内蒙古林西县水头萤石矿床地质特征、类型及其开发利用价值

张彦生; 王亮; 高永璋

doi:10.12029/gc20200715001

内蒙古林西县水头萤石矿床地质特征、类型及其开发利用价值

Geological characteristics, types and development and utilization value of Shuitou fluorite deposit in Linxi, Inner Mongolia

摘要

摘要:
研究目的 为了充分合理地开发利用内蒙古水头萤石矿，本文对其矿床地质特征、成因及矿床类型进行了系统的分析。
研究方法 本文基于对水头萤石矿床地质特征分析、矿床成因探讨、矿石开发利用现状及潜力分析研究，总结其矿床类型及进一步开发利用价值。
研究结果 水头萤石矿床形成于早白垩世，矿体主要赋存于上二叠统林西组凝灰质粉砂岩中，并严格受断裂构造控制，矿床类型为中低温热液充填型脉状萤石矿床；矿区保有资源/储量矿石量1700.48 kt，CaF₂平均品位62.27%，CaF₂资源量1058864 t，为大型萤石矿床。光谱分析显示矿石中有（益）用组分为CaF₂，矿石可浮性较好，通过1次粗选、2次扫选、4次精选可获得CaF₂品位97.56%，回收率87.07%的萤石精矿。
结论综合以上分析表明，水头萤石矿床为为断裂控矿、中低温热液充填型脉状萤石矿床。选矿试验表明，水头萤石矿石可浮性较好，属于易选矿石，本矿具有很好的开发利用价值。

Abstract:
This paper is the result of mineral exploration engineering.
Objective The geological characteristics, genesis and deposit types of Shuitou fluorite deposit are systematically studied to fully and rationally develop and utilize its resources.
Methods Based on the analysis of the geological characteristics, ore genesis and current situation of ore development-utilization, we summarized ore types and development-utilization value of Shuitou fluorite deposit.
Results Shuitou large fluorite deposit was formed in the early Cretaceous, which ore bodies mainly existed in the upper Permain Linxi Formation tuffaceous siltstone. It's a fault-control, medium-low-temperature hydrothermal, fracture-filling type deposit. The reserve resources/reserves of fluorite ores are 1700.48 kt, with a CaF₂ average grade 62.27% and CaF₂ mineral content of 1058864 t. The spectral analysis shows that useful component is CaF₂, and the ore has good floatability and belongs to the easy separation ore. Fluorite concentrate with CaF₂ grade 97.56% and recovery rate 87.07% can be obtained by one state rougher, two states scavenger and four states cleaner.
Conclusions The comprehensive analysis indicate that Shuitou large fluorite deposit has good development-utilization value.

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