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Minerals
Special Issues
Geochemistry and Metallogenesis of REE-Rich Phosphorite Deposits
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Geochemistry and Metallogenesis of REE-Rich Phosphorite Deposits

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

Deadline for manuscript submissions: 30 June 2024 | Viewed by 354

Special Issue Editors

Dr. Pei Liang

E-Mail Website
Guest Editor
School of Civil and Resource Engineering, University of Science and Technology Beijing, Beijing 100083, China
Interests: REE-rich phosphorite deposits; carbonatite-related REE deposits; IOCG deposits
Prof. Dr. Richen Zhong

E-Mail Website
Guest Editor
School of Civil and Resource Engineering, University of Science and Technology Beijing, Beijing 100083, China
Interests: experimental geochemistry; REE mineralizaiton
Special Issues, Collections and Topics in MDPI journals
Dr. Lingling Xiao

E-Mail Website
Guest Editor
School of Civil and Resource Engineering, University of Science and Technology Beijing, Beijing 100083, China
Interests: precambrian metamorphic geology; metamorphism of orogenic belt
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Rare earth elements (REEs) consist of 15 lanthanide elements (La to Lu), which are strategic resources in the word. Because of the increasing application of REEs and yttrium (REY) in high- and green-tech industries, the demand for REY is projected to increase in the future. Among these REEs, medium–heavy rare earth elements (MHREEs) are more important. Carbonatite-related deposits are the main source of light rare earth elements (LREEs), while ion adsorption (IAR) deposits compose the main source of heavy rare earth elements (HREEs). Recently, REE-rich phosphorite deposits have been found to play a role in searching for MHREEs, especially phosphorite deposits in SW China, e.g., Zhijin, Kunyang, and Qingping.

However, the micropetrographic characteristics of phosphates have not been widely studied, especially those of REE-enriched phosphates. For the metallogenesis of REE-rich phosphorite deposits, controversy remains, including (1) the sedimentation process of terrigenous clastics, (2) biological activity, and (3) REE-rich hydrothermal fluids.

This Special Issue aims to address the metallogenesis of REE-rich phosphorite deposits and related geochemical characteristics.

Dr. Pei Liang
Prof. Dr. Richen Zhong
Dr. Lingling Xiao
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
  • phosphorite deposits
  • geochemistry
  • SW China
  • REE mineralization
  • metallogenesis

Published Papers (1 paper)

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Research

26 pages, 2715 KiB  
Article
Zircon U-Pb and Fission-Track Chronology of the Kaiyang Phosphate Deposit in the Yangtze Block: Implications for the Rodinia Supercontinent Splitting and Subsequent Thermal Events
by Yina Song, Tianqi Li, Jiayi Zhou, Debin Zhu and Lingling Xiao
Minerals 2024, 14(6), 585; https://doi.org/10.3390/min14060585 - 31 May 2024
Abstract
The Kaiyang phosphate mining area in Guizhou, which is located in the central–southern part of the Yangtze Block, hosts one of China’s more significant phosphate-enriched strata within the Doushantuo Formation. This formation is essential for phosphate mining and also preserves multiple magmatic events, [...] Read more.
The Kaiyang phosphate mining area in Guizhou, which is located in the central–southern part of the Yangtze Block, hosts one of China’s more significant phosphate-enriched strata within the Doushantuo Formation. This formation is essential for phosphate mining and also preserves multiple magmatic events, which are closely linked to the assembly and breakup of the Rodinia supercontinent. Our comprehensive studies in petrology, geochemistry, zircon U-Pb geochronology, and fission-track dating reveal that the primary ore mineral in phosphorite is collophane, which is accompanied by dolomite, quartz, pyrite, and zircon. The majority of detrital zircons in the phosphorite, as well as the overlying dolostone and underlying sandstone, are of magmatic origin, with a record of multiple stages of magmatic ages. Among these, the older age groups of ~2500 Ma and ~2000–1800 Ma represent the ancient crystalline basement of the Yangtze Block from the Paleoproterozoic era. The three main age peaks at ~880 Ma, ~820 Ma, and ~780 Ma indicate that the magmatic event at ~880 Ma was related to the assembly of the Rodinia supercontinent during the Grenvillian period. The most prominent age peak at ~820 Ma marks a critical time point for the transition from assembly to the breakup of the Rodinia supercontinent, with the Yangtze Block’s response to the supercontinent breakup events lasting at least until ~780 Ma. The youngest group of zircon ages from the phosphorite (~594 Ma), and the underlying sandstone (~529 Ma) establishes the minimum age for the phosphorite formation, indicating that the Doushantuo phosphorite layer in the Kaiyang area was formed after 594 Ma, i.e., even later than 529 Ma. The zircon fission-track ages in the three rock types of the phosphorite-bearing rocks can be divided into three groups: 501–489 Ma, ~366 Ma, and 53–39 Ma. All of these groups are presumed to be associated with the tectonic uplift events that follow mineralization. The first two age groups correspond to the two major tectonic uplift events during the Caledonian period, which resulted in the formation of the Qianzhong Uplift. The ages of 53–39 Ma are related to the late uplift of the Himalayan orogeny, and they represent its response in the Kaiyang area of Guizhou. Full article
(This article belongs to the Special Issue Geochemistry and Metallogenesis of REE-Rich Phosphorite Deposits)
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