Bibliografias temáticas / Aluminum mines and mining

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Literatura científica selecionada sobre o tema "Aluminum mines and mining"

Autor: Grafiati
Publicado: 4 de junho de 2021
Última modificação: 31 de julho de 2024

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Artigos de revistas sobre o assunto "Aluminum mines and mining"

1

Jorgenson, Mica, e John Sandlos. "Dust versus Dust: Aluminum Therapy and Silicosis in the Canadian and Global Mining Industries". Canadian Historical Review 102, n.º 1 (março de 2021): 1–26. http://dx.doi.org/10.3138/chr-2019-0049.

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By the 1930s, silicosis – a debilitating lung disease caused by the inhalation of silica dust – had reached epidemic proportions among miners in the gold-producing Porcupine region of northern Ontario. In response, industrial doctors at the McIntyre Mine began to test aluminum powder as a possible prophylactic against the effects of silica dust. In 1944, the newly created McIntyre Research Foundation began distributing aluminum powder throughout Canada and exported this new therapy to mines across the globe. The practice continued until the 1980s despite a failure to replicate preventative effects of silicosis and emerging evidence of adverse neurological impacts among long-time recipients of aluminum therapy. Situated at the intersection of labour, health, science, and environmental histories, this article argues that aluminum therapy represents an extreme and important example where industry and health researchers collaborated on quick-fix “miracle cures” rather than the systemic (and more expensive) changes to the underground environment necessary to reduce the risk of silicosis.
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Vereh-Belousova, Ekaterina, e Alina Harlamova. "Environmentally Safe Trends of Coal Mining Waste Usage as Aluminum Technogenic Raw Material". Proceedings of Petersburg Transport University 20, n.º 1 (20 de março de 2023): 142–50. http://dx.doi.org/10.20295/1815-588x-2023-1-142-150.

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Purpose: Substantiation and development of new environmentally safe trends for utilization of dump rock of Donbass coal mines as technogenic aluminum deposits. To investigate mineralogical and chemical composition of dump rock samples of metamorphism varying degrees in order to substantiate the possibility of their processing as technogenic poor aluminum raw material. To conduct the experiments on chemical and biochemical (bacterial) leaching of fluid (soluble) aluminum compounds from dump rock samples. Methods: Analysis of chemical transformations and technogenic mineralogy in stored dump rock. Chemical and biochemical acid leaching of aluminum sulfate salts from dump rock of metamorphism varying degrees was carried out. Results: It has been established that according to the content of bauxites, the dump rock of Donbass coal mines can be attributed to poor aluminum raw material. Method of acid chemical leaching of soluble aluminum compounds with sulfuric acid solutions of various concentrations is proposed and effective leaching with weak acid solutions is proved. Method of biochemical (bacterial) leaching of aluminum salts is substantiated and vindicated. Practical significance: It is testified that environmental friendliness and cost–effectiveness of the process of closely-grouped biochemical leaching is ensured by the fact that the main reagent — sulfuric acid - is formed naturally as a result of bacteria vital functions and the process does not need additional technological units for acid production.
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Dehnert, Jörg, Jens Stopp, Peter Windisch e Bernd Schönherrt. "Quick-Erect Stopping System for Radiation Protection and Mine Rescue in Small-scale Mining". Mining, Metallurgy & Exploration 37, n.º 6 (23 de julho de 2020): 1807–17. http://dx.doi.org/10.1007/s42461-020-00261-2.

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AbstractThe Quick-Erect Stopping System (QESS) offers a new way of reducing the radon exposures of miners in Germany, especially during remediation work in old mines. The QESS is a light-weight, modular, and reusable construction kit of interlocking telescopic aluminum tubes, radon-proof foil, and expanding foam. It is designed to seal off radon-rich parts of galleries within only a few minutes. Originally, the QESS was developed to protect miners against radon exposures. Then, the QESS found the attention of several mine rescue teams at a German mining conference. The Student Mine Rescue of the Technical University Bergakademie Freiberg and the Wismut Mine Rescue carried out first mine rescue drills in Freiberg and Schlema. Additionally, a mine rescue drill was carried out by the Front Range Mine Rescue in the Edgar Experimental Mine of the Colorado School of Mines. These drills helped to improve the system and highlighted its potential for mine rescue operations. Now, the QESS is well-suited for small-scale mining. The QESS can be used to seal off galleries in only a few minutes to both protect miners from radon exposures and to support mine rescue operations. Moreover, the QESS was also successfully used in ventilation experiments.
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Evans, Michael J., Kathryn Kay, Chelsea Proctor, Christian J. Thomas e Jacob W. Malcom. "Linking mountaintop removal mining to water quality for imperiled species using satellite data". PLOS ONE 16, n.º 11 (4 de novembro de 2021): e0239691. http://dx.doi.org/10.1371/journal.pone.0239691.

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Environmental laws need sound data to protect species and ecosystems. In 1996, a proliferation of mountaintop removal coal mines in a region home to over 50 federally protected species was approved under the Endangered Species Act. Although this type of mining can degrade terrestrial and aquatic habitats, the available data and tools limited the ability to analyze spatially extensive, aggregate effects of such a program. We used two large, public datasets to quantify the relationship between mountaintop removal coal mining and water quality measures important to the survival of imperiled species at a landscape scale across Kentucky, Tennessee, Virginia, and West Virginia. We combined an annual map of the extent of surface mines in this region from 1985 to 2015 generated from Landsat satellite imagery with public water quality data collected over the same time period from 4,260 monitoring stations within the same area. The water quality data show that chronic and acute thresholds for levels of aluminum, arsenic, cadmium, conductivity, copper, lead, manganese, mercury, pH, selenium, and zinc safe for aquatic life were exceeded thousands of times between 1985 and 2015 in streams that are important to the survival and recovery of species on the Endangered Species List. Linear mixed models showed that levels of manganese, sulfate, sulfur, total dissolved solids, total suspended solids, and zinc increased by 6.73E+01 to 6.87E+05 μg/L and conductivity by 3.30E+06 μS /cm for one percent increase in the mined proportion of the area draining into a monitoring station. The proportion of a drainage area that was mined also increased the likelihood that chronic thresholds for copper, lead, and zinc required to sustain aquatic life were exceeded. Finally, the proportion of a watershed that was mined was positively related to the likelihood that a waterway would be designated as impaired under the Clean Water Act. Together these results demonstrate that the extent of mountaintop removal mining, which can be derived from public satellite data, is predictive of water quality measures important to imperiled species—effects that must be considered under environmental law. These findings and the public data used in our analyses are pertinent to ongoing re-evaluations of the effects of current mine permitting regulations to the recovery and survival of federally protected species.
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Zhou, Xue Lian. "Development and Utilization of Circular Economy and Urban Mining - Chengdu City Based Renewable Resource Industry Survey". Applied Mechanics and Materials 768 (junho de 2015): 644–51. http://dx.doi.org/10.4028/www.scientific.net/amm.768.644.

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Along with the process of economic growth and urbanization, China has entered a peak period of electronic appliances and automotive industry products obsolescence. On one hand, municipal waste disposal is increasing and causing environmental pollution and damage; on the other hand, native mineral resources’ exhaustion has increased year by year along with exploitation difficulty and mineral resources import growth. Meanwhile, urban industrial scrap, aka "urban mines", does contain abundant of renewable resources, such as copper, iron, and aluminum. Therefore, based on the theory of circular economy, the exploitation of these "urban mines" is the key strategic industry of China’s "12th five-year plan". This paper is based on the survey of Chengdu city regeneration resources industry situation. We analyzed the current status of regeneration resources recycling industry in Chengdu city, finding problems such as the number of existing garbage collection stations inadequate for renewable resources, and processing technology out of date. Generally speaking, the renewable resources industry in Chengdu is under developed.
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Blind, Felix, e Stefan Fränzle. "Biomining of ‘Heavy’ Metals and Lanthanides from Red Mud of a Former Lignite Mines by Sorption on Chitin". Polysaccharides 5, n.º 2 (14 de junho de 2024): 158–68. http://dx.doi.org/10.3390/polysaccharides5020012.

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In times of increasing demand for resources, processing various waste materials is becoming more economically and ecologically viable. Red mud is a waste material that originates from the bauxite process, also known as the Bayer process. Red mud, due to its high alkalinity and heavy metal content, is often stored in landfills, which can lead to accidents such as those in Brazil or Hungary, especially if the storage takes place above ground. Red mud contains not only iron and aluminum residues but also other economically valuable metals such as manganese, titanium, cadmium, or cobalt. Currently, only 4 million tons of the annual production of 150 million tons are utilized in various industries, which is a relatively small amount. Typically, only the iron content is further processed, leaving other potential resources untapped. Chitin has a high binding capacity for various trivalent and divalent metal ions, making it a suitable material for separating red mud into its components. It has been demonstrated that chitin can effectively remove aluminum, barium, cadmium, cobalt, copper, manganese, iron, nickel, lead, strontium, and various lanthanides from a red mud-like sludge. The elements bound to chitin can be easily removed using wet chemistry. Biologically compatible substances are predominantly used in this process, with few exceptions. The removal of elements from red sludge or other mining wastewater using chitin is a viable alternative to traditional mining methods.
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Li, Yinghong, Ruigang Zhang, Jinhua Luan, Deju Zhang, Wei Li, Tingting Zhang e Dong’er Zou. "Research on the development of three-dimensional visual management system for mines: A case study of Chongqing Shuijiang aluminum mine". E3S Web of Conferences 416 (2023): 01022. http://dx.doi.org/10.1051/e3sconf/202341601022.

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In recent years, problems such as unclear mine mining data and illegal mining have brought challenges to mine safety production, ecological environment restoration and mineral resources management. From the perspective of mine production and resource management, this study carried out research on the construction of 3D geological model and the development of visual management system based on multisource data fusion, and selected the Shuijiang aluminum mine in Nanchuan District, Chongqing as the research object to establish a set of 3D visual management system for mine. The visual management system can reflect the production status of the mine in real time, and browse, query, section, reserve and statistics of the three-dimensional model of the mine, which has important practical significance for the supervision of the production mine.
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Sheka, I., e Ye Tsivka. "Substantination of carbon fiber as an innovative materials for fistening of mining workings of coal mines". Collection of Research Papers of the National Mining University 64 (2021): 112–21. http://dx.doi.org/10.33271/crpnmu/64.112.

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Purpose. To analyze composite materials and prospects of their use as fastening materials for mining of coal mines.Perform a comparative analysis of the physical and mechanical properties of the innovative material carbon fiber and metallic materials, as well as compare their features. To determine the possibility of using carbon fiber as a fastening material for mining of coal mines. Research methodology. The generalization of physical and mechanical properties of carbon fiber on the basis of its analysis is performed. The features of mechanical properties of carbon fiber, steel and aluminum are compared, which showed that this composite material has the best physical and mechanical properties and it is expedient to use it in the fastening elements of mine workings. Research results. The areas of use of composite materials in industry are analyzed and generalized, and it is concluded that it is better to use carbon fiber as a fastening material for coal mine workings. A comparative analysis of the physical and mechanical properties of carbon fiber and steel is performed, which shows that this composite material has identical (and sometimes even better) properties as metallic materials. The advantages and disadvantages of carbon fiber as a fastening material for mining of coal mines are estimated. It is specified that the restraining factor, today, is the cost of carbon fiber, and later their price will decrease and demand will increase. It is concluded that when using this composite material in the fasteners of mine workings, it is possible to increase the pace of their implementation, reduce the complexity of the work performed and improve working conditions while facilitating the design. Scientific novelty. It is established that carbon fiber as a composite material can be used in the fastening elements of the preparatory workings of coal mines. Practical value. According to the results of the analysis, it is established that carbon plastics can be used in the fastening elements of mine workings, which will promote the development of underground coal mining.
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Petlovanyi, M., K. Sai e O. Stoliarska. "Problems of waste rock formation during mining of Western Donbass coal reserves: state-of-the-art and solutions". Collection of Research Papers of the National Mining University 71 (dezembro de 2022): 79–90. http://dx.doi.org/10.33271/crpnmu/71.079.

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Purpose. The research purpose is to analyze and generalize the problems of waste rock accumulation, as well as to determine the directions for their possible solution in order to improve the ecological-economic conditions for mining coal reserves in the Western Donbass. Methods. A comprehensive scientific-methodological approach is used, which consists in studying regional accounts on the state of the environment, data from the register of waste disposal sites in the Dnipropetrovsk Oblast, peculiarities of placement of dumps according to the Google Earth program and collected mine data. To study the feasibility of processing dumps, a SWOT-analysis is used, as well as the analysis of existing technologies for processing the rock mass from waste dumps, based on foreign and domestic experience. Findings. Nine rock dumps have been identified, formed as a result of the functioning of the Western Donbass coal mines, where almost 130 million tons of waste rocks have been accumulated on an area of about 190 hectares. It is noted that the reclamation of disturbed lands as the main means of rock utilization is insufficient. Based on a thorough analysis of the SWOT-analysis results, a strategic direction for processing has been determined – the use of rock mass as a raw material for construction (materials and roads) with accompanying extraction of coal, aluminum and iron. The existing technologies for the processing of waste rocks have been systematized. It has been determined that the largest scaling of waste dump processing in the Western Donbass mines can be achieved with a combination of mechanical-chemical methods, among which gravity and magnetic beneficiation methods, mechanical grinding and chemical leaching are priority. Originality. The mechanisms for handling coal waste from coal mines in the Western Donbass have been determined to solve ecological-economic problems associated with their accumulation. Practical implications. The research results reveal possible ways of solving the problems of waste rock accumulation in the Western Donbass mines, which makes ecological and economic sense.
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Hosoev, D. V., e V. V. Kiselev. "Effects of surfactant treatment on the strength of frozen overburden soil samples from coal deposits in the cryolithic zone". Mining Industry Journal (Gornay Promishlennost), n.º 6/2023 (25 de dezembro de 2023): 162–65. http://dx.doi.org/10.30686/1609-9192-2023-6-162-165.

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The harsh climatic conditions of the cryolithic zone with its long winter period and presence of permafrost soils significantly slow down all technological processes in surface mining. The resistance of frozen rocks at coal mines to digging with mining equipment can be reduced by their preliminary softening with the use of surfactants. The paper discusses the softening effect of aqueous surfactant solutions on samples of frozen overburden rocks. The authors demonstrate that treatment of rocks with solutions of optimal composition and concentration decreases their strength, which makes it possible to enhance the efficiency of In-Pit Crushing and Conveying Systems based on the rotary mechanical shovel in combination with a conveyor as well as the use of continuous miners. Experimental data are presented on the strength properties of artificially made samples of overburden rocks from the Kangalassky coal deposit saturated with surfactant solutions of different concentrations. The authors point out that the highest decrease in the samples strength is achieved when using aqueous solution of aluminum chloride. The results of experiments carried out to establish the effects of distilled water (H2O) and NaCl solutions of different concentrations on the strength properties of fine-grained sandstones from the Elga coal deposit are presented, which confirm that at the temperature of -10°С the maximum reduction of up to 55% is achieved in the strength of the samples, and when the temperature decreases from -10°С to -20°С a slight increase is observed in the sample strength. The authors suggest that the use of surfactants will reduce the strength of the frozen overburden soils, thus making it possible to apply a blast-free mining technology.
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Mais fontes

Teses / dissertações sobre o assunto "Aluminum mines and mining"

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Anderson, Jonathan D. "Impacts of amending bauxite residue sands with residue fines for the establishment of vegetation on residue disposal areas /". Murdoch University Digital Theses Program, 2009. http://wwwlib.murdoch.edu.au/adt/browse/view/adt-MU20090831.155453.

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Kopittke, Peter Martin. "Limitations to plant root growth in highly saline and alkaline bauxite residue /". [St. Lucia, Qld.], 2004. http://adt.library.uq.edu.au/public/adt-QU20040913.094109/index.html.

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Mengler, Faron. "Gully erosion on rehabilitated bauxite mines". University of Western Australia. School of Earth and Geographical Sciences, 2008. http://theses.library.uwa.edu.au/adt-WU2008.0176.

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[Truncated abstract] Landforms rehabilitated after bauxite mining can be vulnerable to soil loss by water erosion processes. On most rehabilitated sites, management controls such as deep ripping, contour mounding and landscaped sub-catchments limit erosion. Despite these measures, severe gully erosion that is anecdotally associated with steep slopes can damage rehabilitated areas and affect downstream drinking water resources. A review of erosion dynamics reveals that gullies develop episodically and in a non-linear manner. They often initiated as a near surface process and are influenced by natural climatic drivers. Despite this, local site characteristics including soil and landform can predispose an area to gully erosion. Moreover, erosion models, becoming more-widely utilized within the mining industry, may provide useful tools with which to measure, analyse, and manage gully erosion. One of these models, SIBERIA was tested to determine its suitability for application a tool to help manage erosion risk. We first surveyed 26 eroding and erosion-prone rehabilitated hillslopes to determine the common form and setting for gully erosion on these rehabilitated bauxite mines. A conceptual model was developed to include and explore the interplay between the common causes of the gullies surveyed. The conceptual model accounts for slope steepness but suggests that additionally, certain triggers and threshold effects operating under different site conditions are as influential (or even more influential) than slope steepness as determinants of gully erosion occurrence and severity. ... Soil properties and soil erodibility had some subtle influence on landform stability and erosion risk. The most-erodible media occurred where either: mine floor material was mixed with topsoil/ overburden; and/or the topsoil/overburden layer was thin or its coverage is patchy resulting in slaking subsoil, hardsetting soil and surface crusts. When erodible surface media were combined with steeper (>8[degrees]) or longer (>50 m) slopes or with any major erosion trigger, rill and gully development was greatly intensified. The SIBERIA simulation model was calibrated and its simulated outputs were compared to known locations of gully erosion on a steep, rehabilitated pit from the Willowdale mine. At a resolution of one metre, SIBERIA was able to simulate the approximate dimensions of gullies. However, SIBERIA could not simulate the exact location of individual gully headcuts. Additionally, SIBERA was able to simulate the effect of different microtopographic surface treatments but this was only achieved by increasing the grid resolution to 25 cm and reducing the size of the area simulated due to model constraints. Locations of gully headcuts were overlain onto a grid-based, Digital Elevation Model (DEM) using a Geographic Information System (GIS). The spatial distribution of gully headcut locations was compared to DEM derivatives such as slope and flow accumulation. Positive, and predictive relationships allow between the steepness of the slope of the pre-mining landform and the cell count of the area contributing to flow (catchment), as determined by GIS, may allow a mine scale indication of erosion risk using simple GIS desktop analysis.
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Dias, Fabiana Ferrari. "Percepção da população em relação as empresas de lavra e beneficiamento de Bauxita no municipio de Poços de Caldas, MG". [s.n.], 2007. http://repositorio.unicamp.br/jspui/handle/REPOSIP/287123.

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Orientador: Rachel Negrão Cavalcanti
Tese (doutorado) - Universidade Estadual de Campinas, Instituto de Geociencias
Made available in DSpace on 2018-08-09T15:11:01Z (GMT). No. of bitstreams: 1 Dias_FabianaFerrari_D.pdf: 11281113 bytes, checksum: 92b77a510956fc2cc26128258cf02bf2 (MD5) Previous issue date: 2007
Resumo: Intensas atividades de mineração na região de Poços de Caldas se tornaram o objeto de sérias discussões. O alumínio é extraído da bauxita encontrada em áreas próximas à malha urbana. A população está ciente de tais atividades de mineração, entretanto, não há um claro entendimento sobre impactos sociais e ambientais. Questionários cuidadosamente preparados foram submetidos aos representantes da população, aos membros voluntários das ONGs locais e aos governantes pertinentes. Bancos de dados federais foram utilizados para reunir informações sobre áreas locais de concessões de mineração. Resultados georeferenciados indicaram que a população possui uma percepção positiva sobre as atividades de mineração e está ciente da sua importância. Entretanto, o estudo foi capaz de identificar algumas deficiências nas estratégias de comunicação empregadas pelas empresas de mineração. Esta Tese é uma fonte de dados para a percepção da população em relação às atividades de mineração e foi empregada para criar um banco de dados GIS. Em adição, apontou estratégias modernas que podem ajudar a melhorar o relacionamento entre as empresas de mineração e a população local e direcionar outros projetos similares envolvendo variadas atividades de mineração próximas às áreas urbanas
Abstract: Intense mining activities in the region of Poços de Caldas have become the object of serious discussion. Aluminum is extracted from bauxite ore found in areas near urban developments. The population is aware of such mining activities, however, there is no clear understanding regarding social and environmental impacts. Carefully prepared questionnaires were submitted to representatives from the general population, to volunteer members of local NGOs, and government authorities. Available government databases were employed to gather information about local mining concession areas. Georeferenced results indicated that the population perception towards mining activities is positive and the population is aware of its importance. However, the study was able to identify some deficiencies in communication strategies employed by the mining companies. This thesis is a source of data for population perception regarding mining activities and was employed to create a GIS database. In addition, it pointed out modern strategies that can help to improve the relation between mining companies and the local population and guide other similar projects involving diverse mining activities near urban areas
Doutorado
Administração e Politica de Recursos Minerais
Doutor em Ciências
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Prananto, Agnes Kristina. "The use of remotely sensed data to analyse spatial and temporal trends in vegetation patchiness within rehabilitated bauxite mines in the Darling Range, W.A. /". Connect to this title, 2005. http://theses.library.uwa.edu.au/adt-WU2006.0012.

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Collins, Margaret Thora. "Factors affecting the recovery of orchids in a post-mining landscape". University of Western Australia. School of Earth and Geographical Sciences, 2008. http://theses.library.uwa.edu.au/adt-WU2008.0022.

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[Truncated abstract] Currently, Alcoa World Alumina Australia (Alcoa) mines and undertakes procedures to rehabilitate approximately 550 ha of jarrah forest each year at two open-cut bauxite mines in South-West Western Australia. Alcoa aims to establish a self-sustaining jarrah forest ecosystem that maintains the functions of the landscape prior to mining, including biodiversity, on areas that have been mined for bauxite. Indigenous terrestrial orchids form a significant proportion of the indigenous geophytic plant species that either fail to colonise rehabilitated areas or do so very slowly. Terrestrial orchids are considered to be particularly sensitive to competition from weeds and disturbance, which combined with the obligate nature of the orchid-mycorrhizal fungus association suggests that orchids would colonise rehabilitation areas only when both microhabitat sites and soil microflora have established. Occurrence of certain orchids may therefore be expected to be useful as indicators of ecosystem health, the success of vegetation establishment and the recovery of edaphic conditions suitable for orchid mycorrhizal fungi. Vegetation surveys were undertaken to compare orchid species richness and population size of a chrono-sequence of rehabilitation areas with adjacent unmined forest. ... Orchid taxa present in each vegetation assemblage were generally not exclusive to these assemblages, with the following broad exclusions: D. bracteata was found only in species assemblages associated with rehabilitation areas; and Eriochilus sp. and T. crinita were found only in species assemblages associated with unmined forest. No single orchid species appears to be an indicator of ecosystem recovery. However, the presence of populations of C. flava, P. sp. crinkled leaf (G.J.Keighery 13426) or P. recurva in combination with the absence of the disturbance opportunist orchid taxa D. bracteata and M. media appears to be a measure of the maturity of the rehabilitation vegetation. Orchid species richness and clonal orchid population size were correlated with changes in vegetation structure, but apart from the absence of orchids in 1 year old rehabilitation areas, these orchid population characteristics did not show any direct relationship with rehabilitation age or vegetation maturity. Only two orchid taxa appeared to have potential as indicators of vegetation characteristics: T. crinita as an indicator of undisturbed jarrah forest; and D. bracteata as an indicator of disturbed ecosystems. The results of this study suggest that most jarrah forest orchid taxa will readily colonise the post bauxite mining landscape, but that the unassisted colonisation by recalcitrant orchid taxa may be a prolonged process. It is recommended that field-based transplantation and/or seeding trials be undertaken with these recalcitrant taxa to determine if these procedures will enhance recruitment. The results of this work have applications not only in the management of post-mining landscapes but also in vegetation monitoring and conservation work in Western Australia and elsewhere.
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Hellyer, William N. "Assessment of Benthic Macroinvertebrate Community Impairment from High-Aluminum Acid Mine Drainage in Middleton Run, Ohio, USA and the Impact of Ingested Aluminum on Crayfish Growth". Ohio University / OhioLINK, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1399465953.

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Bleby, Timothy Michael. "Water use, ecophysiology and hydraulic architecture of Eucalyptus marginata (jarrah) growing on mine rehabilitation sites in the jarrah forest of south-western Australia". University of Western Australia. School of Plant Biology, 2003. http://theses.library.uwa.edu.au/adt-WU2004.0004.

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[Truncated abstract. Please see the pdf format for the complete text. Also, formulae and special characters can only be approximated here. Please see the pdf version for an accurate reproduction.] This thesis examines the water use, ecophysiology and hydraulic architecture of Eucalyptus marginata (jarrah) growing on bauxite mine rehabilitation sites in the jarrah forest of south-western Australia. The principal objective was to characterise the key environment and plant-based influences on tree water use, and to better understand the dynamics of water use over a range of spatial and temporal scales in this drought-prone ecosystem. A novel sap flow measurement system (based on the use of the heat pulse method) was developed so that a large number of trees could be monitored concurrently in the field. A validation experiment using potted jarrah saplings showed that rates of sap flow (transpiration) obtained using this system agreed with those obtained gravimetrically. Notably, diurnal patterns of transpiration were measured accurately and with precision using the newly developed heat ratio method. Field studies showed that water stress and water use by jarrah saplings on rehabilitation sites were strongly seasonal: being greatest in summer when it was warm and dry, and least in winter when it was cool and wet. At different times, water use was influenced by soil water availability, vapour pressure deficit (VPD) and plant hydraulic conductance. In some areas, there was evidence of a rapid decline in transpiration in response to dry soil conditions. At the end of summer, most saplings on rehabilitation sites were not water stressed, whereas water status in the forest was poor for small saplings but improved with increasing size. It has been recognised that mature jarrah trees avoid drought by having deep root systems, however, it appears that saplings on rehabilitation sites may have not yet developed functional deep roots, and as such, they may be heavily reliant on moisture stored in surface soil horizons. Simple predictive models of tree water use revealed that stand water use was 74 % of annual rainfall at a high density (leaf area index, LAI = 3.1), high rainfall (1200 mm yr-1) site, and 12 % of rainfall at a low density (LAI = 0.4), low rainfall (600 mm yr-1) site, and that water use increased with stand growth. A controlled field experiment confirmed that: (1) sapling transpiration was restricted as root-zone water availability declined, irrespective of VPD; (2) transpiration was correlated with VPD when water was abundant; and (3) transpiration was limited by soil-to-leaf hydraulic conductance when water was abundant and VPD was high (> 2 kPa). Specifically, transpiration was regulated by stomatal conductance. Large stomatal apertures could sustain high transpiration rates, but stomata were sensitive to hydraulic perturbations caused by soil water deficits and/or high evaporative demand. No other physiological mechanisms conferred immediate resistance to drought. Empirical observations were agreeably linked with a current theory suggesting that stomata regulate transpiration and plant water potential in order to prevent hydraulic dysfunction following a reduction in soil-to-leaf hydraulic conductance. Moreover, it was clear that plant hydraulic capacity determined the pattern and extent of stomatal regulation. Differences in hydraulic capacity across a gradient in water availability were a reflection of differences in root-to-leaf hydraulic conductance, and were possibly related to differences in xylem structure. Saplings on rehabilitation sites had greater hydraulic conductance (by 50 %) and greater leaf-specific rates of transpiration at the high rainfall site (1.5 kg m-2 day1) than at the low rainfall site (0.8 kg m-2 day1) under near optimal conditions. Also, rehabilitation-grown saplings had significantly greater leaf area, leaf area to sapwood area ratios and hydraulic conductance (by 30-50 %) compared to forest-grown saplings, a strong indication that soils in rehabilitation sites contained more water than soils in the forest. Results suggested that: (1) the hydraulic structure and function of saplings growing under the same climatic conditions was determined by soil water availability; (2) drought reduced stomatal conductance and transpiration by reducing whole-tree hydraulic conductance; and (3) saplings growing on open rehabilitation sites utilised more abundant water, light and nutrients than saplings growing in the forest understorey. These findings support a paradigm that trees evolve hydraulic equipment and physiological characteristics suited to the most efficient use of water from a particular spatial and temporal niche in the soil environment.
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Lalor, Briony Maree. "An assessment of the recovery of the microbial community in jarrah forest soils after bauxite mining and prescription burning". University of Western Australia. School of Earth and Geographical Sciences, 2009. http://theses.library.uwa.edu.au/adt-WU2010.0037.

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[Truncated abstract] Recovery of soil nutrients, microbial populations and carbon (C) and nitrogen (N) cycling processes are critical to the success of rehabilitation following major ecosystem disturbance. Bauxite mining represents a major ecosystem disturbance to the jarrah (Eucalyptus marginata) forest in the south-west of Western Australia. Mining has created a mosaic of mined areas in various stages of succession surrounded by non-mined forest areas. Initial site preparations within rehabilitation areas such as contour ripping alter soil structure (creation of mound and furrows) and over time also influence the distribution of vegetation and litter. Current performance criteria developed by industry, government and other stakeholders have determined that before post-bauxite mined areas of jarrah forest can be integrated back into normal forest management practises they should be functional and demonstrate resilience to normal forest disturbances such as fire. Furthermore, resilience should be of a manner comparable to non-mined analogue forest sites. Currently little is known of the resilience of microbial communities and C and N cycling in rehabilitation sites to normal forest disturbances such as prescription burning. As such, before rehabilitated jarrah forests can be successfully integrated into broad scale forest management regimes, a more thorough knowledge of the potential impacts of burning practises on the soil microbial community and C and N cycling processes in these systems is required. ... While there are similar rates of C and N cycling the underlying microbial community structure was distinctly different; implying a high degree of functional redundancy with respect to C and N cycling. Differences in the C and N cycling and structure of the microbial communities were likely to be due to differences in soil environmental conditions (i.e. soil alkalinity/acidity, soil moisture) and C substrate availability which influence the physiological status of the microbial community and in turn are related to successional age of the forests. Results also suggest that the measurement of CLPP can be a useful approach for assessment of changes in the functional ability of microbial communities. However, the interpretation of how well these rehabilitation forests have recovered heterotrophic abilities was greatly affected by the methodological approach used (e.g. MicroRespTM or Degens and Harris, 1997). Importantly, results from Chapter 4 and 5 suggested that the effects of a moderate prescription fire on C and N processes, CLPP and microbial community structure of 18 year old rehabilitation forests are likely to be short-lived (< 2 years). Furthermore, the effects of the moderate spring prescription fire were not large enough to decouple C and N cycling processes over the short-term (< 1 years) which suggests that by 18 years of age rehabilitation forests demonstrate comparable functional resilience to a moderate prescription burn.
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Prananto, Agnes Kristina. "The use of remotely sensed data to analyse spatial and temporal trends in vegetation patchiness within rehabilitated bauxite mines in the Darling Range, W.A". University of Western Australia. School of Earth and Geographical Sciences, 2006. http://theses.library.uwa.edu.au/adt-WU2006.0012.

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[Truncated abstract] The assessment of rehabilitation success is time consuming and costly for bauxite miners because large areas of land (~550 ha per year) are involved. In some cases, rehabilitation results in patches of bare or sparsely vegetated soil. This study uses remote sensing imagery to evaluate the growth of vegetation in rehabilitated bauxite mines in the Darling Range, W.A. This work has five aims, which are to (1) compare vegetation biomass within rehabilitated areas and nearby native forest; (2) analyse temporal changes in vegetation growth within the selected rehabilitated areas, in particular rehabilitated areas with patches of bare soil; (3) compare vegetation growth pre- and post- mining; (4) identify the best type of remotely sensed data for this particular study area, and (5) develop an index, which can classify the degree of vegetation patchiness within rehabilitated mine sites. This information will enable rehabilitation workers to identify patches in rehabilitated areas that may require further remediation. The study used RADARSAT, nine years of Normalised Difference Vegetation Index (NDVI) maps (extracted from LANDSAT TM multivariate imagery and Quickbird imagery) and aerial photographs to evaluate forty-seven ~1 ha study sites. Image and map analyses were conducted mainly using ESRI’s software ArcGIS 8.3 and ER Mapper 6.4. Ground truthing was carried out to confirm and recognise the causes of bare patches within the rehabilitated mine sites ... The results indicate that differences in rehabilitation management do not affect this index but the extent of bare patches does. Due to the sensitivity of radar imagery to surface roughness, rehabilitated areas cannot be distinguished from the native forest using radar images. A building (crusher) appears to be the same as mature vegetation. Knowledge of the features in an area is therefore crucial when utilising RADARSAT. The beam elevation angle and profile of the RADARSAT image used, made superimposition of radar and optical imageries impossible. Speckle noise in RADARSAT images made it impossible to detect relatively small bare patches. In addition, the many cloud free days in Western Australia make optical imaging possible so that the ability of radar imagery to penetrate cloud is redundant for this type of study.
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Livros sobre o assunto "Aluminum mines and mining"

1

Sehnke, Errol D. Bauxite mines worldwide. Washington, D.C: U.S. Dept. of the Interior, U.S. Bureau of Mines, 1995.

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Sukharina, A. N. Istorii͡a︡ poiskov, razvedki i osvoenii͡a︡ mestorozhdeniĭ ali͡u︡minievogo syrʹi͡a︡ v Zapadnoĭ Sibiri. Novisibirsk: BO "Nauka", 1993.

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Ahmad, Zaki. Aluminium. Quetta: Geological Survey of Pakistan, 1991.

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4

Shandong Wang Cun lü tu kuang. 王村铝土矿志: Quan 1 juan, 1962-1985. Shandong Sheng: Shandong Wang Cun lü tu kuang, 1986.

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Mines, Indian Bureau of, ed. Monograph on bauxite. Nagpur: Govt. of India, Ministry of Mines, Indian Bureau of Mines, Training, Mining Research and Publication Division, Publication Cell, 1992.

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Akademia e Shkencave dhe e Arteve e Kosovës, ed. Boksitet e Dukagjinit: The bauxites of Dukagjini. Prishtinë: Akademia e Shkencave dhe e Arteve e Kosovës, 2015.

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Research Unit for Livelihoods and Natural Resources (Hyderabad, India) e Centre for Economic and Social Studies, Hyderabad, eds. Bauxite mining in Koraput Region of Odisha: Socio-economic impact analysis. Hyderabad: Research Unit for Livelihoods and Natural Resources, 2013.

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Kölfen, Hans-Peter. Monetäre Bewertung ökologischer Effekte im Bergbau durch die Zahlungsbereitschaftsmethode. Baden-Baden: Nomos, 2000.

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Machado, R. C. Apontamentos da história do alumínio primário no Brasil. [Ouro Preto]: Fundação Gorceix, 1985.

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Austria), AUSTROPLAN (Organization :. Integrated exploitation and processing of Mulanje/Manica bauxite and establishment of alumina/aluminium industry in the SADCC region: Final report. Vienna, Austria: AUSTROPLAN, 1990.

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Capítulos de livros sobre o assunto "Aluminum mines and mining"

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Kuhnt, W., P. Knoll, H. Grosser e H. J. Behrens. "Seismological Models for Mining-Induced Seismic Events". In Seismicity in Mines, 513–21. Basel: Birkhäuser Basel, 1989. http://dx.doi.org/10.1007/978-3-0348-9270-4_14.

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Ali Elbeblawi, Mostafa Mohamed, Hassan Ali Abdelhak Elsaghier, Mostafa Tantawy Mohamed Amin e Wael Rashad Elrawy Abdellah. "Prevention of Slides in Surface Mines". In Surface Mining Technology, 105–32. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-3568-7_4.

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Jech, Jiří. "Seismic Tomography in the Ostrava-Karviná Mining Region". In Seismicity in Mines, 597–608. Basel: Birkhäuser Basel, 1989. http://dx.doi.org/10.1007/978-3-0348-9270-4_19.

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Young, R. P., D. A. Hutchins, J. McGaughey, J. Towers, D. Jansen e M. Bostock. "Geotomographic Imaging in the Study of Mining Induced Seismicity". In Seismicity in Mines, 571–96. Basel: Birkhäuser Basel, 1989. http://dx.doi.org/10.1007/978-3-0348-9270-4_18.

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Šilený, Jan. "The Mechanism of Small Mining Tremors from Amplitude Inversion". In Seismicity in Mines, 309–24. Basel: Birkhäuser Basel, 1989. http://dx.doi.org/10.1007/978-3-0348-9270-4_4.

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Unger, Corinne. "Legacy Issues and Abandoned Mines". In Mining in the Asia-Pacific, 333–69. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-61395-6_20.

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Udd, J. E. "Backfill research in Canadian Mines". In Innovations in Mining Backfill Technology, 3–13. London: CRC Press, 2021. http://dx.doi.org/10.1201/9781003211488-2.

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Tuttle, Carolyn. "The Mining Industry". In Hard at Work in Factories and Mines, 141–82. New York: Routledge, 2021. http://dx.doi.org/10.4324/9780429036989-5.

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Young, R. P., S. Talebi, D. A. Hutchins e T. I. Urbancic. "Analysis of Mining-Induced Microseismic Events at Strathcona Mine, Sudbury, Canada". In Seismicity in Mines, 455–74. Basel: Birkhäuser Basel, 1989. http://dx.doi.org/10.1007/978-3-0348-9270-4_11.

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Young, R. Paul. "Fred Leighton Memorial Workshop on Mining Induced Seismicity August 30, 1987". In Seismicity in Mines, 285–93. Basel: Birkhäuser Basel, 1989. http://dx.doi.org/10.1007/978-3-0348-9270-4_2.

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Trabalhos de conferências sobre o assunto "Aluminum mines and mining"

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Korotenko, O. Yu, E. S. Filimonov e N. I. Panev. "COMPARATIVE ECHOCARDIOGRAPHIC STUDY OF TRAINED WORKERS OF THE MAIN PROFESSIONS OF THE COAL AND ALUMINUM INDUSTRY". In The 17th «OCCUPATION and HEALTH» Russian National Congress with International Participation (OHRNC-2023). FSBSI «IRIOH», 2023. http://dx.doi.org/10.31089/978-5-6042929-1-4-2023-1-225-228.

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The coal mining and metallurgical industries are characterized by the presence of harmful production factors, the negative effects of which, in concentrations exceeding the maximum permissible levels, can lead to myocardial remodeling and impaired heart function. The objective of the study — conduct a comparative echocardiographic study in trained workers in the main professions of the coal and aluminum industries. Material and methods. The study included 62 miners and 42 workers of the main professions of aluminum production with more than 20 years of work experience in hazardous working conditions, aged 40‑55 years (p=0.190). The subjects did not have any somatic pathology that could lead to structural and functional changes in the heart. All underwent echocardiography according to the standard technique with automatic calculation of the global longitudinal deformation of the left ventricle. Results. There were no differences between the geometric parameters of the left parts of the heart between the groups. Lower values of the ejection fraction of the left ventricle and its longitudinal deformation were found in aluminum industry workers (p=0.037 and p=0.0062). The average speed of the mitral ring also turned out to be significantly lower in metallurgists (p=0.00007). A decrease in longitudinal deformation of the left ventricle was found in 14.5% of miners and 26.8% of metallurgists, p=0.122. There were no significant differences in the parameters of diastolic function of the left ventricle. Conclusion. Indicators of contractile function of the left ventricle in workers of the aluminum industry were significantly lower compared to those in miners, which indicates the need for preclinical diagnosis of left ventricular systolic dysfunction, dynamic monitoring and timely prevention.
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Asadizadeh, M., A. Hedayat, L. Tunstall, M. Taboada Neira, J. A. Vega González e J. W. Verá Alvarado. "Mechanical Properties of Lightweight Aggregates Produced from Mine Tailings via Alkali-Activation". In 57th U.S. Rock Mechanics/Geomechanics Symposium. ARMA, 2023. http://dx.doi.org/10.56952/arma-2023-0838.

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ABSTRACT This study investigated the production of lightweight aggregates (LWAs) from mine tailings (MTs) using an alkali activation approach. The main objective was to reduce the environmental and cost impacts of handling tailings while producing a useful material for the construction industry. The alkali activation process was used to activate the aluminum oxide and silicon dioxide in MTs to produce LWAs, which were then characterized for physical properties. A pelletization technique was practiced, using a disk granulator machine to spray a 10 M NaOH solution on the MTs with a liquid/solid ratio of 0.25. The produced LWAs were cured at temperatures 70 °C±2°C, and the properties of the resulting materials were assessed as a function of the type of fly ash used (class C and F fly ash). Results showed that using Class F fly ash is more successful for making LWAS, and its increasing percentage in the mixture led to increased compressive strength and relative and bulk densities and decreased water absorption and porosity. This study highlights the potential for producing sustainable construction materials from MTs using alkali activation, which could reduce the environmental impacts of MTs while producing useful materials for the construction industry. INTRODUCTION Minerals are in high demand, and as a result, mine tailings (MTs), a byproduct of the mining industry, are produced in high volumes. After the important metals have been extracted from ore through a process called mineral processing, the crushed waste rocks that remain are transferred to the tailings dam. Between 5 and 7 billion tons of tailings are made each year by the mining industry (Qi & Fourie, 2019; Wang et al., 2022). Large volumes of MTs with a high sulfide content can be produced during mining operations, especially from mines with low-grade ore deposits such as gold, and porphyry copper. This can cause several problems including occupation of large areas of land and leaching of contaminants into water sources. Some researchers have looked into ways to mitigate the negative effects of MTs on the environment, such as repurposing them as backfill material (Behera et al., 2021) or utilizing them in the form of supplementary cementitious materials (Ince et al., 2021) or alkali-activated binders (Koohestani et al., 2021). Alkaline activation has been proven as a promising method for production of geopolymers from raw tailings with aluminosilicate contents (Falayi, 2020; Tho-In et al., 2018; Zhang et al., 2021; Zhang et al., 2022a; Zhang, et al., 2022b). Geopolymers are a type of inorganic substance made by alkaline activation of aluminosilicate-rich source materials at temperatures typically below 100 °C (Davidovits, 2020; Zhang et al., 2022b). Aluminosilicate-based geopolymers rely heavily on the Si:Al ratio and are made up of the four cell structures, including sialate (Si:Al = 1), sialate siloxo (Si:Al = 2), sialate disiloxo (Si:Al =3), and sialate-multisiloxo (Si: Al&gt;3). The mechanical properties of geopolymers are controlled by the ratio of Si to Al, and MTs often don't contain sufficient amounts of reactive aluminosilicates (i.e., Si:Al &lt; 2). As a result, improving geopolymerization requires including reactive aluminosilicates and modifying the type of cell structures in alkali-activated materials (AAMs). Extensive studies have been conducted to improve the geopolymer's mechanical properties by adding amorphous aluminosilicates from other sources, such as fly ash (Farina et al., 2018; Jiao et al., 2013; Tian et al., 2020; Zhang et al., 2022b).
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Johnson, Tait. "From Earth to Tower: The Materialist Philosophy of Twentieth-Century Aluminum Producers". In 109th ACSA Annual Meeting Proceedings. ACSA Press, 2021. http://dx.doi.org/10.35483/acsa.am.109.49.

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The history of aluminum production in the United States is a reflection upon tangible materials, shifting power plays for ecological resources in the context of rapidly-expanding consumerism, and the focus of this paper, the perceived revolutionary properties of aluminum. Aluminum producers believed that the material possessed an extraordinary ability to solve spatial problems, represent beauty, and ultimately bring prosperity. Within this context, producers and manu¬facturers competing in the architectural products market left an indelible mark on the built environment with a wide range of components. Cladding, however, is the most visible mark. This paper follows the process of aluminum cladding production from Bauxite mine to the installation of aluminum panels on two high rise towers in the mid-twentieth century: the Alcoa Tower, Pittsburgh, 1953, and Republic National Bank, Dallas, 1954. Increased scrutiny of this process reveals an underlying philosophy of materialism similar to contemporary philosophies of “New Materialisms” which advocate the abilities of materials outside of the human domain. The producers’ materialist beliefs helped substantiate their drive to extract raw materials at great expense and with much exhaustion of natural resources, which continues today. The process of twentieth-century aluminum production involved damming the world’s largest rivers for power, claiming resources on domestic and colonial lands, and the employment of human capital. Boosted significantly by war production, in which producers manufactured aluminum air¬craft parts, gun turrets and munitions, the postwar result was often a clean, lightweight and shiny aluminum panel, contrasting sharply with the gritty production process of mining, processing and manufacturing. Yet, this contrast is precisely a manifestation of the producers’ materialist philosophy, which maintained the properties of aluminum, liberated from the earth, could help bring about a prosperous future. Such a future was a leading marketing message of producers, promoted in so-called “homes of the future” and cities of aluminum, but also made in promises that aluminum could bring about prosperity. A tall, gleaming corporate tower of aluminum symbolized the producers’ claims about the agency of aluminum. Examining the archives of Alcoa and Reynolds – the two largest domestic aluminum producers of the twentieth century, this paper explains how producers’ beliefs about material agency underpinned the vast expansion of aluminum into the building products market. Aluminum spread widely from the mid-twentieth century onward, growing in use today on a global scale. Furthermore, this paper invites a deeper look at the ways in which the beliefs about the inherent abilities of materials motivated other material producers in their contribution to architectural modernism.
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Everett, Jim. "An Information System for a Bauxite Mine". In InSITE 2007: Informing Science + IT Education Conference. Informing Science Institute, 2007. http://dx.doi.org/10.28945/3062.

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Bauxite is mined and transported by conveyor to a processing plant, screened and washed, then placed into blended stockpiles to feed the alumina refinery. While being stacked to the stockpile, the ore is sampled. Completed stockpiles must be acceptably close to target grade (composition), not only in alumina, but also in residual silica, carbon and sodium carbonate. The mine is an open-cut pit. Each day the choice of ore to mine, from multiple locations in the pit, is based upon estimates of grade. Estimated grade, from exploration drilling of the area before mining, has both systematic and random error. This paper describes an information system to guide the daily choice of ore to mine. Continually updating the comparison between forecasts and sampled product, the system provides adjusted forecasts. Ore is selected to bring the exponentially smoothed grade to target, in each of the control minerals.
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Shabani, F., M. Asadizadeh, A. Hedayat, L. Tunstall, B. P. Gorman, M. Taboada Neira, J. A. Vega González e J. W. Verá Alvarado. "Production of Ceramic from Sulfidic Mine Tailings and Investigation of Fracture Toughness Under Mode I Loading". In 57th U.S. Rock Mechanics/Geomechanics Symposium. ARMA, 2023. http://dx.doi.org/10.56952/arma-2023-0842.

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ABSTRACT Mine tailings (MTs) are the waste of mining operations after the valuable metals have been extracted. Given the significant quantities produced globally, the deposition of MTs causes problems including occupation of large areas of land and environmental contamination by toxic leachates. The production of sustainable construction materials from MTs is an environmentally friendly solution to reduce the consumption of natural resources and decrease their adverse impacts on the environment. This study investigates the feasibility of using sulfidic MTs in the production of ceramics. A targeted physical, mineralogical, and chemical characterization of the tailings resulted in the development of a production process that involved grinding the raw tailings, mixing with binders, pressing circular specimens, and then sintering. The properties of sintered ceramics, including crystalline phase, density, water absorption, and compressive strength, were investigated. The mode I fracture toughness of the ceramics was assessed by subjecting a notched semi-circular bending (NSCB) specimen to three-point bending loading. The full-field strains on the surface of the specimens were measured using Digital Image Correlation (DIC) technique, and as a result mode I fracture toughness of ceramics and crack propagation from the existing notch were successfully evaluated. INTRODUCTION The disposal of vast amounts of MTs is considered one of the most significant environmental concerns in the mining industry. The presence of contaminated materials after extracting valuable metals such as gold, silver, and copper can lead to harmful environmental consequences. MTs occupy an extensive area of land in the form of mud-like material in tailing ponds or behind storage dams (Barrie et al., 2015; Kossoff et al., 2014). Exposure of sulfide minerals to water and air typically leads to acid mine drainage which is a widespread environmental hazard resulting from seepage and dam failure. This process can impact groundwater and surface water leading to high levels of iron, aluminum, metals, and sulfates (Kinnunen et al., 2018; Nordstrom, 1999). Over the past few years, a number of researchers studied the potential risks to human health and the harm caused by soils that have been contaminated with heavy metal mine tailings (Ngole-Jeme and Fantke, 2017; Ogola et al., 2002; Olobatoke and Mathuthu, 2016).
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Dinu, Laurentiu Razvan, Ioan Balaiu, Ionut Cristea, Viorel Ion Patroescu, Cristiana Cosma, Lucian Alexandru Constantin, Valeriu Robert Badescu e Mihaela Alexie. "TOWARDS MINING THE MINE WATER - RECOVERY OF ALUMINIUM AND MANGANESE". In International Symposium "The Environment and the Industry". National Research and Development Institute for Industrial Ecology, 2016. http://dx.doi.org/10.21698/simi.2016.0050.

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Veatch, Steven W., C. Robert Carnein, Marge Breth, Dan Alfrey, Wayne Johnston, Roger Loest, Dee Loest et al. "Victor -- Colorado's city of mines: its history, geology, mines, and minerals". In 30th Annual New Mexico Mineral Symposium and 1st Annual Mining Artifact Collectors Association Symposium. Socorro, NM: New Mexico Bureau of Geology and Mineral Resources, 2009. http://dx.doi.org/10.58799/nmms-2009.336.

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Brenchley, Paul, Linda Snyman, Jogi Samosir e Bonnie Coxon. "Redevelopment support at Northparkes Mines". In Seventh International Symposium on Ground Support in Mining and Underground Construction. Australian Centre for Geomechanics, Perth, 2013. http://dx.doi.org/10.36487/acg_rep/1304_30_brenchley.

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Jordaan, Johan. "Determining waste mining capacities for open pit mines". In Fourth International Seminar on Strategic versus Tactical Approaches in Mining. Australian Centre for Geomechanics, Perth, 2011. http://dx.doi.org/10.36487/acg_rep/1108_27_jordaan.

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Jakubec, Jaroslav, Daniel Lagace, William Boggis, Lyndon Clark e Philip Lewis. "Underground mining at Ekati and Diavik diamond mines". In Fourth International Symposium on Block and Sublevel Caving. Australian Centre for Geomechanics, Perth, 2018. http://dx.doi.org/10.36487/acg_rep/1815_03_jakubec.

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Relatórios de organizações sobre o assunto "Aluminum mines and mining"

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Udd, J. E., e J. Pathak. Mining automation in Canadian hardrock mines - a progress report. Natural Resources Canada/CMSS/Information Management, 1991. http://dx.doi.org/10.4095/328903.

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Bobrow, Danny J., Gary D. Johnpeer e Glenn R. Osburn. Abandoned mines survey, Magdalena mining district, Socorro County, New Mexico--Final report. New Mexico Bureau of Geology and Mineral Resources, 1986. http://dx.doi.org/10.58799/ofr-246.

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van Staal, C. R., e W. M. Luff. The Brunswick No. 12 and No. 6 Mines, Brunswick Mining and Smelting Corporation Limited. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1991. http://dx.doi.org/10.4095/132270.

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Pundt, Heather. Mining Culture in Roman Dacia: Empire, Community, and Identity at the Gold Mines of Alburnus Maior ca.107-270 C.E. Portland State University Library, janeiro de 2000. http://dx.doi.org/10.15760/etd.800.

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Chenoweth, William L. The geology, leasing and production history of the Red Wash Point uranium-vanadium mines on H. S. Begay's mining permits, San Juan County, New Mexico. New Mexico Bureau of Geology and Mineral Resources, 1997. http://dx.doi.org/10.58799/ofr-432.

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Neubert, John T., e Robert H. Wood II. OF-01-13 History, Geology, and Environmental Setting of Selected Mines in the Chalk Creek Mining District, Pike/San Isabel National Forest, Chaffee County, Colorado. Colorado Geological Survey, 2001. http://dx.doi.org/10.58783/cgs.of0113.lfcq4714.

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Wood II, Robert H. OF-03-13 History, Geology and Environmental Setting of the Southern Cross and 7D Mines, Hahns Peak Mining District, Routt National Forest, Routt County, Colorado. Colorado Geological Survey, 2003. http://dx.doi.org/10.58783/cgs.of0313.mitj6094.

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Савосько, Василь Миколайович, Юлія Бєлик e Юрій Васильович Лихолат. Ecological and Geological Determination of the Initial Pedogenesis on Devastated Lands in the Kryvyi Rih Iron Mining & Metallurgical District (Ukraine). Journ. Geol. Geograph. Geoecology, 2019. http://dx.doi.org/10.31812/123456789/3643.

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In our time, a very urgent problem is the cessation of negative impacts on the environment and the return to the practical use of the territories of devastated lands. In this regard, it is important to find out the basic laws of primary soil formation in the area of these man-made neoplasms. The initial soil formation conditions were analyzed on 19 experimental sites which represent the main varieties of devastated land in the Kryvyi Rih Iron Mining and Metallurgical District (Central Ukraine): (i) waste rock dumps of old iron mines (old name “Forges”), (ii) tailing storage facility of underground iron mines, (iii) waste rock dumps of the Iron Ore Mining and Dressing Plant, (iv) waste rock dumps of the Granite Quarry Plant. It was established that on the devastated lands in Kryvyi Rih District, the initial soil formation occurs in very difficult conditions. Therefore, over 25- 100 years only very primitive soils were formed. The following features are inherent to them: (1) primitive soil profile (thickness 10-100 mm), (2) low levels of soil organic substance content (9.5-11.5 %), (3) alkaline indicators of the soil solution (pHH2O – 8.08-8.92, pHKCl – 7.42-8.23), (4) low levels of cation exchange capacity (6.34-8.47 mMol /100 g). By results of correlation calculations, among the factors of soil formation time (duration of soil formation) and input of plant ash elements’ fall are characterized by the maximum number of statistically significant correlation coefficients and their numerical values. In terms of chemical composition of the technosol, the values of organic matter content and exchangeable acidity (pHKCl) were the most predictable soil formation factors. Generally physical / chemical characteristics of geological rocks (as parent material) and time were the two most important factors in determining the initial pedogenesis on devastated lands in the Kryvyi Rih Iron Mining & Metallurgical District (Ukraine).
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Sarin, N. K. Operating procedures - flame tests on rigid ducts used for mine ventilation. Natural Resources Canada/CMSS/Information Management, 1987. http://dx.doi.org/10.4095/331775.

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Flammability tests are carried out on a variety of flexible and rigid duct materials used for mine ventilation in order to evaluate their fire-resistance and their suitability in a mining environment. Several tests are available for this purpose, however, CEAL has been using CSA standard C22.2 No. 30 for at least 10 years as part of its program for certification of various mining products. An interim large scale gallery test has been introduced since July, 1985 in order to determine if better repeatability of test results can be obtained. The aim is to eliminate threats to health and safety resulting from the use of such products in the mines. Special attention has been given to the safety precautions and sequence of operations necessary while conducting tests. A standard test recording sheet and test layout diagrams are also presented.
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Werdon, M. B., e M. J. Blessington. Analyses of historic U.S. Bureau of Mines samples for geochemical trace-element and rare-earth-element data from the Circle mining district, western Crazy Mountains, and the Lime Peak area of the White Mountains, Circle Quadrangle, east-central Alaska. Alaska Division of Geological & Geophysical Surveys, junho de 2014. http://dx.doi.org/10.14509/27292.

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