达茂旗查汉此老萤石矿矿床特征及矿床成因探讨

Discussion on the characteristics and genesis of the Chahancilao Fluorite Deposit in Damao Banner

萤石是内蒙古优势矿种之一,具有良好的成矿潜力和找矿前景。通过在查汉此老萤石矿野外工作和综合研究分析,总结矿床特征,初步认为萤石矿受断裂构造控制,成因为热液成因,即产于断裂构造中的中低温热液充填型脉状萤石矿,其主要成矿时代为晚三叠纪,最终形成时代为白垩纪;而多种晶型共生的构造类型表明具有多期次成矿的特征。

Fluorite is one of the dominant ore species in Inner Mongolia,which has good ore-forming potential and prospecting prospect.Based on the field work and comprehensive study of the fluorite deposit in Chahancilao area,the characteristics of the deposit are summarized,and it is considered that the fluorite deposit is controlled by fracture structure and is of hydrothermal origin,the main metallogenic epoch of the vein-type fluorite deposit is Late Triassic,and the final formation epoch is cretaceous,and the structural types of multiple crystal-type intergrowth show the characteristics of multi-stage mineralization.