摘要
21号脉是菜抢子金矿床的主矿脉,通过对21号脉控矿条件及控矿规律的研究认为,21号脉严格受构造控制,其复杂性决定了矿脉空间形态具分支复合、尖灭再现的特点,平行矿脉较多且空间位置相对稳定;空间上矿体与辉绿岩、花岗斑岩等脉岩关系密切。后期滑脱断层对主矿体的破坏较大。据此在-260m、-300m中段通过调查研究和指导工程验证,成功地发现了21号脉主矿体,并在-300m中段进行了矿体的深部预测。
No. 21 vein is the main ore body of Caiqiangzi gold deposit. By studying the ore-controlling conditions and rules of No. 21 vein, it is revealed that No. 21 vein is strictly controlled by geology structures and the complexity of structures results in the spatial modality characteristics of branch-compound and ore bodies＇ reappearing after disappearing. No. 21 vein has many parallel veins whose spatial positions are relatively stabile. The ore bodies have affinitive relation in space with vein rock of diabase and granite-porphyry and the main ore body is severely damaged by later decollement-fracture. According to above analysis, the main ore body of No. 21 vein is found successfully in -260m and -300m midsections by investigation and engineering verification. The ore body prognosis in -300m midsection is also successfully accomplished.
出处
《黄金》
CAS
北大核心
2007年第2期12-16,共5页
Gold
关键词
菜抢子金矿床
控矿条件
矿体预测
深部构造特征
Caiqiangzi gold deposit
ore-controlling condition
ore body prognosis
structure characteristic of deep department
