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Geoscience ›› 2021, Vol. 35 ›› Issue (04): 1009-1017.DOI: 10.19657/j.geoscience.1000-8527.2020.092

• Coal Geology • Previous Articles     Next Articles

Geochemical Characteristics of Rare Earth Elements and the Indicative Significance in the Ximing Coal Mine, Shanxi Province

WANG Zhenzhen1(), LI Jinxiao1, ZHANG Ke1, GUO Wenmu1, ZHANG Shaowei2, XIAO Lin1()   

  1. 1. Department of Geoscience and Engineering, Hebei University of Engineering, Handan, Hebei 056038, China
    2. Shanxi Institute of Geology and Mineral Resources, Taiyuan, Shanxi 030001, China
  • Received:2020-03-17 Revised:2020-10-25 Online:2021-08-10 Published:2021-09-08
  • Contact: XIAO Lin

Abstract:

Concentration characteristics and state of occurrence of rare earth elements (REEs) in No.2,No.3, No.8 and No.9 coals of the Ximing Mine in Shanxi were analyzed by inductively coupled plasma mass spectrometry (ICP-MS) and X-ray fluorescence spectrometry (XRF). According to the anomalies of Ce, Eu, Gd, La, Y and TiO2/Al2O3, we revealed the formation environment of coal and the possible REE sources. The results show that: (1) The REE contents of the Ximing coal is very similar to the global average value and the value of the United States coal, but lower than the average value of the Chinese coal. The REEs are mainly MREE-HREE-enriched, followed by LREE and LREE-MREE-enriched. (2) The coal-forming environment is mainly weakly reducing and affected by acidic marsh water environment. (3) The REEs source may have been mainly terrigenous detrital materials, and the sedimentary source rocks are determined to be felsic or intermediate-felsic magmatic rocks.

Key words: rare earth element, geochemical characteristic, coal-forming environment, Ximing coal mine

CLC Number: