陇山地区多金属矿地质特征及成矿条件分析

GEOLOGY AND MINERALZATION OF POLYMETALLIC ORES IN THE LONGSHAN AREA

研究区位于北祁连Cu-Pb-Zn-Fe-Cr-Au-Ag成矿带,区域成矿地质条件优越,矿产资源丰富。已发现有陈家庙超大型磁铁矿、上官厂铅锌矿、扫帚滩金矿、三桥铜矿、炮石梁铜钼矿及数十处矿化点,赋矿围岩均为下元古界陇山岩群。本文试图通过对比分析区域上已发现典型矿床,总结其控矿因素及成矿规律,为本区地质找矿提供找矿方向。

The study area lies in the Cu-Pb-Zn-Fe-Cr-Au-Ag metallogenic belt at the northern Qilian mountain,where the geological conditions for mineralization was favourable and abundant mineral resources occur.In the Lower Longshan rock group,over tens of mineral occurrences and metal deposits are discovered,including the super large-sized magnetite deposit in Chenjiamiao,lead-zinc deposits in Shangguanchang,gold deposits in Saozhutan,copper deposits in Sanqiao and copper-molybdenum deposits in Paoshiliang.This paper attempts to compare and analyze the typical ore deposits in the region,sum up the ore-controlling factors and metallogenic rules for providing the ore prospecting direction in this area.