摘要
必鲁甘干矿区位于天山—阴山内蒙地槽华力西晚期褶皱带阿巴嘎旗复向斜中段,查干敖包(必鲁甘干)倒转背斜核部。区内NE向断裂构造控制了印支期花岗斑岩体及特大型斑岩型铜钼矿床的分布。通过勘探查明主矿体延长2 300m,延深1 850m,平均厚度46.24m。铜钼矿赋存于花岗斑岩与硅质角岩内外接触带,赋矿岩石主要为花岗斑岩和硅质角岩。矿体形态以透镜状—似层状为主,属斑岩型铜钼矿。
The Bilugangan prospecting area is located in the middle part of Abag Banner Synclinorium of the fold belt formed during Late Variscan stage in Tianshan-Yinshan-Inner Mongolia Geosyncline. In this area, the distribution of Indosinian rock mass of granite porphyry and super-large porphyry-type copper-molybdenum deposit is controlled by NE faults. Through exploration, it has been proved that the main orebody extends to a length of 2 300m, and a depth of 1850m, with its width averaging 46.24m. The copper-molybdenum ore occurs in the inner and outer contact zones of granite porphyry and siliceous hornfels, and its host rock is mainly granite porphyry and siliceous hornfels. The forms of the orebody are mainly lentoid and bedded.
出处
《甘肃地质》
2014年第1期52-59,共8页
Gansu Geology
关键词
必鲁甘干
NE向断裂
花岗斑岩
硅质角岩
蚀变分带
斑岩型铜钼矿
Bilugangan
NE fauh, granite porphyry
siliceous hornfels
alteration zoning
porphyry-type copper-molybdenum ore
