内蒙古白龙山萤石矿矿床地质特征和成矿规律浅析

摘要

内蒙古白龙山萤石矿床产于二叠系上统方山口组(P3f)片理化流纹岩中,受构造破碎带控制,呈脉状产出,空间分布受北东向断裂控制,矿体有“成带分布,成群出现,分段集中”的特点.成矿时间上表现为海西晚期沉积初步富集了萤石,后燕山期岩浆活动的影响,进一步形成萤石富矿.%Bailongshan fluorite deposits are located in Permian Fangshankou group (P3f) foliated rhyolite by tectonic fracture zone control.In vein output,the spatial distribution is of the north trending in faults control with ore-body characteristic "a band profile,they occur in groups or sub-concentration".Mineralization on time performance presents as Hercynian sedimentary state in preliminary enrichment of fluorite.It will form itself in the impact of Yanshanian magmatism of fluorite bonanza at the later stages.