A mineralogical approach to quantifying ore variability within …
A mineralogical approach to quantifying ore variability within a polymetallic Cu-Pb-Zn Broken Hill-type deposit and its implications for geometallurgy Henry J.J. Gordon A dissertation presented in partial fulfilment of the requirements for the degree of Master of Geology in the Faculty of Science at Stellenbosch University
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ORE DEPOSITS OF NIGERIA: DISTRIBUTION AND TYPES
2018. Ore deposits are sources of raw materials for industries. This paper examines the types of ore deposits in Nigeria. Ores of iron, tin-niobium-tantalum deposits, and precious metals in the Nigerian basement complex are predominantly associated with the metasediments (gneisses and schists). Associated with the older granites and ...
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(PDF) Geochemical signatures of manganese ores …
Co/Zn vs Co+Ni+Cu bivariate diagram (After Toth, 1980) shows the hydrothermal origin for the manganese ores of Barbil, Noamundi-Koira basin, Singhbhum Craton. Figure 9.
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GEOLOGY AND MINERAL RESOURCES OF NIGERIA AND …
The Petroleum Technology development Fund (PTDF) has endowed a Professorial chair in geology and mineral resources at the University of Jos, Nigeria with the mandate to to promote high level ...
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ORE DEPOSITS OF NIGERIA: DISTRIBUTION AND TYPES
This paper examines the types of ore deposits in Nigeria. Ores of iron, tin-niobium-tantalum deposits, and precious metals in the Nigerian basement complex are predominantly …
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Geochemical studies of mineral bearing ores from Nasarawa …
The content of a metal in an ore can be used to identify the ore type, for example Nyeba district of Nigeria Gossan collected over a known Pb–Zn deposit contained 4000ppm Pb and 500ppm Zn and was said to be a very poor site (Rose et al., 1979). Niobium and Tantalum result is presented in Table 1 and 2.
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Processes | Free Full-Text | Ecological Restoration of Wetland
The contents of Mn, Pb, Zn, Cd, and Cu have decreased by 11.5%, 19.3%, 82.0%, 33.3%, and 80.0%, respectively. Among them, the removal rate of Zn and Cu was the highest, and the water outlet of the Class I wetland unit is lower than the national discharge standard . In general, the treatment effect of Grade I wetland unit treatment is …
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Evaluation of Water Quality and Heavy Metal
Ologe and Badagry Lagoons are important tropical lagoons in Lagos, Nigeria. The water quality and heavy metal concentration were studied for a period of 2 years (Aug. 2016 to Jul. 2018) using ...
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Appraising the Physico-chemical Characteristics and
A study in Lagos, Nigeria reported pH values ranging from 5.94 to 7.63 in surface water samples from Tin Can Island [54]. ... of samples from different locations at quarry site in Ebonyi State ...
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Distribution and Multivariate Pollution Risks Assessment of
The Itakpe abandoned iron-ore mines constitute the largest iron-ore deposits in Nigeria with an estimated reserve of about three million metric tons of ore. The present effort is a part of a comprehensive study to estimate the environmental and radiological health hazards associated with previous mining operations in the study area. In this …
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(PDF) Geochemistry of Manganese Ore Deposits of Mn
last edition, in the high-carbon variant which can be sm elted directly from manganese ores, th e manganese grades between 78 and 82 percent, the iron is abo ut 12% – 15%, up to 7.5% carbon, up ...
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(PDF) Health Risk Assessment of Heavy Metals in
The range in soil was Pb (67.5 – 120), Cu (8.51 – 32.5), Cd (0.21 – 1.72), Zn (70.8 – 85.6), Cr (15.8 – 29.5), Mn (14.6 – 19.1) and As (52.0 – 198) mg/kg and in the vegetables in the ...
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Grade and Tonnage Comparison of Anthropogenic Raw Materials and Ores
Primary metal production operates with large tonnages and takes advantage of economies of scale. Metal recycled from low-value waste streams, competing in the same global metal market as primary production, will be more competitive by also taking advantage of up-scaling. However, an overview of metal tonnages in low-value waste …
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Ore-forming material sources of the Pb–Zn–(Ag–Fe–Cu) deposits …
The Longmala Pb–Zn–Fe–Cu deposit is situated in the central part of the NGPB (30°12′-30°15′N, 92°00′-92°02′E), in Jiali County (Table 1; Fig. 1 C). The deposit …
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Genesis and age of Pb−Zn mineralization from the Ningi-Burra …
The Nigerian Mesozoic anorogenic complexes cover an area 400 km and 160 km wide and intruded quartzofeldspatic Precambrian basement rocks (Fig. 1 a-b).Structural and geochronological studies (Rahaman et al., 1984) have shown that the emplacement of the Mesozoic anorogenic ring complexes of Nigeria was primarily controlled by N-S …
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HEAVY METAL CONTENTS OF ONDA TANTALITE MINING …
The mean level of the metals in the various locations along the highway varied between Ni (1.14mg/Kg and 1.92mg/Kg); Zn (2.48mg/Kg and 6.08mg/Kg);Mn …
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(PDF) Environmental Impacts of (Zn-Pb-Fe and Cu) Ore
The chemistry of waters from the Minei creek, which flows at the bottom of the quarry, indicates that the open pit produces acidic and heavy metal-rich (Pb, Cd, Fe, …
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Geology, mineralogy, and geochemistry of Naweoba and Bagh
In contrast, Cu-rich ores formed at higher temperatures and within the feeder zones of massive sulfide deposits usually exhibit extremely high Co contents, being clearly distinct from the volcanic-hosted Pb–Zn deposits (Bajwah et al. 1987). In general, pyrite in both volcanogenic and sedimentary deposits has more uniform Co and Ni levels …
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Baseline Studies of Some Heavy Metals in Top Soils around the …
The baseline concentration levels of cadmium(Cd), manganese(Mn), chromium(Cr), nickel(Ni), copper(Cu) zinc(Zn) and lead(Pb) were determined in the top soil around the iron ore deposit at Itakpe North Central Nigeria in order to define benchmark concentrations as a basis for future environmental monitoring and pollution control for …
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Effect of quarry activities on selected biological resources around
The mean concentration of the elements in the soil sample from Site 1 was higher in Mg, Cl, Ca, Ti, Cr, Mn, Fe, Zn and Zr than Site 2 and the control site, while in leaves, similar trend was observed. Quarry activities are creating diverse stress on biological resources in the rural areas where most of them are located globally. In this …
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Concentrations and chemical fractions of Cu, Zn, Cd, and Pb at …
Metal pollution in urban soils due to smelting and electroplating has become a severe problem in China. In this study, the concentration, chemical fraction, and leaching behavior of typical metals (Cu, Zn, Cd, and Pb) in soil samples from ten metallurgical sites were studied. The results show that some of the soils were polluted with Cu and most …
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Full article: Geochemical signatures of manganese ores around …
Co, Cu, V, Ni, Zn, and Ba are important trace elements to explain the genesis of manganese ores. On the plotting of discrimination diagram Cu+Ni vs Cu+Pb+V+ Zn ( …
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(PDF) Mineral Deposits and Exploration Potential of Nigeria
The iron ore potential map was validated using known iron ore mines and deposits, which showed a perfect correlation, and new sites of probable iron ore mineralization within north-central Nigeria ...
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Reducing Negative Effects of Oxidation on Flotation of Complex Cu–Zn
Surface oxidation of the sulfide minerals negatively affects the flotation performance, i.e., the selectivity and even the recoveries at heavy oxidation conditions. Oxidation may take place during the formation of the ore, during mining and stockpiling, and during the flotation process. Stockpiling of large amounts of ore is a common practice in …
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Heavy metals research in Nigeria: a review of studies and
The findings suggest that Cu, Pb and Zn were mostly contributed by fluvial deposition to the floodplains, whereas Cr and Fe determined in the soils were more of …
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(PDF) Solid Mineral Deposits and Mining in Nigeria:
In contrast, the mining sector in Nigeria, is virtually "non-existent", and only contributes about 0.5% to the country's GDP (0.01% from metals), and accounting for about 0.02% of mineral exports ...
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The Mineralogy of Iron and Manganese Ores of the Ushkatyn
Abstract The Ushkatyn-III in Central Kazakhstan is a weakly metamorphosed hydrothermal–sedimentary ore deposit of the Atasu type. For such objects, an assemblage of stratiform bodies of iron–manganese and polymetallic (lead–zinc and barite–lead) ores is typical. At the Ushkatyn-III deposit, there are iron, manganese, and barite–lead ores …
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Two-stage Cu
The Baoshan Cu Pb Zn deposit is one of the representative polymetallic deposits in the middle of the Nanling Range, the western part of the Qin–Hang ore belt. In order to better understand the magmatic activity (granodiorite porphyry and porphyritic granodiorite) and mineralization in the Baoshan deposit, in situ U Pb and Lu Hf isotope …
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Revealing the orogenic genesis of Huogeqi Cu-Pb-Zn deposit: …
The Huogeqi Cu-Pb-Zn: A case of orogenic-type base metal deposit. Studies in the past ten years have shown that the Huogeqi Cu-Pb-Zn deposit share broad …
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(PDF) Geochemistry of manganese-iron ores at Um Bogma area, …
Geochemistry of manganese-iron ores at Um Bogma area, west central Sinai, Egypt ... the high contents of Cu, Pb, Zn and Ni and the low contents of Al and Ti indicated that the Um Bogma manganese ...
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