陕西省双王金矿床五号矿体黄铁矿标型特征研究

双王金矿是产于西秦岭泥盆系地层中的一个大型低品位角砾岩型金矿。对其主要载金矿物黄铁矿进行的标型特征研究表明，五号矿体（KT5）中黄铁矿以舍金较好的{111}和{hk0}习性为主，占75％，{100}习性占25％。晶体形态分值图反映出KT5黄铁矿含金性为西高东低，有向79线以西延伸的趋势。黄铁矿热电系数变化主要集中在-250～250μV／℃范围内，整个矿区主要以N—P混合型黄铁矿为主，P型率在矿体西部向下有增大的趋势。头晕元素S1）、Ba从上到下为先降后增，在75线和71线间出现明显头晕反转现象，并且总体有向79线以西富集的趋势。近矿晕元素Cu、Pb、Zn由上到下有向75线以下、79线以西富集的...

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Published in地质与勘探 Vol. 48; no. 1; pp. 76 - 84
Main Author 曾祥涛 王建平 刘必政 刘冲昊 曹瑞荣 高创 王罗 张国刚 赵新江 齐峰
Format Journal Article
LanguageChinese
Published 2012
Subjects
双王金矿
标型特征
陕西
黄铁矿
Online AccessGet full text
ISSN0495-5331

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Abstract 双王金矿是产于西秦岭泥盆系地层中的一个大型低品位角砾岩型金矿。对其主要载金矿物黄铁矿进行的标型特征研究表明，五号矿体（KT5）中黄铁矿以舍金较好的{111}和{hk0}习性为主，占75％，{100}习性占25％。晶体形态分值图反映出KT5黄铁矿含金性为西高东低，有向79线以西延伸的趋势。黄铁矿热电系数变化主要集中在-250～250μV／℃范围内，整个矿区主要以N—P混合型黄铁矿为主，P型率在矿体西部向下有增大的趋势。头晕元素S1）、Ba从上到下为先降后增，在75线和71线间出现明显头晕反转现象，并且总体有向79线以西富集的趋势。近矿晕元素Cu、Pb、Zn由上到下有向75线以下、79线以西富集的趋势。尾晕元素Bi由上到下呈现降低的趋势，且在57～65线之间与近矿晕元素Pb有明显的叠加，指示KT5在此区间接近矿化底端。而Mo、Co元素在73—77线之间富集，且与前缘晕共存，指示深部可能有盲矿体。
AbstractList 双王金矿是产于西秦岭泥盆系地层中的一个大型低品位角砾岩型金矿。对其主要载金矿物黄铁矿进行的标型特征研究表明，五号矿体（KT5）中黄铁矿以舍金较好的{111}和{hk0}习性为主，占75％，{100}习性占25％。晶体形态分值图反映出KT5黄铁矿含金性为西高东低，有向79线以西延伸的趋势。黄铁矿热电系数变化主要集中在-250～250μV／℃范围内，整个矿区主要以N—P混合型黄铁矿为主，P型率在矿体西部向下有增大的趋势。头晕元素S1）、Ba从上到下为先降后增，在75线和71线间出现明显头晕反转现象，并且总体有向79线以西富集的趋势。近矿晕元素Cu、Pb、Zn由上到下有向75线以下、79线以西富集的趋势。尾晕元素Bi由上到下呈现降低的趋势，且在57～65线之间与近矿晕元素Pb有明显的叠加，指示KT5在此区间接近矿化底端。而Mo、Co元素在73—77线之间富集，且与前缘晕共存，指示深部可能有盲矿体。
Author 曾祥涛 王建平 刘必政 刘冲昊 曹瑞荣 高创 王罗 张国刚 赵新江 齐峰
AuthorAffiliation 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 陕西太白黄金矿业有限责任公司,陕西宝鸡721607
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DocumentTitleAlternate Typomorphic Characteristics of Pyrite of the No. 5 Ore Body in the Shuangwang Gold Deposit, Shanxi Province
EndPage 84
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Notes pyrite, typomorphic characteristic, Shuangwang gold deposit, Shanxi Province
The Shuangwang gold deposit,located in Devonian stratum of the West Qinling, Shanxi Province, is a low-grade large breccia-type gold deposit. The typomorphic characteristics of pyrite ,which is the main gold-beating mineral, are studied in detail in this paper. The main crystal forms of pyrite are the { 111} and { hk0}, which accounts for 75 %. While the crystal form of 11001 is 25 %. The diagram of crystal form values exhibit the gold potential- ity increasing from east to west,with the trend extending to the west of exploration line No. 79. The thermoelectric coefficients of the pyrites range from - 250 to 250μV/℃. The thermoelectric conductive type of pyrites is mainly N-P type with the characteristics of N type and P type. The P type increases at the low part of the west ore body. The head halo elements Sb and Ba first decreases and then increases from up to down, and appears significant head halo inversion between exploration lin
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PublicationTitle 地质与勘探
PublicationTitleAlternate Geology and Prospecting
PublicationYear 2012
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Snippet 双王金矿是产于西秦岭泥盆系地层中的一个大型低品位角砾岩型金矿。对其主要载金矿物黄铁矿进行的标型特征研究表明，五号矿体（KT5）中黄铁矿以舍金较好的{111}和{hk0}习性...
SourceID chongqing
SourceType Publisher
StartPage 76
SubjectTerms 双王金矿
标型特征
陕西
黄铁矿
Title 陕西省双王金矿床五号矿体黄铁矿标型特征研究
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