新疆清水泉金矿床控矿因素及找矿标志

The Ore-controlling Factors and Prospecting Indicator of Qingshuiquan Gold Deposit in Xinjiang Province

清水泉金矿床位于新疆东准噶尔地区重要的金及多金属成矿带——卡拉麦里成矿带西段,产于清水—苏吉泉大断裂与卡拉麦里深断裂之间。区内构造活动强烈,次级断裂及裂隙发育,构成以NW向为主的强蚀变碎裂岩带;岩浆活动频繁,老鸦泉岩体呈岩基状分布于区内北部,构成金属元素迁移活化富集的强大热源;出露地层主要为中石炭统清水组浅变质岩系,并均已接受后期强烈的变形变质作用,发育塑性流动变形石香肠和剪切褶皱等构造形迹。清水泉金矿床类型属破碎蚀变岩夹石英脉型,矿体呈带状和透镜状赋存于与近EW向主构造体系相交的次级构造组中,富集不均匀,矿体形态、分布和矿化富集受地层、构造密切控制,并与岩浆活动热源有关。含金地质体与构造、脉岩分布及矿化蚀变是主要的找矿标志。

Qingshuiquan gold deposit is located in the west of gold and polymetallic ore belt,Kalamaili metallogenic belt in eastern Junggar, and outputted between Qingshui-Sujiquan big break and Kalamaili deep faults. In this region,the violent tectonic activities and the secondary faults and fracture development which constitute a strongly altered cataclasite zone mainly along northwest direction.Magmatic activity is frequent.Laoyaquan rock is distributed in the north and showed rock foundation appearance ,which is powerful heat source for the migration of activated metals enrichment in the region.Outcropping strata are mainly middle Carboniferous Qingshui Formation which is a shallow metamorphic rock,has accepted the latter strongly deformed and metamorphosed,and developmental the bondin and shear fold.Qingshuiquan gold deposit is a broken altered rock-quartz vein type deposits.Ore bodies are banded and lenticular which occur in the secondary structure group intersected at nearly EW main structural system.Ore enrichment is uneven,its morphology,distribution and mineralization enrichment controlled by the stratigraphy and structure closely,and also related to the magmatic activity.h is the main prospecting for the gold-bearing geological, the tectonics and dikes and the alteration.