摘要
黑狮大山钨矿床位于青海省柴达木盆地西北缘冷湖地区,阿尔金山主脊南坡。大地构造位于柴达木盆地北缘造山带西段,祁连造山带和柴达木盆地结合部位。矿体赋存于早奥陶世花岗闪长岩与古元古界达肯大坂岩群碳酸盐岩接触的矽卡岩带中,在与接触带构造相连的次级裂隙、节理裂隙及片理化带中可见星点状、浸染状矿体分布。通过工作圈定出4条矽卡岩带,并在矽卡岩带中圈定出5条钨矿体,通过研究认为黑狮大山矿床成因类型为热液交代矽卡岩型钨矿床。
Heishidashan Tungsten Mine is located in Lenghu area,northwest margin of Qaidam Basin,Qinghai Province.It is on the south slope of the main ridge of Altun Mountain.The mine is located in the western segment of the orogenic belt in the northern margin of Qaidam Basin and the combination of Qilian orogenic belt and Qaidam Basin.Orebodies occur in the skarn belt where the Early Ordovician granodiorite contacts the carbonate rocks of the Paleoproterozoic Dakendaban Group.The distribution of stellar-shaped and disseminated orebodies can be seen in the secondary fissure,joint fissure and foliated zone are connected with the structure of the contact zone.In this paper,four skarn belts are defined by working and five tungsten bodies are delineated in the skarn belts.The genetic type of Heishidanshan deposit is hydrothermal metasomatic skarn type tungsten deposit.
作者
张灵桧
马文杰
ZHANG Linghui;MA Wenjie(The Fifth Geological Exploration Institute of Qinghai Province,Xining,Qinghai 810000,China)
出处
《中国锰业》
2023年第6期61-66,共6页
China Manganese Industry
基金
青海省省级地质勘查专项资金项目(编号:2022013027qj017)。
