吉林桦甸菜抢子金矿深部构造特征与矿体预测──以21号主矿脉成功预测为例  

The structure characteristics and ore-prospecting of deep department in Caiqiangzi gold deposit,Jilin province──with No.21 vien as an example

作　　者：谢海东[1] 王建新[1] 田莉玉[2] 臧兴运[1] 张彦艳[1] 

机构地区：[1]吉林大学地球科学学院 [2]吉林大学试验中心

出　　处：《黄金》2007年第2期12-16,共5页Gold

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.

关 键 词：菜抢子金矿床 控矿条件 矿体预测 深部构造特征 

分 类 号：P618.51[天文地球—矿床学]