Journal articles: 'Zinc deposits'

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Lien, Nguyen Thi, and Nguyen Van Pho. "Formation of secondary nonsulfide zinc ore in Cho Dien Pb-Zn deposits." VIETNAM JOURNAL OF EARTH SCIENCES 40, no. 3 (June 4, 2018): 228–39. http://dx.doi.org/10.15625/0866-7187/40/3/12615.

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In Viet Nam, non-sulfide zinc ore in the Cho Dien deposit has been exploited for a long time. Up to the present, zinc ore remains the major exploited ore in Cho Dien. There are numerous studies of Pb-Zn ore in Cho Dien. However, most of the studies have dedicated only to description of mineralogical and chemical composition of Pb-Zn ore. There has been no publication on this non-sulfide zinc ore. Based on the mineralogical studies, the content of Pb and Zn in groundwater determined by reflective microscope, SEM, EPMA and ICP-MS methods, the study explained the formation of secondary non-sulfide zinc ore in the Cho Dien deposit. Strong weathering process makes the upper part of ore bodies completely oxidized. Difference in geochemical behavior of lead (Pb) and zinc (Zn) in the oxidation process of Pb-Zn ore is the reason to form non-sulfide zinc ore in the Cho Dien deposit. Oxidation of primary Pb-Zn ore is mainly sphalerite, pyrite, galena minerals which creates a low pH environment and transforms of zinc from immobile (sphalerite - ZnS) to mobile (Zn2+) and retained in solution under acid pH conditions whereas lead has the tendency to form soluble minerals (anglesite, cerussite). The acid neutralization actions of the surrounding rocks make zinc precipitate, to form secondary non-sulfide zinc minerals.ReferencesAndreas Nuspl, 2009. Genesis of nonsulfide zinc deposits and their future utilization (www.geo.tu-frei berg.de/oberseminar/OS_09/Andreas_Nuspl.pdf.Boland M.B., et al., 2003. The Shaimerden supergene zinc deposit, Kazakhstan: Economic Geology, 98(4), 787-795.Chau N.D., Jadwiga P., Adam P., D.V. Hao, L.K. Phon, J. Paweł, 2017. General characteristics of rare earth and radioactive elements in Dong Pao deposit, Lai Chau, Vietnam, Vietnam J. Earth Sci., 39(1), 14-26.Dao Thai Bac, 2012. Characteristics and distribution law of lead-zinc metallogenic fomations in Viet Bac region. Doctoral thesis.Heyl A.V., Bozion C.N., 1962. Oxidized zinc deposits of the United States, Part 1. General Geology: U.S. Geological Survey Bulletin 1135-A.Hoa T.T., et al., 2010. By-products in lead-zinc and copper ores of Northeast Vietnam. J. Sci. of the Earth, 289-298 (in Vietnamese).Hoang Minh Thao, Tran Thi Hien, Dao Duy Anh, Pham Thi Nga, 2017. Mineralogical characteristics of graphite ore from Bao Ha deposit, Lao Cai Province and proposing a wise use. Vietnam J. Earth Sci., 39(4), 324-336.Jurjovec J., et al., 2002. Acid neutralization mechanisms and metal release in mine tailings: A laboratory column experiment: Geochimica et Cosmochimica Acta, 66, 1511-1523.Large D., 2001. The geology of non-sulphide zinc Deposits - an Overview: Erzmetall, 54(5), 264-276.Maria Boni, 2003. Nonsulfide Zinc Deposits: a new - (old) type of economic mineralization. Society for geology applied to mineral deposits (SGA) News, Number 15. https://www.e-sga.org/fileadmin/sga/newsletter/news15/art01.html.McPhail D.C., et al., 2003, The geochemistry and mobility of zinc in the regolith: in Roach, I.C., ed., Advances in Regolith, 287-291.Murray W. Hitzman, et al., 2003. Classification, genesis, and exploration guides for non-sulfide zinc deposits: Economic Geology, 98(4), 685-714.Nguyen V.P., 2013. Wet tropical wethering in Viet Nam. Natural Science and Technology Publisher.Nicola Mondillo, 2013. Supergene Nonsulfide Zinc-Lead Deposits: The Examples of Jabali (Yemen) and Yanque (Peru). Doctoral thesis.Nordstrom D.K., Alpers C.N., 1999. Geochemistry of acid mine waste. Review in Economic Geology, the environmental geochemistry of ore deposits/Eds. G.S.Plumlee, M.J. Logsdon. Part A: Processes, techniques, and health issues, 6A, 133-160.Reynolds N.A., et al., 2003. The Padaeng Supergene Nonsulfide Zinc Deposit, Mae Sod, Thailand. Economic Geology, 98(4), 773-785.Sangameshwar S.R., Barnes H.L., 1983. Supergene Processes in Zinc-Lead-Silver Sulfide Ores in Carbonates: Economic Geology, 78, 1379-1397.Stumm W., Morgan J.J., 1996. Aquatic Chemistry, Third Edition. John Wiley & Sons, New York, NY.Takahashi T., 1960. Supergene alteration of zinc and lead deposits in limestone: Economic Geology, 55, 1083-1115.Thornber M.R. and Taylor G.F., 1992. The mechanisms of sulphide oxidation and gossan formation, in: Butt, C.R.M., and Zeegers H., (Eds.)., Regolith exploration geochemistry in tropical and subtropical terrains, in Govett G.J.S., ed., Handbook of exploration geochemistry: Amsterdam, Elsevier, 4, 119-138.Tran Trong Hoa, 2005. Potential assessment of By- products in lead-zinc and copper deposits of Northeast Vietnam. Final report.Tran Tuan Anh, 2010. Studying accompanying component in the types of potential deposits of basic metals and precious - rare metals of north Viet Nam to improve the efficiency of mining and environmental protection. Final report. KC.08.24/06-10.Tran Tuan Anh, et al., 2011. Mineralogical and geochemical characteristics and forming conditions of lead - zinc deposits in Lo Gam structure, northern Vietnam. J. Sci. of the Earth, 33(3DB), 393-408 ( in Vietnamese).Vito Coppola et al., 2009. Nonsulfide zinc deposits in the Silesia - Cracow district, Southern Poland. Springer Link, 44, 559-580.Vito Coppola, et al., 2007. Non-sulfide zinc deposits in Upper Silesia, Southern Poland. Proceeding of the Ninth Biennial SGA Meeting, Dublin, 1401-1404.Williams P.A., 1990. Oxide zone geochemistry: Ellis Horwood Ltd., Chichester, UK, 286p.

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Stepien, Zbigniew, and Wojciech Krasodomski. "Effect of trace zinc amounts introduced in various chemical structures in diesel fuel on coke deposits of fuel injectors of a CI engine." International Journal of Engine Research 21, no. 5 (May 28, 2018): 755–65. http://dx.doi.org/10.1177/1468087418777175.

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The goal of the article was to carry out a comparative research on the propensity of a standard-class commercial diesel fuel, consistent with the requirements of the EN-590 standard, with zinc catalysts of various chemical structures introduced, to form deposits on the tips of fuel injectors of a compression ignition engine. Studies on structures of zinc carboxylic salts type dissolved in the fuel and dispersed zinc oxides/hydroxides type were planned. The influence of zinc dialkyldithiophosphates (ZDDP) on the deposit formation was not investigated because of their complex structure and inability to evaluate the additional impact of phosphates(V) on the deposit formation process. Studies of pre-prepared fuel samples without zinc and with various zinc contents of various origins, which may constitute trace impurities of diesel fuel, were carried out using a standardised engine test acc. to the general European CEC F-98-08 procedure, in which the amount of the engine power decrease was adopted as an evaluation criterion for the size of the deposits formed on the tips of fuel injectors. Also, an analysis of elemental composition of the coke deposits formed on the tips of fuel injectors of a Peugeot DW10B engine was carried out by the X-ray fluorescence method. In the results of the studies carried out, it was found that in the case of commercial diesel fuel used for the tests, none of the zinc compounds assumed as deposits precursors had a significant influence on the chemistry of the deposit formation process during combustion of the diesel fuel in the engine. The deposits being formed are characterised by practically the same chemical nature. However, differences were found in the case of amounts of deposits forming on the tips of the fuel injectors and their growth rate during the test.

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Hur, Do Haeng, Kyeong-Su Kim, Hee-Sang Shim, Jinsoo Choi, and Kyu Min Song. "Behavior of Zinc Incorporation into Fuel Deposits in Borated and Lithiated Water with Dissolved Zinc." Materials 13, no. 19 (September 28, 2020): 4317. http://dx.doi.org/10.3390/ma13194317.

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The objective of this study was to investigate the behavior of zinc incorporation into newly forming fuel deposits and pre-formed deposits in a simulated pressurized water reactor coolant including 1000 ppm of boron and 2 ppm of lithium at 328 °C. Zinc was incorporated into fuel deposits that were being newly nucleated and grown on nuclear fuel cladding tubes in a zinc-containing coolant. The zinc incorporation resulted in a decrease in the lattice constant of the deposits, which was attributed to the decrease in larger iron content and the corresponding incorporation of smaller zinc in the deposits. However, zinc incorporation was not found, even after the fuel deposits pre-formed before zinc addition were subsequently exposed to the 60 ppb of zinc coolant for 500 h.

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Narasimhamurthy, V., and L. H. Shivashankarappa. "Physico-Chemical Properties of Zn-Fe Alloy Deposits from an Acid Sulphate Bath Containing Triethanolamine." Journal of Advanced Chemical Sciences 6, no. 3 (December 15, 2020): 689–92. http://dx.doi.org/10.30799/jacs.226.20060301.

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The composition, properties, structure and morphology of electrodeposited Zn-Fe alloy deposits obtained from an acid sulphate bath containing triethanolamine have been investigated. A bath containing less zinc (20%) produced an alloy deposit with higher zinc content (80%), i.e. anomalous co-deposition process. The composition of alloy remained constant with pH of the plating bath and thickness of the alloy deposit. The cathodic current efficiency depends on plating variables. The shift in deposition potentials of Zn-Fe alloy is a chief cause in the co-deposition process to produce alloy of varying composition. Phase structure determination by X-ray diffraction studies showed a wide variety of inter metallic phases. Zn-Fe alloy showed a superior corrosion resistance than zinc coatings. An alloy containing greater than 40% Fe showed a good paintability. Hardness of the alloy deposits increased with increase in iron content in the alloy. Smooth, uniform and fine grained deposits were obtained for the Zn-Fe alloy containing 20% Fe.

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Makeev, S. M., E. A. Muromtsev, V. A. Makarov, and G. V. Belokonov. "FEATURES OF LEAD AND ZINC METALLOGENY WITHIN THE YENISEI RIDGE." Ores and metals, no. 3 (November 11, 2020): 68–84. http://dx.doi.org/10.47765/0869-5997-2020-10022.

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Information collected on deposits, ore occurrences, and lead and zinc mineralization points known within the Yenisei Ridge is provided. A summary of the latest data on the geology and metallogeny of lead and zinc in the region is presented. A brief description of the deposits is given and their ore formation typification is carried out. The position of deposits in a stratigraphic section, the relationship with geological formations and tectonic structures, and subsequent conclusions about deposit location patterns and metallogenic zonality of the area were examined. The position analysis of polymetallic mineralization in regional geophysical and geochemical field revealed the presence of lead → zinc → barium trend from the Ishimbinsk fault towards the Siberian platform and the potential discovery of economically significant polymetallic mineralization in the eastern Yenisei Ridge.

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6

Dejonghe, Léon. "Zinc–lead deposits of Belgium." Ore Geology Reviews 12, no. 5 (September 1998): 329–54. http://dx.doi.org/10.1016/s0169-1368(98)00007-9.

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7

Sindhu, H. S., Sumanth Joishy, B. V. Rajendra, and P. D. Babu. "Influence of Precursor Solution Concentration on Structure and Magnetic Properties of Zinc Oxide Thin Films." Key Engineering Materials 724 (December 2016): 43–47. http://dx.doi.org/10.4028/www.scientific.net/kem.724.43.

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Zinc oxide thin films were deposited on glass substrate at a substrate temperature of 673K by spray pyrolysis method using different concentration of 0.0125M, 0.025M and 0.05M of Zinc acetate solutions. The effect of molar concentrations on structure, surface morphology and magnetic properties of ZnO films were investigated using x-ray diffraction, scanning electron microscopy and vibrating sample magnetometer. All deposited films were polycrystalline in nature with hexagonal wurtzite structure having a preferential growth orientation along (101) plane. An improvement of crystallinity in the deposits with increasing concentration of sprayed solution was noticed. All deposit exhibit fibrous structure which increases with increase of precursor concentration solutions. At room temperature, all deposited films were shown diamagnetic character but when cooled to 5K, they have shown paramagnetic characteristics.

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Simicic, Milos, and Konstantin Popov. "Zinc electrodeposition from alkaline zincate solution by pulsating overpotentials." Journal of the Serbian Chemical Society 65, no. 9 (2000): 661–70. http://dx.doi.org/10.2298/jsc0009661s.

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It is well known that smooth zinc deposits cannot be obtained from alkaline zincate using constant overpotential and current rate. During prolonged metal deposition, spongy and dendritic deposits are formed. It has been shown that the deposits are less agglomerated in the case of square-wave pulsating overpotentials regime than the ones obtained in case of constant overpotential regime. This is explained in a semiquantitative way by two phenomena: selective anodic dissolution during overpotentials ?off? period and decreasing diffusion control. These effects is more pronounced at higher pause-to-pulse ratio. Increasing the pause-to-pulse ratio causes a reduction of the ratio between diffusion and activation overpotential, resulting in a more compact deposit. Confirmation of the proposed semiquantitative mathematical model was obtained by zinc electrodeposition onto a copper wire from a 0.1 M zincate solution in 1.0 M KOH at room temperature.

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Choulet, F., M. Buatier, L. Barbanson, R. Guégan, and A. Ennaciri. "Zinc-rich clays in supergene non-sulfide zinc deposits." Mineralium Deposita 51, no. 4 (October 6, 2015): 467–90. http://dx.doi.org/10.1007/s00126-015-0618-8.

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Jian, Long, Fu Ju Jia, and Yan Dao. "Geochemical Characteristics of Ore-Bearing Strata of Pb-Zn Deposits in the Sichuan-Yunnan-Guizhou Border Area in Southwest China." Advanced Materials Research 868 (December 2013): 113–16. http://dx.doi.org/10.4028/www.scientific.net/amr.868.113.

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The Pb-Zn deposits (or points) with different ages of ore-bearing strata are counted in in the paper. Through discussing the lithology and elemental geochemistry in ore-bearing strata to explain the lead element and zinc element relate to strata and lithology, the author suggested the lead-zinc deposit mainly were exposed in specific stratum, considering the deposits was obviously was controlled by stratum and was greatly influenced by lithology. For this reason, combining with the comparative study of element abundances in rock, it has maily demonstrated the relevance of ore-forming elements.

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P Marshall, Craig, Karen L Mackenzie, Junhong Chen, Dorothy Z Oehler, Graham A Logan, and Malcolm R Walter. "Microbes, organic matter and ore deposits." Microbiology Australia 25, no. 1 (2004): 36. http://dx.doi.org/10.1071/ma04136.

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The 1640 Ma (million years old) Here?s Your Chance (HYC) deposit at McArthur River, Northern Territory, Australia is one of the largest and least metamorphosed lead-zinc-silver deposits in the world. The mineralised interval has been divided into several orebodies and is separated by relatively barren sediment.

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Hu, Yun Hu, Xi Jun Liu, and Xiang Rong Luo. "Geoelectrochemical-Extraction Measurement Method to Look for Hidden Lead-Zinc Ore Deposit and Prospecting Effect." Advanced Materials Research 734-737 (August 2013): 95–99. http://dx.doi.org/10.4028/www.scientific.net/amr.734-737.95.

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The geoelectrochemical-extraction measurement is a ore prospecting method of deep-penetrating geochemistry, by using the element receptors to extract the mobile metal ions from the soil under the artificial electric field to look for the hidden ore deposit. The study of using the geoelectrochemical-extraction measurement method to look for blind lead-zinc ore deposit has been carried out in the Fuzichong lead-zinc polymetallic ore deposit and Panlong lead-zinc ore deposit of Guangxi, which resulted in the clearly geoelectrochemical anormaly above the known ore bodies. And the ore prospecting forecast conducted in the unknown ore regions shows that it is feasible to use the geoelectrochemical-extraction measurement method to expore the deep hidden lead-zinc ore deposits.

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Bishop, J. R., and D. W. Emerson. "Geophysical properties of zinc‐bearing deposits." Australian Journal of Earth Sciences 46, no. 3 (June 1999): 311–28. http://dx.doi.org/10.1046/j.1440-0952.1999.00706.x.

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Dhak, D., M. Mahon, E. Asselin, and A. Alfantazi. "Characterizing industrially electrowon sticky zinc deposits." Hydrometallurgy 111-112 (January 2012): 136–40. http://dx.doi.org/10.1016/j.hydromet.2011.09.007.

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Wen, Yue Hua, Tian Wang, Jie Cheng, Jun Qing Pan, Gao Ping Cao, and Yu Sheng Yang. "Lead Ion and Tetrabutylammonium Bromide as Inhibitors of the Spongy Growth of Zinc in Single Flow Zinc/Nickel Batteries." Advanced Materials Research 396-398 (November 2011): 18–23. http://dx.doi.org/10.4028/www.scientific.net/amr.396-398.18.

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The effectiveness of lead ion and tetrabutylammonium bromide (TBAB) as inhibitors of spongy zinc deposits from flowing zincate solutions has been testified. To assess the efficacy of the two additives, current–time technique using potentiostatic electro-deposition, scanning electron microscopy and cycling test were undertaken. The results show that the spongy growth of zinc can be effectively inhibited by the individual addition of 10-4M Pb(II) or TBAB at the cathodic potential (η=-100mV). But, the dual addition of 10-4M Pb(II) and 5×10-5M TBAB produces more effective suppression on spongy zinc deposits. Obvious synergistic effect of Pb(II) and TBAB on the spongy inhibition of zinc electrode is found in flowing electrolytes. From the charge/discharge cycling tests of the single flow Zn-Ni test cells, it is shown that the rechargeability of deposited Zn anode is highly improved by the mixed introduction of 10-4M Pb(II) and 5×10-5M TBAB.

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Galyamov, A. L., A. V. Volkov, K. Yu Murashov, N. V. Sidorova, and T. P. Kuznetsova. "Prospects for identifying the Mississippi Valley type deposits in the North-East of Russia." LITHOSPHERE (Russia) 20, no. 2 (April 25, 2020): 254–70. http://dx.doi.org/10.24930/1681-9004-2020-20-2-254-270.

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Research subject. The Mississippi Valley type deposits make up about a third of the global balance of lead and zinc reserves, resources and production. Additionally, silver, antimony, arsenic, barium, bismuth, cadmium, cobalt, gallium, indium, mercury, molybdenum, nickel and thallium can be present in the ores of these deposits. In the North-East of Russia, the Mississippi Valley type of deposits is poorly represented. In this work, we investigate the deposits of the Sardana ore cluster of the Republic of Sakha (Yakutia) and individual deposits of the Magadan region. Materials and methods. The article discusses the results of previous scientific research and new data on the geochemical features, isotopic composition of ores and geological and structural conditions for the formation of the Sardana cluster deposit. In addition, the potential for identifying stratiform lead-zinc deposits is associated with favourable geodynamic conditions in the region, as well as with the refinement and adaptation of the forecast-search model of MVT deposits for the North-East of Russia. Results. The mineralogical and geochemical features of the rocks and ores of the Sardana cluster deposits, the morphology of ore bodies, their zoning elements, as well as isotopic ratios indicate that the ores are likely to be of the Mississippi Valley type with the onset of ore deposition at early diagenetic and catagenetic stages. The distribution of rare elements indicates a significant role of superimposed metamorphism of the host carbonate-terrigenous strata in the deposition of the ores of producing stages. Conclusion. The potential possibility of increasing the mineral and raw material base of lead and zinc is associated with the identification of sedimentary basins with a stagnant anoxic regime of carbonate accumulation in the immediate vicinity of the development areas of rift complexes, as well as with the presence of other critically important forecast-search signs. In addition to the well-known Killakh metallogenic zone, Tuora-Sis and Orulgan metallogenic taxa located in the north of the Republic of Sakha (Yakutia) with known stratiform manifestations of lead and zinc belong to such areas.

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Cui, Wen. "The Effect of Current Density on Zinc Whisker Growth." Advanced Materials Research 562-564 (August 2012): 129–33. http://dx.doi.org/10.4028/www.scientific.net/amr.562-564.129.

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Zinc whiskers threaten the safety of electronic components due to their electrical conductivity. Factors that control zinc whisker growth are still unknown. The aim of this study was to investigate the effect of current density (1.5, 2.25 and 3.0 A/dm2) on the formation of zinc whiskers, and to relate this to the microstructure of the deposit. Scanning Electron Microscopy (SEM) analyses show that the surface morphologies of deposits became rougher when current density increased; however, nodule density increased from 25/mm2 to 53/mm2 when current density increased from 1.5 to 2.25 A/dm2, and it decreased to 24/mm2 when current density increased to 3.0 A/dm2. X-ray diffraction analyses (XRD) show that the preferred orientation of deposits remain when current densities increased from 1.5 to 2.25 A/dm2, while it changed to when current density increased to 3.0 A/dm2. Results show that zinc coatings electroplated at 2.25 A/dm2 may have greater risk of whisker growth then that electroplated at 1.5 or 3.0 A/dm2.

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Gauthier, Michel, and Francis Chartrand. "Metallogeny of the Grenville Province revisited." Canadian Journal of Earth Sciences 42, no. 10 (October 1, 2005): 1719–34. http://dx.doi.org/10.1139/e05-051.

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Four new petrogenetic and metallogenic models are proposed herein to explain the formation of important mineral deposits in the Grenville Province, providing a framework from which to reappraise Grenvillian mineral potential. Recognition of a high-pressure metamorphic belt within the Grenville Province suggests a potential for eclogite-hosted rutile deposits, an important and much-sought commodity. A recently developed Norwegian model proposes that anorthosite genesis occurred through lower crust underplating and coeval partial melting, rather than by plume magmatism. Applied to the Grenville Province, the new petrogenetic model may provide insight into the widespread occurrence of platinum group element (PGE) poor nickel showings and the distribution of chromite, Ti-rich, and low-Ti iron-oxide deposits within the Grenville and adjacent terranes. A new type of sedimentaryexhalative (SEDEX) mineralization formed by oxidized brines has been defined following the discovery of new deposits in Australia. Applied to the Grenville Province, it provides a possible explanation for two long-recognized features of marble-hosted zinc deposits: (i) the presence of meta-siderite beds occurring as distal haloes around SEDEX zinc deposits, and (ii) the mutually exclusive division of these SEDEX deposits into massive sulphide and nonsulphide groups. The discovery of the giant Olympic Dam iron-oxide coppergold (IOCG) deposit in Australia renewed the interest in magmatic low-Ti iron-oxide deposits in the Grenville Province that have been known and mined since early colonial times. Subsequent exploration in the northeastern part of the Grenville Province revealed the presence of breccia-hosted CuAuU rare-earth element (REE)-bearing iron-oxide mineralization. This deposit and other low-Ti iron-oxide deposits in the southwestern Grenville Province have a previously undocumented close spatial and temporal association with Ti-rich iron-oxide deposits. These examples demonstrate how new petrogenetic, tectonic, and ore deposit models developed in unmetamorphosed rocks can be successfully adapted to high-grade terranes, where they stimulate mineral exploration in these challenging conditions. Furthermore, by tracking the formation of ore deposits in the lower crust, the existence of unsuspected metallogenic associations in the higher crust, such as the low-Ti and high-Ti iron-oxide association observed in the Grenville Province, may be revealed.

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Luong, Khang Quang, Hung The Khuong, Tuong Van Nguyen, and Thu Thi Le. "Study on establishing a mining group of deposit and an exploration grid pattern for lead - zinc ore in Ban Lim area, Cao Bang province." Journal of Mining and Earth Sciences 61, no. 3 (June 30, 2020): 38–50. http://dx.doi.org/10.46326/jmes.2020.61(3).05.

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Ban Lim area in Cao Bang province has proposed a high potential of lead-zinc resources, which have occurred in different rocks of geological formation. The paper-based on collecting, synthesizing, and geological processing data. In addition, mathematical methods were also applied to recognize studied objects of the exploration process using a quantitative description. The results how that the lead-zinc orebodies in Ban Lim area mainly occurred in lens-shaped and distributed in layered surfaces of the dolomitized limestone of Coc Xo formation. The average lead-zinc content of the orebodies is in a range from 3.27% to 8.33%; its coefficient of variation (Vc) is in a range from 13.71% (evenly) to 137.92% (very unevenly). Generally, the lead-zinc contents of the orebodies in Ban Lim area mainly comply with the standard normal distribution. The average thicknesses of the orebodies are in a range from 0.92 m to 6.48 m, its coefficient of variation (Vm) is in the range from 8.7% (stable) to 132.95% (very unstable). Quantitative calculation results have shown that Ban Lim lead-zinc deposit belongs to group III of deposits. For the exploration of this type of minerals, it is recommended to use a linear grid pattern. Appropriate exploration grid pattern for the 122 category reserve is (60÷80) m × (30÷40) m. These calculated results are well- documented foundations that allow suggesting a mining group of deposit and an exploration grid pattern for lead-zinc ore in Ban Lim area and other lead-zinc deposits occurring in similar geological settings.

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Xu, Shan, Yun Feng Liu, Yong Qiang Yang, and Shou Yi Li. "The Characters of Bairendaba - Huanggangliang Deposits, Inner Mongolia, China." Advanced Materials Research 881-883 (January 2014): 1616–20. http://dx.doi.org/10.4028/www.scientific.net/amr.881-883.1616.

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The paper systematically analyzed the relationships between geological conditions including strata and magmatic rock, etc and lead-zinc deposits, and found out their control action and features on Pb-Zn and Fe-Sn deposits, then established the comprehensive prospecting model for Pb-Zn and Fe-Sn deposits that consisted of geological, geochemical and mineralization information, which will provide theoretical basis for predicting the lead-zinc metallogenic deposits within this metallegenic belt.

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Thomassen, B. "The gold and base metal potential of the Lower Proterozoic Karrat Group, West Greenland." Rapport Grønlands Geologiske Undersøgelse 155 (January 1, 1992): 57–66. http://dx.doi.org/10.34194/rapggu.v155.8182.

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The mineral potential of the Karrat Group in West Greenland became important after exhaustion in 1990 of the Black Angel lead-zinc mine situated within this supracrustal unit. It consists of shelf and turbidite type metasediments and subordinate metavolcanics deposited in an epicontinental marginal basin. Known mineralization comprises the Black Angel deposit and a number of other marble-hosted lead-zinc occurrences, as well as extensive sulphide facies iron formations and vein type base and precious metals mineralisation in quartzites and metagreywackes. Further areas with anomalously high contents of both base metals and gold-arsenic-tungsten are indicated by drainage geochemistry. The mineral potential of the Karrat Group is for massive base metal sulphide deposits hosted in marbles or clastic metasediments, and turbidite hosted gold-bearing veins and shear zones.

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Wang, Kun, and Ke Yan Xiao. "Three-Dimensional Modeling of MVT Lead-Zinc Deposit in Western Hunan and its Application." Applied Mechanics and Materials 644-650 (September 2014): 2674–77. http://dx.doi.org/10.4028/www.scientific.net/amm.644-650.2674.

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In order to study the evolution and metallogenic regularity of MVT lead-zinc deposits in western portion of Hunan province (China), two sets of three-dimensional model are established by Minexplorer software: 3D model in typical deposit and 3Dmodel on regional scale. On the basis of synthetic analyses of two sets of models, the further prospecting should be focused on the north part of ore-bearing layer along the Huayuan-Zhangjiajie fault belt. It is effective to observe occurrence and distribution characteristics from the 3D geological model, and to provide the basis for further exploration prospecting of the concealed deposits.

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De la Nuez Colon, D., and M. Santa Cruz Pacheco. "Gold and gold-bearing volcanogenic massive sulphide deposits of the Central Cuba." Proceedings of higher educational establishments. Geology and Exploration, no. 3 (February 28, 2021): 27–37. http://dx.doi.org/10.32454/0016-7762-2020-63-3-27-37.

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Background. Volcanogenic massive sulphide deposits (VMS) are the most important sources of Cu and Zn; they account for a large share of the world production of Pb, Ag, Au, Se, Te, Bi and Sb, as well as small amounts of many other metals. The polymetallic VMS deposits of economic value of varying degrees are known in the rocks of the Los Pasos Cretaceous Formation, Cuba.Aim. To show the potential of the Cretaceous volcanic deposits of Central Cuba for gold, silver, copper, zinc and lead deposit prospecting.Materials and methods. The study characterises the San Fernando, Independencia, Antonio, Los Cerros VMS deposits and the Boca del Toro and El Sol ore occurrences located in the Los Pasos Formation. The similarities and differences in the mineral and elemental composition and structures of the ores of these objects are described, which underlie the assessment of their economic importance.Results. The latitudinal zoning of VMS and noble metal mineralisation of the Central Cuban ore region is outlined. In the west, copper-VMS deposits with accompanying gold ore objects prevail. In the east, copper-zinc VMS deposits with barite and gold-silver objects are widespread.Conclusions. It is necessary to assume the different erosional sections corresponding to the blocks of the Cretaceous volcanic arc of Central Cuba, which is larger in the west and smaller in the east. Proceeding from the presence of veinlet gold ores, their confinement to tectonic zones and the lack of correlation between noble and chalcophile metals at the San Fernando deposit, as well as significantly different gold-silver ratios in the considered ore objects, it could be assumed that some of the gold-silver ores were formed after VMS. The obtained Au/Ag ratios are close to the ores of the high sulphidation type (high sulphide ores) from similar ore regions of Venezuela and the Kur-il island arc. In this regard, one can expect hidden gold deposits in the west and gold-silver deposits in the east of the studied area.

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Alférez, M. José M., Inmaculada López Aliaga, Mercedes Barrionuevo, and Margarita S. Campos. "Effect of dietary inclusion of goat milk on the bioavailability of zinc and selenium in rats." Journal of Dairy Research 70, no. 2 (May 2003): 181–87. http://dx.doi.org/10.1017/s0022029903006058.

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The effects of dietary inclusion of freeze-dried goat and cow milk on the utilization of zinc and selenium, and on the metabolic fate of zinc, were studied in transected (control) and resected rats (resection of 50% of the distal small intestine). Intestinal resection reduced the apparent digestibility coefficient and zinc retention in the cow milk diet, whereas these biological indices were similar in transected (control) and resected rats with standard (without milk) and goat milk diets. The apparent digestibility coefficient and retention of selenium were not affected by intestinal resection in the animals fed with the three diets studied. In transected (control) and resected rats, the apparent digestibility coefficient and retention of zinc and selenium were higher for the goat milk diet than for the other two diets. Zinc deposits in the organs, expressed as μg/g dry weight were in order of decreasing concentrations: femur, testes, sternum, liver, kidney, heart, spleen, longissimus dorsi muscle and brain. Deposits were greatest with the goat milk diet, followed by the standard diet and were lowest for the rats given the cow milk diet, both for transected (control) and resected animals.We conclude that consumption of the goat milk diet produces a greater bioavailability of zinc and selenium and a greater deposit of zinc in key organs, for both the transected (control) and the resected rats, with respect to the standard diet and the cow milk diet.

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Konkol, Izabela, Jan Cebula, Jolanta Bohdziewicz, Krzysztof Piotrowski, Piotr Sakiewicz, Magdalena Piechaczek-Wereszczyńska, and Adam Cenian. "Mineral Deposit Formation in Gas Engines During Combustion of Biogas from Landfills and Municipal WWTP." Ecological Chemistry and Engineering S 27, no. 3 (September 1, 2020): 347–56. http://dx.doi.org/10.2478/eces-2020-0022.

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AbstractThe biogas produced in municipal wastewater-treatment plants (WWTP) should be cleaned before it can be used as a fuel in internal combustion engines. Efficient running of such engines is possible only subject to using high quality biogas and lubricating oil. Otherwise, biogas impurities in course of complex chemical reactions may form deposits on various engine parts as well as seriously contaminate the lubricating oil. In this paper, mineral deposits containing high concentration of bismuth, silicon, sulphur, calcium and zinc are studied. Silicon deposits demonstrating strong friction properties are formed during combustion of volatile silica compounds. As these deposits build up, abrasion problems, ignition failure and even engine failure result. The bismuth containing deposits comes from bearings degradation, zinc and calcium were derived from the additives present in commercially available lubricating oil, while lead, aluminium, copper, nickel, iron and chromium were introduced by engine wear phenomena. The highest bismuth content was located at the engine cylinder heads and the lowest at the exhaust elements, whereas highest calcium content was registered on the pistons. Silicon containing deposits are highest in the exhaust and lowest at the engine head. Zinc deposits are highest at the piston.

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Smyk, Mark C., and James M. Franklin. "A synopsis of mineral deposits in the Archean and Proterozoic rocks of the Lake Nipigon Region, Thunder Bay District, Ontario." Canadian Journal of Earth Sciences 44, no. 8 (August 1, 2007): 1041–53. http://dx.doi.org/10.1139/e07-013.

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A variety of metallic and non-metallic mineral deposit types occur within Archean and Proterozoic rocks in the area encompassing the Lake Nipigon Region Geoscience Initiative. Archean deposit types include Algoma-type banded iron formation-hosted iron (e.g., Lake Nipigon iron range); volcanogenic massive sulphide copper–zinc (e.g., Onaman–Tashota belt); ultramafic intrusion-hosted chromium (e.g., Puddy–Chrome lakes); mafic to ultramafic intrusion-hosted copper–nickel – platinum group element (PGE) (e.g., Lac des Iles); and pegmatite-hosted deposits of rare metals (Li, Ta, Be), uranium, and molybdenum (e.g., Georgia Lake field, Black Sturgeon Lake, and Anderson Lake, respectively). Mesothermal lode gold deposits are prominent in the Beardmore–Geraldton camp. Superior-type iron formation occurs in Paleoproterozoic Gunflint Formation. "Red-bed" copper occurs in Mesoproterozoic Midcontinent Rift-related Osler Group volcanic and interflow sedimentary rocks. Native copper and copper sulphides occur in Mesoproterozoic Sibley Group sedimentary rocks, adjacent to ultramafic intrusions. These mafic to ultramafic intrusions, associated with Midcontinent Rift magmatism, host copper–nickel–PGE deposits (e.g., Seagull, Great Lakes Nickel). Silver-bearing veins occur in Paleoproterozoic Animikie Group sedimentary rocks in proximity to Midcontinent Rift-related mafic intrusions (e.g., Silver Islet, Silver Mountain). Lead–zinc–barite veins, uranium-bearing veins, and amethyst vein and replacement-type deposits may be cogenetic and formed at or near the unconformity between Sibley Group basal sandstone and underlying Archean granitic basement (e.g., Dorion, Black Sturgeon Lake, McTavish Township). The hydrothermal systems that produced all of these veins were probably driven by heat associated with Midcontinent rifting. Many occur in structures related to rift-bounding faults. Iron oxide – copper–gold deposits may occur near the English Bay intrusion.

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Bybee, Karen. "Inhibition of Lead and Zinc Sulphide Scale Deposits." Journal of Petroleum Technology 53, no. 03 (March 1, 2001): 61–62. http://dx.doi.org/10.2118/0301-0061-jpt.

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Leach, D. L., D. C. Bradley, D. Huston, S. A. Pisarevsky, R. D. Taylor, and S. J. Gardoll. "Sediment-Hosted Lead-Zinc Deposits in Earth History." Economic Geology 105, no. 3 (May 1, 2010): 593–625. http://dx.doi.org/10.2113/gsecongeo.105.3.593.

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Sass-Gustkiewicz, Maria, and Henryk Kucha. "7-2: Zinc–Lead deposits, Upper Silesia, Poland." Ore Geology Reviews 27, no. 1-4 (November 2005): 269. http://dx.doi.org/10.1016/j.oregeorev.2005.07.011.

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Spinks, Samuel C., Yulia Uvarova, Robert Thorne, Ravinder Anand, Nathan Reid, Alistair White, Yusen Ley-Cooper, et al. "Detection of zinc deposits using terrestrial ferromanganese crusts." Ore Geology Reviews 80 (January 2017): 484–503. http://dx.doi.org/10.1016/j.oregeorev.2016.07.015.

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Prokin, V. A., and F. P. Buslaev. "Massive copper–zinc sulphide deposits in the Urals." Ore Geology Reviews 14, no. 1 (December 1998): 1–69. http://dx.doi.org/10.1016/s0169-1368(98)00014-6.

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32

Sekar, R., R. M. Krishnan, V. S. Muralidharan, and S. Jayakrishnan. "Characteristics of acetate based zinc bath and deposits." Transactions of the IMF 83, no. 2 (April 2005): 104–8. http://dx.doi.org/10.1179/002029605x29384.

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Shears, A. P. "Zinc-cobalt deposits from an acid chloride electrolyte." Transactions of the IMF 67, no. 1 (January 1989): 67–69. http://dx.doi.org/10.1080/00202967.1989.11870843.

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Than Htun, Aung Kyin, and Khin Zaw. "Chapter 27 Lead–zinc–silver deposits of Myanmar." Geological Society, London, Memoirs 48, no. 1 (2017): 589–623. http://dx.doi.org/10.1144/m48.27.

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Park, H., and J. A. Szpunar. "The Microstructural Characterization of Electrogalvanized Zinc–Iron and Zinc–Nickel Coatings." Textures and Microstructures 34, no. 2-3 (January 1, 2000): 119–46. http://dx.doi.org/10.1155/tsm.34.119.

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In this study, the development of the microstructure of zinc–iron and zinc–nickel coatings on steel sheet electrodeposited at various deposition conditions, is analyzed. The evolution of the coating microstructure – texture, surface morphology, crystallographic lattice, microstress, alloy composition and phase of coatings – is investigated at different current densities and deposition times. The microstructure of zinc alloy coatings varies significantly with the change of deposition parameters. The present study proposes that the transformarion of texture during the alloy codeposition is closely related to the morphological characteristics of the coating surface and the change of alloy and phase composition of the deposit. Anomalous codeposition behavior, is considered responsible for the change or transformation of the microstructure of coatings. The texture of zinc–iron coatings changes from the combined texture of the basal fiber and non-fiber pyramidal component to the pyramidal fiber texture with the current density increase. In the case of zinc–nickel coatings, the intensity of the {101} texture of γ phase increases with increasing nickel content, while the intensity of the {100} texture decreases. A correlation between the texture, morphology and alloy content in the deposits is discussed.

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Nguyen, D., P. A. Ignatov, T. Th Nguyen, and D. N. Tang. "Mineralogical-geochemical characteristics of lead-zinc deposits in Chodon-Chodien area, North-Eastern Vietnam." Proceedings of higher educational establishments. Geology and Exploration, no. 5 (November 2, 2018): 31–38. http://dx.doi.org/10.32454/0016-7762-2018-5-31-38.

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Cho Don-Cho Dien is a potential area for lead-zinc deposits with reserves of about 40% of Vietnam’s total lead-zinc ores. Most of the deposits are hidden. The results of geological structural analysis have shown that the lead-zinc mineralization here is mainly concentrated in terrigenous-carbonate sediments of Devonian age and closely related to late Permian-Triassic granite Phia Bioc complex. The paragenetic ores assosiations have been distinguished and a scheme of minerals formation has been designed. By the geochemical composition, lead-zinc ore consist of principal elements (Pb, Zn) and the accompanying elements (Mn, Fe, Cu, Cd, Bi, As, Ag, Sn, W, Sb). Statistical analysis has indicated that Pb has a strong positive correlation with Sb, a moderate correlation with Ag and a weak correlation with Sn and W. While Zn has strong, moderate and weak correlations with Cd, W and Cu, respectively. The presented data should be used for finding the hidden lead-zinc ore deposits in the Cho Don — Cho Dien area.

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Borisov, Michael, Dmitry Bychkov, Mariya Volkova, and Yury Shvarov. "Role of water/rock interaction in the formation of ore-bearing solutions and deposition of hydrothermal ore, Sadon Mining District, North Caucasus Mountains, Russia." E3S Web of Conferences 98 (2019): 05003. http://dx.doi.org/10.1051/e3sconf/20199805003.

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REE distribution patterns of the ores and host rocks of the Dzhimidon vein lead-zinc deposit (North Caucasus, Ossetia, Sadon mining district, Russia) have been analyzed to elucidate the source(s) of hydrothermal ore deposits. Two types of prevailing rocks are involved in ore formation - Paleozoic granites (the main ore-hosting rocks at the majority of deposits) and Precambrian schists (specific only the for host rocks of the Dzhimidon deposit). The source of ore components tends to be complex and includes host rocks in variable proportions that could be characterized by REE distribution in ores. Interaction of water with combined sources was thermodynamically modeled. Critical differences were found in the ore-forming models, with variable sequence and rock proportions during interaction with barren fluid.

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Zhang, Huan, Jun Li, Tong Wei Luo, and Wen Li Lv. "Geological Characteristics of the Changdong-Manxu Pb-Zn Deposit in Ninger, Yunnan and its Ore-Search Prospects." Advanced Materials Research 634-638 (January 2013): 3390–93. http://dx.doi.org/10.4028/www.scientific.net/amr.634-638.3390.

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Since the 1950s, the Changdong-Manxu Pb-Zn deposit has ever been explored for ore bodies by a number of Geology Parties，On the basis of studying the regional metallogenic geological background, Geologic characteristics of the deposits, ore-controlling geological factors, they thought the deposit belongs to sedimentary transformation type stratabound lead-zinc ore deposit ,which controlled by fault structures. According to the features of ore-controlling fault features and metallogenic conditions，it is possible to find large to super-large ores inside and outside the tectonic zones of the deposit.

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Vaughan, J. P. "The iron end-member of the pyrosmalite series from the Pegmont lead-zinc deposit, Queensland." Mineralogical Magazine 50, no. 357 (September 1986): 527–31. http://dx.doi.org/10.1180/minmag.1986.050.357.17.

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AbstractPyrosmalite [(Mn,Fe)8(OH,Cl)10Si6O15] has been identified by X-ray diffraction from the Pegmont lead-zinc deposit, north-west Queensland. Microprobe analyses indicate that it is the first reported occurrence of an extremely iron-rich member of the series. The characteristically high chlorine content of pyrosmalite in Pegmont and other similar base metal deposits may provide some evidence concerning the depositional environment of these stratiform Pb-Zn ores.

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Ng, Sook Mey, Zulkarnain Zainal, and Mat Yunus Wan Mahmood. "Effect of Ethylenediamine Tetraacetic Acid in Electrochemical Deposition of Zinc Selenide." Advanced Materials Research 501 (April 2012): 231–35. http://dx.doi.org/10.4028/www.scientific.net/amr.501.231.

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Zinc selenide based materials are suitable for fabrication of light emitting diodes operating in the blue-green light. In fabrication of zinc selenide films, electrodeposition method appears to be the simplest and low-cost technique. In this work, the application of ethylenediamine tetraacetic acid (EDTA) in electrodeposition of zinc selenide was investigated to evaluate its effect on the optical and electronic properties of the films. It was found that the presence of EDTA stabilized the cathodic over potential during deposition. The zinc selenide deposits consist of small grain size deposits which contribute to enhance the photoelectrochemical performance. Besides that, the zinc selenide films produced in the presence of EDTA also shows high photoluminescence intensity due to minimized surface defects on the glass substrate. The film shows photoluminescence peak at the blue region of wavelength due to its quantum confinement effect. The optical property of zinc selenide film was measured using ultraviolet-visible spectrophotometer. The band gap of zinc selenide is 2.65 eV with direct transition.

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Wanotayan, Thanyalux, Pongsakorn Kantichaimongkol, Viriyah Chobaomsup, Sirikarn Sattawitchayapit, Klaus Schmid, Martin Metzner, Tongjai Chookajorn, and Yuttanant Boonyongmaneerat. "Effects of Chemical Compositions on Plating Characteristics of Alkaline Non-Cyanide Electrogalvanized Coatings." Nanomaterials 10, no. 11 (October 23, 2020): 2101. http://dx.doi.org/10.3390/nano10112101.

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The effects of zinc and sodium hydroxide concentrations in an alkaline non-cyanide zinc bath on the electrodeposition characteristics of zinc deposits are systematically investigated. Using microstructural and phase analyses of specimens with specifically designed geometries, the study indicates that the bath formulations critically control the electrogalvanizing characteristics and affect the coating surface morphology, deposition rate, throwing power, coating uniformity, and residual stresses developed during and after electrogalvanizing. The coatings produced from baths with a moderate Zn-to-NaOH ratio of 0.067–0.092 appear to provide uniform and compact deposits, moderately high deposition rate, and relatively low residual stresses.

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42

Galyamov, A. L., A. V. Volkov, K. V. Lobanov, and K. Y. Murashov. "Prospects for identifying strategic metals deposits in the Russian Arctic." Arctic: Ecology and Economy, no. 1(25) (March 2017): 59–74. http://dx.doi.org/10.25283/2223-4594-2017-1-59-74.

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Mineral deposits are important in the economy of the Russian Arctic. In addition to the petroleum and gas, the resources of PGE minerals and gold, nickel and titanium are more than 10% of global significance. Meanwhile, the most arctic territory is out of availability of detailed geological and geophysical data due to severe climatic situation. The spatial relations of ore deposits and ore-bearing sequences of different geodynamic settings at Russia territory show that the geological sequences of three basic types of geodynamic environment contain an overwhelming number (over 70%) deposits: archaean-proterozoic basement, passive continental margin, volcanic arcs of active margins. There are two groups of ore types. The first are the types (i.e. BIF) are specific to definite sedimentary or igneous rocks, the second (i.e. gold veins etc.) are due to superimposed geotectonic processes. The complex metallogeny may be found in the subductional and accretional terrains, where the blocks of different geodynamic formation are combined. In these areas ores, previously deposited, might been transformed under the later processes until the regeneration and development of new type ores. The convergence of passive margins also might had caused the changes of geodynamic environments and led to form the vertical and lateral facies with metallogenic features combined. In Arctic regions, despite the similar ratio formation areas, the relative number of discovered and evaluated ore deposits is low in areas of active margin, including volcanic arcs and collision. This is especially true for deposits of lead and zinc, ferrous and rare metals. The significant lack of gold deposits is evident. In the areas of passive margin facies the most hidden deposits are of rare and ferrous metals, as well as lead, zinc and gold.

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Redka, A., V. Bomko, M. Slomchynskiy, O. Cherniavskiy, and S. Babenko. "Digestibility of feed nutrients, nutrient excretion and nutrient retention in broilers under consumption of combined feed with sulfate and zinc-mixed ligand complex." Ukrainian Journal of Ecology 9, no. 3 (October 7, 2019): 156–61. http://dx.doi.org/10.15421/2019_73.

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Digestibility of the feed nutrients and the chemical elements balance in broiler chickens were studied under use of mixed feed with sulfate and Zink-mixed ligand complex in the physiological experiment that was conducted in the vivarium of the Bila Tserkva National Agrarian University. A tendency to increase the level of feed nutrients digestibility in the experimental groups of broiler chickens consuming mixed fodders with Zinc-mixed ligand complex was revealed in the conducted experiment. The nutrients digestibility indices were the highest in the chickens of the experimental group 3 where Zink-mixed ligand complex was added to the mixed feed. 45, 37.5 and 30 g of the element was added per 1 ton of mixed feed, respectively, for the growing period of 5-21, 22-35 and 36-42 days. The protein digestibility in this group was 89.2, fat - 82.5, fiber - 12.9 and Nitrogen free extractive substances (NFES) - 83.8%. The lowest digestibility indices of the nutrients were in the control group chickens, which, depending on the age, consumed feeds added with Zinc sulfate at doses corresponding to the introduction of 60, 50, and 40 g of the element per 1 ton of feed - 60.8, 80.2, 11.27, and 82.2%, respectively. Indicators of Nitrogen, Calcium, Phosphorus, and Zinc deposits in the body were also higher in the chicks of the experimental group 3 consuming the feed with Zink-mixed ligand complex. Feeding the birds with Zinc-mixed ligand complex as a component of mixed feed, in comparison with sulfate, improves the nutrients digestibility and increases the amount of chemical elements deposited in the body, which makes it possible to reduce the dose of the additive.

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YARITA, Somei, and Katsutsugu KITADA. "Characterization of Alkaline Platinum-Zinc Alloy Plating Bath Deposits." Journal of the Surface Finishing Society of Japan 49, no. 1 (1998): 88–91. http://dx.doi.org/10.4139/sfj.49.88.

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45

Hitzman, M. W., N. A. Reynolds, D. F. Sangster, C. R. Allen, and C. E. Carman. "Classification, Genesis, and Exploration Guides for Nonsulfide Zinc Deposits." Economic Geology 98, no. 4 (June 1, 2003): 685–714. http://dx.doi.org/10.2113/gsecongeo.98.4.685.

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NAKANO, Hiroaki, and Hisaaki FUKUSHIMA. "Morphology Control of Zinc Deposits of Electrogalvanized Steel Sheets." Tetsu-to-Hagane 88, no. 5 (2002): 236–42. http://dx.doi.org/10.2355/tetsutohagane1955.88.5_236.

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Rollinson, Gavyn K., Jens C. Ø. Andersen, Ross J. Stickland, Maria Boni, and Rob Fairhurst. "Characterisation of non-sulphide zinc deposits using QEMSCAN®." Minerals Engineering 24, no. 8 (July 2011): 778–87. http://dx.doi.org/10.1016/j.mineng.2011.02.004.

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Li, Zhaolin, Hongzhong Guo, and Lihong Lie. "Organic geochemistry of lead-zinc polymetallic deposits, northern Guangdong." Chinese Journal of Geochemistry 16, no. 4 (October 1997): 330–35. http://dx.doi.org/10.1007/bf02870917.

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Hu, Chi-Chang, Chun-Kou Wang, and Gen-Lan Lee. "Composition control of tin–zinc deposits using experimental strategies." Electrochimica Acta 51, no. 18 (May 2006): 3692–98. http://dx.doi.org/10.1016/j.electacta.2005.10.025.

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Duczmal-Czernikiewicz, Agata, Adilkhan Baibatsha, Alma Bekbotayeva, Gulnara Omarova, and Akmaral Baisalova. "Ore Minerals and Metal Distribution in Tailings of Sediment-Hosted Stratiform Copper Deposits from Poland and Kazakhstan." Minerals 11, no. 7 (July 12, 2021): 752. http://dx.doi.org/10.3390/min11070752.

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This study, carried out in tailings from two sediment-hosted stratiform copper deposits in the Lublin-Głogów Copper District in Poland (Kupferschiefer-type deposit) and Zhezkazgan (cupriferous sandstone-type deposit) in Kazakhstan, analysed the mineralogy of copper, zinc, and lead minerals as related to metal accumulation in sediments. Microscopic study in reflected light and SEM–EDS (Scanning Electron Microscope—Energy Dispersive Spectrometer) analysis, as well as chemical diversity in the used INAA (Instrumental Neutron Activation Analysis), ICP (Inductively Coupled Plasma), and AAS (Atomic Absorption Spectroscopy) methods in 35 samples from Kazakhstan and 35 from Poland were examined due to their diversity. In both tailing deposits in Kazakhstan and Poland, heavy fractions were dominated by copper sulphides: chalcopyrite (CuFeS2), bornite (Cu5FeS4). and chalcocite (Cu2S). Moreover, sphalerite, galena, and cerussite have been recognized as a carriers of Zn and Pb. Their geochemistry was dominated by Cu, showing a mean content of 2500 ppm, in both Poland and Kazakhstan. Zinc and lead also occurred, showing a content of approximately 200 ppm and 500 ppm in Poland, and 1500 ppm Zn and 2500 ppm Pb in Kazakhstan, respectively. Grain size analysis indicated that the dominant grain size in both districts corresponded to the silt and fine sands fractions. Copper, zinc and lead sulphides accumulated in fine fractions in tailings from Kazakhstan (in sandstones and quartz grains), and mainly in coarse fractions in Poland (within carbonates, sandstones, and black shales). Mineralogical and geochemical features should be taken into consideration when assessing potential metal sources of technogenic materials.

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Journal articles on the topic 'Zinc deposits'

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