Enrichment of strategic metals in the Upper Triassic coal from the Nui Hong open-pit mine, Thai Nguyen Coalfield, NE Vietnam

Research on coal-hosted strategic metal ore deposits is an important subject in coal geology and mineral deposit worldwide. However, the related geological characteristics of coals from Vietnam have seldom been investigated, let alone the strategic metals in coals. This paper investigates the minera...

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Autores: Li, Jing, Lin, Yang, Nguyen, Xuanphu, Zhuang, Xinguo, Li, Baoqing, Querol, Xavier, Moreno, Natalia, Córdoba, Patricia
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2023
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/287609
Acceso en línea:http://hdl.handle.net/10261/287609
https://api.elsevier.com/content/abstract/scopus_id/85146306579
Access Level:acceso abierto
Palabra clave:Upper Triassic
High-organic-sulfur coal
Hydrothermal solutions
Strategic metals in coal
Thai Nguyen Coalfield
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spelling Enrichment of strategic metals in the Upper Triassic coal from the Nui Hong open-pit mine, Thai Nguyen Coalfield, NE VietnamLi, JingLin, YangNguyen, XuanphuZhuang, XinguoLi, BaoqingQuerol, XavierMoreno, NataliaCórdoba, PatriciaUpper TriassicHigh-organic-sulfur coalHydrothermal solutionsStrategic metals in coalThai Nguyen CoalfieldResearch on coal-hosted strategic metal ore deposits is an important subject in coal geology and mineral deposit worldwide. However, the related geological characteristics of coals from Vietnam have seldom been investigated, let alone the strategic metals in coals. This paper investigates the mineralogical and geochemical characteristics of the Upper Triassic coal from the Nui Hong open-pit mine, Thai Nguyen Coalfield, NE Vietnam, with emphasis on the enrichment of strategic metals in coal. The Nui Hong coal is low-volatile bituminous with high sulfur organic content. Minerals in the Nui Hong coal is predominantly composed of authigenic quartz, tobelite, pyrite, and calcite, with a small proportion of sphalerite, gypsum and fluorapatite in some coal bench samples. Mo-U-V-Se and Ge-W-Sb-Cs-Tl(-U) strategic metal element assemblages along with As-P toxic element association is significantly enriched in the Nui Hong coal, pointing to a significant economic benefit for Cs, Mo, U, and Ge recovery from the Nui Hong coal. The Ge enrichment in the Nui Hong coal provides a new perspective on prospecting of coal-hosted Ge deposit in high-rank coal. Cesium mostly occurs in K-rich aluminosilicate minerals (tobelite and/or illite), while Mo, Sb, U, Ge, and Tl are predominantly associated with organic matter in the Nui Hong coal. Multistage hydrothermal activities occurring in the marine-influenced S-rich, Fe-poor and clastic-starved anoxic-euxinic coal-forming environment are responsible for the significant enrichment of strategic metal elements in the upper Triassic coals from the Nui Hong open-pit mine, Thai Nguyen Province.This research was supported by the National Key R&D Program of China (No. 2021YFC2902000), and the National Natural Science Foundation of China (No. 41972179).Peer reviewedElsevierConsejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202320232023info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/287609https://api.elsevier.com/content/abstract/scopus_id/85146306579reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)InglésOre Geology Reviewshttps://doi.org/10.1016/j.oregeorev.2023.105301Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/2876092026-05-22T06:33:51Z
dc.title.none.fl_str_mv Enrichment of strategic metals in the Upper Triassic coal from the Nui Hong open-pit mine, Thai Nguyen Coalfield, NE Vietnam
title Enrichment of strategic metals in the Upper Triassic coal from the Nui Hong open-pit mine, Thai Nguyen Coalfield, NE Vietnam
spellingShingle Enrichment of strategic metals in the Upper Triassic coal from the Nui Hong open-pit mine, Thai Nguyen Coalfield, NE Vietnam
Li, Jing
Upper Triassic
High-organic-sulfur coal
Hydrothermal solutions
Strategic metals in coal
Thai Nguyen Coalfield
title_short Enrichment of strategic metals in the Upper Triassic coal from the Nui Hong open-pit mine, Thai Nguyen Coalfield, NE Vietnam
title_full Enrichment of strategic metals in the Upper Triassic coal from the Nui Hong open-pit mine, Thai Nguyen Coalfield, NE Vietnam
title_fullStr Enrichment of strategic metals in the Upper Triassic coal from the Nui Hong open-pit mine, Thai Nguyen Coalfield, NE Vietnam
title_full_unstemmed Enrichment of strategic metals in the Upper Triassic coal from the Nui Hong open-pit mine, Thai Nguyen Coalfield, NE Vietnam
title_sort Enrichment of strategic metals in the Upper Triassic coal from the Nui Hong open-pit mine, Thai Nguyen Coalfield, NE Vietnam
dc.creator.none.fl_str_mv Li, Jing
Lin, Yang
Nguyen, Xuanphu
Zhuang, Xinguo
Li, Baoqing
Querol, Xavier
Moreno, Natalia
Córdoba, Patricia
author Li, Jing
author_facet Li, Jing
Lin, Yang
Nguyen, Xuanphu
Zhuang, Xinguo
Li, Baoqing
Querol, Xavier
Moreno, Natalia
Córdoba, Patricia
author_role author
author2 Lin, Yang
Nguyen, Xuanphu
Zhuang, Xinguo
Li, Baoqing
Querol, Xavier
Moreno, Natalia
Córdoba, Patricia
author2_role author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Upper Triassic
High-organic-sulfur coal
Hydrothermal solutions
Strategic metals in coal
Thai Nguyen Coalfield
topic Upper Triassic
High-organic-sulfur coal
Hydrothermal solutions
Strategic metals in coal
Thai Nguyen Coalfield
description Research on coal-hosted strategic metal ore deposits is an important subject in coal geology and mineral deposit worldwide. However, the related geological characteristics of coals from Vietnam have seldom been investigated, let alone the strategic metals in coals. This paper investigates the mineralogical and geochemical characteristics of the Upper Triassic coal from the Nui Hong open-pit mine, Thai Nguyen Coalfield, NE Vietnam, with emphasis on the enrichment of strategic metals in coal. The Nui Hong coal is low-volatile bituminous with high sulfur organic content. Minerals in the Nui Hong coal is predominantly composed of authigenic quartz, tobelite, pyrite, and calcite, with a small proportion of sphalerite, gypsum and fluorapatite in some coal bench samples. Mo-U-V-Se and Ge-W-Sb-Cs-Tl(-U) strategic metal element assemblages along with As-P toxic element association is significantly enriched in the Nui Hong coal, pointing to a significant economic benefit for Cs, Mo, U, and Ge recovery from the Nui Hong coal. The Ge enrichment in the Nui Hong coal provides a new perspective on prospecting of coal-hosted Ge deposit in high-rank coal. Cesium mostly occurs in K-rich aluminosilicate minerals (tobelite and/or illite), while Mo, Sb, U, Ge, and Tl are predominantly associated with organic matter in the Nui Hong coal. Multistage hydrothermal activities occurring in the marine-influenced S-rich, Fe-poor and clastic-starved anoxic-euxinic coal-forming environment are responsible for the significant enrichment of strategic metal elements in the upper Triassic coals from the Nui Hong open-pit mine, Thai Nguyen Province.
publishDate 2023
dc.date.none.fl_str_mv 2023
2023
2023
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Publisher's version
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/287609
https://api.elsevier.com/content/abstract/scopus_id/85146306579
url http://hdl.handle.net/10261/287609
https://api.elsevier.com/content/abstract/scopus_id/85146306579
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Ore Geology Reviews
https://doi.org/10.1016/j.oregeorev.2023.105301
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,81155

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