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Minerals 2017, 7(12), 239; https://doi.org/10.3390/min7120239

Abundance, Distribution, and Modes of Occurrence of Uranium in Chinese Coals

1
School of Earth and Environment, Anhui University of Science and Technology, Huainan, Anhui 232001, China
2
School of Energy Resources, China University of Geosciences, Beijing 100083, China
*
Author to whom correspondence should be addressed.
Received: 27 October 2017 / Revised: 28 November 2017 / Accepted: 29 November 2017 / Published: 1 December 2017
(This article belongs to the Special Issue Toxic Mineral Matter in Coal and Coal Combustion Products)
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Abstract

Due to its environmental and resource impacts, the geochemistry of uranium in coal is of both academic and practical significance. In order to give a comprehensive summary about the geochemistry of uranium in coals, the abundance, distribution, and modes of occurrence of uranium in Chinese coals were reviewed in this paper. Although some coals from southwestern and northwestern China are significantly enriched in uranium, the common Chinese coals are of a comparable uranium concentration to the world coals. The roof and floor rocks, and parting of coalbeds, or coal benches that are close to the surrounding rock are favorable hosts for uranium in one coalbed. The uranium concentrations in coals of different ages decrease in this order, e.g., Paleogene and Neogene > Late Permian > Late Triassic > Late Carboniferous and Early Permian > Late Jurassic and Early Cretaceous > Early and Middle Jurassic. Uranium in Chinese coals is mainly associated with organic matter, and is correspondingly enriched in subbituminous coal and lignite. View Full-Text
Keywords: uranium; geochemistry; abundance; distribution; modes of occurrence; Chinese coals uranium; geochemistry; abundance; distribution; modes of occurrence; Chinese coals
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Chen, J.; Chen, P.; Yao, D.; Huang, W.; Tang, S.; Wang, K.; Liu, W.; Hu, Y.; Zhang, B.; Sha, J. Abundance, Distribution, and Modes of Occurrence of Uranium in Chinese Coals. Minerals 2017, 7, 239.

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