内蒙古赤峰老府金多金属矿区地质、地球化学特征

Inner Mongolia Chifeng Laofujin Polymetallic Mining Area Geological,Geochemical Characteristics

全面研究和总结内蒙古赤峰老府金多金属矿区地球化学特征、矿体特征,探讨了其成矿机制并分析了矿床的控矿条件及找矿标志,对矿区今后的找矿工作有一定的指导意义。基本过程包括:(1)对区域内土壤地球化学元素进行数理统计分析;(2)探讨矿石的结构特点和矿体的构造特点,从而分析矿床的控矿条件与找矿标志。得出结论如下:(1)区内大面积出露太古界建平群地层为金矿的形成提供了物质来源;(2)燕山期大面积的岩浆活动为金矿的形成提供了热动力条件;(3)北东向断裂构造控制了矿体的产出。

On the basis of a comprehensive study and summarize the geochemical characteristics and ore body characteristics of the Laofu gold polymetallic ore deposit in Chifeng city, Inner Mongolia province, the ore-forming mechanism of the ore deposits is discussed. In addition, analysis on the ore-controlling conditions and prospecting marks, the mining area of future prospecting work has some significance. The basic content including ： （ 1 ） Analysis on the area soil geochemical element by mathematical statistics. （2） Discuss the structure characteristics of the ore and the structure of the ore body characteristics, thereby analysis of the ore-controlling conditions and ore prospec- ting marks. Conclusions are as follows ： （ 1 ） In the region, large area of the exposed jianping stratum of Archean group, provide the material sources for the formation of gold ore ; （2） Large-scale of the magma activity in theYans- hanian movement, Provide thermal dynamic conditions for the formation of gold ore ; （3） The northeast direction of fracture structure control the ore body form.