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| 水库渗漏水中氢氧化铁的矿化特征 | |
| 引用本文： | 孙振亚,车 遥,彭长琪,牟善彬,陈和生.水库渗漏水中氢氧化铁的矿化特征[J].岩石矿物学杂志,2001,20(4):405-408. |
| 作者姓名： | 孙振亚 车 遥 彭长琪 牟善彬 陈和生 |
| 作者单位： | 1. 武汉理工大学,材料研究与测试中心,湖北,武汉,430070；武汉理工大学,资源与环境工程学院,湖北,武汉,430070 2. 武汉理工大学,材料研究与测试中心,湖北,武汉,430070 3. 武汉理工大学,资源与环境工程学院,湖北,武汉,430070 |
| 基金项目： | 国家自然科学基金资助项目(40072015) |
| 摘 要： | 对富水水库大坝渗漏水和析出物进行了分析和研究。析出物的主要成分为Fe2O3，并含少量Al2O3和SiO2，铁质析出物的XRD、IR、SEM和TEM分析表明，氢氧化铁的结晶程度较低，主要结晶相为针铁矿，其次为少量伊利石、蒙脱石和石英。电子显微分析观察到在非晶质氢氧化铁凝胶团和亚微米级微粒聚集体中存在特殊的显微管状和螺旋状针铁矿，显示出明显的生物矿化特征。 |
| 关 键 词： | 水库 渗漏水 氢氧化铁 显微管状铁矿 螺旋状针铁矿 生物矿化作用 铁细菌 |
| 文章编号： | 1000-6524(2001)04-0405-04 |
| 修稿时间： | 2001年5月7日 |
Mineralization of Iron Hydroxide in Sediments of Seeping Water from FushuiReservoir |
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| SUN Zhen-y,CHE Yao,PENG Chang-qi,MOU Shan-bin and CHEN He-sheng.Mineralization of Iron Hydroxide in Sediments of Seeping Water from FushuiReservoir[J].Acta Petrologica Et Mineralogica,2001,20(4):405-408. | |
| Authors: | SUN Zhen-y CHE Yao PENG Chang-qi MOU Shan-bin and CHEN He-sheng |
| Abstract: | In this paper, the seeping water and the sediments of the dam base in Fushui Reservoir, whose surrounding strata are mainly Silurian shale, were analyzed and investigated. The sediments are rich in Fe 2O 3 together with small amount of Al 2O 3 and SiO 2. IR, XRD, SEM and TEM analyses show that crystalline minerals in the iron hydroxide sediments are mainly weakly-crystallized goethite with small amounts of illite and montmorillonite. There are some microtubular and spiral goethites scattered among the iron hydroxide colloidal cloud and submicrometer-size colloidal particles. The microtubular walls are found under TEM composed of nano-crystallines of goethite, and microspiral minerals are shown to have a resemblance to Gallionella bacteria in both morphology and size. It is obvious that they are closely related to microorganism mineralization. |
| Keywords: | seeping water iron hydroxide microtubular and spiral goethite biomineralization |
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