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Zircon and the role of magmatic petrogenesis in the formation of felsic-hosted volcanogenic massive sulfide (VMS) deposits: a case study from the mid-Paleozoic Yukon-Tanana terrane, northern Canadian Cordillera Miner. Deposita (IF 4.8) Pub Date : 2023-09-28 Matthew J. Manor, Stephen J. Piercey, Corey J. Wall
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Post-Archean Nb-REE-U enrichment in the Superior craton recorded in metasomatised mantle rocks erupted in the 1.1 Ga Midcontinental Rift event Miner. Deposita (IF 4.8) Pub Date : 2023-09-30 Hélène Legros, Janina Czas, Yan Luo, Sarah Woodland, Chiranjeeb Sarkar, Steven B. Shirey, Dan Schulze, D. Graham Pearson
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Pressure leach of β-spodumene with carbonic acid: Weak acid process for extraction of lithium Miner. Eng. (IF 4.8) Pub Date : 2023-09-25 Mahmoud F. Alhadad, Hans C. Oskierski, Johannes Chischi, Gamini Senanayake, Bernhard Schulz, Alexandra A. Suvorova, Sarah E.M. Gain, Bogdan Z. Dlugogorski
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An investigation into the selective flotation of bastnaesite using the innovative collector HABTC: A comprehensive examination of the underlying mechanism Miner. Eng. (IF 4.8) Pub Date : 2023-09-25 Hongli Fan, Yuesheng Gao, Kun Dou, Wei Sun
To adequately utilize the critical rare earth resource by flotation, finding effective collectors has attracted increasing attention in the mining industry. A promising collector group is dithiocarbamate ester surfactant. In this study, S-[(2-hydroxyamino)-2-oxoethyl]-N, N-dibutyl-dithiocarbamate (HABTC), S-[(2-hydroxyamino)-2-oxoethyl]-N, N-dipropyl-dithiocarbamate (HAPTC), and S-[(2-hydroxyamino)-2-oxoethyl]-N
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Synergistic harmless treatment of phosphogypsum leachate wastewater with iron-rich electrolytic manganese residue and electric field Miner. Eng. (IF 4.8) Pub Date : 2023-09-23 Jiancheng Shu, Junjie Zhao, Xiaoqin Wei, Mengjun Chen, Bing Li, Yushi Gao, Yong Yang, Zongyu Deng
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Selection and thermal physical characteristics analysis of in-situ condition preserved coring lunar rock simulant in extreme environment Int. J. Min. Sci. Technol. (IF 11.8) Pub Date : 2023-09-23 Haichun Hao, Mingzhong Gao, Cunbao Li, Xuan Wang, Yan Wu, Zheng Gao, Wen Yu, Xuemin Zhou
With the increasing scarcity of Earth’s resources and the development of space science and technology, the exploration, development, and utilization of deep space-specific material resources (minerals, water ice, volatile compounds, etc.) are not only important to supplement the resources and reserves on Earth but also provide a material foundation for establishing extraterrestrial research bases.
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A novel approach to accelerate carbon dioxide sequestration of ladle furnace slag using sodium bicarbonate solution Miner. Eng. (IF 4.8) Pub Date : 2023-09-22 Liushun Wu, Hui Li, Haiqing Mei, Lei Rao, Yunjin Xia, Yuanchi Dong
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Measurement of bubble size and froth velocity using convolutional neural networks Miner. Eng. (IF 4.8) Pub Date : 2023-09-21 A. Jahedsaravani, M. Massinaei, M. Zarie
Bubble size and froth velocity are the most important froth characteristics used for evaluating and controlling flotation systems. Bubble size is often measured using watershed and edge detection algorithms. These algorithms typically result in the over-segmentation of big bubbles or the under-segmentation of small ones. Froth velocity is usually determined by processing successive images using various
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Conductive biomass carbon aerogel with high adsorption performance for gallium in alkaline solution Miner. Eng. (IF 4.8) Pub Date : 2023-09-22 Shulei Li, Jundi Fan, Lihui Gao
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DEM analysis of wear evolution and its effect on the operation of a lab-scale HPGR mill Miner. Eng. (IF 4.8) Pub Date : 2023-09-22 Yudong Zou, Chengwei Zhang, Dazhao Gou, Guojian Cheng, Runyu Yang
Wear due to compression and abrasion from particles is a critical issue for high pressure grinding rolls (HPGR) mills. Understanding the evolution of wear provides useful insight on its mechanisms and helps to mitigate the issue so mills are operated at their optimal states. This work presented numerical simulations based on the discrete element method (DEM) to analyse the formation and evolution of
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Evaluation of adsorption differences of DL-cysteine on sphalerite surfaces with different degrees of iron substitution: Experimental and DFT studies Miner. Eng. (IF 4.8) Pub Date : 2023-09-22 Hongxin Qiu, Bozeng Wu, Jianhua Chen, Jiushuai Deng, Xiaohao Sun, Mingzhen Hu, Jiaozhong Cai, Zherui Chen, Cheng Zheng, Yijiang Li
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Distributed strain monitoring of overburden delamination propagation at a deep longwall mine Int. J. Rock Mech. Min. Sci. (IF 7.2) Pub Date : 2023-09-22 Jianlin Xie, Qingdong Qu, Weibing Zhu, Xiaozhen Wang, Jialin Xu, Shan Ning, Tao Hou, Xun Luo
Clear understanding of overburden failure propagation during underground mining is critical in managing safety and environmental issues such as rock burst hazards, groundwater inrush and longwall convergency. This paper presents an in-situ monitoring study of overburden strain dynamics at a kilometre-deep longwall mine using distributed fibre optic sensing technology (DFOS). A deep borehole was drilled
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Exploring the effects of different process water sources on xanthate adsorption and flotation performance Miner. Eng. (IF 4.8) Pub Date : 2023-09-19 Rešoketšwe M. Manenzhe, Malibongwe S. Manono, Jennifer G. Wiese, Benjamin Musuku, Kirsten C. Corin
Driven by environmental concerns and restrictions arising from them, the mining industry has instituted an initiative to recycle process waters within plant operations. This has the two-fold advantage of using minimal freshwater for mining, thus freeing the water for other applications, and limiting the release of potentially toxic discharge to the environment. However, in recycling their process water
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Application of hydroxyethylidene diphosphonic acid as a depressant for efficient pyrite separation from serpentine: a performance and mechanistic study Miner. Eng. (IF 4.8) Pub Date : 2023-09-18 Binbin Li, Dezhi Liu, Qing Shi, Guofan Zhang, Hong Zheng
Hydroxyethylidene diphosphonic acid (HEDP) is an industrial environmental reagent, often used as a chemical raw material in industrial water treatment, household cleaning products and personal care products. In this work, the effort to use HEDP to the flotation of pyrite containing fine-grained serpentine was conducted, and the selective separation of serpentine and pyrite was accomplished. During
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Auxiliary depression of copper ion - strengthening the depression of sodium trithiocarbonate on chalcopyrite Miner. Eng. (IF 4.8) Pub Date : 2023-09-19 Jiamei Hao, Jian Liu, Hulin Gao, Yunlong Yu, Xu Bai
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A DFT study on flotation behavior of sphalerite with indium and iron impurities Miner. Eng. (IF 4.8) Pub Date : 2023-09-19 Xi Yang, Yuqiong Li, Huimin Chen, Jianhua Chen, Cuihua Zhao
Indium (In) is a rare precious metal with extremely low abundance in the Earth's crust, mostly occurring as impurities in sphalerite, and it is closely related to the high iron content in sphalerite. Flotation is generally used to recover such minerals. However, there are few for the flotation mechanism of sphalerite containing indium and iron impurities. In this paper, the adsorption of xanthate (C4H9OCSS−)
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Model tests on dynamic responses of surrounding rock and support structure on underground tunnel under combined dynamic and static loading Int. J. Rock Mech. Min. Sci. (IF 7.2) Pub Date : 2023-09-21 Q.R. Wang, L.X. Xie, E.X. Song, F.L. Kong, J.Q. Fan, L.Y. Yu, J.M. Xu, X.Y. Shi
The effect of blasting vibration on the macroscopic failure characteristics of underground tunnels has been investigated, but little attention has been paid to the stress and deformation characteristics of underground tunnels under the combined action of explosion waves and in-situ stresses. Consequently, enhancing the bearing capacity of surrounding rock masses by adopting effective reinforcement
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3D spatial fracture behavior of sandstone containing a surface flaw under uniaxial compression Int. J. Rock Mech. Min. Sci. (IF 7.2) Pub Date : 2023-09-21 Zhenyu Han, Jianchun Li, Diyuan Li, Jian Zhao
Surface defects are prevalent in natural rock masses, and the newborn cracks that initiate from these defects and significantly affect structural stability usually extend in a three-dimensional (3D) manner. Hence, in this research, a series of uniaxial compression tests were conducted on sandstone specimens containing a surface flaw to examine the effect of nondimensional flaw depth (0, 0.3, 0.5 and
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Modelling the loosening of rock in the experimental rock mining method Int. J. Rock Mech. Min. Sci. (IF 7.2) Pub Date : 2023-09-21 Zbigniew Szkudlarek, Stanisław Szweda
Analytical description of the process of rock discontinuity caused by the operation of an experimental cutting head, in which a combination of cutting and loosening methods was used, is presented. Loosening of the rock fragment takes place after reaching the tensile or shear strength of the rock, what is more favourable compared to the classical mining methods. An analytical model of the stress in
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Genesis of copper mineralization in the polymetallic tin deposits from the Herberton Mineral Field, Queensland, Australia Miner. Deposita (IF 4.8) Pub Date : 2023-09-20 Avish Kumar, Ioan Sanislav, Laure Martin, Matvei Aleshin, Paul Dirks
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Lithium and oxygen isotopic constraints on the source and evolution of ore-forming fluids: a case study from the Shuiyindong Carlin-type gold deposit, SW China Miner. Deposita (IF 4.8) Pub Date : 2023-09-21 Ningning Hu, Ruizhong Hu, Heng Chen, Shanling Fu, Jiehua Yang, Lin Xu, Chongguang Luo
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Lithium-rich claystone in Pingguo area, Guangxi, southwest China: precursor kaolinite controls lithium enrichment Miner. Deposita (IF 4.8) Pub Date : 2023-09-21 Kunyue Ling, Hanjie Wen, Tao Han, Zhitong Lu, Yi Cui, Chongguang Luo, Wenbin Yu
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Strain rockburst failure characteristics and mechanism of high stress circular hard rock tunnel triggered by dynamic impact load Int. J. Rock Mech. Min. Sci. (IF 7.2) Pub Date : 2023-09-20 Wuxing Wu, Fengqiang Gong, Li Ren, Lei He
Strain rockburst poses a great threat to the construction safety of deep engineering, especially induced by dynamic impact loads such as blasting from the adjacent tunnel excavation. Aiming to clarify the failure characteristics and mechanism of strain rockburst induced by the dynamic impact load, a series of dynamic impact tests under different biaxial prestress conditions were conducted on the sandstone
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Experimental study on instability mechanism and critical intensity of rainfall of high-steep rock slopes under unsaturated conditions Int. J. Min. Sci. Technol. (IF 11.8) Pub Date : 2023-09-19 Xiaoshuang Li, Qihang Li, Yunmin Wang, Wei Liu, Di Hou, Wenbo Zheng, Xiong Zhang
Two critical factors, namely intense precipitation and intricate excavation, can trigger rock mass disasters in mining operations. In this study, an indoor rainfall system was developed to precisely regulate the flow and intensity of precipitation. A large-scale model experiment was conducted on a self-designed physical simulation experiment platform to investigate the failure and instability of high-steep
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A review paper on the extraction of potassium from non-soluble resources with the use of acid and alkaline solution and molten salts Miner. Eng. (IF 4.8) Pub Date : 2023-09-18 Pegah Haseli, Peter Majewski, Farid Christo, Patrick Keane, Mehdi Jafarian, Frank Bruno
Fertilizers have been given significant attention due to their critical need for agriculture yield to meet the demand for food growth arising from population growth. The demand for potassium fertilizer (metric tons of K2O) has increased by 12% between 2015 and 2020. Therefore, the concern about the limited availability of soluble potassium resources in the southern hemisphere has become a key research
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Passive treatment residues of mine drainage: Mineralogical and environmental assessment, and management avenues Miner. Eng. (IF 4.8) Pub Date : 2023-09-16 Hsan Youssef Mehdaoui, Youssef Guesmi, Marouen Jouini, Carmen Mihaela Neculita, Thomas Pabst, Mostafa Benzaazoua
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Quantifying bubble-scheelite interaction under the effect of sodium oleate Miner. Eng. (IF 4.8) Pub Date : 2023-09-17 Wei Guo, Jingqiao Li, Rogerio Manica, Tianzi Bai, Mingda Li, Yi Lu, Haijun Zhang, Qingxia Liu
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Decoupling the pulp and froth effect of ultrafine particles on Itabirite iron ore flotation Miner. Eng. (IF 4.8) Pub Date : 2023-09-16 B. McFadzean, N.P. Lima, D.A. Deglon
The reverse flotation of Itabirite iron ore is typically performed after a desliming step in which most of the sub-10 µm particles are removed. This is done to limit processing problems such as poor flotation recovery of SiO2 due to slime coatings, increased slurry viscosities, unmanageable froths and increased losses of hematite particles due to entrainment. However, the rejection of ultrafine particles
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Synthesis, characterization and uptake studies of diglycolamic acid and diglycolamide analogs adsorbents for extraction of rare earth elements Miner. Eng. (IF 4.8) Pub Date : 2023-09-18 Rostyslav Bardovskyi, Cyril Ronco, Rachid Benhida
Tetraalkyldiglycolamides are known for their high extracting efficiency of rare earth elements (REEs) from nitric acid solutions (1–6 mol/L). Nevertheless, solid-phase extractants based on diglycolamides (DGA) are poorly studied for REEs extraction. This paper explores the design and synthesis of novel REEs adsorbents by grafting silica with diglycolic acid-based ligands. The newly developed solid-phase
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Evaluation of the effects of L-cysteine addition on the bioleaching of zinc and cadmium from sphalerite flotation concentrate Miner. Eng. (IF 4.8) Pub Date : 2023-09-16 Mehrdad Kordloo, Hadi Abdollahi, Mahdi Gharabaghi, Ali Yadollahi, Ali Rezaei
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Constitutive modeling of clay shales in undrained conditions and its experimental verification for Opalinus Clay Int. J. Rock Mech. Min. Sci. (IF 7.2) Pub Date : 2023-09-18 Kavan Khaledi, Lisa Winhausen, Mohammadreza Jalali, Florian Amann
Clay shales are low-permeable sedimentary rocks that exhibit inherent cross-anisotropic stiffness, strength, and permeability. Accurate design of tunnels excavated in clay shales requires appropriate constitutive models that account for the anisotropic properties of the host rock, especially under undrained conditions. This paper presents a transversely isotropic elastoplastic-damage model for fully-saturated
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Heterogeneity indexes of unconventional reservoir shales: Quantitatively characterizing mechanical properties and failure behaviors Int. J. Rock Mech. Min. Sci. (IF 7.2) Pub Date : 2023-09-12 Dingdian Yan, Luanxiao Zhao, Yang Wang, Yonghao Zhang, Zhenjia Cai, Xuehang Song, Fengshou Zhang, Jianhua Geng
Heterogeneity is an inherent feature of subsurface rocks. Unconventional reservoir shales, a group of typically fined-grained sedimentary rocks, usually exhibit strong heterogeneities due to the diversity of their constituents, including stiff silicate and carbonate minerals, ductile clay minerals, and organic matter. Understanding the influence of heterogeneities on the mechanical response as well
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Laboratory investigation of scale effects in bursting failure of quasi-brittle materials Int. J. Rock Mech. Min. Sci. (IF 7.2) Pub Date : 2023-09-16 Fuqiang Gao, Xiangyuan Peng, Guiyang Yuan, Wenju Liu
Understanding the scale effect in the behavior of solid materials is important when small-scale models are used to predict the behavior of real structures. Tremendous efforts have been devoted to investigating the scale effect in the strength of quasi-brittle materials. However, limited studies have focused on the whether there is a scale effect in bursting failure, which is a typical failure pattern
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Attenuation characteristics of shock waves in drilling and blasting based on viscoelastic wave theory Int. J. Rock Mech. Min. Sci. (IF 7.2) Pub Date : 2023-09-15 Zhiwei Ye, Jianhua Yang, Chi Yao, Xiaobo Zhang, Shuihua Jiang, Chuangbing Zhou
This study investigates the propagation and attenuation characteristics of shock waves produced by drilling and blasting. The focus is on a novel method for calculating the attenuation of the shock wave pressure. Based on the propagation of shock waves in a rod with a variable section and a Maxwell model for rock, theoretical solutions for the attenuation of the blast-induced shock wave pressure were
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Optimisation of ultrasound-assisted alkali-acid leaching of rare earth elements from run-of-mine and discard coal using the response surface methodology Miner. Eng. (IF 4.8) Pub Date : 2023-09-14 Agnes Modiga, Jibril Abdulsalam, Orevaoghene Eterigho-Ikelegbe, Samson Bada, Xolisa Goso
This paper presents the results of an ultrasonic-assisted alkali-acid leaching process for concurrently recovering rare earth elements (REEs) and coal from South African run-of-mine (RMC) and discard (DC) coal. The response surface methodology (RSM) was used during the alkali leaching of DC to evaluate and optimise the process parameters. REE recovery increased while ash content decreased with increasing
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Effect of sulfidization on the surface property and flotation behavior of heterogenite Miner. Eng. (IF 4.8) Pub Date : 2023-09-16 Guofan Zhang, Yongqiang Gao, Mengtao Wang
Heterogenite is an important cobalt oxide mineral, however, few investigations on the surface properties and flotation recovery of heterogenite were conducted. In this study, the effect of sulfidization on the surface property and flotation behavior of heterogenite was studied for the first time, using X-ray photoelectron spectroscopy (XPS), Scanning electron microscopy and energy dispersive X-ray
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Permeability evolution and production characteristics of inclined coalbed methane reservoirs on the southern margin of the Junggar Basin, Xinjiang, China Int. J. Rock Mech. Min. Sci. (IF 7.2) Pub Date : 2023-09-14 Shun Liang, Yaowu Liang, Derek Elsworth, Qiangling Yao, Xuehai Fu, Junqiang Kang, Yisong Hao, Meng Wang
The thick and steeply inclined coal seams of the Junggar Basin of Xinjiang, China, are unique with dip angles generally >50° but over the range 0°–85°. Initial and evolving permeability and pressures change drastically around wells down-dip within the steeply inclined reservoir as a result of the depth differential. Hence, the evolution of permeability and fluid pressures during drainage exhibits significant
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Recognition of shear and tension signals based on acoustic emission parameters and waveform using machine learning methods Int. J. Rock Mech. Min. Sci. (IF 7.2) Pub Date : 2023-09-11 Fuqiang Ren, Chun Zhu, Zhaohu Yuan, Murat Karakus, Shibin Tang, Manchao He
Acoustic emission (AE) technology is widely used to monitor the damage evolution of rock. Identifying AE signals is crucial to reveal the rock cracking mechanism. The current tension and shear signal discrimination methods primarily rely on AE parameters. However, the differences between AE parameters and waveform images used as inputs require further exploration. Acoustic emission data from Brazilian
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Bi-modular properties of sandstone inferred from seismic moment tensors of acoustic emissions Int. J. Rock Mech. Min. Sci. (IF 7.2) Pub Date : 2023-09-14 Václav Vavryčuk, Matěj Petružálek, Tomáš Lokajíček, Ali Aminzadeh
We propose a novel method for studying the λ/μ ratio, the vP/vS ratio and Poisson's ratio of rocks based on the determination of highly accurate moment tensors of acoustic emissions (AEs). The validity of the method is verified on observations of 539 AEs recorded in a sandstone sample during a semi-circular bend test. We show that the sandstone exhibits the so-called bi-modular behaviour indicating
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Size effect and lateral pressure effect on the mechanical resistance of columnar jointed basalt Int. J. Rock Mech. Min. Sci. (IF 7.2) Pub Date : 2023-09-15 Yong-yi Wang, Bin Gong, Chun-an Tang, Xiao-yu Yang
To reveal the size effect and lateral pressure effect of columnar jointed basalts (CJBs), the meso-damage mechanics, statistical strength theory, continuum mechanics and digital image correlation are combined, and a series of heterogeneous numerical models of CJBs orthogonal and parallel to column axis are established. The elastic modulus, Poisson's ratio, uniaxial compressive strength, friction angle
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Numerical investigation of borehole breakout and rock spalling based on strain energy criteria Int. J. Rock Mech. Min. Sci. (IF 7.2) Pub Date : 2023-09-15 Zizhuo Xiang, Taehyun Moon, Joung Oh, Xu Li, Guangyao Si, Ismet Canbulat
Borehole breakout is a natural phenomenon resulting from in-situ stress redistribution around a borehole, and its orientation and geometries are critical indicators for in-situ stress direction and magnitudes. The aim of the study is to better understand the borehole breakout formation mechanism and reproduce breakout geometries using numerical simulations. A 2D bonded-particle model (BPM) is developed
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The formation of vein-type barite (± base metal, gold) deposits in northern Madagascar and its link with Mesozoic Pangean rifting Miner. Deposita (IF 4.8) Pub Date : 2023-09-14 Wouter Heijlen, Koen Vos, Nikolaos Kartalis, Adrian J. Boyce, Philippe Muchez
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Using ML8 to achieve the lime-free separation of sphalerite-pyrrhotite under the copper activation system Miner. Eng. (IF 4.8) Pub Date : 2023-09-14 Zhenhui Xie, Runqing Liu, Changtao Wang, Yacong Wu, Wei Sun
Sphalerite flotation is conducted under Cu2+ activation system, whereas the selective separation of pyrrhotite is difficult due to the inevitable activation effect of Cu2+, which requires a large amount of lime to depress pyrrhotite flotation. In this study, the conventional collector butyl xanthate and a novel collector ML8 were compared to the selectivity of the flotation separation of sphalerite
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Toxic heavy metal ions removal from wastewater by ion flotation using a nano collector Miner. Eng. (IF 4.8) Pub Date : 2023-09-14 Fatemeh Sadat Hoseinian, Shahab Ramshini, Bahram Rezai, Elaheh Kowsari, Mehdi Safari
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A comparison study on the predictive ability of numerical methods for fracturing of rock with different pre-existing flaws Int. J. Rock Mech. Min. Sci. (IF 7.2) Pub Date : 2023-09-12 Yimin Hao, Xindong Wei, Gao-Feng Zhao
Various numerical methods have been developed for modelling rock fracturing problems. Most of the available studies could reproduce reasonable results for given experimental data, but the ability and accuracy of these methods to predict rock fracturing are still controversial, and a systematic comparison is lacking. In this study, a set of rock mechanics experiments were designed for a numerical modelling
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Early zircon saturation in adakitic magmatic differentiation series and low Zr content of porphyry copper magmas Miner. Deposita (IF 4.8) Pub Date : 2023-09-11 Robert R. Loucks, Marco L. Fiorentini
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Neodymium isotope variations in the Flatreef on Macalacaskop, northern limb, Bushveld Complex Miner. Deposita (IF 4.8) Pub Date : 2023-09-14 J. J. Keet, F. Roelofse, C. D. K. Gauert, L. M. Iaccheri, D. F. Grobler, H. Ueckermann
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A deformation measurement method based on surface texture information of rocks and its application Int. J. Min. Sci. Technol. (IF 11.8) Pub Date : 2023-09-10 Yanbo Zhang, Xin Han, Peng Liang, Xulong Yao, Qun Li, Guangyuan Yu, Qi Wang
Users of the digital image correlation method are faced with the problem of poor operability, low repeatability, and lack of standardized specifications for spraying speckles. To solve the problem, the research proposed a rock deformation measurement method that obviates the need to spray speckles. A local binary model was established by using the local binary pattern (LBP) operator based on deep texture
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An image segmentation method of pulverized coal for particle size analysis Int. J. Min. Sci. Technol. (IF 11.8) Pub Date : 2023-09-09 Xin Li, Shiyin Li, Liang Dong, Shuxian Su, Xiaojuan Hu, Zhaolin Lu
An important index to evaluate the process efficiency of coal preparation is the mineral liberation degree of pulverized coal, which is greatly influenced by the particle size and shape distribution acquired by image segmentation. However, the agglomeration effect of fine powders and the edge effect of granular images caused by scanning electron microscopy greatly affect the precision of particle image
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Deep-sea rock mechanics and mining technology: State of the art and perspectives Int. J. Min. Sci. Technol. (IF 11.8) Pub Date : 2023-09-09 Zenghui Liu, Kai Liu, Xuguang Chen, Zhengkuo Ma, Houquan Zhang, Rui Lv, Changyun Wei, Ke Ma
The review covers the development and the state of the art in deep-sea mining rock mechanics, equipment and challenges. It begins by introducing the significance of deep-sea mining, the types and geographical distribution of deep-sea resources. Section 2 reviews the mechanical properties and fracture mechanism of seabed and related continental rocks, which contributes to the advancement of relevant
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Functionality of hydrophobic groups of surfactants in the flotation of anode active materials Miner. Eng. (IF 4.8) Pub Date : 2023-09-08 Sabereh Nazari, Mansoureh Behzadi, Hamid Khoshdast, Yaqun He, Ahmad Hassanzadeh
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Structural evolution of bed drainage channels under the shear effect of the whole process of tailings thickening Miner. Eng. (IF 4.8) Pub Date : 2023-09-08 Gezhong Chen, Cuiping Li, Zhuen Ruan, Raimund Bürger, Yuan Gao, Hezi Hou
Cemented paste backfill (CPB) technology has the advantages of safety, environmental friendliness, economics, and efficiency. This method offers assurances for practical underground mining and tailings pond management. The bed drainage channel structure and coarse particles with diameters above 45 μm were reconstructed and quantitatively characterized in 3D by computed tomography (CT) for the whole
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Characteristics and mechanism of rockburst at five deep gold mines in Jiaodong Peninsula of China Int. J. Rock Mech. Min. Sci. (IF 7.2) Pub Date : 2023-09-09 Peng Xiao, Diyuan Li, Guoyan Zhao, Quanqi Zhu
Rockburst in deep rock engineering poses serious threat to personnel safety and engineering. In order to reveal the rockburst characteristics in deep engineering, the rockburst investigations and rockburst mechanisms based on in-situ stress were carried out at five deep gold mines in Jiaodong Peninsula, China. At the cover depth between 400 m and 600 m, the ground pressure hazards are mainly local
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Upscaling the creep behavior of clay-rich and quartz-rich shales from nanoindentation measurements: Application to the Wufeng-Longmaxi shale, China Int. J. Rock Mech. Min. Sci. (IF 7.2) Pub Date : 2023-09-09 Jianfeng Wang, Yuke Liu, Chao Yang, Yangcheng Zheng, Wenmin Jiang, Luca Menegon, François Renard, Ping'an Peng, Yongqiang Xiong
Creep of shale controls the stability of fault gouge in sedimentary rocks, aseismic deformation in the upper crust, and several engineering operations, such as proppant embedment, reservoir subsidence, and wellbore stability during unconventional shale gas exploitation. However, measuring the creep properties of shale is challenging due to the multi-scale structure of this rock. Here, our goal is to
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Development of gravity flow draw theory and determination of its parameters Int. J. Rock Mech. Min. Sci. (IF 7.2) Pub Date : 2023-09-09 Huan Liu, Rongxing He, Guanghui Li, Dongdong Sun, Peng Li
The caving mining method relies on gravity to transport large amounts of caved ore and rock, therefore, the gravity flow rules are the foundation for determining or optimizing the stope parameters. The stochastic medium draw theory of gravity flow is relatively fast and easy to implement, and it can describe different shapes of the drawbody. However, the theory usually regards the drawpoint as a point
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Analysis of thermo-mechanical damage around tunnel and deposition boreholes of an underground nuclear waste disposal facility at the Forsmark site (Sweden) by 3D coupled FDEM simulations Int. J. Rock Mech. Min. Sci. (IF 7.2) Pub Date : 2023-09-09 Andrea Lisjak, Omid Mahabadi, Johnson Ha, Diego Mas Ivars
This study focuses on rock damage potentially developing in the near-field of a planned underground nuclear waste repository at the Forsmark site (Sweden). In hard, crystalline rocks, mechanical damage in the form of spalling may be induced during construction by overstressing of the excavation periphery. During operation, thermal damage may develop due to additional thermo-elastic stresses forming
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Development of a simplified test for the determination of the Bond Ball Mill Work Index using a modified Hardgrove test Miner. Eng. (IF 4.8) Pub Date : 2023-09-08 Maurício Guimarães Bergerman, Giovanni Pamparana, Homero Delboni, Bern Klein
Grinding ores in conventional ball mills demands high energy consumption, resulting in relatively high operating costs in a typical mineral processing industrial plant. Whether in the initial stages of a mining project or during its operation, conducting tests to determine the processing circuit’s energy consumption throughout the life of mine is necessary in order to reduce such high operating costs
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The importance of reaction mechanisms and coupled dissolution with reprecipitation (CDR) reactions when modelling copper leaching in heap systems Miner. Eng. (IF 4.8) Pub Date : 2023-09-06 Eric O. Ansah, Apoorv Jyoti, Jay R. Black, Ralf R. Haese
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Enhancement of magnetization roasting of hematite ore by high voltage pulse discharge Miner. Eng. (IF 4.8) Pub Date : 2023-09-06 Honghao Zhang, Peng Gao, Shuai Yuan, Yonghong Qin
High voltage pulse discharge (HVPD) is a new type of crushing technology with good application. Existing studies have focused on the crushing characteristics, with less reports on follow-up work. This study magnetization roasts hematite ore after mechanical crushing and HVPD, analyzing the difference in the roasting effect between the two crushing methods by establishing a new system of HVPD-magnetization
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Tungsten minerals flotation with 4-alkoxy benzohydroxamic acid: The structure-performance relationship of its C3 derivatives Miner. Eng. (IF 4.8) Pub Date : 2023-09-06 Gang Zhao, Sheng Liu, Jing Qi, Liu Yang, Guangyi Liu
To improve the flotation recovery of tungsten minerals, 4-alkoxy benzohydroxamic acids containing C3 alkyl (C3OBs), namely 4-propoxy benzohydroxamic acid (POB), 4-iso-propoxy benzohydroxamic acid (IPOB) and 4-allyloxy hydroxamic acid (AOB), were designed as scheelite and wolframite collectors. The micro-flotation results uncovered that C3OBs exhibited stronger collecting ability towards Pb(Ⅱ)-activated