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Relevant bibliographies by topics / Lead miners

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Academic literature on the topic 'Lead miners'

Author: Grafiati

Published: 4 June 2021

Last updated: 27 February 2023

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Journal articles on the topic "Lead miners"

1

Masjedi, Mohammad-Reza, Nahid Estineh, Moslem Bahadori, Mohammad Alavi, and Nancy L. Sprince. "Pulmonary Complications in Lead Miners." Chest 96, no. 1 (July 1989): 18–21. http://dx.doi.org/10.1378/chest.96.1.18.

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Ford, Trevor D., and Jim Rieuwerts. "Lead miners' soughs in Derbyshire." Geology Today 23, no. 2 (March 2007): 57–62. http://dx.doi.org/10.1111/j.1365-2451.2007.00604.x.

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Lambert, Kathryn T. A., and Paul G. McDonald. "How dependent are bell miners (Manorina melanophrys) on lantana (Lantana camara) as part of their habitat?" Wildlife Research 44, no. 8 (2017): 613. http://dx.doi.org/10.1071/wr17024.

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Context The bell miner (Manorina melanophrys) is thought to prefer the dense vegetation of Lantana camara, a dominating noxious weed, to nest in compared with native plant communities in northern New South Wales and south-eastern Queensland. As miner numbers seemed to have increased with increased availability of nesting habitat, larger numbers of despotic bell miners territorially reduce native avian diversity. The resultant high insect numbers in the canopy lead to dieback. It is unknown to what extent the native bell miner relies on lantana for nesting sites and if restoration through removal of lantana, resulting in an influx of native species, changes food availability and thus foraging behaviours. Aims The objective of our study was to understand the relationship between the presence of lantana and bell miners by determining: (1) bell miner behaviours in response to different understorey types; (2) bell miner nesting choices on a broad scale; (3) nesting preference for each site on a broad scale; and (4) whether nest height is related to fledging success. Methods Fifty individual bell miners were observed within five colonies (four containing comparison quadrats of treated and intact lantana as part of a restoration study and one containing water vine for comparison as a pristine site; n=10 per treatment) during four seasons. Five bouts of gleaning, probing or sallying were observed, noting height and plant species. Nest sites were examined over a large area, noting plant species present, nest height and plant height. Key results Bell miners used gleaning as the primary foraging tactic primarily in eucalypts (93%; n=600, mean=13.6m±0.29, s.e.). Bell miners generally nested in understorey vegetation (83.5% of nests observed) at a mean height of 2.7m in 37 different plant species, native and exotic. Nest height did not influence the probability of broods fledging. Conclusions Bell miners exhibit considerable nest plasticity, and the removal of lantana as an oft-used nesting habitat is unlikely to lead to relocation by this species. Implications Instead, future research needs to focus on canopy insect assemblages in bell miner colonies, a potentially more important determinant of bell miner distribution.

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Papastefanaki, Leda. "The Institutional Framework for Work in the Mines of Greece: Occupational Health and Safety and the case of Lead Poisoning (1861-1940)." Áreas. Revista Internacional de Ciencias Sociales, no. 43 (December 31, 2022): 35–52. http://dx.doi.org/10.6018/areas.492421.

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The paper investigates the historical formation of the institutional framework for work in the mines, regarding occupational health and safety. In a second level, the article focusses on the medical discourse in Greece about the specific occupational disease of lead poisoning and the role played by the state, mining companies and doctors in the recognition of the disease. In the formation of this framework and the regulations gender has played an important role. The definition of lead poisoning as an occupational disease given to the miners by specialist doctors was a political issue, which was determined in historical terms. Doctors used their scientific knowledge not only as a tool for the political economy of health, but also as a mean to combat the social question by reforms and total intervention in everyday life, work and leisure of the miners. In the case of the recognition of lead poisoning, a cultural confrontation which characterized the conflict between the educated middle class and the working class in Greece, since the end of 19th century, is apparent. The sources used are mainly the legislation, state reports by the Inspectorate of Mines and medical reports. El artículo investiga la formación histórica del marco institucional para el trabajo en las minas en Grecia, con respecto a la salud y seguridad ocupacional. En un segundo nivel, el artículo se centra en el discurso médico en Grecia sobre la enfermedad profesional específica del envenenamiento por plomo y el papel jugado por el Estado, las empresas mineras y los médicos en el reconocimiento de la enfermedad.La definición de la intoxicación por plomo como enfermedad profesional dada a los mineros por médicos especialistas fue una cuestión política, que se determinó en términos históricos. Los médicos utilizaron su conocimiento científico no sólo como herramienta para la economía política de la salud, sino también como medio para combatir la cuestión social mediante reformas e intervención total en la vida cotidiana, el trabajo y el ocio de los mineros. En el caso del reconocimiento del envenenamiento por plomo, se evidencia una confrontación cultural que caracterizó el conflicto entre la clase media culta y la clase obrera en Grecia, desde finales del siglo XIX.Las fuentes utilizadas son principalmente la legislación, informes estatales de la Inspección de Minas e informes médicos.

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Dare, Amanda J., Paul G. McDonald, and Michael F. Clarke. "The ecological context and consequences of colonisation of a site by bell miners (Manorina melanophrys)." Wildlife Research 34, no. 8 (2007): 616. http://dx.doi.org/10.1071/wr07015.

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Bell miner (Manorina melanophrys) colonies are closely associated with decreased avian abundance and diversity and an apparently associated increase in psyllid abundance. However, a causative link between the presence of bell miners and increased psyllid abundance has yet to be established. We took advantage of the movement of bell miners into two new areas to investigate the ecological consequences of bell miner occupation on both avian and psyllid abundance. We monitored the number of bell miners and other avian species, using area searches, and psyllid abundance by monthly counts of lerp on leaves. Bell miner presence alone had limited effect on either bird diversity or abundance. However, when miners were also giving their distinctive ‘tink’ vocalisation, a significant decrease in avian abundance and diversity was observed. This evidence supports the hypothesis that ‘tink’ vocalisations are used by interspecific competitors to detect bell miner colonies. At the time of initial occupation, new sites did not have significantly elevated levels of psyllids compared with surrounding areas unoccupied by bell miners. Six months later one of the two newly occupied sites had significantly more Cardiaspina spp. than either the long-established colony or an unoccupied control site. In contrast, infestations of Glycaspis spp. remained significantly lower at both new sites when compared with the long-established colony, but equivalent to unoccupied areas. Given this, we conclude that bell miner occupation does not necessarily lead to an increase in psyllid abundance, characteristic of tree dieback in some colonies, and that a causative link between bell miner presence and declining tree health remains to be demonstrated.

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Otoijamun, Itohan, Moses Kigozi, Sikiru Ottan Abdulraman, Adelana Rasak Adetunji, and Azikiwe Peter Onwualu. "Fostering the Sustainability of Artisanal and Small-Scale Mining (ASM) of Barite in Nasarawa State, Nigeria." Sustainability 13, no. 11 (May 24, 2021): 5917. http://dx.doi.org/10.3390/su13115917.

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The exploration and mining of Nigerian barite are primarily by artisanal and small-scale miners (ASM) whose operations are characterized by poor productivity. As a result, the quantity and quality of barites produced do not satisfy the nation’s oil sector demands and other industries that require the mineral. This situation leads to massive importation of the mineral with negative impact on the country’s drive toward increasing the contribution of solid minerals to the gross domestic product (GDP). This study reviews the existing policies and government interventions on ASM of Nigerian barite; evaluates the operations of ASM through a survey of mines in Nasarawa state, Nigeria; identifies factors that affect sustainability of the sector and proffers solutions to foster sustainability of ASM of barite in the region. The study adopted the 4Is optimization technique (Information gathering, Interpretation, Implication, and Implementation) through personal interactions with the stakeholders at the barite mining sites, and government agencies, regarding policies and interventions specific to ASM of barite. Challenges identified include: weak implementation and enforcement of mining laws; inadequate support from government and development partners; poor access to mining equipment and technology; poor infrastructure (access road, water, electricity); poor pricing of products (marketing challenges); poor remuneration of mine workers; poor mining skills; inadequate formal education; limited awareness on environmental health and safety hazards; fragility and conflict; insufficient information and data on mines and miners; security issues; lack of access to finance; lack of formalization of operations and poor legal framework for operations. The strategies suggested for fostering the sustainability of ASM of barites include: enhanced policy and legislation formulation and implementation, strengthening of institutions, formalization of ASM operations, training of miners, awareness campaign, improvement in environmental and safety of operations, empowerment and support by government and development partners for individual miners and processors and organized groups within the sector (such as Miners Association of Nigeria, Association of Miner and Processors of Barite, AMAPOB). Implementation of these strategies will lead to sustainable operations of the sector and hence improved rural livelihoods, stimulation of entrepreneurship in an environmentally responsible manner, and improvement in the contribution of the mineral sector to the nation’s gross domestic product (GDP), and hence national development.

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Schwarz-Schilling, Caspar, Sheng-Nan Li, and Claudio J. Tessone. "Stochastic Modelling of Selfish Mining in Proof-of-Work Protocols." Journal of Cybersecurity and Privacy 2, no. 2 (May 20, 2022): 292–310. http://dx.doi.org/10.3390/jcp2020016.

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In blockchain-based systems whose consensus mechanisms resort to Proof-of-Work (PoW), it is expected that a miner’s share of total block revenue is proportional to their share of hashing power with respect to the rest of the network. The protocol relies on the immediate broadcast of blocks by miners, to earn precedence in peers’ local blockchains. However, a deviation from this strategy named selfish mining (SM), may lead miners to earn more than their “fair share”. In this paper, we introduce an agent-based model to simulate the dynamics of SM behaviour by a single miner as well as mining pools to understand the influence of (a) mining power distribution, (b) overlay network topology, (c) positioning of the selfish nodes within the peer to peer network. Our minimalistic model allows us to find that in high levels of latency, SM is always a more profitable strategy; our results are very robust to different network topologies and mining nodes’ centrality in the network. Moreover, the power-law distribution of the miners’ hashing power can make it harder for a selfish miner to be profitable. In addition, we analyze the effect of SM on system global efficiency and fairness. Our analysis confirms that SM is always more profitable for hashing powers representing more than one-third of the total computing power. Further, it also confirms that SM behaviour could cause a statistically significant high probability of continuously mined blocks opening the door for empirical verification of the phenomenon.

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Gold, Gerald L. "Lead Mining and the Survival and Demise of French in Rural Missouri." Cahiers de géographie du Québec 23, no. 59 (April 12, 2005): 331–42. http://dx.doi.org/10.7202/021441ar.

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Old Mines is just about all that remains of French Missouri, a remnant of eighteenth century French and Spanish colonial ambitions. Rich lead deposits attracted the early French to what is now Washington county. The demand for hand dug lead (tuf) and later barite permitted French miners to continue their mode of production with its linguistic and cultural complementarities until World War II. Since, the Missouri French have been gradually disappearing. Yet even at moments of virtual cultural and linguistic collapse, voices are raised in an effort to rectify the situation.

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Seydi, Enayatollah, Mahshid Soltani, Maral Ramazani, Mohammad Hadi Zarei, and Jalal Pourahmad. "Occupational exposure in lead and zinc mines induces oxidative stress in miners lymphocytes: Role of mitochondrial/lysosomal damage." Main Group Metal Chemistry 43, no. 1 (October 7, 2020): 154–63. http://dx.doi.org/10.1515/mgmc-2020-0019.

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AbstractThe purpose of this research was to determine mitochondrial and lysosomal damage and oxidative stress status in blood lymphocytes of lead-zinc miners. This research was performed in 10 mine workers who have been in contact with lead and zinc in comparison to a control group containing 10 healthy volunteers. Lymphocytes were isolated from peripheral blood using the Ficoll standard method and then mitochondrial and lysosomal damage and oxidative stress were evaluated. The level of reactive oxygen species (ROS), collapse in the mitochondrial membrane potential (MMP) collapse, and glutathione disulfide (GSSG) content, and lysosomal damage in miners were higher than the control group. Also, viability and glutathione (GSH) content were decreased. The lymphocytes of workers of a lead-zinc mine are more susceptible to oxidative stress, mitochondrial and lysosomal damage. The proper use of safety equipment can reduce the risk of toxic agents and their subsequent hazards for mine workers.

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Cocco, P. L., P. Carta, S. Belli, G. F. Picchiri, and M. V. Flore. "Mortality of Sardinian lead and zinc miners: 1960-88." Occupational and Environmental Medicine 51, no. 10 (October 1, 1994): 674–82. http://dx.doi.org/10.1136/oem.51.10.674.

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Dissertations / Theses on the topic "Lead miners"

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Faust, Robert Edward. "Lead belt progressives : the struggle for social and environmental reform in Missouri mining communities /." free to MU campus, to others for purchase, 2003. http://wwwlib.umi.com/cr/mo/fullcit?p3115543.

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Cornelissen, Tatiana. "Herbivory by leaf-miners on Florida scrub oaks." [Tampa, Fla] : University of South Florida, 2006. http://purl.fcla.edu/usf/dc/et/SFE0001486.

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Perry, Stuart John. "Community dynamics of leaf-miners annd their parasitoids on Alder." Thesis, Imperial College London, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.321761.

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Cheah, Carole A. S. J. "Biological control of the chrysanthemum leaf-miner." Thesis, University of Cambridge, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.254067.

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Krizanich, Gary W. "An investigation of lead and other metal contaminants in the sediments of Clearwater Lake, Missouri." Diss., Rolla, Mo. : University of Missouri-Rolla, 2007. http://scholarsmine.mst.edu/thesis/pdf/krizanich_dis_09007dcc80601ec2.pdf.

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Thesis (Ph. D.)--University of Missouri--Rolla, 2007.
Vita. The entire thesis text is included in file. Title from title screen of thesis/dissertation PDF file (viewed July 31, 2008) Includes bibliographical references (p. 185-197).

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Beak, Douglas Gerald. "Lead and arsenic speciation and bioaccessibility following sorption on oxide mineral surfaces." Columbus, Ohio : Ohio State University, 2005. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1131933545.

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Cotter-Howells, Jane. "Lead minerals in soils contaminated by mine-waste : implications for human health." Thesis, Imperial College London, 1991. http://hdl.handle.net/10044/1/8913.

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Vazquez-Ortega, Angelica. "Mobilization of Lead and Zinc in Acid Sulfate Mine Tailings." Thesis, The University of Arizona, 2008. http://hdl.handle.net/10150/193339.

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In this thesis, column experiments were conducted in order to determine the effect of irrigation with local groundwater on mobilization of lead and zinc in 50 years old sulfate-acid mine tailings. In addition, the influence of soluble oxalic acid, a common rhizosphere organic acid, was assessed by varying its concentration across an environmentally relevant range. In general, metal contaminant dissolution was not affected by the presence of oxalic acid. In both tailings, Zn mobilization was higher than Pb suggesting the presence of more kinetically labile Zn phases, regardless of the treatment used. Lead mobilization was also low because effluent solutions were near to equilibrium conditions with respect to gypsum, preventing Pb dissolution from Pb-sulfate minerals. Geochemical modeling also indicated that lead release was controlled by anglesite and plumbojarosite dissolution. Zinc release appears to be controlled by Zn-talc and goslarite.

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Ben, Husin Taha Omar Ali. "Biological control of tomato leaf miner Tuta absoluta using entomopathogenic nematodes." Thesis, University of Newcastle upon Tyne, 2017. http://hdl.handle.net/10443/3845.

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Increasing resistance to chemical insecticides in field populations of tomato leafminer, Tuta absoluta, has motivated research on alternative control measures. Biological control with entomopathogenic nematodes (EPNs) can be an alternative, particularly against larval instars. In foliar application, EPNs encounter many factors that affect their survival and efficacy adversely. This thesis has investigated: (1) the efficacy of some commercial EPNs against different stages of Tuta absoluta (larvae, pupae and adults) in Petri dish, leaf and soil bioassays, (2) factors affecting EPNs on tomato leaves and (3) impact of some organic and non-organic adjuvants on efficacy of EPNs at 75 ± 10 % and 45 ± 10 % RH. Results showed high adult and larval mortality of Tuta absoluta using Steinernema feltiae, Steinernema carpocapsae and Heterorhabditis bacteriophora in dish and leaf bioassays in optimum conditions (> 90 % RH). S. feltiae was the most virulent species, followed by S. carpocapsae then H. bacteriophora. Larval susceptibility increased throughout larval development. Pupae in contrast were less susceptible to nematode infection. In soil, S. feltiae and S. carpocapsae were significantly more virulent than H. bacteriophora against fourth larval instar when they drop to pupate in the soil and against adults when they are emerging from pupae. All factors studied (relative humidity, temperature, repeat application, method of application and time for EPNs to enter a leaf) affected the efficacy of EPNs to some extent, but relative humidity (RH) was the most important factor. EPNs’ efficacy and survival decreased as RH declined. The addition of Barricade® II and xanthan gum to aqueous suspensions of S. feltiae and S. carpocapsae resulted in increasing their efficacy and survival. What is more, they reduced the loss of nematodes into the soil in run-off by depositing them on the leaf and they assured even distribution of nematodes in the spray tank by preventing them from settling down. Moreover, Barricade® II (1.5 %) reduced the time required by S. feltiae and S. carpocapsae to enter a leaf. Barricade® II is the candidate adjuvant to be used with S. feltiae for foliar application against T. absoluta.

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MOREIRA, SANDRA R. D. "Determinacao de sup210Pb em aguas minerais da cidade de Aguas da Prata." reponame:Repositório Institucional do IPEN, 1993. http://repositorio.ipen.br:8080/xmlui/handle/123456789/10348.

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Dissertacao (Mestrado)
IPEN/D
Instituto de Pesquisas Energeticas e Nucleares - IPEN/CNEN-SP

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Books on the topic "Lead miners"

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Murphy, Samuel. Grey gold: Men, mining & metallurgy at the Greenside Lead Mine in Cumbria, England 1825 to 1962. Tanworth-in-Arden: Moiety, 1996.

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Lands & lead-miners: A history of Brassington, in Derbyshire. Chesterfield: R. Slack, 1991.

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Neuburg, Claudia. Alltag und Lebensverhältnisse von Arbeitern im Mechernicher Bleierzbergbau. Münster: Lit, 1995.

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Bagenal, Timothy Bracegirdle. Miners and farmers: The agricultural holdings of the lead miners at Heights, Gunnerside, in North Yorkshire. Keighley: Northern Mine Research Society, 1999.

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River of mines, fortunes, and loves. Shelburne, Ont: Battered Silicon Dispatch Box, 2000.

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Mahurin, Shirley J. Hard rock lead and zinc miners obits and more, with family and friends: Picher, Oklahoma area and the Tri-State District with articles of interest. [Sand Springs, Okla.?]: Maloy Enterprises, 2002.

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Manuel José Domínguez de la Fuente. Leal informe político-legal: Observaciones sobre la maniobra de las minas hechas en el Real de Guanajuato en 1774. Guanajuato: Ediciones la Rana, 1999.

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Federal Zinc and Lead Company. Quelques faits sur les mines Federal. Montréal: Federal Zinc and Lead Co., 1994.

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Tyson, L. O. The Arkengarthdale mines. Keighley, U.K: Northern Mine Research Society, 1995.

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Silver, lead & hell: The story of Sandon. Sandon, B.C: Prospectors' Pick Publishing, 1992.

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Book chapters on the topic "Lead miners"

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Miller, Laura T., Lionel Stange, Charles MacVean, Jorge R. Rey, J. H. Frank, R. F. Mizell, John B. Heppner, et al. "Leaf Blotch Miners." In Encyclopedia of Entomology, 2150. Dordrecht: Springer Netherlands, 2008. http://dx.doi.org/10.1007/978-1-4020-6359-6_1981.

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Gratwick, Marion. "Leaf miners of chrysanthemum." In Crop Pests in the UK, 268–73. Dordrecht: Springer Netherlands, 1992. http://dx.doi.org/10.1007/978-94-011-1490-5_54.

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Crowson, Phillip. "Lead." In Minerals Handbook 1992–93, 130–38. London: Palgrave Macmillan UK, 1992. http://dx.doi.org/10.1007/978-1-349-12564-7_21.

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Crowson, Phillip. "Lead." In Minerals Handbook 1994–95, 140–48. London: Palgrave Macmillan UK, 1994. http://dx.doi.org/10.1007/978-1-349-13431-1_23.

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Crowson, Phillip. "Lead." In Minerals Handbook 1996–97, 195–208. London: Palgrave Macmillan UK, 1996. http://dx.doi.org/10.1007/978-1-349-13793-0_24.

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Gratwick, Marion. "Beet leaf miner." In Crop Pests in the UK, 233–36. Dordrecht: Springer Netherlands, 1992. http://dx.doi.org/10.1007/978-94-011-1490-5_47.

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Whisonant, Robert C. "The Lead Mines Under Attack." In Arming the Confederacy, 75–85. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-14508-2_7.

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Miller, Laura T., Lionel Stange, Charles MacVean, Jorge R. Rey, J. H. Frank, R. F. Mizell, John B. Heppner, et al. "Leaf-Miner Flies (Diptera: Agromyzidae)." In Encyclopedia of Entomology, 2163–69. Dordrecht: Springer Netherlands, 2008. http://dx.doi.org/10.1007/978-1-4020-6359-6_1989.

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Liu, A., M. E. Reed, R. Close, and L. Thompson. "Lead Plant Transformations." In The Minerals, Metals & Materials Series, 165–72. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-37070-1_13.

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Sanz, Joaquim, Oriol Tomasa, Nor Sidki-Rius, and Nor Sidki-Rius. "Lead (Pb) [Z = 82]." In Elements and Mineral Resources, 119–21. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-85889-6_29.

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Conference papers on the topic "Lead miners"

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Mijakoski, Dragan, Jovanka Karadzinska-Bislimovska, Sasho Stoleski, Jordan Minov, Dragana Bislimovska, and Aneta Atanasovska. "Respiratory symptoms, lung function changes, and COPD in lead-zinc miners." In ERS International Congress 2019 abstracts. European Respiratory Society, 2019. http://dx.doi.org/10.1183/13993003.congress-2019.pa2825.

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Shamusideen, Kadiri, and Sels Dakwak. "582 Health and safety training on lead exposure for artisanal and small-scale gold miners in zamfara state, nigeria." In 32nd Triennial Congress of the International Commission on Occupational Health (ICOH), Dublin, Ireland, 29th April to 4th May 2018. BMJ Publishing Group Ltd, 2018. http://dx.doi.org/10.1136/oemed-2018-icohabstracts.713.

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Mbonane, Thokozani Patrick, Angela Mathee, André Swart, and Nisha Naicker. "High Blood Lead Levels and Perceived Societal and Health Issues Amongst Juvenile Illegal Miners: A Call for Multisectoral Action." In The 2nd International Electronic Conference on Healthcare. Basel Switzerland: MDPI, 2022. http://dx.doi.org/10.3390/iech2022-12466.

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Sanda, M. A., J. Johansson, and B. Johansson. "Miners' tacit knowledge: A unique resource for developing human-oriented lean mining culture in deep mines." In 2011 IEEE MTT-S International Microwave Workshop Series on Innovative Wireless Power Transmission: Technologies, Systems, and Applications (IMWS 2011). IEEE, 2011. http://dx.doi.org/10.1109/imws.2011.6114970.

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Sanda, M. A., J. Johansson, and B. Johansson. "Miners' tacit knowledge: A unique resource for developing human-oriented lean mining culture in deep mines." In 2011 IEEE International Conference on Industrial Engineering and Engineering Management (IEEM). IEEE, 2011. http://dx.doi.org/10.1109/ieem.2011.6117947.

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Muntz, Alexa L., Oluyinka Oyewumi, and Mark A. Evans. "ENVIRONMENTAL IMPACT ASSESSMENT OF LEAD LEGACY MINES." In GSA 2020 Connects Online. Geological Society of America, 2020. http://dx.doi.org/10.1130/abs/2020am-355260.

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Fiaboe, Komi. "Chemical ecology of leaf miners in east Africa." In 2016 International Congress of Entomology. Entomological Society of America, 2016. http://dx.doi.org/10.1603/ice.2016.94384.

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Nakajima, Yasuharu, Joji Yamamoto, Tomoko Takahashi, Blair Thornton, Yuta Yamabe, Gjergj Dodbiba, and Toyohisa Fujita. "Development of Elemental Technologies for Seafloor Mineral Processing of Seafloor Massive Sulfides." In ASME 2019 38th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/omae2019-96040.

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Abstract Seafloor Massive Sulfides have been expected to be future mineral resources. The grade of valuable metallic elements in ores of Seafloor Massive Sulfides is usually small percentage. If valuable minerals can be extracted from the ores on deep seafloor, the total mining cost can be reduced significantly. The authors proposed Seafloor Mineral Processing, where ores are to be ground into fine particles and separated into concentrates and tailings on seafloor. The Seafloor Mineral Processing system consists of processing units for unit operations such as grinding and separation. To investigate the applicability of flotation, which is a method to separate ore particles by using the difference in wettability of minerals, to the separation unit, measurements of contact angles of sulfide minerals at high pressures were carried out. The results suggested that the contact angles of the minerals would have relationships with pressure in depending on the kind of minerals and solutions. In addition, applying Laser-Induced breakdown Spectroscopy (LIBS), an optical method for elemental analysis, to measurement of metal grade of ore particles handled as slurry in the processing units was also investigated. Signals assigned to copper, zinc, and lead were successfully detected in the spectra obtained from ore particles in slurry flow.

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Göktepe, F., F. Pooley, and K. Wiliiams. "Characterisation and beneficiation studies for Balya lead-zinc mine wastes." In The 8th International Mineral Processing Symposium. Taylor & Francis Group, 6000 Broken Sound Parkway NW, Suite 300, Boca Raton, FL 33487-2742: CRC Press, 2017. http://dx.doi.org/10.4324/9780203747117-130.

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Nakajima, Yasuharu, Joji Yamamoto, Shigeo Kanada, Sotaro Masanobu, Ichihiko Takahashi, Jun Sadaki, Ryosuke Abe, Katsunori Okaya, Seiji Matsuo, and Toyohisa Fujita. "Study on Seafloor Mineral Processing for Mining of Seafloor Massive Sulfides." In ASME 2012 31st International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/omae2012-83354.

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Seafloor Massive Sulfides (SMSs), which were formed by deposition of precipitates from hydrothermal fluids vented from seafloor, has been expected as one of unconventional mineral resources on deep seafloors in the oceans. The authors have proposed the concept of seafloor mineral processing for SMS mining, where valuable minerals contained in SMS ores are separated on seafloor while gangue minerals are disposed on seafloor in appropriate ways. To confirm the applicability of column flotation, which is one of conventional mineral processing methods, to seafloor mineral processing, the authors carried out experiments simulating column flotation under the pressure conditions corresponding to the water depths down to 1000m in maximum using ore samples containing copper, iron, zinc and lead. In the experiments, formation of fine bubbles suitable to flotation and overflow of froth layer were observed at high pressures. The contents of copper and zinc in the concentrates recovered in the experiments at 1MPa were higher than those in the feed ores while the contents of silicon and calcium in the concentrates were lower than those in the feed ores. These results suggest that column flotation would be applicable to seafloor mineral processing.

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Reports on the topic "Lead miners"

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Guilmette, R. A., G. R. Laurer, W. E. Lambert, and F. D. Gilliland. In vivo measurements of lead-210 for assessing cumulative radon exposure in uranium miners. Office of Scientific and Technical Information (OSTI), December 1995. http://dx.doi.org/10.2172/381370.

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Dukarski, Jennifer. Unsettled Legal Issues Facing Data in Autonomous, Connected, Electric, and Shared Vehicles. SAE International, September 2021. http://dx.doi.org/10.4271/epr2021019.

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Modern automobiles collect around 25 gigabytes of data per hour and autonomous vehicles are expected to generate more than 100 times that number. In comparison, the Apollo Guidance Computer assisting in the moon launches had only a 32-kilobtye hard disk. Without question, the breadth of in-vehicle data has opened new possibilities and challenges. The potential for accessing this data has led many entrepreneurs to claim that data is more valuable than even the vehicle itself. These intrepid data-miners seek to explore business opportunities in predictive maintenance, pay-as-you-drive features, and infrastructure services. Yet, the use of data comes with inherent challenges: accessibility, ownership, security, and privacy. Unsettled Legal Issues Facing Data in Autonomous, Connected, Electric, and Shared Vehicles examines some of the pressing questions on the minds of both industry and consumers. Who owns the data and how can it be used? What are the regulatory regimes that impact vehicular data use? Is the US close to harmonizing with other nations in the automotive data privacy? And will the risks of hackers lead to the “zombie car apocalypse” or to another avenue for ransomware? This report explores a number of these legal challenges and the unsettled aspects that arise in the world of automotive data

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Huston, D. L., B. Eglington, S. Pehrsson, and S. Piercy. Global database of zinc-lead-bearing mineral deposits. Geoscience Australia, 2022. http://dx.doi.org/10.11636/record.2022.010.

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Moses, Carl O., and Eugene S. Ilton. Surface and solution-interface geochemistry of lead sulfide and lead selenide minerals. Final report, 1 May 1998. Office of Scientific and Technical Information (OSTI), May 1998. http://dx.doi.org/10.2172/763926.

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Seybold, Patricia. What's on the Minds of Lead Customer-Centric Executives? Boston, MA: Patricia Seybold Group, May 2006. http://dx.doi.org/10.1571/psgp5-25-06cc.

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Harris, D. C., and D. F. Sangster. Minor element content of sphalerite, Nanisivik lead-ainc deposit, NWT. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1992. http://dx.doi.org/10.4095/133338.

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Cherniak, D. J., W. A. Lanford, and F. J. Ryerson. The use of ion beam techniques to characterize lead diffusion in minerals. Office of Scientific and Technical Information (OSTI), September 1990. http://dx.doi.org/10.2172/6063129.

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de Caritat, Patrice, Brent McInnes, and Stephen Rowins. Towards a heavy mineral map of the Australian continent: a feasibility study. Geoscience Australia, 2020. http://dx.doi.org/10.11636/record.2020.031.

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Heavy minerals (HMs) are minerals with a specific gravity greater than 2.9 g/cm3. They are commonly highly resistant to physical and chemical weathering, and therefore persist in sediments as lasting indicators of the (former) presence of the rocks they formed in. The presence/absence of certain HMs, their associations with other HMs, their concentration levels, and the geochemical patterns they form in maps or 3D models can be indicative of geological processes that contributed to their formation. Furthermore trace element and isotopic analyses of HMs have been used to vector to mineralisation or constrain timing of geological processes. The positive role of HMs in mineral exploration is well established in other countries, but comparatively little understood in Australia. Here we present the results of a pilot project that was designed to establish, test and assess a workflow to produce a HM map (or atlas of maps) and dataset for Australia. This would represent a critical step in the ability to detect anomalous HM patterns as it would establish the background HM characteristics (i.e., unrelated to mineralisation). Further the extremely rich dataset produced would be a valuable input into any future machine learning/big data-based prospectivity analysis. The pilot project consisted in selecting ten sites from the National Geochemical Survey of Australia (NGSA) and separating and analysing the HM contents from the 75-430 µm grain-size fraction of the top (0-10 cm depth) sediment samples. A workflow was established and tested based on the density separation of the HM-rich phase by combining a shake table and the use of dense liquids. The automated mineralogy quantification was performed on a TESCAN® Integrated Mineral Analyser (TIMA) that identified and mapped thousands of grains in a matter of minutes for each sample. The results indicated that: (1) the NGSA samples are appropriate for HM analysis; (2) over 40 HMs were effectively identified and quantified using TIMA automated quantitative mineralogy; (3) the resultant HMs’ mineralogy is consistent with the samples’ bulk geochemistry and regional geological setting; and (4) the HM makeup of the NGSA samples varied across the country, as shown by the mineral mounts and preliminary maps. Based on these observations, HM mapping of the continent using NGSA samples will likely result in coherent and interpretable geological patterns relating to bedrock lithology, metamorphic grade, degree of alteration and mineralisation. It could assist in geological investigations especially where outcrop is minimal, challenging to correctly attribute due to extensive weathering, or simply difficult to access. It is believed that a continental-scale HM atlas for Australia could assist in derisking mineral exploration and lead to investment, e.g., via tenement uptake, exploration, discovery and ultimately exploitation. As some HMs are hosts for technology critical elements such as rare earth elements, their systematic and internally consistent quantification and mapping could lead to resource discovery essential for a more sustainable, lower-carbon economy.

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Harrison, J. C., B. M. Saumur, and D. R. Skipton. Mineral and carving-stone resources of Baffin Island. Natural Resources Canada/CMSS/Information Management, 2022. http://dx.doi.org/10.4095/321858.

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Mineral resources of Baffin Island include iron (Mary River), diamonds, carbonate-hosted zinc and lead (Nanisivik), nickel, copper, platinum group elements, uranium, thorium, gemstones (sapphire, spinel, lapis lazuli), carving stone, and coal. Iron deposits include the Mary River No. 1 to 4 deposits of northern Baffin Island, which came into production in 2015 and contain 586 Mt grading 66% Fe. The Mesoproterozoic Borden Basin hosts the Nanisivik deposit, mined between 1976 and 2002; this is a Mississippi Valley-type deposit and contains 9.0% Zn, 0.7% Pb, and 41 ppm Ag. Diamond-rich kimberlite occurs as sheets and small pipes at Chidliak on Hall Peninsula; largest by area is the CH-1 (6 ha) pipe. At least 32 carving-stone localities are known; 7 communities on Baffin Island have good access to quarried material. Coal occurs in the Cretaceous-Paleogene Eclipse Trough of Bylot and northwestern Baffin islands. Exposures near Pond Inlet have been excavated for local use.

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Jungling, T. L., D. R. Rauth, and D. Goldberg. Evaluation of replacement thread lubricants for red lead and graphite in mineral oil. Office of Scientific and Technical Information (OSTI), April 1998. http://dx.doi.org/10.2172/607497.

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