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引用本文:张方方1 王建平1 刘冲昊1 曹瑞荣2 程建军2 杨永荣2 齐 峰2 王 罗2. 陕西双王金矿黄铁矿晶体形态和热电性特征对深部含矿性的预测[J]. 中国地质, 2013, 40(5): 1634-1643.
ZHANG Fang-fang1, WANG Jian-ping1, LIU Chong-hao1, CAO Rui-rong2, CHENG Jian-jun2, YANG Yong-rong2, QI Feng2, WANG Luo2. The crystal forms and thermoelectricity of pyrite from the Shuangwang gold deposit, Shaanxi Province and their applications to metallogenic prognosis[J]. Geology in China, 2013, 40(5): 1634-1643(in Chinese with English abstract).
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陕西双王金矿黄铁矿晶体形态和热电性特征对深部含矿性的预测
张方方1 王建平1 刘冲昊1 曹瑞荣2 程建军2 杨永荣2 齐 峰2 王 罗21,2
1.中国地质大学(北京)地质过程与矿产资源国家重点实验室,北京100083;2.陕西太白黄金矿业有限责任公司,陕西 太白716000
摘要:
提要:黄铁矿是一种重要的载金矿物,在金矿床的寻找和评价工作中,黄铁矿晶体形态及热电性标型的研究尤为重要。本文通过对陕西双王角砾岩型金矿床矿体KT8和矿体KT9中ZK18、ZK30和ZK40三个坑内钻孔进行系统采样,从矿物学角度研究主要载金矿物黄铁矿的晶型及热电性特征。结果表明:黄铁矿晶形较为简单,仅出现立方体、八面体、五角十二面体及其组合成的聚形,其中以{hk0}习性的晶形为主,总体上晶形出现率由高到低依次为{hk0}、{100}、{111}。黄铁矿热电导电型多以混合型为主,其中N型热电系数为-322.0~-1.7μV·℃-1,P型热电系数为1.7 ~346.7μV·℃-1,黄铁矿热电参数变化较大,估算矿体剥蚀率为53.67%~60.12%,指示矿体KT8中钻孔30和40、矿体KT9中钻孔18深部均具有较好的矿化前景。
关键词:  黄铁矿  晶体形态  热电性  双王金矿  陕西
DOI:
分类号:
基金项目:国家自然科学基金项目( 41030423、41272106)、中国黄金集团公司科技项目“陕西省太白县双王金矿床地质特征、成矿规律及找矿靶区再研究”共同资助。
The crystal forms and thermoelectricity of pyrite from the Shuangwang gold deposit, Shaanxi Province and their applications to metallogenic prognosis
ZHANG Fang-fang1, WANG Jian-ping1, LIU Chong-hao1, CAO Rui-rong2, CHENG Jian-jun2, YANG Yong-rong2, QI Feng2, WANG Luo21,2
1.State Key Laboratory of Geological Process and Mineral Resources, China University of Geosciences, Beijing 100083, China;2.Shaanxi Taibai Gold Mining Co., Ltd.,Taibai 716000 Shaanxi,China
Abstract:
Abstract:Pyrite is one of the most important gold-bearing minerals, and its crystal forms and thermoelectricity have important implications to the prospecting and evaluation of gold deposits. Based on systematic sampling from drill holes ZK18, ZK30 and ZK40 in the Shuangwang breccias-type gold deposit, the authors mainly studied the crystal forms and thermoelectricity of pyrite, and have reached the following conclusions. The crystal forms of pyrite are fairly simple, comprising cube, octahedron, pentagonal dodecahedron and their composite combination, with the main crystal habit being {hk0}. Overall, the number of crystal forms is in decreasing order of {hk0}, {100}, {111}. The thermoelectric conductive type of pyrite is mainly N-P type, with the thermoelectric coefficients of N-type pyrite ranging from -322.0 to-1.7μV·℃-1 and those of P-type pyrite ranging from 1.7 to 346.7μV·℃-1; the thermoelectric parameters of pyrite vary greatly; the degree of denudation varies from 53.67% to 60.12%. All of the above data indicate a better exploration prospect at the depth of drill holes ZK18, ZK30 and ZK40 in No. 9 and No. 8 ore bodies.
Key words:  pyrite  crystal form  thermoelectricity  Shuangwang gold deposit  Shaanxi