Geochemical characteristics of REY, Li, Ga trace elements in the No. 9 coal seam of the Daheng mine, Ningwu coalfield, Shanxi Province, China

To understand the geochemical characteristics of the No.9 coal in the Daheng Mine of the Ningwu coalfield, the trace element analysis was conducted through X-ray fluorescence spectroscopy (XRF) and inductively coupled plasma mass spectrometry (ICP-MS). The sedimentary environment was discussed accor...

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Main Authors: Jin-xi Wang, Zhi-heng Fu, Ya-fan Hu, Zhen Yang, Jia-liang Ma, Yu-zhuang Sun
Format: Article
Language:English
Published: KeAi Communications Co., Ltd. 2021-06-01
Series:China Geology
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2096519221000574
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author Jin-xi Wang
Zhi-heng Fu
Ya-fan Hu
Zhen Yang
Jia-liang Ma
Yu-zhuang Sun
author_facet Jin-xi Wang
Zhi-heng Fu
Ya-fan Hu
Zhen Yang
Jia-liang Ma
Yu-zhuang Sun
author_sort Jin-xi Wang
collection DOAJ
description To understand the geochemical characteristics of the No.9 coal in the Daheng Mine of the Ningwu coalfield, the trace element analysis was conducted through X-ray fluorescence spectroscopy (XRF) and inductively coupled plasma mass spectrometry (ICP-MS). The sedimentary environment was discussed according to the element geochemical parameters. The results show that Li, Ga, Hf, Zr, Nb, Th, and Ta are slightly enriched in the No. 9 coal of Daheng Mine. The average value of the rare earth elements and yttrium (∑REY) in coal here is 144.20 μg/g (excluding parting), which is higher than the average value of ∑REY in the world ’s coal and China ’s coal. The light rare earth elements (LREY) are enriched. The content of Eu was 0.12–2.10 μg/g with an average of 0.57 μg/g, and the Eu is obviously negatively abnormal. Most of the trace elements in the coal are positively correlated with the ash content, which shows that the occurrence of these trace elements is related to inorganic minerals. The results of sequential chemical extraction experiments show that rare earth elements mainly exist in coal in the form of aluminosilicate. The value of the Sr/Ba and the content of S reflect that the coal-forming environment was influenced by seawater. The values of V/Cr and Ni/Co reflect that the peat swamp is in an anaerobic environment and a strongly reducing environment during the coal-forming period.
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spelling doaj.art-adf7eee4fffa4845b91f1658e299ce0e2023-02-07T04:22:33ZengKeAi Communications Co., Ltd.China Geology2096-51922021-06-0142266273Geochemical characteristics of REY, Li, Ga trace elements in the No. 9 coal seam of the Daheng mine, Ningwu coalfield, Shanxi Province, ChinaJin-xi Wang0Zhi-heng Fu1Ya-fan Hu2Zhen Yang3Jia-liang Ma4Yu-zhuang Sun5Key Laboratory of Resource Exploration Research of Hebei Province, Hebei University of Engineering, Handan 056038, China; School of Resources and Geosciences, China University of Mining and Technology, Xuzhou 221116, China; Corresponding author: E-mail address: jinxi77@126.com (Jin-xi Wang).Key Laboratory of Resource Exploration Research of Hebei Province, Hebei University of Engineering, Handan 056038, ChinaKey Laboratory of Resource Exploration Research of Hebei Province, Hebei University of Engineering, Handan 056038, ChinaKey Laboratory of Resource Exploration Research of Hebei Province, Hebei University of Engineering, Handan 056038, ChinaInstitute for Atmospheric and Environmental Sciences, Faculty of Geoscience and Geography, Goethe-University Frankfurt, Frankfurt am Main 60438, GermanyKey Laboratory of Resource Exploration Research of Hebei Province, Hebei University of Engineering, Handan 056038, ChinaTo understand the geochemical characteristics of the No.9 coal in the Daheng Mine of the Ningwu coalfield, the trace element analysis was conducted through X-ray fluorescence spectroscopy (XRF) and inductively coupled plasma mass spectrometry (ICP-MS). The sedimentary environment was discussed according to the element geochemical parameters. The results show that Li, Ga, Hf, Zr, Nb, Th, and Ta are slightly enriched in the No. 9 coal of Daheng Mine. The average value of the rare earth elements and yttrium (∑REY) in coal here is 144.20 μg/g (excluding parting), which is higher than the average value of ∑REY in the world ’s coal and China ’s coal. The light rare earth elements (LREY) are enriched. The content of Eu was 0.12–2.10 μg/g with an average of 0.57 μg/g, and the Eu is obviously negatively abnormal. Most of the trace elements in the coal are positively correlated with the ash content, which shows that the occurrence of these trace elements is related to inorganic minerals. The results of sequential chemical extraction experiments show that rare earth elements mainly exist in coal in the form of aluminosilicate. The value of the Sr/Ba and the content of S reflect that the coal-forming environment was influenced by seawater. The values of V/Cr and Ni/Co reflect that the peat swamp is in an anaerobic environment and a strongly reducing environment during the coal-forming period.http://www.sciencedirect.com/science/article/pii/S2096519221000574Trace elementsRare earth elementsGeochemistryCoalTaiyuan FormationMineral exploration engineering
spellingShingle Jin-xi Wang
Zhi-heng Fu
Ya-fan Hu
Zhen Yang
Jia-liang Ma
Yu-zhuang Sun
Geochemical characteristics of REY, Li, Ga trace elements in the No. 9 coal seam of the Daheng mine, Ningwu coalfield, Shanxi Province, China
China Geology
Trace elements
Rare earth elements
Geochemistry
Coal
Taiyuan Formation
Mineral exploration engineering
title Geochemical characteristics of REY, Li, Ga trace elements in the No. 9 coal seam of the Daheng mine, Ningwu coalfield, Shanxi Province, China
title_full Geochemical characteristics of REY, Li, Ga trace elements in the No. 9 coal seam of the Daheng mine, Ningwu coalfield, Shanxi Province, China
title_fullStr Geochemical characteristics of REY, Li, Ga trace elements in the No. 9 coal seam of the Daheng mine, Ningwu coalfield, Shanxi Province, China
title_full_unstemmed Geochemical characteristics of REY, Li, Ga trace elements in the No. 9 coal seam of the Daheng mine, Ningwu coalfield, Shanxi Province, China
title_short Geochemical characteristics of REY, Li, Ga trace elements in the No. 9 coal seam of the Daheng mine, Ningwu coalfield, Shanxi Province, China
title_sort geochemical characteristics of rey li ga trace elements in the no 9 coal seam of the daheng mine ningwu coalfield shanxi province china
topic Trace elements
Rare earth elements
Geochemistry
Coal
Taiyuan Formation
Mineral exploration engineering
url http://www.sciencedirect.com/science/article/pii/S2096519221000574
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