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Advances in Mantle–Crust Interactions for Petrogenesis and Ore-Forming Processes
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Advances in Mantle–Crust Interactions for Petrogenesis and Ore-Forming Processes

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

Deadline for manuscript submissions: 31 December 2024 | Viewed by 2051

Special Issue Editors

Dr. Feng Huang

E-Mail Website
Guest Editor
State Key Laboratory of Geological Processes and Mineral Resources, School of Earth Science and Resources, China University of Geosciences, Beijing 100083, China
Interests: isotope geochemistry; igneous petrology; mineralogy chemistry; geochronology; Tethyan evolution
Dr. Liang Guo

E-Mail Website
Guest Editor
State Key Laboratory of Geological Processes and Mineral Resources, School of Earth Sciences, China University of Geosciences, Wuhan 430074, China
Interests: composition of continental crust; arc magmatism; igneous rocks; Tethyan evolution
Dr. Xiyao Li

E-Mail Website
Guest Editor
Key Lab of Submarine Geosciences and Prospecting Techniques, MOE and College of Marine Geosciences, Ocean University of China, Qingdao 266100, China
Interests: magmatic processes; magma dynamics
Dr. Zhiwei Wang

E-Mail Website
Guest Editor
Hebei Key Laboratory of Strategic Critical Mineral Resources, College of Earth Sciences, Hebei GEO University, Shijiazhuang 050031, China
Interests: isotope geochemistry; igneous petrology; geochronology; central Asian Orogenic Belt evolution; supercontinent evolution
Special Issues, Collections and Topics in MDPI journals
Dr. Vinod O. Samuel

E-Mail
Guest Editor
Department of Earth System Sciences, Yonsei University, Seoul 03722, Republic of Korea
Interests: petrology; geochemistry; tectonics; magmatism; metamorphism; metasomatism; fluids; pseudosection modeling

Special Issue Information

Dear Colleagues,

Mantle–crust interactions are the central focus of petrological research. Enhanced rock sampling and analytical advancements empower geologists to discern the intricate material exchange processes within the deep lithosphere. Whether through the disruption of ancient cratons or the upwelling of mantle-derived materials during continental collision orogenic events, these interactions profoundly reshape the lithospheric structure and composition. For example, the replacement of ancient lithospheric material with juvenile counterparts and the continuous growth and thickening of the crust occur. In addition, mantle–crust interactions provide vital ore-forming materials and requisite physical-chemical conditions, such as temperature, pressure, and oxygen fugacity, crucial for mineralization. Recognizing these interactions is pivotal for understanding petrogenesis and mineralization, contributing significantly to advances in petrology and ore-forming processes. This Special Issue aims to address, but is not limited to, the following topics:

  1. Developing geochemical indicators for identifying mantle–crust interactions in magmatic processes.
  2. Investigating variations in the strength of mantle–crust interactions during lithospheric evolution and their geodynamic processes.
  3. Determining the origin of ore-forming materials in specific magmatic deposits—whether from the mantle, crust, or a combination of both.
  4. Identifying the magmatic evolution processes (e.g., magma mixing, assimilation, and fractional crystallization) during magma ascent and emplacement and their impacts on petrogenesis and mineralization.

Dr. Feng Huang
Dr. Liang Guo
Dr. Xiyao Li
Dr. Zhiwei Wang
Dr. Vinod Samuel
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

  • mantle–crust interactions
  • petrology
  • geochemistry
  • magmatic evolution
  • mineralization

Published Papers (3 papers)

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Research

26 pages, 14806 KiB  
Article
Genesis of Fe-Ti-(V) Oxide-Rich Rocks by Open-System Evolution of Mafic Alkaline Magmas: The Case of the Ponte Nova Massif, SE Brazil
by Amanda Andrade de Souza, Rogério Guitarrari Azzone, Luanna Chmyz, Lina Maria Cetina Tarazona, Fábio Ramos Dias de Andrade, José Vinicius Martins, Excelso Ruberti and Celso de Barros Gomes
Minerals 2024, 14(7), 724; https://doi.org/10.3390/min14070724 - 19 Jul 2024
Viewed by 387
Abstract
The formation of Fe-Ti oxides-rich layers is commonly associated with open-system magma chamber dynamics. These processes are widely discussed due to the economic importance of Fe-Ti-(V) deposits, although an alkaline-system approach to the matter is still scarce. In this study, we use petrography, [...] Read more.
The formation of Fe-Ti oxides-rich layers is commonly associated with open-system magma chamber dynamics. These processes are widely discussed due to the economic importance of Fe-Ti-(V) deposits, although an alkaline-system approach to the matter is still scarce. In this study, we use petrography, mineral chemistry, X-ray diffraction and elemental geochemical analyses (whole-rock and Sr isotopes) to discuss the process associated with the formation of Fe-Ti-(V) oxide-rich clinopyroxenite (OCP, 7–15 vol.%) and magnetitite (MTT, 85 vol.%) from the Ponte Nova alkaline mafic–ultramafic massif (PN, K-Ar 87.6 Ma). Ilmenite and Ti-magnetite from both OCP and MTT exhibit higher MgO contents (MgO > 5.0 wt%) than other PN rocks. OCP shows high 87Sr/86Sri ratios, equivalent to crustal-contaminated lithotypes of the PN Central Intrusion, while MTTs are less radiogenic. The oxide supersaturation in silicate mafic magmas is typically associated with the dislocation of the liquid cotectic evolution line, shifting to Fe-Ti-(V) oxide minerals stability field, mainly Ti-magnetite. Different magmatic processes can lead to these changes such as crustal contamination and magma recharge. For the PN massif, the OCP was formed by the assimilation of crustal contaminants in a mush region, near the magma chamber upper walls, which was associated with the evolution of the main pulse. Differently, the MTT would have its origin related to the interaction between magma chamber evolved liquids and more primitive liquids during a new episode of magma recharge. Lastly, post-magmatic events were superimposed on these rocks, generating sulfides. Full article
(This article belongs to the Special Issue Advances in Mantle–Crust Interactions for Petrogenesis and Ore-Forming Processes)
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33 pages, 6968 KiB  
Article
Mineralogy and Geochemistry of Jasperoid Veins in Neoproterozoic Metavolcanics: Evidence of Silicification, Pyritization and Hematization
by Mohamed Zaki Khedr, Mahmoud A. Sayed, Shehata Ali, Mokhles K. Azer, Yuji Ichiyama, Eiichi Takazawa, Ali Y. Kahal, Kamal Abdelrahman and Ali M. Mahdi
Minerals 2024, 14(7), 647; https://doi.org/10.3390/min14070647 - 25 Jun 2024
Viewed by 743
Abstract
The Wadi Ranga sulfidic jasperoids in the Southern Eastern Desert (SED) of Egypt are hosted within the Neoproterozoic Shadli metavolcanics as an important juvenile crustal section of the Arabian Nubian Shield (ANS). This study deals with remote sensing and geochemical data to understand [...] Read more.
The Wadi Ranga sulfidic jasperoids in the Southern Eastern Desert (SED) of Egypt are hosted within the Neoproterozoic Shadli metavolcanics as an important juvenile crustal section of the Arabian Nubian Shield (ANS). This study deals with remote sensing and geochemical data to understand the mechanism and source of pyritization, silicification, and hematization in the host metavolcanics and to shed light on the genesis of their jasperoids. The host rocks are mainly dacitic to rhyolitic metatuffs, which are proximal to volcanic vents. They show peraluminous calc-alkaline affinity. These felsic metatuffs also exhibit a nearly flat REE pattern with slight LREE enrichment (La/Yb = 1.19–1.25) that has a nearly negative Eu anomaly (Eu/Eu* = 0.708–0.776), while their spider patterns display enrichment in Ba, K, and Pb and depletion in Nb, Ta, P, and Ti, reflecting the role of slab-derived fluid metasomatism during their formation in the island arc setting. The ratios of La/Yb (1.19–1.25) and La/Gd (1.0–1.17) of the studied felsic metatuffs are similar to those of the primitive mantle, suggesting their generation from fractionated melts that were derived from a depleted mantle source. Their Nb and Ti negative anomalies, along with the positive anomalies at Pb, K, Rb, and Ba, are attributed to the influence of fluids/melt derived from the subducted slab. The Wadi Ranga jasperoids are mainly composed of SiO2 (89.73–90.35 wt.%) and show wide ranges of Fe2O3t (2.73–6.63 wt.%) attributed to the significant amount of pyrite (up to 10 vol.%), hematite, goethite, and magnetite. They are also rich in some base metals (Cu + Pb + Zn = 58.32–240.68 ppm), leading to sulfidic jasperoids. Pyrite crystals with a minor concentration of Ag (up to 0.32 wt.%) are partially to completely converted to secondary hematite and goethite, giving the red ochre and forming hematization. Euhedral cubic pyrite is of magmatic origin and was formed in the early stages and accumulated in jasperoid by epigenetic Si-rich magmatic-derived hydrothermal fluids; pyritization is considered a magmatic–hydrothermal stage, followed by silicification and then hematization as post-magmatic stages. The euhedral apatite crystals in jasperoid are used to estimate the saturation temperature of their crystallization from the melt at about 850 °C. The chondrite (C1)-normalized REE pattern of the jasperoids shows slightly U–shaped patterns with a slightly negative Eu anomaly (Eu/Eu* = 0.43–0.98) due to slab-derived fluid metasomatism during their origin; these jasperoids are also rich in LILEs (e.g., K, Pb, and Sr) and depleted in HFSEs (e.g., Nb and Ta), reflecting their hydrothermal origin in the island arc tectonic setting. The source of silica in the studied jasperoids is likely derived from the felsic dyke and a nearby volcanic vent, where the resultant Si-rich fluids may circulate along the NW–SE, NE–SW, and E–W major faults and shear zones in the surrounding metavolcanics to leach Fe, S, and Si to form hydrothermal jasperoid lenses and veins. Full article
(This article belongs to the Special Issue Advances in Mantle–Crust Interactions for Petrogenesis and Ore-Forming Processes)
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27 pages, 13458 KiB  
Article
Zircon, Monazite SHRIMP U-Th-Pb and Quartz Oxygen Isotopic Results from the Higher Himalayan Crystallines (HHC) of the Sikkim Himalayas
by Shashank Prabha-Mohan, Ian S. Williams and Sandeep Singh
Minerals 2024, 14(6), 572; https://doi.org/10.3390/min14060572 - 30 May 2024
Viewed by 520
Abstract
Migmatites and partial melts are exposed in both the lower and upper package of the Higher Himalayan Crystallines (HHC) thrust sheet within the Sikkim Himalayas. Zircon monazite and quartz oxygen isotopic ratios from Yumthang Valley, North Sikkim, and Rathong Chuu, West Sikkim, have [...] Read more.
Migmatites and partial melts are exposed in both the lower and upper package of the Higher Himalayan Crystallines (HHC) thrust sheet within the Sikkim Himalayas. Zircon monazite and quartz oxygen isotopic ratios from Yumthang Valley, North Sikkim, and Rathong Chuu, West Sikkim, have been used to identify their sources and equilibrium conditions. Monazites show homogeneous growth, whereas zircons show growth rings. U-Th-Pb data on monazite only indicate the latest metamorphic event. However, zircons show metamorphic rim growth between 36 and 24 Ma over their detrital core with trailing growth from 22 Ma to 15 Ma. Pervasive fluids have been interpreted in coeval development during metamorphism, as shown by monazite and zircon c. 30 Ma. The Th/U ratio of zircon is higher and variable with weak residual zoning in the samples from higher elevations. Quartz–metamorphic zircon oxygen fractionation suggests Teq > 600 °C, while quartz–monazite fractionation shows the same or lower temperatures. Multiple sources of melts in the HHC (even along a single valley) have been observed by δ18O of 7‰ to 10‰ in zircon and 5‰ to 9‰ in monazite. Zircon and monazite generated in the same rock have similar δ18O values. Monazite grown ~20 Ma in the lower elevation sample had a low δ18O, suggesting interaction with an external fluid. Full article
(This article belongs to the Special Issue Advances in Mantle–Crust Interactions for Petrogenesis and Ore-Forming Processes)
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Planned Papers

The below list represents only planned manuscripts. Some of these manuscripts have not been received by the Editorial Office yet. Papers submitted to MDPI journals are subject to peer-review.

1. Zhi-Xin Han et. al Metallogenic significance of monzonite porphyry and magmatic tectonism in Zhangjiawa skarn-type iron deposit, western Shandong, North China Craton

2. Hao-Yuan Lan et. alGeochronology and geochemistry of granites in the Qianliyan Island: response to collision and assembly of the South and North China blocks

3. Li-Jie Jin et. al Petrogenesis of the Early Cretaceous diorite porphyrite in the Xintai region of southwest Shandong, North China Craton: constrains from geochemistry, mineralogy and Sr-Nd-Hf isotopes

4. Ling Chen et. al Petrogenesis and tectonic implications of the early Paleozoic plutons in the Sheshan of the Dayaoshan Uplift, south China

5. Shashank Prabha-Mohan, Ian S. Williams, Sandeep Singh. Zircon, Monazite SHRIMP U-Th-Pb and Quartz Oxygen Isotopic Results from the Higher Himalayan Crystallines (HHC) of the Sikkim Himalayas, India

 

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