| 甘肃阳山金矿安坝矿段土壤中金的相态分析 |
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| 引用本文： | 孙文彧,祁士江,陆继龙,郝立波,赵玉岩,石厚礼,刘红艳.甘肃阳山金矿安坝矿段土壤中金的相态分析[J].世界地质,2014,33(1):112-119. |
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| 作者姓名： | 孙文彧 祁士江 陆继龙 郝立波 赵玉岩 石厚礼 刘红艳 |
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| 作者单位： | 1. 吉林大学 地球探测科学与技术学院，长春 130026; 2. 江西省地质矿产勘查开发局物化探大队，南昌 330002; 3. 吉林大学 地球科学学院，长春 130061 |
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| 基金项目： | 国土资源部行业专项“深部探测技术与实验研究”（SinoProbe-04-05-02） |
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| 摘 要： | 从甘肃阳山金矿安坝矿段土壤样品中,分离提取金的8种化学相态(硫化物结合态、游离态、有机质结合态、水溶态、铁锰氧化物结合态、离子交换态、碳酸盐结合态、残渣态),用石墨炉原子吸收法测定各相金含量,并查明其分布特征。结果表明:安坝矿段上覆土壤中,金主要以游离态、硫化物结合态、有机质结合态3种形式存在,分别占总量的3.3%~75.9%,0~37%,3.3%~26%。平均含量分别为105.5×10-9,30.5×10-9,25.3×10-9。土壤中游离态金相对含量的峰值和活动态金相对含量的谷值均出现在矿体上方,指示着已知金矿体的赋存部位。因此,可利用游离态金或活动态金作为类卡林型金矿的找矿指标。
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| 关 键 词： | 相态分析 金矿 土壤 阳山 甘肃省 |
Phase analysis on Au in the soil of Anba ore block,Yangshan gold deposit,Gansu Province |
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| SUN Wen-yu,QI Shi-jiang,LU Ji-long,HAO Li-bo,ZHAO Yu-yan,SHI Hou-li,LIU Hong-yan.Phase analysis on Au in the soil of Anba ore block,Yangshan gold deposit,Gansu Province[J].World Geology,2014,33(1):112-119. |
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| Authors: | SUN Wen-yu QI Shi-jiang LU Ji-long HAO Li-bo ZHAO Yu-yan SHI Hou-li LIU Hong-yan |
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| Institution: | 1. College of Geoexploration Science and Technology，Jilin University，Changchun 130026，China; 2. Geophysical and Geochemical Exploration Party，Jiangxi Bureau of Geology and Mineral Ｒesources，Nanchang 330002， China; 3. College of Earth Sciences，Jilin University，Changchun 130061，China |
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| Abstract: | From the samples of soil in Anba ore block of Yangshan gold deposit,we separated and extracted the eight forms （free state,sulfide bound,organic matter bound,carbonate bound,Fe-Mn oxide bound,watersoluble,exchangeable and residual form） of gold,analyzed the contents of the eight forms of gold by the GFAAS,and found out their distributions.The results show that gold mainly existed in free state,sulfide bound and organic matter bound,which are 3.3％ ～75.9％,0 ～37％,3.3％ ～26％,in percentage of the whole contents,respectively,and the average content of gold is 105.5 × 10-9,30.5 × 10-9,25.3 × 10-9,accordingly.The peak of the relative content for free state and the minimum of the relative content for mobile forms both come above the ore-body indicating where the ore-body exists.Therefore,we can use the gold in the free state or mobile forms as the key to search the carlin-like deposits. |
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| Keywords: | phase analysis gold deposit soil Yangshan Gansu Province |
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