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Minerals
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Ag-Pb-Zn Deposits: Geology and Geochemistry
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Ag-Pb-Zn Deposits: Geology and Geochemistry

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

Deadline for manuscript submissions: 31 July 2024 | Viewed by 1607

Special Issue Editors

Dr. Degao Zhai

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Guest Editor
School of Earth Sciences and Resources, China University of Geosciences, Beijing 100083, China
Interests: Ag-Pb-Zn deposits; epithermal deposits; ore genesis
Dr. Yucai Song

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Guest Editor
Institute of Geology, Chinese Academy of Geological Sciences, Beijing 100037, China
Interests: Pb-Zn mineralization; MVT deposits; Tethyan domain
Prof. Dr. Panagiotis Voudouris

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Guest Editor
Faculty of Geology and Geoenvironment, National and Kapodistrian University of Athens, University Campus-Zografou, 15784 Athens, Greece
Interests: ore minerals; critical metals; magmatic-hydrothermal ore deposits; mineralogy of hydrothermal alterations in porphyry-epithermal systems; mineralogy and genesis of gemstones
Special Issues, Collections and Topics in MDPI journals
Dr. Stylianos Tombros

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Guest Editor
Department of Materials Science, School of Natural Sciences, University of Patras, 26504 Rio Patras, Greece
Interests: VMS deposits; hydrothermal mineralization; geochemistry
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Silver–lead–zinc mineralization has made a key contribution to the global supply of Ag and base metals, which are critical to our human life. Furthermore, numerous studies have identified that a large number of strategic metals could be hosted in sulfides from the Ag-Pb-Zn deposits. Therefore, more attention should be given to further understanding the geological occurrences, metal sources, fluid transport and metal precipitation, as well as ore exploration for those ore deposits worldwide. Even though some of those deposits demonstrate a close temporal, spatial, and genetic association with porphyry (e.g., porphyry–skarn–epithermal types), some Ag-Pb-Zn mineralization typically occurs peripheral to the porphyry systems and shows no genetic relation to the magmatic process (e.g., MVT and sandstone-hosted type). It could be relatively well understood for the metal and fluid sources for Ag-Pb-Zn mineralization related to the porphyry system; however, those possibilities related to non-magmatic conditions could be much more diverse. To better summarize and infer the genesis of the Ag-Pb-Zn mineralization in various geological conditions, this Special Issue will involve papers from various aspects, scales, and types for global Ag-Pb-Zn ore deposits.

Dr. Degao Zhai
Dr. Yucai Song
Prof. Dr. Panagiotis Voudouris
Dr. Stylianos Tombros
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

  • Ag-Pb-Zn mineralization
  • genetic model
  • ore-forming fluids
  • metal source
  • fluid evolution
  • geochronology
  • geochemistry
  • ore exploration

Published Papers (1 paper)

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Research

23 pages, 55036 KiB  
Article
Microfabrics, In Situ Trace Element Compositions of Pyrite, and the Sulfur Isotope Chemistry of Sulfides from the Xitieshan Pb-Zn Deposit, Qinghai Province, Northwest China: Analysis and Implications
by Hui Yang and Huashan Sun
Minerals 2023, 13(12), 1549; https://doi.org/10.3390/min13121549 - 15 Dec 2023
Viewed by 876
Abstract
The Xitieshan deposit, located in the central segment of the northern margin of the Qaidam Basin, is among the largest massive Pb-Zn sulfide deposits in China. This deposit, along with its ore-bearing rock series known as the Tanjianshan Group, underwent greenschist facies metamorphism [...] Read more.
The Xitieshan deposit, located in the central segment of the northern margin of the Qaidam Basin, is among the largest massive Pb-Zn sulfide deposits in China. This deposit, along with its ore-bearing rock series known as the Tanjianshan Group, underwent greenschist facies metamorphism due to subsequent orogeny. We investigated the in situ sulfur isotopes of sulfides with different occurrences to define the origin of ore-forming fluids. The δ34S values of sulfides from stratiform ores, massive ores in schist, stockwork ores in marble, schist and discolored altered rocks that constitute a typical double-mineralization structure range from −5.3‰ to +5.6‰ and from −1.7‰ to +32‰, respectively, indicating distinct biological and thermochemical reductions in seawater sulfates. These are similar to the sulfur isotopic characteristics of VSHMS deposits. Pyrite, whose LA-ICP-MS trace element compositions can provide significant information about metallogenic evolution and deposit genesis, is ubiquitous throughout the whole mineralization process. In these stratiform, massive and stockwork ores, three pyrite types were identified: colloform pyrite (Py0), fine-grained anhedral spongy pyrite (Py1) and coarse-grained euhedral pyrite (Py2). The contents of most metallogenic elements, such as Cu, Pb, Zn, Ag, Mo, Mn and Sn, decrease from Py0 to Py2 with the enhancement of metamorphic recrystallization. This suggests that the expelled elements appear as inclusions in primitive pyrite, contributing to the precipitation of new sulfide phases, such as sphalerite and galena. Orogenic metamorphism played an important role in controlling further Pb-Zn enrichment of the Xitieshan deposit. Moreover, there is another mineralization type, primarily occurring as sulfide veins in the undeformed Formation C siltstones of the Tanjianshan Group, which also crosscut early-formed sulfides, showing close-to-zero S isotopic compositions. In this mineralization type, pyrite (Py3) displays high Se/Tl (>10) and Co/Ni (>2.2) ratios, both indicating a minor superimposed post-orogenic magmatic–hydrothermal event. Full article
(This article belongs to the Special Issue Ag-Pb-Zn Deposits: Geology and Geochemistry)
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