海沟金矿28#脉深部隐伏矿体地球化学预测  

Geochemical prediction on concealed ore-body in deep 28# vein of Haigou gold deposit

作　　者：李绪俊[1] 范振华[1] 范文亮[1] 任山峰 

机构地区：[1]吉林大学地球科学学院,长春130026 [2]吉林省海沟黄金矿业有限责任公司,吉林安图133617

出　　处：《世界地质》2011年第3期359-367,共9页World Geology

基　　金：中国地质调查局资[2010]矿评(01-20-06);吉林省科技发展计划重点项目(20090479)联合资助

摘　　要：海沟金矿28#脉单脉储量在30 t以上。矿脉地球化学研究表明,与Au有关的12个元素可划分为5个矿化因子。F1、F2和F4因子同时存在的高值区表明成矿晕在空间上迭加,成矿具多阶段性,深部有成矿远景;单一F4高值区代表矿体根部位置;F3和F5高值同时出现表明高值部位属无矿间隔,近距离内无隐伏矿体出现。综合研究表明,28#脉39～71线之间14中段以下具有较好的成矿远景,不仅已知矿体向下有进一步的延深,深部还可能出现新的隐伏矿体。15～29线之间10中段以下的部位也有成矿显示,有必要开展新一轮的地质探矿工作。The reserves of 28# vein of Haigou gold deposit are more than 30 t. Geochemical study shows that the 12 trace elements related with gold mineralization can be divided into 5 metallogenic factors （ element assemblages）. The high value area which F1, F2 and F4 together existed indicates the metallogenic halo overlaps in space with multiple stages of gold mineralization, and high mineralization potential in deep. The single high value area of F4 represents the location of ore body root, while the high values of F3 and F5 show the high value areas belong to intervals of barren sectors. Comprehensive geochemical studies show the high prospection potential below the 14th section between 39 -71 lines of 28# vein, not only the known ore body has further extension, but also may have appearrence of new concealed ore body in deep. It is necessary to do prospecting for the mineralization below the 10th level between 15 -29 lines.

关 键 词：隐伏矿体 地球化学预测 富集序列 海沟金矿 

分 类 号：P618.51[天文地球—矿床学] P595[天文地球—地质学]