50 Aggregate Crushing Value (ACV) 45 40 35 30 25 20 15 ACV 10 5 0 Location Area Figure6 Aggregate Crushing Value (ACV) of the gravel samples obtained from the selected local Government 4.0 CONCLUSION Based on the results from the findings, the following conclusions were made: (i) The gravel mining sites in Osun State include those located at ...
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In placer gold mining, to reduce the pressure on the gold processing system below and to improve gold recovery, it is necessary to screen out the lumpy material from the raw ore in advance and to break up the mud clusters and lumps.Some materials are sticky and wet. River pebbles and oxidized gold ore are usually encased in the mud. This new soil/mud rock stone separating …
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Federal University of Tech; Minna, Nigeria Tel: 234-803-453-1271 E-mail: [email protected], [email protected] Abstract The paper examined sand and gravel mining activities both on land and the rivers as a business venture in Minna emirate council of Niger state, Nigeria.
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Near stream mining on the other hand has to do with mining gravel in river beds of areas that are dry. Both the in-stream and near stream method has to do with the use of draglines which are used to pull the material been mined. Gravel Mining Equipment. Power Shovel: power shovel in gravel mining is used for digging gravel banks for the purpose ...
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The paper examined sand and gravel mining activities both on land and the rivers as a business venture in Minna emirate council of Niger state, Nigeria. ... types and grades of labour and machines ...
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Mining in Nigeria was dated as far back as the eighteenth (18th) century according to [1]. Sand and gravel mining involves open-pit mining, strip mining and quarrying [11]. While open pit mining removes hill top soils creating large holes or pits, quarrying involves the extraction of ornamental stone blocks, or recovery of sand, gravel and ...
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PDF | On Oct 13, 2018, J A Ige and others published Characteristics of Concrete made with Gravel from Selected Mining Sites in Osun State, South-Western. Nigeria | Find, read and cite all the ...
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Mining in Ghana: Implications for national economic development and poverty reduction. International Development and Research Centre (IDRC), Canada. Ako TA, Onoduku US, Oke SA, Essien BI, Idris FN, Umar AN, Ahmed AA. Environmental effects of sand and gravel mining on land and soil in Luku, Minna, Niger State North Central Nigeria.
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The increase in the demand for sand and gravel for construction and other purposes such as flood control has placed immense pressure on the environment where sand and gravel resources occur. This study was carried out to determine the environmental effects of sand and gravel mining in Luku, North central Nigeria, using field observations and laboratory …
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Preliminary investigations were carried out in five selected states (Ogun, Oyo, Osun, Ondo and Ekiti) in Southwestern Nigeria to determine the registered gravel mining pits. Fifteen gravel mining pits based on age and …
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The sand/gravel mining activities in the emirate began to as sume an enormous dimension at the tail end of the last millennium when the civilian administration at the national level threw open the ...
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Lawal, P.O. (2011) Effects of Sand/Gravel Mining in Minna Emirate Area of Nigeria on Stakeholders. Journal of Sustainable Development, 4, 193-199. ... Nigeria. AUTHORS: Aroloye Ofo Numbere. KEYWORDS: Heavy Metals, Mangrove Weed, Soil, Species Diversity, Sand Fill, Swamp. JOURNAL NAME ...
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Ako et al. (2014) conducted a qualitative study assessing the impact of sand and gravel mining in Luku, North central Nigeria. They found concentrations of heavy metals such as lead, nickel, arsenic, cadmium, silver, copper and mercury in soil samples taken from mined locations that were (too) high.
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A., "Environmental Effects of Sand and Gravel Mining on Land and Soil in Luku, Minna, Niger State, North Central Nigeria." Journal of Geosciences and Geomatics, vol. 2, no. 2 (2014): 42-49. doi: 10.12691/jgg-2-2-1. 1. Introduction . Sand and gravel mining refers to the process of removing sand or gravel from a place of its occurrence [1].
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