地理研究

地理研究 ›› 1999, Vol. 18 ›› Issue (3): 241-246.doi: 10.11821/yj1999030003

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稀土元素在残积景观剖面中的垂直分异与矿物组成的关系——以赣南富稀土地理景观为例

高效江1, 章申2, 王立军2, 王玉琦3   

  1. 1. 华东师范大学地理系, 上海200062;
    2. 中国科学院地理研究所, 北京100101;
    3. 中国科学院高能所核分析部, 北京100080
  • 收稿日期:1998-04-07 修回日期:1998-12-21 出版日期:1999-09-15 发布日期:1999-09-15
  • 作者简介:高效江(1969- ),男,山东龙口人,博士.现于华东师范大学资源环境学院博士后流动站,从事环境地球化学研究,已发表论文10余篇.
  • 基金资助:
    国家自然科学基金

REE and its relation with the mineral fraction in a typical geographic landscape in Ganxian, Southern Jiangxi

GAO Xiao-jiang1, ZHANG Shen2, WANG Li-jun2, WANG Yu-qi3   

  1. 1. Department of Geography, East China Normall University Shanghai, 200062;
    2. Institute of Geography, CAS, Beijing 100101, China
  • Received:1998-04-07 Revised:1998-12-21 Online:1999-09-15 Published:1999-09-15

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被引次数

8

摘要： 选择赣南稀土矿区典型地理景观,主要研究了表生作用过程中稀土元素与矿物组成的关系。结果表明景观中稀土元素的含量分布与土体的机械组成密切相关。不同粒级组分中稀土元素的含量有以下序列:粗粉粒(20～63μm)≥细粉粒(2～20μm)>粘粒(<2μm)>沙粒(0.063～1mm)>石砾(>1mm).石英和长石对稀土元素起稀释的作用,高岭石、埃洛石等次生层状硅酸盐矿物对稀土元素具有吸附富集作用,重矿物对稀土元素分布也有一定的影响。

关键词: 稀土元素, 矿物组成, 景观

Abstract: Rare earth elements and its relation with the mineral fraction in a typical geographic landscape in the REE mining area in Ganxian, southern Jiangxi, were studied. The results showed that the REE content and the distribution are closely related to soil texture and mineral composition. REE are enriched in the 2~63 μm fractton, and the sequence of REE contents in different size fraction is: 20~63 μm≥2~20 μm>-2 μm>0.063~1 mm>+1 mm. Analysis of minerals suggested that quatze and feldspar can dilute REE, secondary minerals (e.g. Kolinite) can enrich REE, and heavy mineral is also one of the factors affecting REE distribution.

Key words: rare earth elements (REE), mineral fraction, geographic landscape

PACS: 

  • P596