Modes of occurrence of rare earth elements in peat from Western Siberia

被引：46

作者：

Arbuzov, S. I. ^{[1
]}

Maslov, S. G. ^{[1
]}

Finkelman, R. B. ^{[2
]}

Mezhibor, A. M. ^{[1
]}

Ilenok, S. S. ^{[1
]}

Blokhin, M. G. ^{[3
]}

Peregudina, E. V. ^{[1
]}

机构：

[1] Tomsk Polytech Univ, Tomsk, Russia

[2] Univ Texas Dallas, Richardson, TX 75083 USA

[3] Far East Geol Inst FEB RAS, Vladivostok, Russia

来源：

JOURNAL OF GEOCHEMICAL EXPLORATION | 2018年 / 184卷

关键词：

Peat; Rare earth elements; Modes of occurrence; Conditions of peat formation; LATE PERMIAN COAL; BEHAVIOR; YTTRIUM; CHINA; FRACTIONATION; GEOCHEMISTRY; EXTRACTION; SPECIATION; SEDIMENTS; MINERALS;

D O I：

10.1016/j.gexplo.2017.10.012

中图分类号：

P3 [地球物理学]; P59 [地球化学];

学科分类号：

0708 ; 070902 ;

摘要：

Selective leaching of rare earth elements (REE) from peat samples from Western Siberia indicates unanticipated modes of r occurrence. It has been determined that from 40 to 80% of the total REE in the peat is accounted for in the hydrolyzable and water-soluble substances, 10-30% of the REE is concentrated in humic acids. Minerals in peat play a minor role in the accumulation of REE. In general, no > 25% of REE is accounted for in mineral association. Among the mineral forms of REE in peat, clastogenic phosphates (monazite, xenotime, crandallite group) and zircon are the dominant hosts. REE are distributed in different phases of the peat: the water-soluble and hydrolyzable substances are relatively enriched in light REE, and humic substances are enriched in heavy REE.

引用

页码：40 / 48

页数：9

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