河南栾川马丢萤石矿床主矿体找矿前景分析

Prospecting Potential of the Main Orebody of Madiu Fluorite Deposit in Luanchuan County, Henan Province

马丢萤石矿位于华北陆块南缘合峪花岗岩基西缘,南部为栾川断裂,北部为马超营断裂,成矿地质条件良好。通过对区域、矿区、矿床地质特征等方面的研究,对马丢萤石矿主矿体Ⅱ_(1)、Ⅲ_(1)进行了矿体趋势预测和找矿前景分析。研究结果表明,马丢萤石矿主矿体Ⅱ_(1)在300m标高以浅,沿走向西南方向(225°)有延伸趋势,在标高300m以深在07~15勘探线之间,向北东向(45°)深部侧伏,有较大找矿潜力;Ⅲ_(1)矿体在标高420m以浅,沿走向有延伸趋势,延倾向400m以深,在312~302勘探线之间,向南西向(217°)深部侧伏,有较大找矿潜力。建议后期勘查工作在矿体厚度品位权值富集中心及周边开展探矿工程验证,以实现更大的找矿突破。

The MADIU fluorite deposit is located in the western margin of the Heyu Granite Base on the southern margin of the north China Block,with the Luanchuan County fault in the southern periphery and the machaoying fault in the north.Based on the summarization of geological characteristics for regional,mining and deposit,the trend prediction and prospecting prospect of the main orebody,Ⅱ_(1)and Ⅲ_(1)orebody of Madiu fluorite deposit are studied.The analysis results show that the main orebody Ⅱ_(1)of Madiu fluorite deposit is shallow at 300m elevation and has a trend of extension along the southwest direction (225°).At 300m elevation and deep at 07-15 exploration line,it is lateral to the north-east direction (45°) and has great prospecting potential;The Ⅲ_(1)orebody is shallow at 420m elevation,has a trend of extension along strike,and extends to a depth of 400m.It is lateral to the depth of the 312-304 exploration line in the south-west Direction (217°),and has great prospecting potential.It is suggested that the later exploration work should be carried out at the enrichment center of ore body thickness and grade and around it to verify the prospecting engineering so as to achieve a greater breakthrough in ore prospecting.