This paper is the result of mineral exploration engineering.[Objective]Fluorite is an important mineral resource in modern industries,and it is listed as the top priority of nonmetallic mineral prospecting in Henan Province.In recent years,several geological prospecting units in Henan Province have been engaged in prospecting fluorite in the Heyu area of Luanchuan County,and the Madiu fluorite deposit is the first proven large deposit,with an estimated amount of 8.84 million tons of fluorite ore and 4.76 million tons of CaF2 mineral.The average grade of CaF2 is 53.83％.The east-west ends of the ore body are not closed along the strike.Therefore,summarizing the geological characteristics is of great significance for guiding the prospecting activities in this area.[Methods]Based on the general and detailed investigation of the Madiu fluorite deposit in the last five years,the metallogenic geological conditions,geological characteristics,quality characteristics,and prospecting indicators are systematically summarized.[Results]The Madiu fluorite deposit is the largest single fluorite ore body in Henan and its surrounding provinces.There are many ore veins of different sizes,which are equal spaced along the trend and are nearly parallel along the strike.There are also many fluorite ore bodies scattered around.[Conclusions]The Madiu fluorite mineralization is related to granites and NW-trending structures,and the deposit type is medium-low temperature vein deposit with fissure filling in silicate rock.
关键词
萤石矿/矿床地质特征/找矿潜力/矿产勘查工程/栾川县马丢/河南省
Key words
fluorite deposit/geological characteristics/prospecting potential/mineral exploration engineering/Madiu of Luanchuan County/Henan Province
维普
万方数据