摘要
阿尔及利亚金矿主要分布于南部地区Hoggar地盾.受泛非运动影响,Hoggar地盾与西非克拉通挤压碰撞,区内金矿沿南北向断裂带分布.Tin-Zakri金矿位于Hoggar地盾近南北向Tiririnienne成矿带上,受区内北西向主构造控制.目前发现与矿化有关的矿化蚀变带30条,其中规模较大的有2条(27、30号脉),矿体赋存在片理化岩带内,呈北西向或近南北向脉状展布,以石英脉的形式断续分布在韧性剪切带中.围岩蚀变特征明显,绢云母化为金矿的直接找矿标志,绿泥石化片理化带是金矿找矿的重要线索.
The gold deposits of Algeria occur mainly in the Hoggar shield. Affected by the Pan-African movement, the gold deposits are distributed along north-south-trending fault belt. The Tin-Zakri deposit, which located in the north-south Tiririnienne metallogenic belt, is controlled by the NW-trending faults. Based on geological survey, 30 alteration zones with mineralization are mapped, of which two metallization-alteration zones （Nos. 27 and 30） are main ore bodies. The occurrence of ore bodies are controlled by NW-and N-S-trending schistosity belts, and distributed in ductile shear zone as quartz veins. The sericitization is direct prospecting indicator, while the chloritization is important clue for gold mineralization.
出处
《地质与资源》
CAS
2016年第1期69-73,共5页
Geology and Resources
基金
财政部
国土资源部"国家海外矿产资源风险勘查项目"(编号2011[20B0]6000102)
