Geochronology, Mineralogy, and Genesis of Orogenic Gold Deposit: Implications for Gold Prospecting

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

Deadline for manuscript submissions: 28 February 2026 | Viewed by 571

Special Issue Editors


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Guest Editor
Instituto de Geociências, Universidade Federal Do Rio de Janeiro–UFRJ, Rio de Janeiro 21941–916, Brazil
Interests: mineralizing processes; tectonics; geochemistry; mineralogy; igneous and metamorphic petrology

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Guest Editor
Faculdade de Geociências, Universidade Federal de Mato Grosso–UFMT, Cuiabá 78060-900, Brazil
Interests: metalogenesis; hydrothermal alteration; geochemistry

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Guest Editor
Centro de Tecnologia Mineral–CETEM, Rio de Janeiro 21941-908, Brazil
Interests: applied mineralogy; ore-forming processes

Special Issue Information

Dear Colleagues,

Despite decades of research, prospecting, and exploration, Orogenic Gold Deposits (OGDs) remain not only one of the main sources of gold ore worldwide but also an exploratory frontier. Its complexity is mainly due to its wide spatial distribution in distinct geological settings and geological time spans, ranging from the Archean to the Cenozoic. The diversity of involved metasedimentary and metaigneous rocks, variable metamorphic conditions, and structural architectures provides additional complications for understanding genetic scenarios and their implications for gold prospecting. Solving these challenges to optimize the prospecting of new reserves economically and sustainably requires a great joint effort between the scientific community and the mining industry, which is the main proposal of this Special Issue.

In this way, the Special Issue invites submissions that include original scientific research relating to Orogenic Gold Deposits from well-known and/or new localities worldwide. This Special Issue focuses on the following: 1) the characterization of mineralizing controls and relevant physico-chemical conditions for ore genesis; 2) the role of metamorphism and deformation on the mineralizing process and ore enrichment; 3) the geochronology of ore formation and its relation with tectonics and tectonic setting; 4) the characterization of parental fluids and hydrothermal processes; and 5) the effect of supergene enrichment on Orogenic Gold Deposits and its implications for gold prospecting.

Dr. Gustavo Luiz Campos Pires
Dr. Pedro Maciel de Paula Garcia
Dr. Felipe Emerson André Alves
Guest Editors

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Keywords

  • structurally controlled gold deposits
  • mineralizing hydrothermal fluids
  • metamorphic terrains
  • P-T-t pathway
  • deformational history
  • gold prospecting
  • gold tectonics

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Published Papers (1 paper)

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Research

20 pages, 11136 KB  
Article
Genesis and Timing of Low-Sulphide Gold–Quartz Mineralization of the Upryamoye Ore Field, Western Chukotka
by Ludmila Salete Canhimbue, Andrey Tarasenko, Elena Vatrushkina, Irina Latysheva and Afanasii Telnov
Minerals 2025, 15(11), 1130; https://doi.org/10.3390/min15111130 - 29 Oct 2025
Abstract
The Upryamoye ore field is located in the Chukotka metallogenic belt in Northeast Russia. The orebodies are hosted within Late Jurassic–Early Cretaceous greenschist-facies metamorphosed rocks and structurally controlled by NW-trending fold-and-thrust dislocations. Based on geological exploration, petrographic, mineralogical, and geochronological studies, new data [...] Read more.
The Upryamoye ore field is located in the Chukotka metallogenic belt in Northeast Russia. The orebodies are hosted within Late Jurassic–Early Cretaceous greenschist-facies metamorphosed rocks and structurally controlled by NW-trending fold-and-thrust dislocations. Based on geological exploration, petrographic, mineralogical, and geochronological studies, new data on the geological structure and composition of gold–quartz mineralization of the Upryamoye ore field are presented. Optical and scanning microscopy were used to study the lithological features of the host rocks and determine the ore textures and the morphology and internal structure of native gold, auriferous pyrite, and arsenopyrite. Qualitative and quantitative characterization of the ore minerals was carried out using SEM-EDS and EPMA. To determine the age of the gold mineralization, Re-Os dating of arsenopyrite and U-Th/He dating of pyrite were performed. The results show that the orebodies comprise carbonate–quartz and sulphide–carbonate–quartz saddle reef veins in both the fold hinge and limbs, as well as mineralized shatter zones and mylonite zones that trace thrust faults. The main ore minerals are arsenopyrite and pyrite, associated with minor amounts of galena, sphalerite, chalcopyrite, tetrahedrite, and bournonite. Native gold is distributed extremely unevenly, forming thin and finely dispersed inclusions in pyrite and arsenopyrite. U-Th/He isotopic analyses of auriferous pyrites suggest that gold mineralization in the Upryamoye ore field occurred at 123 ± 4 Ma. The data obtained by Re–Os dating of auriferous arsenopyrite are inconsistent with direct geological observations but indicate that Os in the arsenopyrite was derived from the crustal source. According to a number of characteristic features of mineralization, the Upryamoye ore field is attributed to a metamorphic genetic type of orogenic low-sulphide gold–quartz deposits. The ore-forming process was long and multi-stage, occurring during the final collisional phase and the beginning of the extensional phase of the Chukotka orogen. Full article
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