我国几种土壤铁锰结核中的锰矿物类型
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* 国家自然科学基金项目(批准号:49771049)


MINERALOGY OF MANGANESE IN IRON-MANGANESE NODULES OF SEVERAL SOILS IN CHINA
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    摘要:

    用X-射线衍射和化学选择溶提技术研究我国几种土壤中铁锰结核的锰矿物类型的结果表明:供试土壤铁锰结核都含有锂硬锰矿,除山东钙积潮湿变性土以钙锰矿占优势外,其它样品中的锰矿物均以锂硬锰矿为主,结晶程度较高;湖北武汉和枣阳的粘磐湿润淋溶土的铁锰结核含有钠水锰矿和羟水锰矿;湖南宜章富铝湿润富铁土、湖北粘磐湿润淋溶土和山东钙积潮湿变性土的铁锰结核中有钡硬锰矿;湖南桂阳富铝湿润富铁土的铁锰结核中检测出少量的铅锰矿。土壤铁锰结核中锰矿物类型与相应土壤条件下的土壤母质、PH值、阳离子类型与数量等土壤条件相一致。

    Abstract:

    X-ray diffraction and selective chemical extraction methods were used to investigate the types of manganese minerals in iron-manganese nodules of several soils in China. The changes of relative intensity of X-ray diffraction patterns were studied before and after chemically selective extraction. It was found that lithiophorite was a common manganese mineral in all tested iron-manganese nodules with high degree of crystallinity. Todorokite, however, was predominant manganese mineral of iron-manganese nodules in cal-aquic Vertisols of Shandong province (No.5-4). The iron-manganese nodules of arp-udic Luvisols (No.2-1, No.4-1) in Hubei province contained birnessite and vernadite. Moreover, hollandite was found in iron-manganese nodules of alt udic Ferrisols in Yizhang, Hunan province (No. A), arp-udic Luvisols (No.4-1) in Zaoyang, Hubei province and cal-aquic Vertisols (No.5-1) in Shangdong province. There were a few of coronadite in iron-manganese nodules of alt udic Ferrisol in Guiyang, Hunan province (No.1-1). The types and amounts of manganese minerals in soil iron-manganese nodules were related to conditions of soil materials and environments.

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谭文峰,刘凡,李永华,贺纪正,李学垣.我国几种土壤铁锰结核中的锰矿物类型[J].土壤学报,2000,37(2):192-201. DOI:10.11766/trxb199901300206 Tan Wen-feng, Liu Fan Li, Yong-hua, He Ji-zheng, Li Xue-yuan. MINERALOGY OF MANGANESE IN IRON-MANGANESE NODULES OF SEVERAL SOILS IN CHINA[J]. Acta Pedologica Sinica,2000,37(2):192-201.

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  • 收稿日期:1999-01-30
  • 最后修改日期:1999-09-20
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  • 在线发布日期: 2013-02-25
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