河南省上宫金矿矿床成因及控矿因素研究

以上宫金矿为例，研究了矿区地层、构造、岩浆岩、变质作用及围岩蚀变、物探等地质特征。分析了矿床地质特征，矿床属构造蚀变岩型，矿体总体呈脉状、板状。赋矿围岩为太华群石板沟岩组和古元古界龙潭沟岩组及熊耳群许山组地层；探讨了成矿规律和找矿标志，得出矿床的成因类型为中低温岩浆期后热液—构造蚀变岩型金矿床。矿床的找矿标志主要为构造—岩浆岩标志、围岩蚀变标志、地层标志等；圈定了矿体，自西至东分别在西青岗坪、干树、上宫、虎沟、七里坪5个矿段，圈出金矿脉55条。研究为今后的矿山生产开发利用和探矿提供了可靠依据。

Study on genesis and ore-controlling factors of Shanggong gold deposit in Henan Province

Taking Shanggong gold deposit as an example，the geological characteristics of strata，structure，magmatic rock，metamorphism，wall rock alteration and geophysical exploration in the mining area have been studied.Based on the analysis of the geological characteristics of the deposit，the deposit belongs to the tectonic altered rock type，and the ore body is generally in vein and plate shape.The host rocks are Shibangou Formation of Taihua Group，Longtangou Formation of Paleoproterozoic and Xushan Formation of Xionger Group.The metallogenic regularity and prospecting criteria are discussed，and it is concluded that the genetic type of the deposit is the hydrothermal tectonic altered rock type gold deposit after the middle low temperature magmatic period.The ore prospecting indicators of the deposit are mainly tectonic magmatic rock indicators，wall rock alteration indicators，stratigraphic indicators，etc.The ore bodies have been delineated.From west to east，55 gold veins have been delineated in five ore blocks，namely Xiqinggangping，Ganshu，Shanggong，Hugou and Qiliping.The study provides a reliable basis for future mine production，development，utilization and exploration.