Special Issue "Role of Magmatic Activity in Generation of Ore Deposits"

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

Deadline for manuscript submissions: 31 July 2019

Special Issue Editors

Guest Editor
Prof. Dr. Charles Stern

University of Colorado at Boulder, Department of Geological Sciences, Boulder, USA
Website | E-Mail
Interests: igneous petrology; geochemistry; volcanology; ore deposits; geoarchaeology
Guest Editor
Dr. Alexandra Skewes

Department of Geological Sciences, University of Colorado at Boulder, Boulder, USA
Website | E-Mail
Interests: ore deposits; geochemistry; petrology; fluid inclusions

Special Issue Information

Dear Colleagues,

Magmas may supply the metals, the magmatic/hydrothermal volatile solutions that transport metals, or the heat to drive hydrothermal convection systems that redistribute and deposit metals in a wide range of different types of ore deposits. These include, among others, strictly magmatic deposits, such as Pt, in large layered igneous intrusions and some magmatic Fe/Cu/Au ore, magmatic/hydrothermal IOGC, and Cu/Mo/Au porphyry and breccia deposit, epithermal and skarn Au/Ag deposits, and REE ores. Since different types of magmas are generated in different tectonic environments, the types of ore deposits associated with these environments also vary. This Special Issue will focus on the multiple roles of magmas in the generation of a wide range of ore deposits, highlighting the diversity of processes that generate economic ore deposits associated in some fashion with igneous rocks. The issue will bring together new research results and conceptual models of ore deposit formation in the ever-evolving field of economic geology as a contribution to increasing our understanding of the complexity of processes related to the genesis of ore deposits and their relation to magma genesis and evolution.

Prof. Dr. Charles Stern
Dr. Alexandra Skewes
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 papers will be 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 1400 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

  • ore deposits
  • magmas
  • magmatic/hydrothermal activity
  • magmatic ores
  • IOCG
  • porphyry
  • breccia
  • skarn
  • epithermal

Published Papers (1 paper)

View options order results:
result details:
Displaying articles 1-1
Export citation of selected articles as:

Research

Open AccessArticle
Granitoids of the Ergelyakh Intrusion-Related Gold–Bismuth Deposit (Kular-Nera Slate Belt, Northeast Russia): Petrology, Physicochemical Parameters of Formation, and Ore Potential
Minerals 2019, 9(5), 297; https://doi.org/10.3390/min9050297
Received: 17 January 2019 / Revised: 30 April 2019 / Accepted: 8 May 2019 / Published: 15 May 2019
PDF Full-text (8972 KB)
Abstract
This paper describes features of petrographic and chemical compositions and isotopic dating of the Ergelyakh and Sokh plutons, located within the Kular-Nera slate belt, Verkhoyansk-Kolyma folded region (VKFR), Northeast Russia. Intrusion of the massifs took place approximately 145–150 million years ago. Different isotopic [...] Read more.
This paper describes features of petrographic and chemical compositions and isotopic dating of the Ergelyakh and Sokh plutons, located within the Kular-Nera slate belt, Verkhoyansk-Kolyma folded region (VKFR), Northeast Russia. Intrusion of the massifs took place approximately 145–150 million years ago. Different isotopic systems on the whole rock samples and mineral separates record at least two stages of later tectono-magmatic activity 130–120 and 110–100 million years ago. Granitoid magmas for the Ergelyakh and Sokh plutons were formed at high temperatures (950–1060 °C) within the amphibolitic lower crust of an island arc setting. The ages of crustal protoliths for granitoids of the Ergelyakh intrusion-related gold–bismuth deposit, calculated on Rb–Sr and Sm–Nd two-stage models, are 1109–1383 and 1199–1322 million years, respectively. Formation of the Ergelyakh and Sokh plutons took place within a significant temperature interval (<450 to 901 °С) and, with regard to the superposition of later events, lasted for a long time. During the cooling process of granitoid melts, at the time of biotite crystallization in both massifs, a significant increase of oxygen fugacity was registered. The ore potential of granitoids of both massifs seems to be similar, but due to some differences in the physicochemical parameters of their formation (redox conditions), it was partially realized only within the Ergelyakh massif with the generation of several minor intrusion-related gold–bismuth deposits. Granitoid melts of the Ergelyakh massif were formed in relatively heterogeneous and oxidizing conditions (∆Ni–NiO = +3.26 to –3.60). Granitoid melts for the Sokh massif (∆Ni–NiO = –2.88 to –9.27) were formed in reducing conditions. Full article
(This article belongs to the Special Issue Role of Magmatic Activity in Generation of Ore Deposits)
Minerals EISSN 2075-163X Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top