敦煌北山金矿梭子山矿段深部矿化富集成因探讨
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摘要
根据北山金矿梭子矿段金矿床的产出特征和规律,该矿段矿床兼具石英脉型和蚀变岩型矿化特征,对北山地区深地探测找矿项目具有新的指导作用。研究表明印支期中酸性岩浆为成矿提供矿源,与主构造垂直～近垂直的高角度张性～张扭性断裂系统为矿体提供赋矿空间,根据矿体赋矿岩石及与金窝子金矿床对比分析。推测成矿时代为印支期。
According to the characteristics and rules of the occurrence of zumzi gold deposit in beishan gold deposit, the deposit has both quartz vein type and alteration rock type mineralization characteristics, which has a new guiding role for the deep exploration and prospecting projects in beishan area. The results show that the indo-chinese acidic magma provides ore source for mineralization, and the high-angle extension-tension-torsion fault system perpendicular to the main structure provides ore host space. The metallogenic age is presumed to be indosinian.
According to the characteristics and rules of the occurrence of zumzi gold deposit in beishan gold deposit, the deposit has both quartz vein type and alteration rock type mineralization characteristics, which has a new guiding role for the deep exploration and prospecting projects in beishan area. The results show that the indo-chinese acidic magma provides ore source for mineralization, and the high-angle extension-tension-torsion fault system perpendicular to the main structure provides ore host space. The metallogenic age is presumed to be indosinian.
引文
[1]李世龙,陈耀宇,薛同利等，敦煌金滩子金矿地质特征及找矿前景分析[J]，甘肃地质，2017,26(3),12-17.
[2]郭晓东,李强之,金宝义等，北山地区金和铜等成矿规律及找矿方向探讨[J]，黄金地质，2003,9(2),35-37.
[3]聂凤军，江思宏，白大明等，北山中南带海西一印支期岩浆活动与金的成矿作用[J]，地球学报，2003,24(5),415-422.
[2]郭晓东,李强之,金宝义等，北山地区金和铜等成矿规律及找矿方向探讨[J]，黄金地质，2003,9(2),35-37.
[3]聂凤军，江思宏，白大明等，北山中南带海西一印支期岩浆活动与金的成矿作用[J]，地球学报，2003,24(5),415-422.