Identifying mineralogical changes to scheelite and wolframite that may occur during ore processing and weathering of mine waste would be beneficial for understanding the leaching behavior of these minerals. Based on current knowledge, it is likely that tungsten is mobilized as both dissolved anions and adsorbed to colloidal particles.Web
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A multilayer water-rich aquifer is developed in the roof of the main coal seam in the deep-buried mining area of Inner Mongolia-Shaanxi, China. During the coal mining process, the water level of several aquifers in different mines has decreased significantly . Moreover, the chemical characteristics of inorganic water in adjacent aquifers are ...Web
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Environmental issues have become important, if not critical, factors in the success of proposed mining projects worldwide. In an ongoing and intense public debate about mining and its perceived environmental impacts, the mining industry points out that there are many examples of environmentally responsible mining currently being carried …Web
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We further process these traces by applying standard seismic-exploration processing routines to obtain zero-offset seismic sections along directions of interest. …Web
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Lunar helium-3 is considered one of the potential resources for utilization as a fuel source for future Earth-based nuclear fusion plants. With a potential start-up of a commercial fusion power plant by the year 2050, the author describes technology and commercial aspects for a lunar helium-3 mining operation that could fuel such a power …Web
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Environmental issues have become important, if not critical, factors in the success of proposed mining projects worldwide. In an ongoing and intense public debate about mining and its perceived environmental impacts, the mining industry points out that there are many examples of environmentally responsible mining currently being carried …Web
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There are some problems in the implementation process, such as limited by site conditions, large quantities, and high labor intensity [11–13]. A large number of practices show that backfilling mining can effectively control overburden deformation, reduce surface subsidence, and prevent rockburst disasters.Web
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Human activity is considered to be the major source of pollution and contamination by potentially toxic metals in soils. Among the various causes of this type of contamination we can mention mining and the processing of metals, which are linked to several environmental problems (e.g. acid mine drainage, impact on the landscape, and …Web
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Mining-related environmental signatures are defined here as the concentrations and chemical, mineralogical, or biological forms of these metals and chemicals prior to mitigation or remediation in mining and milling wastes, mine waters, mineral processing solutions and byproducts, and smelter emissions and byproducts.Web
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Metal and mineral deposits are, in fact, geochemical anomalies and, as such, applied geochemistry plays a critical role throughout the mineral resources value chain, from early stage exploration to mine closure. The fundamentals of element mobility (i.e. transport and fixation) in the near-surface environment are used by geochemists to detect ...Web
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Overview. The rare earth elements (REEs) are comprised of the lanthanide elements plus scandium and yttrium, which have similar physical properties and are often found in the same ores and deposits. Specifically, REEs include the light REEs (LREEs) such as lanthanum, cerium, praseodymium, neodymium, samarium, europium, and the heavy …Web
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Abstract. Mine planning is the process that determines the way in which an ore deposit will be mined over the life of a mining operation. It necessarily draws on everything that planning engineers believe will determine the ultimate success of the proposed mine and uses as its foundation all of the geology-related data on the deposit.Web
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This process continued until the end of mining. Relatively high tailgate convergence of 1700 mm, 2100 mm, and 2300 mm was measured at the face advance of 622 m, 664 m, and 900 m, respectively, while a smaller convergence of 300 mm, 400 mm, and 700 mm was measured at 350 m, 741 m, and 944 m (Figure 4 ).Web
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Explore select articles, abstracts, conference proceedings, published in the last 5 years, that are available on the GeoScienceWorld platform and demonstrate the …Web
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In China, about 70% of rockburst in coal mines occurs in gob-side entry [1–4].Case statistics of rockburst in gob-side entry is shown in Table 1 [5–8].Many scholars have carried out studies in the prevention theory and technology of rockburst in gob-side entry [9–14].For instance, taking the coal body in the high stress difference area as the …Web
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Enhanced understanding of mining and metallurgy by geologists plus appreciation of the metallurgical and mining uncertainties inherent in geologic data by …Web
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Test mining of Fe–Mn nodules and seafloor massive sulfides has already been undertaken. However, full-scale deep-ocean mining systems, including ship-to-ship ore transfer and equipment reliability in ~5,000 m water depths, still require field testing . Deposit-specific, integrated field tests and pilot mining projects are required to prove ...Web
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Modern large-scale gold mining by cyanide leaching of low-grade ore generates a large volume of process fluids. Reduction and disposal of these fluids presents unique challenges. Leaching solutions, tailings dewatering, and even postmining pit lakes must be managed both in the immediate short term and over decades or longer.Web
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The unstructured data do not have a predefined schema and usually require data processing to yield semantic information and relational data (Sint et al., 2009; Li et al., 2015), such as satellite imagery, geoscience literature, scanned geological map, and image. Semi-structured data is a special form of structured data that combines the content ...Web
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Several processes may be responsible for the origin of the PGE mineralization in layered intrusions. Naldrett (1989) suggested that PGEs precipitate from magma and accumulate on the top of a crystal pile. Vermaak and Hendriks (1976) and Boudreau (2019), in contradistinction, preferred an upward infiltration process whereby …Web
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Exploration and Mining Geology. Approved by publishing and review experts on SciSpace, this template is built as per for Exploration and Mining Geology formatting guidelines as mentioned in GeoScienceWorld author instructions. The current version was created on and has been used by 592 authors to write and format their manuscripts to …Web
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(C) Overview of the old tin mine at Kamativi. Walls are ca. 20 m in height. (D) Exposure in the mine walls, with white pegmatite (LP) below and darker, grayish raft of country rock (CR) above.Web
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In this paper, a new way of characterizing the mining-driven complex geological deformations is presented by utilizing a continuous real-time microseismic …Web
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These include the development of new concepts and techniques that will assist the discovery, mining, processing, remediation, and management of mineral resources. It is essential that researchers help to educate the …Web
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Environmental challenges associated with mineral extraction and processing include impacts to land, air, water, soil, flora, fauna, and socioeconomic fabric. Mines can generate large land disturbances and can also result in sterilization of land through deposition of barren, nonreactive rock piles (termed waste) during production and after ...Web
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The crack development process was observed by high-speed camera, and the strength, failure mode, and energy dissipation of composite rock mass under impact were analyzed. Meanwhile, a coupled SHPB simulation system was established to reproduce the energy evolution and failure modes of composite rock mass under …Web
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Abstract. High-quality kaolins are produced from two sites in the Capim River area in Pará State, northern Brazil. One mine is operated by Rio Capim Caulim (RCC) …Web
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Abstract. If we want to ensure a sustainable future for the human race, we must learn to prevent, minimize, reuse and recycle waste. Reuse of mine wastes allows their beneficial application, whereas recycling extracts resource ingredients or converts wastes into valuable products. Yet, today, many of the proposed reuse and recycling …Web
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Mine planning is the process that determines the way in which an ore deposit will be mined over the life of a mining operation. It necessarily draws on everything that …Web
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Abstract. The role of geology in advanced mining studies, such as feasibility studies, is commonly dwarfed by the technical inputs from mining, metallurgical, and social license issues. Understanding and planning for geologic risk in the feasibility process is often overlooked for the higher-profile aspects required to establish an ore reserve.Web
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Tungsten has wide applications across the mining, metalworking, petroleum, construction, jewellery and aerospace industries with few replacement opportunities. Scheelite and wolframite are the two main minerals for tungsten production, containing 0.08–1.5% tungsten trioxide (WO 3 ) ( Mulenshi et al. 2019 ).Web
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