哈尔滨城市道路表土记录的痕量元素在不同粒级中的分布特征

基金项目: 国家自然科学基金项目（41072259）资助。

The distribution of trace elements in different grain-size fractions inferred from road surface soils in Harbin City, Heilongjiang Province

College of Geographic Science, Harbin Normal University, Harbin 150025, Heilongjiang, China

摘要: 提要：将城市道路表土样品进行粒度分级（全样、>63μm、63～30μm、30～11μm和<11μm），测定了各粒级组分的微量元素和稀土元素组成。结果显示，微量元素在不同粒级组分中的变化程度按照以下顺序依次递增：Sr
- 不同粒级组分 /
- 地球化学 /
- 微量元素 /
- 稀土元素 /
- 粒度效应
Abstract: Abstract：The samples of urban road surface soils were collected from Harbin City of Heilongjiang Province and divided into different grain size fractions (bulk sample, >63μm, 63-30μm, 30-11μm and <11μm). These samples were analyzed to obtain the composition of trace elements and rare earth elements (REE). The results indicate that the variation degree of trace elements in different size fractions increases in order of Sr
Keywords:
different size fraction /

geochemistry /

trace elements /

rare earth element (REE) /

granularity effect