长寿山铁矿位于张广才蛉西坡,是个小型矿床。矿区西南出露有花岗斑岩,南及东南为细粒自岗质花岗岩。磁铁矿呈不连续脉状透镜体斌存于石栩石透辉石夕卡岩中。前人多认为这是一个与白岗质花岗岩有关的热液交代矿床或夕卡岩矿床。根据区域资料分析和野外地质观察,我们认为该矿是与火山作用有关的热液矿床。在张广才岭西北坡,集中分布有中生代陆相火山岩。火山 Changshoushan iron mine is located in the west slope of Zhang Guangcai, is a small deposit. Granite porphyry is exposed in the southwest of the mining area and fine granitic and self-possessed granite in the south and southeast. Magnetite was discontinuous vein-shaped lens body bin stone stored in dolomite diopside skarn. Many believe it is a hydrothermal metamorphic ore deposit or skarn deposit related to the Baigang granite. Based on regional data analysis and field geologic observations, we consider this mine to be a volcanic-related hydrothermal deposit. On the northwestern slope of Zhangguangcai Ridge, Mesozoic continental volcanic rocks are concentratedly distributed. volcanic