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Rare-earth elements in Luochuan loess section, Shaanxi province.

Authors :
Wen, Qizhong
Yu, Suhua
Sun, Fuqing
Wang, Yuqi
Chen, Bingru
Tu, Shude
Sun, Jingxin
Source :
Chinese Journal of Geochemistry; 1985, Vol. 4 Issue 2, p172-180, 9p
Publication Year :
1985

Abstract

The Σ REE in loesses of different ages in the Luochuan section shows a narrow range of variation, indicating the homogeneity of loessic materials in chemical composition. The REEs in loess are concentrated mainly in silt-sized detrital minerals. Loesses and paleosols of different ages all are relatively enriched in rare-earth elements of the Ce family, and show similar REE distribution patterns. The fractionation among various REEs in the loess is different from that in morainic, marine and lacustrine sediments, but is similar to that in sand samples from deserts in Northwest China. The ratios of Ce/Ce* and Eu/Eu* reflect that the provenance of loessic materials and their accumulating area are all in an oxidation environment with weakly basic mediums under arid or semi-arid climate. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
10009426
Volume :
4
Issue :
2
Database :
Complementary Index
Journal :
Chinese Journal of Geochemistry
Publication Type :
Academic Journal
Accession number :
72969167
Full Text :
https://doi.org/10.1007/BF03179337