摘要
脉状矿床是重要的矿床类型之一 ,其矿体往往赋存于断裂构造之中。甚低频电磁法 (VLF_EM )以其成本低廉、轻便高效 ,以及对脉状矿 (化 )体特有的灵敏性而具有特色。文章通过对以脉状形式产出的金、铅锌 (银 )及萤石矿的VLF_EM找矿勘查实例 ,探讨了VLF_EM对这类矿床勘查的有效性和优越性 。
The deposit described in this paper is one of the most important types of ore deposit. In general, the spatial distribution of the ore veins in this deposit is controlled by fracture zones. Geophysical investigation indicates that the VLF_EM methods are suitable for exploration of this type of ore deposits in that they can be used precisely, conveniently and economically during the regional evaluation of the vein ore deposits, especially in the areas covered with overburden. The principles and application procedures of the VLF_EM methods have been described in detail in this paper. Meanwhile, Cases are given concerning the successful exploration of gold_ and lead_zinc_silver_bearing veins as well as fluorite veins distributed in Inner Mongolia and Yunnan. In addition, all the geophysical anomalies delineated by the VLF_EM methods have been proved to be valuable. The exploration model derived from the VLF_EM methods is also advanced.
出处
《矿床地质》
CAS
CSCD
北大核心
2002年第4期408-413,共6页
Mineral Deposits
基金
国家地质调查项目 (编号 :K1.3 .3 2 )的资助
关键词
固体地球物理学
甚低频电磁法
找矿方法
脉状矿床
金矿床
铅锌矿床
萤石矿床
银矿床
solid_earth physics, very low frequency electromagnetic methods (VLF_EM), vein deposits, gold deposits, lead_zinc (silver) deposits, fluorite deposits.
