| Simulating Experiments on Enrichment of Gold by Bacteria and Their Geochemical Significance |
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| 作者姓名： | 张景荣 陆建军 |
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| 作者单位： | [1]DepartmentofEarthSciences,NanjingUniversity,Nanjing210093 [2]DepartmentofEarthSciences,NanjingUniversity |
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| 摘 要： | The experiments on the enrichment of gold by bacteria indicate that bacteria have a very intense capacity of enriching gold and act as an arrester of trace gold in sea water,Bacteria enrich gold in two forms:absorption and adsorption.Absorption means that gold finds its way into organisms and it is combined with the mercapto group of protein,whereas adsorption means that gold is adsorbed on organisma by amino acid secreted by cell walls,Bacteria are organisms with very high vitality and reproductive capacity and huge productivity in nature Bacteria,which are important geolgical agents for gold enrichment and can exert effects on geological environments by their metabolism,are of important geochemical significance for the formation of gold-bearing black rock series.
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| 关 键 词： | 富集 金矿床 找矿标志 细菌 生物地球化学 环境 生物体 |
Simulating experiments on enrichment of gold by bacteria and their geochemical significance |
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| Jingrong Zhang,Jianjun Lu,Jianping Zhai,Fan Yang.Simulating Experiments on Enrichment of Gold by Bacteria and Their Geochemical Significance[J].Chinese Journal of Geochemistry,1997,16(4):369-373. |
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| Authors: | Jingrong Zhang Jianjun Lu Jianping Zhai Fan Yang |
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| Institution: | (1) Department of Earth Sciences, Nanjing University, 210093 Nanjing |
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| Abstract: | The experiments on the enrichment of gold by bacteria indicate that bacteria have a very intense capacity of enriching gold
and act as an arrester of trace gold in sea water. Bacteria enrich gold in two forms: absorption and adsorption. Absorption
means that gold finds its way into organisms and it is combined with the mercapto group of protein, whereas adsorption means
that gold is adsorbed on organisms by amino acid secreted by cell walls. Bacteria are organisms with very high vitality and
reproductive capacity and huge productivity in nature. Bacteria, which are important geological agents for gold enrichment
and can exert effects on geological environments by their metabolism, are of important geochemical significance for the formation
of gold-bearing black rock series.
This project was financially granted by the National Natural Science Foundation of China (No. 9488010). |
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| Keywords: | bacterium experiment biogeochemistry absorption adsorption gold |
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