| 微生物对硅酸盐矿物风化作用研究进展 |
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| 引用本文： | 吴涛,陈骏,连宾.微生物对硅酸盐矿物风化作用研究进展[J].矿物岩石地球化学通报,2007,26(3):263-268,273. |
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| 作者姓名： | 吴涛 陈骏 连宾 |
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| 作者单位： | 1. 南京大学,地球科学系,内生金属矿床成矿机制研究国家重点实验室,南京,210093
2. 南京大学,地球科学系,内生金属矿床成矿机制研究国家重点实验室,南京,210093;中国科学院,地球化学研究所,环境地球化学国家重点实验室,贵阳,550002 |
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| 基金项目： | 国家自然科学基金重点项目（40331001）;江苏省地球化学重点学科项目 |
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| 摘 要： | 微生物对硅酸盐矿物风化的影响研究取得了一系列重要进展。在贫营养环境中,微生物风化硅酸盐矿物获取营养物质,加速了硅酸盐矿物的风化;由于微生物的作用,矿物的风化会不遵循正常的矿物化学风化序列,表现出稳定矿物比不稳定矿物更易风化的特征。微生物风化硅酸盐矿物时会在硅酸盐矿物表面留下痕迹,即富集或转移相应的元素和矿物,而且还能改变硅酸盐矿物的化学组成和结构。微生物的上述行为受营养基质含量、有机酸、生物膜、胞外聚合物以及氧化还原作用的影响。
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| 关 键 词： | 微生物 硅酸盐矿物 风化 |
| 文章编号： | 1007-2802（2007）03-0263-06 |
| 修稿时间： | 2006-04-172007-02-13 |
Advance in Studies on the Function of Microbes to the Weathering of Silicate Minerals |
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| WU Tao,CHEN Jun,LIAN Bin.Advance in Studies on the Function of Microbes to the Weathering of Silicate Minerals[J].Bulletin of Mineralogy Petrology and Geochemistry,2007,26(3):263-268,273. |
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| Authors: | WU Tao CHEN Jun LIAN Bin |
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| Institution: | 1. State Key Laboratory of Mineral Deposit Research, Department of Earth Sciences, Nanjing University Nanjing 210093 ,China; 2. State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry,Chinese Academy of Sciences ,Guiyang 550002 ,China |
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| Abstract: | In small bodies of granite.The function of microbes to the weathering of silicate minerals has been gradually paid attention by environmental researchers and a series important research progress has been achieved recently.In the sterile nutrition environment,microbes have accelerated the weathering rate of silicate minerals in nature to get nutrient material from silicate minerals.Due to the interaction of microbes in the weathering process of silicate minerals,the generally stable minerals could be more easily weathered than the generally unstable minerals.Therefore,interaction of microbes could cause the weathering order of silicate minerals different to the normal sequence of chemical weathering.During the weathering process,microbes could make marks on the surface of the weathered silicate minerals and could change their chemical components and textures through the enrichment or migration of elements or minerals.All the activities of microorganisms described above are affected by following four factors:contents of nutritious matters,organic acid,biofilm,extracellular polymeric substance(EPS) and the redox reactions. |
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| Keywords: | microbe silicate mineral weathering |
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