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Editorial for Special Issue “Geochemistry of Travertines and Calcareous Tufas” Minerals (IF 2.5) Pub Date : 2024-04-24 Francesca Giustini, Mauro Brilli
Travertine and calcareous tufa are the lithological terms generally used to describe continental carbonates [...]
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Oxide Reduction Treatment with a Thermal Plasma Torch: A Case Study Minerals (IF 2.5) Pub Date : 2024-04-24 Mohammed El Khalloufi, Gervais Soucy
This article presents the findings of a study on oxide reduction utilizing a novel reducing plasma torch, employing greenhouse gases such as CO2 and CH4 as plasma gases. The primary aim of this investigation is to establish the viability of this approach. The innovative plasma torch was employed to reduce various oxides, including aluminum oxide, iron oxide, and titanium oxide, as well as a mixed oxide
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New Insights in Metallurgical Manufacturing in the Caucasian Area: The Case Study of Artefacts from the Samshvilde Citadel Ruins (South Georgia) Minerals (IF 2.5) Pub Date : 2024-04-24 Natalia Rovella, Maria Pia Albanese, Maria Francesca Alberghina, Salvatore Schiavone, Michela Ricca, David Berikashvili, Levan Kvakhadze, Shota Tvaladze, Alberto Figoli, Mauro Francesco La Russa
An archaeometric approach was applied to the study of the hoard found in the Samshvilde fortress, one of the richest areas of archaeological artefacts in Caucasian Georgia, since it is representative of the historical events from the Neolithic period until the most recent epochs. In this context, four coins dated back to the 12th–13th centuries AD to the reign of King Giorgi III, Queen Tamar, and King
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Sedimentological and Geochemical Characterization of the Early Cambrian Eastern Yunnan, Southwestern China Minerals (IF 2.5) Pub Date : 2024-04-24 Xiaoxia Peng, Zexin Fang, Xin Cheng, Ling Guo, Jianni Liu
The accurate reconstruction of the early Cambrian paleoclimate and paleoceanographic conditions on the Yangtze Plate is crucial for understanding the ancient environment during the Cambrian Explosion. It is also a key factor in understanding the ecological habits of organisms during the Cambrian Explosion. The study utilized field outcrops, thin section analysis, and major and trace elements to investigate
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Sensor Technologies for Safety Monitoring in Mine Tailings Storage Facilities: Solutions in the Industry 4.0 Era Minerals (IF 2.5) Pub Date : 2024-04-24 Carlos Cacciuttolo, Valentina Guzmán, Patricio Catriñir, Edison Atencio
The recent tailings storage facility (TSF) dam failures recorded around the world have concerned society in general, forcing the mining industry to improve its operating standards, invest greater economic resources, and implement the best available technologies (BATs) to control TSFs for safety purposes and avoid spills, accidents, and collapses. In this context, and as the era of digitalization and
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Agate Mineralization in Paleoproterozoic Organic Carbon-Rich Sedimentary Rocks of the Onega Basin (NW Russia): Insights into Genesis Minerals (IF 2.5) Pub Date : 2024-04-24 Evgeniya N. Svetova, Sergei A. Svetov, Oleg B. Lavrov
In this contribution, we present the results of mineralogical investigation of the agates in Paleoproterozoic organic carbon-rich sedimentary rocks within the Onega Basin (Fennoscandian shield, Russia) aimed at reconstructing the agate-forming processes. Optical and scanning electron microscopy, EDS microanalysis, thermal analysis, X-ray powder diffraction, Raman spectroscopy, and carbon isotope analysis
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Minerals of the Au-Cu-Ag System in Grains from the Placers of the Olkhovaya-1 River (Eastern Kamchatka, Russia) Minerals (IF 2.5) Pub Date : 2024-04-24 Galina A. Palyanova, Tatiana V. Beliaeva, Dmitry P. Savelyev, Yurii V. Seryotkin
Heterogeneous grains in the heavy fractions of the placers of the Olkhovaya-1 river (Kamchatka Cape Peninsula, Eastern Kamchatka, Russia) containing Au-Ag, Au-Cu, and Au-Ag-Cu particles were analyzed using scanning electron microscopy, electron-probe microanalysis, and X-ray powder diffractometry. The analyses showed that auricupride dominates in some grains, whereas in others, the main phases are
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Metabasites from the Central East Kunlun Orogenic Belt Inform a New Suture Model for Subduction and Collision in the Early Paleozoic Proto-Tethys Ocean Minerals (IF 2.5) Pub Date : 2024-04-24 Feng Chang, Guibin Zhang, Lu Xiong, Shuaiqi Liu, Shuzhen Wang, Yixuan Liu
The discovery of eclogite outcrops in the East Kunlun Orogen Belt (EKOB) has confirmed the existence of an Early Paleozoic HP-UHP metamorphic belt. However, the protoliths and metamorphic histories of widespread metabasites remain poorly constrained. We collected three types of metabasites from the central part of EKOB. We present an integrated study of petrography, whole-rock geochemistry, Sr-Nd isotopes
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An Automated Approach to the Heterogeneity Test for Sampling Protocol Optimization Minerals (IF 2.5) Pub Date : 2024-04-22 Gabriela Cardoso Prado, Ana Carolina Chieregati, Simon C. Dominy
The fundamental sampling error is one of the sampling errors defined by Pierre Gy’s Theory of Sampling and is related to the constitution heterogeneity of the mineralisation. Even if a sampling procedure is considered ideal or perfect, this error will still exist and, therefore, cannot be eliminated. A key input into Gy’s fundamental sampling error equation is intrinsic heterogeneity. The intrinsic
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Open-Pit Pushback Optimization by a Parallel Genetic Algorithm Minerals (IF 2.5) Pub Date : 2024-04-23 Felipe Navarro, Nelson Morales, Carlos Contreras-Bolton, Carlos Rey, Victor Parada
Determining the design of pushbacks in an open-pit mine is a key part of optimizing the economic value of the mining project and the operational feasibility of the mine. This problem requires balancing pushbacks that have good geometric properties to ensure the smooth operation of the mining equipment and so that the scheduling of extraction maximizes the economic value by providing early access to
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Editorial for Special Issue “Advances on Fine Particles and Bubbles Flotation” Minerals (IF 2.5) Pub Date : 2024-04-23 Liuyi Ren
The froth-flotation process allows for the separation of solid particles according to differences in their physical and surface-chemistry properties [...]
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Mantle Sources and Geochemical Evolution of the Picture Gorge Basalt, Columbia River Basalt Group Minerals (IF 2.5) Pub Date : 2024-04-23 Emily B. Cahoon, Martin J. Streck, Richard W. Carlson, Ilya N. Bindeman
The Columbia River Basalt Group (CRBG) is the youngest continental flood basalt province, proposed to be sourced from the deep-seated plume that currently resides underneath Yellowstone National Park. If so, the earliest erupted basalts from this province, such as those in the Picture Gorge Basalt (PGB), aid in understanding and modeling plume impingement and the subsequent evolution of basaltic volcanism
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Recovery of Apatite from Magnetic Concentration Tailings by Flotation Minerals (IF 2.5) Pub Date : 2024-04-23 Luis Valderrama, Osvaldo Gómez, Osvaldo Pavez, Mario Santander
Iron concentration tailings contain many valuable minerals, including apatite, which is not currently being recovered despite its use to make fertilizers and chemicals. This article proposes a flotation circuit to recover apatite from tailings generated by mining in Chile, based on laboratory tests and using the “Split Factor” method. The iron tailings were characterized by granulometry, chemical and
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Mechanical Characteristics and Macro–Microscopic Response Mechanisms of Cemented Paste Backfill under Different Curing Temperatures Minerals (IF 2.5) Pub Date : 2024-04-22 Chao Zhang, Abbas Taheri, Cuifeng Du, Wenhao Xia, Yuye Tan
Macroscopic and microscopic properties of cemented paste backfill (CPB) were studied through uniaxial compressive testing, acoustic emission (AE) monitoring, and microscopic feature analysis. The research shows that the uniaxial compressive strength (UCS) and elastic modulus have an exponential function type positive correlation with the increase in curing time and a polynomial function type with the
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Genesis of the Mahour Base Metal Deposit, Iran: Constraints from Fluid Inclusions and Sulfur Isotopes Minerals (IF 2.5) Pub Date : 2024-04-22 Zahra Moradiani, Majid Ghaderi, Hossein-Ali Tajeddin, Pura Alfonso
The Mahour base metal deposit is located northeast of Badroud in the middle of the Urumieh–Dokhtar magmatic arc in the Isfahan province of Iran. The main host rocks to the ores are Eocene volcanic and volcaniclastic rocks. Hypogene ore minerals constituting the main ore body are galena, sphalerite, pyrite, and chalcopyrite. In addition to gangue quartz, a variety of supergene minerals comprising gypsum
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Simultaneous U–Pb and U–Th Dating Using LA-ICP-MS for Young (<0.4 Ma) Minerals: A Reappraisal of the Double Dating Approach Minerals (IF 2.5) Pub Date : 2024-04-22 Hisatoshi Ito
Simultaneous U–Pb and U–Th dating using laser ablation-inductively coupled plasma-mass spectrometry (LA-ICP-MS) was performed on the ca. 0.1 Ma Toya tephra and the ca. 0.08 Ma SS14-28 U–Th zircon reference material. In U–Pb dating, both Th/U and Pa/U partitioning between magma and minerals were considered. In U–Th dating, both abundance sensitivity and molecular interferences on 230Th were reevaluated
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Research on the Grinding Process of Superhard Particles in the Fluidized Bed Opposed Jet Mill Based on the CFD-DEM Methodology Minerals (IF 2.5) Pub Date : 2024-04-22 Lingling Shen, Xiao Jiang, Xuedong Liu, Hongmei Liu, Siduo Song, Qiuge Han, Xu He
The process of superhard particle breakage in the grinding zone of the fluidized bed opposed jet mill is investigated using the CFD-DEM (computational fluid dynamics-discrete element method) coupling method with the Tavares UFRJ Breakage Model in the present study. The effects of structural and operational parameters, such as target plate structure, nozzle position, air inlet velocity, and feed rate
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The Influences of O2 Availability on the Microbial Activities and Fe Transformations in the Iron Formation Caves of the Southern Espinhaço Range, Brazil Minerals (IF 2.5) Pub Date : 2024-04-20 Melissa K. Mulford, Anela Mukherjee, Augusto S. Auler, Hazel A. Barton, John M. Senko
Over 3000 iron formation caves (IFCs) have formed in erosion-resistant Fe(III)-rich rocks throughout Brazil. Microbial Fe(III) reduction occurs in IFCs, where a microbe-rich, Fe(III)-depleted paste (sub muros) is found behind an Fe(III)-(hydr)oxide crust in the ceiling/walls. Microbial Fe(III) reduction in sub muros appears to be responsible for the transformation of Fe(III) to more soluble Fe(II)
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Swelling Stress of Bentonite: Thermodynamics of Interlayer Water in K-Montmorillonite in Consideration of Alteration Minerals (IF 2.5) Pub Date : 2024-04-21 Misato Endo, Haruo Sato
The buffer material that makes up the geological disposal system of high-level waste swells by contact with groundwater and seals space with rock mass and fractures in rock mass. The buffer material has a function of mechanical buffer with rock pressure, and swelling stress is important in this case. The alteration of bentonite may occur due to the initial replacement of cations (Na+ ions) in the interlayer
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Geological and Crystallochemical Characterization of the Margaritasite–Carnotite Mineral from the Uranium Region of Peña Blanca, Chihuahua, Mexico Minerals (IF 2.5) Pub Date : 2024-04-21 Fabián G. Faudoa-Gómez, Luis E. Fuentes-Cobas, Hilda E. Esparza-Ponce, Jesús G. Canche-Tello, Ignacio A. Reyes-Cortés, Maria E. Fuentes-Montero, Diane M. Eichert, Yair Rodríguez-Guerra, Maria-Elena Montero-Cabrera
Margaritasite is a mineral compound discovered in the early 1980s in Chihuahua, Mexico. It is a natural cesium uranyl vanadate found only, so far, in the Margaritas mine of the Peña Blanca highlands. In this work, a thorough characterization of the aforementioned mineral is presented. The portfolio of the techniques employed includes high-resolution X-ray diffraction, scanning electron microscopy with
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A New Nephrite Occurrence in Jiangxi Province, China: Its Characterization and Gemological Significance Minerals (IF 2.5) Pub Date : 2024-04-21 Xin Wei, Guanghai Shi, Xiaochong Zhang, Jiajing Zhang, Meiyu Shih
Nephrite is a very precious gemstone material. As a non-renewable resource, the discovery of new nephrite deposits and the study of the genesis of nephrite have aroused great interest. A new occurrence of nephrite known as Xinyu nephrite was discovered in Xinyu Country, Jiangxi province, China. Field investigations reveal that nephrite appears in a contact zone between the Mengshan composite granitic
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Cultivation of Microalgae (Scenedesmus sp.) Using Coal Mining Wastewater and Separation via Coagulation/Flocculation and Dissolved Air Flotation (DAF) Minerals (IF 2.5) Pub Date : 2024-04-20 Marcio Alexandre Nicknig, André Camargo de Azevedo, Henrique Alberton de Oliveira, Ivo André Homrich Schneider
Algae growth can be carried out in treated mine waters, providing biomass and helping to achieve the standards for water discharge. However, efficient separation of algae from the aqueous medium is crucial. The present work investigated the stability of Scenedesmus sp. in treated acid drainage from coal mining and assessed the harvesting of microalgae via coagulation/flocculation and dissolved air
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Reduction in Apparent Permeability Owing to Surface Precipitation of Solutes by Drying Process and Its Effect on Geological Disposal Minerals (IF 2.5) Pub Date : 2024-04-20 Tsugumi Seki, Kanta Hongo, Taiji Chida, Yuichi Niibori
Disposal tunnels in geological repositories are ventilated continuously for over 50 years until their closure. Under these conditions, an unsaturated zone of mixed liquid and gas phases forms around the tunnels. Moreover, drying is assumed to progress from the host rock to the tunnels. To understand these drying processes, this study investigated the migration and precipitation of solutes via capillary
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Identification of the Sedimentary Sources and Origin of Uranium for Zhiluo Formation of the Tarangaole U Deposit, Northeastern Ordos Basin Minerals (IF 2.5) Pub Date : 2024-04-20 Guang-Yao Li, Chun-Ji Xue, Qiang Zhu, Jian-Wen Yang, Xiao-Bo Zhao
The large-sized Tarangaole uranium deposit and its neighboring Daying and Nalinggou deposits, located in the northeastern margin of the Ordos Basin, constitutes a major uranium resource base in northern China. In order to further clarify the sedimentary material source, uranium source and regional sediment–tectonic setting of the uranium-fed clastic rocks (i.e., Zhiluo Formation(J2z)) in the district
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Indirect Freeze Crystallization—An Emerging Technology for Valuable Resource Recovery from Wastewater Minerals (IF 2.5) Pub Date : 2024-04-20 Kagiso S. More, Mlungisi Mahlangu
This paper explores the efficiency and potential of indirect freeze crystallization (IFC) as a valuable resource-recovery technology in wastewater treatment, particularly focusing on acid mine water and hazardous material wastewater-treatment plants. Wastewater treatment poses challenges to recovering valuable resources effectively, enforcing the need for sustainable and resource-efficient technologies
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Optimization of Ratio and Hydration Mechanism of Titanium-Extracted Residual Slag-Based Filling Cementitious Materials Minerals (IF 2.5) Pub Date : 2024-04-18 Jielin Li, Ao Li, Jianzhang Hao, Jiye Xu, Ming Li, Keping Zhou
Using metallurgical solid waste Titanium-extracted Residual Slag (TRS) as mine-filling cementitious material is crucial to reduce the filling cost and promote the utilization of solid waste resources. In this paper, taking the strength of the backfill at different curing ages as the response target, the Design-expert mixing design was used to optimize the proportioning experiment of titanium-extracted
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Numerical Simulation Analysis of Control Factors on Acoustic Velocity in Carbonate Reservoirs Minerals (IF 2.5) Pub Date : 2024-04-19 Jiahuan He, Wei Zhang, Dan Zhao, Nong Li, Qiang Kang, Kunpeng Cai, Li Wang, Xin Yao, Guanqun Wang, Bi’an Dong, Wei Li, Hongbin Chen, Wei Long
The conventional Archie formula struggles with the interpretation of water saturation from resistivity well log data due to the increasing complexity of exploration targets. This challenge has prompted researchers to explore alternative physical parameters, such as acoustic characteristics, for breakthroughs. Clarifying the influencing factors of porous media acoustic characteristics is one of the
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Conditions and Mechanism of Crystallization of Hydrous W-Fe Oxides with a Pyrochlore-Type of Structure (Elsmoreite Group) in the Oxidation Zone of Ore Deposits Minerals (IF 2.5) Pub Date : 2024-04-19 Mihail Tarassov, Eugenia Tarassova
The purpose of the article is to elucidate the conditions and mechanism of crystallization of W-Fe oxide minerals with a pyrochlore-type structure (formerly ferritungstite, now elsmoreite group minerals) based on (1) a study of representative samples of secondary tungsten minerals from the oxidation zone of the Grantcharitsa tungsten deposit (Bulgaria) and (2) laboratory experiments under conditions
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Geodynamic Settings of Late Paleozoic–Early Mesozoic Granitoid Magmatism at the Arctic Continental Margins: Insights from New Geochronological and Geochemical Data from the Taimyr Peninsula Minerals (IF 2.5) Pub Date : 2024-04-19 Mikhail Yu. Kurapov, Dmitry L. Konopelko, Yuriy S. Biske, Vasiliy F. Proskurnin, Sergei V. Petrov, Maria A. Proskurnina, Yevgeny Yi. Berzon, Victoria B. Ershova, Stepan V. Berzin, Sergey Yu. Stepanov
Despite significant progress in Arctic geological studies, a number of principal questions concerning the Paleozoic collisional events remain unanswered. Therefore, the Taimyr Peninsula, representing the only outcropped high Arctic region where magmatic complexes, formed by Hercynian collision between the Siberian Craton and the Kara Block, are well exposed, is crucially important. In this paper we
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Application of Stacking Ensemble Learning in Predicting Copper’s Flotation Concentrate Grade Minerals (IF 2.5) Pub Date : 2024-04-19 Chengzhe Yin, Leming Ou
Addressing issues such as a low operational condition recognition efficiency, strong subjectivity, and significant fluctuations in Outotec X fluorescence analysis data in copper flotation production, a copper concentrate grade classification model is constructed based on image processing technology and the Stacking ensemble learning algorithm. Firstly, a feature extraction model for copper concentration
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Characterization of a Nickel Sulfide Concentrate and Its Implications on Pentlandite Beneficiation Minerals (IF 2.5) Pub Date : 2024-04-18 Linda D. Ayedzi, Massimiliano Zanin, William Skinner, George B. Abaka-Wood
In anticipation of future demands, a comprehensive understanding of the chemical and mineralogical characteristics of nickel-bearing minerals is a prerequisite to devising effective nickel beneficiation methods. Of particular importance are markers in the mineralogy of the flotation concentrate that inform beneficiation strategies to improve concentrate grades, increasing both the marketability and
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Accelerated Carbonation of High-Calcite Wollastonite Tailings Minerals (IF 2.5) Pub Date : 2024-04-18 Arnold Ismailov, Niina Merilaita, Erkki Levänen
Wollastonite (CaSiO3) is the most researched and well-defined mineral in the field of CO2 mineralization, but it is also a sought-after process mineral and thus, not easily justified for large scale ex situ carbon sequestration, which requires an energy-intensive step of comminution to increase reactivity. Wollastonite-rich mine tailings are a side stream with an already fine particle size resulting
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Hydrothermal Alteration Processes of Xincheng Gold Deposit Jiaodong Peninsula, China: Constraints from Composition of Hydrothermal Rutile Minerals (IF 2.5) Pub Date : 2024-04-18 Zhen-Jun Liu, Li-Qiang Yang, Dong Xie, Wei Yang, Da-Peng Li, Tao Feng, Jun Deng
Delineating the process of hydrothermal alteration is crucial for effectively enhancing exploration strategies and better understanding the gold mineralization process. Rutile, with its capacity to accommodate a wide range of trace elements including high-field-strength elements and base metals, serves as a reliable fluid tracer in ore systems. As one of the most significant gold ore concentrations
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Study on the Performance of Recycled Cement-Stabilized Macadam Mixture Improved Using Alkali-Activated Lithium Slag–Fly Ash Composite Minerals (IF 2.5) Pub Date : 2024-04-18 Weijun Yang, Zhenzhou Jin, Jianyu Yang, Jiangang He, Xuemei Huang, Xin Ye, Guangyao Li, Chao Wang
The huge demand for sand and gravel resources in road engineering construction leads to excessive consumption of resources and environmental damage. Recycling waste concrete and industrial solid waste as a road material is a promising alternative. In order to explore the application of these solid wastes in the road base, this paper studies the effect of adding lithium slag activated by an alkaline
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Effect of Pretreatment on a Copper Concentrate with High Arsenic Content Minerals (IF 2.5) Pub Date : 2024-04-18 Víctor Quezada, Geraldine Villagrán, Daniel Calisaya-Azpilcueta, Natalia Marín
Chilean mining faces challenges associated with the depletion of oxidized copper ore and the environmental complexity of treating concentrates with high arsenic content. Given this, hydrometallurgy emerges as an alternative for the treatment of these concentrates. This research analyzes the interaction of sulfuric acid (0, 70, 140, and 210 kg/t), sodium chloride (0, 25, 50, and 100 kg/t), curing time
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A Multi-Faceted Approach to Determining the Provenance of the Lacustrine Rift Basin in the Initial Rifting Stage: A Case Study of the Paleocene Qintong Sag, Subei Basin, East China Minerals (IF 2.5) Pub Date : 2024-04-18 Rui Jiang, Zhen Liu, Shiqiang Xia, Maolin Zhu, Jianxin Tang, Gongyi Wu, Wei Wu
Research on the provenance of sedimentary systems is key to better understanding the sedimentary framework and improving exploration-associated decision-making and deployment. With regard to the provenance of sedimentary systems, there is still poor understanding in the initial rifting stage due to imbalanced and insufficient exploration and a common lack of seismic data, which have seriously hindered
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Clarification of Mining Process Water Using Electrocoagulation Minerals (IF 2.5) Pub Date : 2024-04-17 Oscar Joaquín Solis-Marcial, Alfonso Talavera-López, José Pablo Ruelas-Leyva, José Alfredo Hernández-Maldonado, Alfonso Najera-Bastida, Roberto Zarate-Gutierrez, Benito Serrano Rosales
A lack of fresh water is one of the most significant problems currently affecting humanity. Water scarcity also affects industries, with the mining industry being one of the most affected. One possible solution to water scarcity is the recirculation of water. Water in mining is usually treated with physicochemical methods, but in metallurgical processes, reagents are added, accumulate until reaching
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A Genetic Mechanism for Chemical Compaction in Mudstones: Case Study from the Xihu Depression, East China Sea Shelf Basin Minerals (IF 2.5) Pub Date : 2024-04-17 Zilong Zhao, Jingzhou Zhao, Hong Zhao, Jun Wang, Chuang Er, Zhe Li, Shixiong Wang
Mudstone compaction is widely used in the estimation of subsidence caused by sediment load, basin modeling, and overpressure genesis. The boundary for the depth at which chemical compaction in mudstones begins in the Xihu Depression is across two wells; in Well A, the depth is 2200 m, while in Well D, it is 1750 m. The porosity shows a gradual decreasing trend, followed by a sharp decrease and then
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A Method for Stabilizing the Vibration Amplitude of a Flip-Flow Vibrating Screen Using Piecewise Linear Springs Minerals (IF 2.5) Pub Date : 2024-04-16 Dongdong Lin, Xinwen Wang, Ningning Xu, Weiran Zuo, Zhian Liang
The flip-flow vibrating screen (FFVS) is a novel multi-body screening equipment that utilizes vibrations to classify bulk materials in the field of screening machinery. The relative amplitude of FFVSs determines the tension and ejection intensity of elastic flip-flow screen panels, which is a critical operating parameter affecting the screening performance. However, FFVSs generally suffer from large
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Calibrating the Digital Twin of a Laboratory Ball Mill for Copper Ore Milling: Integrating Computer Vision and Discrete Element Method and Smoothed Particle Hydrodynamics (DEM-SPH) Simulations Minerals (IF 2.5) Pub Date : 2024-04-16 Błażej Doroszuk, Piotr Bortnowski, Maksymilian Ozdoba, Robert Król
This article presents a novel approach to calibrating the digital twin of a laboratory mill used for copper ore milling. By integrating computer vision techniques for real-time data extraction and employing DualSPHysics simulations for various milling scenarios, including balls only, balls with ore, and balls with slurry, we achieve a high degree of accuracy in matching the digital twin’s behavior
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Petrogenesis of the Newly Discovered Neoproterozoic Adakitic Rock in Bure Area, Western Ethiopia Shield: Implication for the Pan-African Tectonic Evolution Minerals (IF 2.5) Pub Date : 2024-04-16 Junsheng Jiang, Wenshuai Xiang, Peng Hu, Yulin Li, Fafu Wu, Guoping Zeng, Xinran Guo, Zicheng Zhang, Yang Bai
The Neoproterozoic Bure adakitic rock in the western Ethiopia shield is a newly discovered magmatic rock type. However, the physicochemical conditions during its formation, and its source characteristics are still not clear, restricting a full understanding of its petrogenesis and geodynamic evolution. In this study, in order to shed light on the physicochemical conditions during rock formation and
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Prospects for Geological Storage of CO2 in Carbonate Formations of the Adriatic Offshore Minerals (IF 2.5) Pub Date : 2024-04-16 Bruno Saftić, Nikolina Bralić, David Rukavina, Iva Kolenković Močilac, Marko Cvetković
Croatia has both significant CO2 emissions from the point sources and a history of oil and gas exploration, and this is why the CCS technology surfaced as a viable solution for curbing CO2 emissions on a national level. Since approximately half of emissions from the stationary industrial sources occur along the Adriatic coastline, the entire offshore area became an exploration target. Regional studies
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The First Data of Strontium Isotopic Composition of Osteological Material from Late Bronze to Early Iron Age Settlements in the Crimea Region Minerals (IF 2.5) Pub Date : 2024-04-16 Marianna A. Kulkova, Maya T. Kashuba, Yulia V. Kozhukhovskaya, Vitaliy A. Tikhomirov, Alexander M. Kulkov
Comparison of the 87Sr/86Sr signatures of archaeological osteological material with features of geological provinces can be applied to determine the places of birth and living of individuals. Such reconstructions were conducted for both humans and domestic animals at the Late Bronze–Early Iron Age sites of the Crimea. The Crimean Peninsula is an interesting testing polygon for such research because
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Electrical Structure between the Main and Eastern Deposits of the Bayan Obo Mine: Results from Time-Domain CSEM Methods Minerals (IF 2.5) Pub Date : 2024-04-16 Weiying Chen, Wanting Song, Pengfei Lv, Jinjing Shi, Yulian Zhu
Bayan Obo is a well-known polymetallic deposit containing significant quantities of rare earth elements, niobium, thorium, and iron. However, the epoch in which mineralization occurred and the mineralization process are still debated due to the complex nature of its mineralization and geological evolution. Inadequate geophysical exploration has further contributed to this lack of clarity surrounding
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Construction and Demolition Waste Ballast as a Pozzolanic Addition in Binary Cements: Characterization and Thermodynamic Stability Minerals (IF 2.5) Pub Date : 2024-04-15 Santiago Yagüe-García, Rosario García-Giménez
The use of raw materials from the recovery of construction waste is frequent. In this study, the waste is obtained from degraded railway ballast, made up of siliceous minerals. This material is added directly to the mixtures to replace part of the cement, forming a good quality cementitious product. The pozzolanic reaction is studied within the waste/lime system in a solid phase and water system for
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Stability of CO2 Fluid in Eclogitic Mantle Lithosphere: Thermodynamic Calculations Minerals (IF 2.5) Pub Date : 2024-04-15 Yulia G. Vinogradova, Anton Shatskiy
Findings of solid and liquefied CO2 in diamonds from kimberlites and placers have indicated its presence in the form of a fluid phase in the Earth’s mantle at depths of 150–250 km. However, this is inconsistent with the results of experiments and existing thermodynamic calculations. To clarify this, we carried out thermodynamic modeling of garnet–CO2 and bimineral eclogite–CO2 systems using the Perple_X
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Zonal Geochemistry and Elasticity Characteristics of Gallium- and Lithium-rich No. 6 Coalbed in the Haerwusu Mine, North China Minerals (IF 2.5) Pub Date : 2024-04-15 Jiannan Fu, Tongjun Chen, Fan Cui
This paper presents the zonal geochemistry and elasticity characteristics of gallium- and lithium-rich No. 6 coalbed in the Haerwusu mine and discusses interpretation methodologies of coal-hosted gallium and lithium resources using lab-measured samples and field-measured wireline logs. The results demonstrate that both coal-composition-based and elastic-parameter-based classifications yield similar
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Effect of Bulk Nanobubbles on the Flocculation and Filtration Characteristics of Kaolin Using Cationic Polyacrylamide Minerals (IF 2.5) Pub Date : 2024-04-15 Yihong Li, Guangxi Ma, Muhammad Bilal, Jie Sha, Xiangning Bu
This study investigated the influence of bulk nanobubbles (NBs) on the flocculation and filtration behavior of kaolin suspensions treated with cationic polyacrylamide (CPAM). Traditionally, flocculation relies on bridging mechanisms by polymers like CPAM. The present work examines the possibility of combining NBs with CPAM to achieve more efficient kaolin separation. The settling behavior of kaolin
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Formation of Calcium Ferrite Containing Aluminum (CFA) in Sintering of Iron Ore Fines Minerals (IF 2.5) Pub Date : 2024-04-14 Yu Du, Hui Guo, Xing-Min Guo
Calcium ferrite containing aluminum (CFA) is a precursor of the low-temperature bonding phase in the sintering process of iron ore fines for blast furnace ironmaking. Thus, improving the formation of CFA at lower temperature is very important for saving energy, improving efficiency and production. In this paper, the formation process of CFA was investigated at 1200 °C by reactions of alumina (Al2O3)
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Fingerprinting Ceramics from the Chalcolithic Santa Vitória Enclosure (SW Iberia) Minerals (IF 2.5) Pub Date : 2024-04-14 Rosa Marques, Ana Luisa Rodrigues, Dulce Russo, Katalin Gméling, António C. Valera, Maria I. Dias, Maria I. Prudêncio, Ana Catarina Basílio, Paula G. Fernandes, Francisco Ruiz
The Santa Vitória Chalcolithic site (southern Portugal) prompts several questions related to the provenance and production technology of artefacts. Archaeological ceramics from two sections of Ditch 1 of the Santa Vitória site were studied by neutron activation analysis and X-ray diffraction for the first time, with the main goal of contributing to the contextualization of the artefacts and better
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Investigation of Viscoelastic-Plastic Properties of Fresh Cemented Gangue Fly Ash Backfill Slurries Minerals (IF 2.5) Pub Date : 2024-04-14 Yuxin Hao, Xuepeng Song, Chengshuai Wang, Bowen Fan, Kai Yang
In underground filling mining, freshly prepared cemented gangue-fly ash backfill (CGFB) slurries are typically piped into the gobs. The rheological properties of backfill slurry during pipeline transportation have a direct impact on the transportation characteristics, which in turn affect pipeline blockage and wear. In this paper, the rheological behavior and viscoelastic-plastic properties of CGFB
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Rb–Sr Pyrite Dating and S–Pb Isotopes in the Fang’an Gold Deposit, Wuhe Area, Eastern Anhui Province Minerals (IF 2.5) Pub Date : 2024-04-13 Ying Wang, Ke Shi, Ze Zhong, Shenglian Ren, Juan Wang, Yan Zhang, Chuanzhong Song, Gang Zhang, Fangyu Ren
The Fang’an gold deposit in the Wuhe area, Anhui Province, is located in the area adjacent to the Bengbu Uplift and Wuhe Platform Depression in the southeastern part of North China. This study aimed to determine the deposit’s mineralization age and the source of its metallogenic materials and mineralization processes through investigations into its geological characteristics, Rb–Sr isotopes, and S–Pb
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Regional-Scale Paleoproterozoic Heating Event on Archean Acasta Gneisses in Slave Province, Canada: Insights from K–Ar and 40Ar/39Ar Chronology Minerals (IF 2.5) Pub Date : 2024-04-12 Megumi Sato, Hironobu Hyodo, Kei Sugiura, Tatsuki Tsujimori, Tetsumaru Itaya
Slave Province in Canada is an Archean granite–supracrustal terrane at the northwestern corner of the Canadian Shield. It is bordered by the Thelon–Taltson orogen (2.0 to 1.9 Ga) to the southeast and the Wopmay orogen (1.9 to 1.8 Ga) to the west. Acasta gneisses, exposed in the westernmost Slave Province, and the Wopmay rocks, located close to the gneisses, were systematically collected for K–Ar and
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Mineralogy and a New Fertility Index of Alunite in the Fanshan Lithocap, Luzong Basin, Anhui Province, China Minerals (IF 2.5) Pub Date : 2024-04-11 Xuanxuan Li, Qingling Xiao, Xin Lin, Shuangfei Li, Mingying Tang
Alunite is used as a representative mineral for indicating deposits in lithocaps, and lithocaps are generally related to the porphyry–(high-sulfidation) epithermal mineralization system. The study of alunite is of theoretical and exploration significance for prospecting potential underlying porphyry and epithermal deposits. Studies on alunite geochemistry have made breakthroughs, but there is little
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The Effect of Diagenetic Minerals on the Petrophysical Properties of Sandstone Reservoir: A Case Study of the Upper Shallow Marine Sandstones in the Central Bredasdorp Basin, Offshore South Africa Minerals (IF 2.5) Pub Date : 2024-04-11 Moses Magoba, Mimonitu Opuwari, Kuiwu Liu
The upper shallow marine sandstone reservoirs of the Barremian-to-Valanginian formation are the most porous and permeable sandstone reservoirs in the Bredasdorp Basin and an important target for oil and gas exploration. There is a paucity of information on the reservoir characterization and effect of diagenetic mineral studies focusing on the upper shallow marine sandstone reservoirs in the central
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Editorial for Special Issue “Design, Modeling, Optimization and Control of Flotation Process” Minerals (IF 2.5) Pub Date : 2024-04-10 Fardis Nakhaei, Ahmad Hassanzadeh, Luis A. Cisternas
Flotation is a significant and widely used processing technique, effectively separating valuable and gangue minerals [...]
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Using Euler Deconvolution as Part of a Mineral Exploration Project Minerals (IF 2.5) Pub Date : 2024-04-10 G. R. J. Cooper
Mineral exploration projects can make considerable use of a variety of geophysical techniques and datasets, including magnetic and gravity data. The interpretation of large quantities of data can be very time consuming, so semi-automatic interpretation techniques are often used to provide initial estimates of the parameters (primarily the location and depth) of the sources of anomalies. Euler deconvolution
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Evolution of Pore Spaces in Marine Organic-Rich Shale: Insights from Multi-Scale Analysis of a Permian–Pennsylvanian Sample Minerals (IF 2.5) Pub Date : 2024-04-10 Zilong Wang, Xiaoguang Yang, Shaobin Guo
The quantitative evolution pattern of pore space and genetic pore types along the maturation process in organic-rich shale reservoirs is unclear, which affects the assessment of shale storage capacity and petroleum production. A black shale outcrop sample from Kansas that is of Permian–Pennsylvanian age was collected and subjected to thermal simulation experiments at 10 different maturity stages to
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Changes of Temperature and Moisture Distribution over Time by Thermo-Hydro-Chemical (T-H-C)-Coupled Analysis in Buffer Material Focusing on Montmorillonite Content Minerals (IF 2.5) Pub Date : 2024-04-10 Kohei Ouchi, Haruo Sato
Bentonite is used as a buffer material in engineered barriers for the geological disposal of high-level radioactive waste. The buffer material will be made of bentonite, a natural clay, mixed with silica sand. The buffer material is affected by decay heat from high-level radioactive waste, infiltration of groundwater, and swelling of the buffer material. The analysis of these factors requires coupled
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Petrogenesis of the Early Cretaceous Tietonggou Diorite and Its Geological Implications Minerals (IF 2.5) Pub Date : 2024-04-09 Guo Ye, Guangzhou Mao, Qinglin Xu, Zhengjiang Ding, Yanchao Han, Huiji Zhao, Ying Shen
The Tietonggou pluton is mainly composed of gabbroic diorite and diorite. The petrology, zircon U-Pb age, and geochemistry of the Tietonggou diorite have been studied to determine its petrogenesis and metallogenic significance. The diorite samples have 56–58 wt% SiO2 and 11–14 wt% Al2O3 and are peraluminous and sodic (Na2O/K2O = 1.29–2.07). All the samples are enriched in light rare earth elements