THE TECHNOLOGY FOR PRE-ENRICHMENT OF GOLD IN WATER AND ITS APPLICATION TO ORE-PROSPECTING WORK
ZHANG Hui-cong1, SU Mei-xia2, ZHENG Ping3, ZHAO Sou-zhi2, LI Shi-bao2
1. Inner Mongolia No.2 Institute of Geological Exploration, Tumd Right Banner 014100, China;
2. Inner Mongolia Institute of Geological Survey, Hohhot 010020, China;
3. Inner Mongolia No.7 Institute of Geological Exploration, Hohhot 010020, China
Based on tests of pre-enrichment gold in water, the authors chose two known gold mines with different natural landscape conditions and different genetic types in central Inner Mongolia to test the validity of this technology. A gold pre-enrichment method in water was established with polyurethane foam cleaned by hydrochloric acid. A quick and simple field method for gold pre-enrichment in water was developed. It is found that the gold content of water in the dry season is higher than that in the rainy season. Hydrochemical survey should be usually conducted in the dry season so as to guarantee the consistency of the results. Good gold anomalies were detected in the Donghuofang gold mine, the Laoyanghao gold mine and the peripheral Hejiaoyi belt, which shows that the method is effective. In the area of loosen thick overburden, the performance of the water chemistry survey led to the discovery of gold anomalies which could not be found by stream sediment survey and soil survey in the past, suggesting that the method discussed in the paper is useful in search for blind gold deposits.
张慧聪, 苏美霞, 郑萍, 赵锁志, 李世宝. 预富集水中金的方法技术研究及其在找矿中的应用[J]. 物探与化探, 2008, 32(2): 147-153.
ZHANG Hui-cong, SU Mei-xia, ZHENG Ping, ZHAO Sou-zhi, LI Shi-bao. THE TECHNOLOGY FOR PRE-ENRICHMENT OF GOLD IN WATER AND ITS APPLICATION TO ORE-PROSPECTING WORK. Geophysical and Geochemical Exploration, 2008, 32(2): 147-153.
[1] 博伊尔 R W.金的地球化学及金矿床[M].北京:地质出版社,1984.
[2] 丁天才,苏美霞,冷福荣,等.北方干旱区表生介质中金存在形式研究[J].中国地质,2001.
[3] 蒋瑞金.天然水中金的某些地球化学特征[J].地质与勘探,1993(2).
[4] Books R B,Chatterjee A K,Ryan D E.Determination of gold in nature waters at the parts-per-trillion (pg·cm-3) level Chem[J].GEOL., 1981,33∶163.
[5] Hamilton T W,Ellis J.Determination of gold in nature watwes by neutron activation-γ-spectrometry after preconcentration on activated charcoal[J].Analytica Chimica Acta 1983,148:225.
[6] 侯智慧.表面活化吸附体野外预富集——测定天然水中微量金[J].地质与勘探,1986,24(5).
[7] 熊昭春.聚氨酯塑料泡沫吸附机理探讨[J].地质实验室,1988,4(4).
[8] 薛光.泡沫塑料在金的分析与测试中的应用[J].黄金地质科技,1989,(2).
[9] 王继龙.金矿地球物理、地球化学勘查新方法新技术研究[M].北京:地质出版社,1996.
[10] 王继伦.中国金矿物探、化探方法技术的研究与应用[M].北京:地质出版社,1997.