation of rare metal mineral resources in Eastern Hebei,several new rare metal prospecting clues have been found in the Qingshankou rock mass in the East,including Li and Rb bearing pegmatite and sericitolite,Nb and Th bearing quartz vein,Tianhe bearing pegmatite etc.According to the field geological survey and structural analysis,it is considered that the local uplift tensile stress in this area provides a prerequisite for mineralization.In the later stage,the evolution of new rock mass formed ore bearing hydrothermal solution,forming ore bearing pegmatite and sericitolite respectively.The new discovery indicates that there is an excellent prospecting prospect for rare metals in the deep part of this area.