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Minerals
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Rare Earth Elements in Uranium Minerals: Implications for Mineralization
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Rare Earth Elements in Uranium Minerals: Implications for Mineralization

A special issue of Minerals (ISSN 2075-163X). This special issue belongs to the section "Mineral Deposits".

Deadline for manuscript submissions: 31 July 2025 | Viewed by 458

Special Issue Editors

Dr. M. Daniel Syczewski

E-Mail Website
Guest Editor
Geomicrobiology Department, Microbiology Institute, Faculty of Biology, University of Warsaw, Ilji Miecznikowa 1, 02-096 Warszawa, Poland
Interests: geochemistry; experimental mineralogy; experimental geochemistry; mineralogy; biomineralogy; geomicrobiology; scanning electron microscopy (SEM); transmission electron microscopy (TEM); energy dispersive spectroscopy (EDS); wavelength dispersive spectroscopy (WDS)
Dr. Jakub Kotowski

E-Mail Website
Guest Editor
Faculty of Geology, University of Warsaw, Żwirki i Wigury 93, 02-089 Warsaw, Poland
Interests: mineralogy and geochemistry of sedimentary rocks, provenance studies of clastic sediments, accessory phases i.e., REE, Nb, Sc, Th/U minerals; mineralogy in igneous and sedimentary rocks

Special Issue Information

Dear Colleagues,

This Special Issue invites submissions of original scientific research on rare earth elements in uranium minerals. The REEs and U elements are mostly derived from hydrothermal solutions. Their unique chemical properties also imply that they cannot be incorporated into every mineral structure. In addition, the sensitivity of the REEs to the physicochemical parameters of the solutions gives us a unique tool to investigate the prevailing crystallization conditions in primary mineralization as well as in weathering U mineralization. The aim of this Special Issue is to present the latest advances in the study of the presence of REEs in uranium mineralization in terms of mineralogy, petrology, uranium deposit occurrence, and formation of secondary U mineralization in AMD environments.

The Special Issue invites submissions of original scientific research related to REEs in uranium minerals. This Special Issue will focus on the following topics:

(1) The sources of REEs in uranium mineral deposits and their diffraction to determine the prevailing conditions during ore deposit formation.

(2) The REE behavior in AMD environments and its implications for determining possible weathering dominant physicochemical conditions.

(3) The REEs and trace elements in uranium minerals: Implications for their structure.

Dr. M. Daniel Syczewski
Dr. Jakub Kotowski
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Minerals is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • rare earth elements
  • uranium minerals
  • secondary uranium mineralization
  • AMD environments
  • experimental mineralogy and geochemistry

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Published Papers (1 paper)

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Research

21 pages, 22649 KiB  
Article
Epigenetic Alteration of the Hailijin Sandstone-Hosted Uranium Deposit and Its Indications on Uranium Metallogenesis in the Songliao Basin, NE China
by Mingming Tian, Ziying Li, Licheng Jia, Jungang Liu, Jun Ning and Jimu Li
Minerals 2025, 15(4), 393; https://doi.org/10.3390/min15040393 - 8 Apr 2025
Viewed by 253
Abstract
This study focuses on the Hailijing sandstone-hosted uranium deposit in the Songliao Basin. Through a combination of petrographic analysis, X-ray diffraction (XRD), scanning electron microscopy (SEM), and geochemical analysis, the epigenetic alteration of the deposit was systematically investigated, and the alteration zonation was [...] Read more.
This study focuses on the Hailijing sandstone-hosted uranium deposit in the Songliao Basin. Through a combination of petrographic analysis, X-ray diffraction (XRD), scanning electron microscopy (SEM), and geochemical analysis, the epigenetic alteration of the deposit was systematically investigated, and the alteration zonation was delineated. On this basis, the metallogenic mechanisms were further explored. The results indicate that six major types of alteration can be identified in the ore-bearing strata of the Hailijing uranium deposit: hematitization, limonitization, carbonatization, pyritization, clay mineralization (including kaolinite, illite, and illite-smectite mixed-layer), and baritization. The mineral assemblages at different stages of alteration vary: during the sedimentary diagenetic stage, the assemblage consists of “hematite + clay minerals + II-type pyrite (framboidal pyrite) + III-type pyrite (euhedral granular pyrite)”; during the uranium mineralization stage, it transitions to “ankerite + barite + I-type pyrite (colloidal pyrite) + minor kaolinite”; and in the post-ore stage, alteration is characterized by calcite cementation in red sandstones. Based on petrological, mineralogical, and geochemical characteristics, as well as the spatial distribution of the host gray sandstones, it is inferred that during uranium mineralization stage, the ore-bearing strata underwent reduction by uranium-rich reducing fluids sourced from the Lower Cretaceous Jiufotang Formation. The primary red sandstones of the Lower Yaojia Formation, formed under arid to semi-arid conditions, experienced varying degrees of reduction, resulting in a color transition from light red, brownish red, and yellowish brown to grayish-yellow and gray. Accordingly, four alteration zones are distinguished in the Hailijing uranium deposit: the primary red zone, weakly reduced pink zone, moderately reduced grayish-yellow zone, and strongly reduced gray zone. Furthermore, as the uranium-rich reducing fluids migrated from a high-temperature, high-pressure deep system to the low-temperature, low-pressure ore-bearing sandstone strata near the surface, uranium was unloaded, precipitated, and enriched, ultimately forming multi-layered and tabular-shaped uranium orebodies within the gray sandstone. This study elucidates the epigenetic alteration processes and metallogenic mechanisms of the Hailijing uranium deposit, providing a critical theoretical basis for further uranium exploration in the southern Songliao Basin. Full article
(This article belongs to the Special Issue Rare Earth Elements in Uranium Minerals: Implications for Mineralization)
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