玲珑金矿黄铁矿热电性与微量元素标型及深部金矿化评价  

Thermoelectricity and Trace Elements Typomorphism of Pyrite and Evaluation of Deep Gold Mineralization in the Linglong Gold Deposit

作　　者：于洪军[1,2] 申俊峰[1,2] 王磊[3] 马广刚[1,2] 刘艳[1,2] 

机构地区：[1]中国地质大学地质过程与矿产资源国家重点实验室,北京100083 [2]中国地质大学深部过程与探测技术教育部重点实验室,北京100083 [3]中国地质调查局西安地质调查中心,陕西西安710054

出　　处：《地质与勘探》2011年第4期615-623,共9页Geology and Exploration

基　　金：危机矿山接替资源找矿项目(编号20089937)资助的成果

摘　　要：在前人对玲珑金矿矿体浅部的研究基础之上,通过对矿体深部黄铁矿的热电性测试与分析,得出:西山矿区380m～-90m中段,黄铁矿导型以P-N型(空穴型-电子型导电)为主;东山矿区50m～-850m标高范围内,黄铁矿导型以P-N或N-P(电子型-空穴型导电)混合型为主。东、西山矿区的P型出现率在垂向上呈高-低-高的韵律式脉冲变化,表明东、西山矿区深部均具有不同的找矿潜力。利用黄铁矿热电性填图,结合微量元素成分的三角图解,进一步探讨了东山深部的金矿化远景,尤其是-850m标高以下,43线到83线之间P型出现率出现高值区,说明该区域内矿化程度较好,是找矿的有利位置。Based on previous studies of shallow ore bodies in the Linglong gold deposit ,this work has made a test and analysis of thermoelectricity of pyrite from deep ore bodies. We conclude that the pyrite in the middle section from 380m to -90m in the Xishan ore area is dominated by the P-N type and by the P-N or mixture of P and N from 50m to -850m in the Dongshan ore area. Furthermore, the vertical variations of occurrence rates of P-type in the Xishan and Dongshan ore area show a rhythmic feature of pulses with high-low-high values, which indicates that different exploring prospects would be expectable at depth in both the Xishan and Dongshan ore area. We have made a further discussion about the mineralization prospect at depth in the Dongshan ore area by using thermoelectric mapping and triangle diagrams of trace elements of pyrite. In combination with the phenomena that the occurrence rates of the P-type are higher between line. 43 and line. 83 under -850m, it is suggested that this area is a good exploration target with better mineralization.

关 键 词：黄铁矿 热电性 微量元素 金矿化 玲珑金矿 

分 类 号：P618.51[天文地球—矿床学]