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Minerals, Volume 12, Issue 5

May 2022 - 163 articles

Cover Story: Magnetite (Fe2+Fe3+2O4) crystal cells contain Fe atoms in tetrahedral and octahedral sites and crystallize in the spinel structure with a face-centered cubic cell. Under geological conditions, the structure is modified by natural defects formed during crystallization, and those produced during the alpha decay of U, Th, and Sm isotopes present naturally. The produced radiogenic 4He atoms are incorporated into different atomic interstitial sites and defect sites and diffuse by hopping between those sites depending on the temperature. To quantify the natural and radiation defect on He diffusion, a theoretical investigation of energy mapping along the diffusion paths has been conducted using the energy density functional theory, which allows calculating the migration energy as shown in the figure. View this paper
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Articles (163)

  • Article
  • Open Access
4 Citations
3,041 Views
17 Pages
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Geochemistry of Mudstones/Silty Mudstones from the Qigequan Formation and Shizigou Formation in Yuejin-II Area, Southwestern Area of the Qaidam Basin: Implications for Sedimentary Environment and Sandstone-Type Uranium Mineralization

  • Cong Ao,
  • Xue-Ming Teng,
  • Xue-Bin Wei,
  • Tao Lei,
  • Duo Wang and
  • Jun Yang
Minerals2022, 12(5), 658;https://doi.org/10.3390/min12050658

23 May 2022

The Qaidam Basin has been the focus of sandstone-type uranium prospecting since the 1950s. In recent years, relying on the uranium geological survey project supported by the China Geological Survey, and the cooperation with the Qinhai oil company, dr...

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  • Article
  • Open Access
7 Citations
3,389 Views
27 Pages
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Petrochronological Evidence for a Three-Stage Magmatic Evolution of the Youngest Nepheline Syenites from the Ditrău Alkaline Massif, Romania

  • Urs Klötzli,
  • Jolanta Burda,
  • Qiu-Li Li,
  • Yu Liu,
  • Gyula Jakab,
  • Lucian Ionescu and
  • Paul Tibuleac
Minerals2022, 12(5), 657;https://doi.org/10.3390/min12050657

23 May 2022

The Ditrău Alkaline Massif (DAM) is an igneous massif in the Eastern Carpathian Mountains of Romania. Numerous geochronological and geochemical studies have proposed a long formation history (ca. 70 m.y.) of the DAM from Middle Triassic to Creta...

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  • Article
  • Open Access
3 Citations
2,478 Views
19 Pages
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Zircon U-Pb-Hf Isotopes, Biotite 40Ar/39Ar Geochronology, and Whole-Rock Geochemistry of the Baogeqi Gabbro in the Northern Alxa, Southernmost Central Asian Orogenic Belt

  • Shaohua Zhang,
  • Chiyang Liu,
  • Jianqiang Wang,
  • Jianke Bai,
  • Xiaochen Zhao,
  • Long Zhang,
  • Nan Jia,
  • Lijun Song and
  • Heng Peng
Minerals2022, 12(5), 656;https://doi.org/10.3390/min12050656

23 May 2022

The final closure time of the Paleo-Asian Ocean and the Permo-Carboniferous tectonic settings in the northern Alxa are very important but controversial tectonic issues. The geochronology and petrogenesis of mafic igneous rocks are superior in clarify...

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  • Article
  • Open Access
3 Citations
2,470 Views
12 Pages
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Potential Use of Municipal Waste Incineration Ash as a Hardening Slurry Ingredient

  • Paweł Falaciński and
  • Łukasz Szarek
Minerals2022, 12(5), 655;https://doi.org/10.3390/min12050655

23 May 2022

In recent years, there has been a marked increase in the amount of municipal waste generated in Poland. In the context of circular economy assumptions, the key is the availability of technologies that would make it possible to safely process and reus...

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  • Article
  • Open Access
10 Citations
2,490 Views
19 Pages
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Evolution Characteristics of Overlying Strata Fractures in Paste Composite Filling Stope

  • Wenyu Lv,
  • Kai Guo,
  • Haijin Wang,
  • Kun Feng and
  • Dongdong Jia
Minerals2022, 12(5), 654;https://doi.org/10.3390/min12050654

22 May 2022

Paste composite filling mining (PCFM) is one of the effective ways to achieve water-preserved mining (preservation of the waterproof strata). To investigate the laws of fracture propagation of the overlying strata in the PCFM stope, a kinematic model...

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  • Article
  • Open Access
2 Citations
2,484 Views
13 Pages
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Geophysical Implications for Prospective Prediction of Copper Polymetallic Ore Bodies: Northern Margin of Alxa Block, China

  • Yinsheng Meng,
  • Xiaoqiang Chen,
  • Wenguo Wang,
  • Ruihong Li and
  • Gang Wang
Minerals2022, 12(5), 653;https://doi.org/10.3390/min12050653

22 May 2022

The Alxa Block is located in the middle part of the Central Asian orogenic belt, which is the coupling belt of the North China, Tarim, and Kazakhstan Plates. The east–west-trending deep faults control stratigraphic distribution and magmatic act...

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  • Article
  • Open Access
4 Citations
2,898 Views
21 Pages
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Geological Significance of Late Permian Magmatic Rocks in the Middle Section of the Ailaoshan Orogenic Belt, SW China: Constraints from Petrology, Geochemistry and Geochronology

  • Yaoyao Zhang,
  • Kai Liu,
  • Ye Wang,
  • Da Zhang,
  • Xuanxue Mo,
  • Yuefei Deng,
  • Tingxi Yu and
  • Zenan Zhao
Minerals2022, 12(5), 652;https://doi.org/10.3390/min12050652

21 May 2022

The Ailaoshan orogenic belt, located in the SE margin of the Qinghai–Tibet Plateau, is an important Paleo-Tethys suture zone in the eastern margin of the Sanjiang Tethys tectonic domain. The areas of Mojiang and Zhenyuan, located in the middle...

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  • Article
  • Open Access
6 Citations
3,149 Views
13 Pages
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Boron Impurity Deposition on a Si(100) Surface in a SiHCl3-BCl3-H2 System for Electronic-Grade Polysilicon Production

  • Qinghong Yang,
  • Fengyang Chen,
  • Lin Tian,
  • Jianguo Wang,
  • Ni Yang,
  • Yanqing Hou,
  • Lingyun Huang and
  • Gang Xie
Minerals2022, 12(5), 651;https://doi.org/10.3390/min12050651

21 May 2022

A study of boron impurities deposited on a Si(100) surface in a SiHCl3-BCl3-H2 system is reported in this paper, using periodic density functional theory with generalized gradient approximation (GGA). The results show that the discrete distances of B...

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  • Article
  • Open Access
5 Citations
3,037 Views
19 Pages
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Peculiarities of Dynamics of Hypergenic Mineral Transformation of Nickel Weathering Crusts of Ultramafic Rocks of the Kempirsay Group of Deposits in Western Kazakhstan

  • Valeriy Korobkin,
  • Iskander Samatov,
  • Akhan Chaklikov and
  • Zhamal Tulemissova
Minerals2022, 12(5), 650;https://doi.org/10.3390/min12050650

20 May 2022

Nickel weathering ores are used to produce metallic nickel, stainless steels, and nickel sulfate, the main component of batteries. The global production of nickel from weathering ores is increasing and has surpassed production from sulfide magmatic d...

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  • Article
  • Open Access
5 Citations
2,967 Views
30 Pages
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Microwave Dewatering of Gibbsite-Type Bauxite Ores: Permittivities, Heating Behavior and Strength Indices

  • Christopher Pickles and
  • Ting Lu
Minerals2022, 12(5), 648;https://doi.org/10.3390/min12050648

20 May 2022

Microwave radiation is a relatively new energy source that is being considered for several applications in mineral processing and extractive metallurgy. In the present research, various gibbsite-type bauxite ores were subjected to microwave radiation...

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