In this study, eight (8) homogenous soil samples were collected from mining sites in Enyigba, Ameri and Ishiagu in Ebonyi State, southeastern Nigeria and analyzed for Pb, Zn, Ni, Co, Mn, and Ag ...
Igwe et al. were of the view that within the Oshiri-Ishiagu axis, open-pit mining is practiced, with the subsequent removal of topsoil and overburden, as well as blasting of ore, drilling, and transportation of mined Pb–Zn by haul trucks and excavators. Mining process has been known to generate two byproducts: waste rocks (non-mineralized or ...
The country data given in Table 4 indicates that the country with the largest Pb-Zn resources is Australia at 59.5–95.4 Mt Pb-Zn, followed by Russia with 28.0–62.9 Mt Pb-Zn, Canada with 22.8–76.8 Mt Pb-Zn and Peru at 11.7–52.7 Mt Pb-Zn, although Peru also has substantial Cu within their Pb-Zn resources at 39.7 Mt Cu (Canada and ...
Open-pit mining involves the excavation of large quantities of waste rock in order to extract the desired mineral ore. This was the predominant mining method employed in the extraction of …
This research assesses the distribution of Pb, Zn, Cu, Cd, Co and Ni in soils in Ishiagu. Mining has become prominent in this area because of existence of Pb – Zn lodes, veins and veinlets. It has thus become necessary to assess these because these metals are associated with Pb-Zn mineralization and
The Pb-Zn mineralization is restricted to a series of closely spaced, steeply dipping subparallel fractures which trend NW-SE and typically form en-echelon patterns.
Lead-zinc (Pb-Zn) sulphide mining activities in the Ishiagu area in the lower Benue Trough, southeastern Nigeria have a potential significant impact on the quality of soil and water …
This study summarizes findings of researches in active/abandoned lead–zinc mines in Enyigba and Ishiagu mining districts including social surveys in the localities surrounding the mines in order to ascertain the effects on the inhabitants. ... (2016) Heavy metals and health risk assessment of arable soils and food crops around Pb-Zn mining ...
Download scientific diagram | Geology Map of Ishiagu area showing sampled points (Modified from Ezepue, 1984). from publication: Assessment of selected metal levels in Ishiagu Pb-Zn mine district ...
DOI: 10.4314/GJPAS.V25I1.15 Corpus ID: 164241253; Assessment of selected metal levels in Ishiagu Pb-Zn mine district soils and Oryza sativa, southeast, Nigeria @article{Chukwu2019AssessmentOS, title={Assessment of selected metal levels in Ishiagu Pb-Zn mine district soils and Oryza sativa, southeast, Nigeria}, author={E. C. Chukwu and O. L. Anike …
Potentially toxic metals concentration and pollution in mining areas have become a major environmental concern. Predicting the toxic metals (Pb, Cd, Ni, Co, Zn, Mn, Fe, and Cu) in waste rocks and ...
While the salt lake at Okposi is the main source of brine intrusion in the study area, the Pb/Zn mine at Ishiagu is the main source of mine-water pollution in the study area. Most chemical parameters, (especially Cl -, Na +, Ca 2+, Mg 2+, SO 4 2-, HCO 3 - ) maintain high concentrations within the salt lake area, with the values de clin ing ...
The Pb-Zn deposits in Ishiagu area appear to be the southern limit of mineralization in the Benue Trough and the Pb-Zn mineralized zone extends over a distance of 500 km in a narrow belt from ...
This study summarizes findings of researches in active/abandoned lead–zinc mines in Enyigba and Ishiagu mining districts including social surveys in the localities surrounding the mines in order to ascertain the effects on the inhabitants. ... water, and plants contamination by Pb, Zn, Cd, and Mn in these mining communities. The mining ...
This Study was carried out to evaluate potentially toxic metals enrichment, pollution and potential ecological risk in the soils of Ishiagu. The concentrations of Cadmium (Cd), Chromium (Cr), Cobalt (Co), Copper (Cu), Lead (Pb), Manganese (Mn), Nickel (Ni), Zinc (Zn), Aluminum (Al) and Iron (Fe) in soil samples from the area were analyzed by Bureau Veritas Laboratory, …
The Ishiagu area is a water scarce region and has played host to mining activities for more than four decades. Mining-related activities have become a threat to potable water supply in the area.
The soil enrichment varied considerably between mining and non-mining areas with mining area being extremely enriched with Pb, Zn and Cd, and significantly enriched with Co, Cu, Ni and …
This study assessed the concentrations of potentially harmful elements (Cu, Pb, Zn, Mo, Ni, Co, Cd, Cr, Mn and As) in agricultural soils and plants (tubers, fruity and leafy vegetables) and their possible health risk implications on human in the lead-zinc mining districts of …
(2005), three Pb–Zn mines were investigated and the results showed signicant levels of Cd, Cu, Pb, and Zn in mine tail- ... Ishiagu mining districts. 2 Location and Geologic Setting
The outstanding motivations that anticipated debates on the extension of these Ishiagu mineralized fractures as gotten from previous researches and already developed mines are attributed to the facts that: 1) There is a close relationship between the Pb-Zn mineralization and the structural features in Ishiagu; 2) The fractures normally fade out ...
This study determined the heavy metals concentration in arable soils and associated food crops around the Pb–Zn mines in Enyigba, Nigeria, and metal transfer factors were calculated. Air-dried samples of the soils and food crops were analyzed for 8 known nutritional and toxic heavy metals by Inductively Coupled Plasma - Mass Spectrometer (ICP-MS) method.
Ishiagu is an important mining district in southeastern Nigeria with Pb-Zn ore mining dating back to the early 1960s [10]. The ore, which is mined by opencast method, generates huge mine …
from ishiagu lead/ zinc (Pb/Zn) mine as an index for alkaline classification of the mine dr ainage. Journal of. Applied Science and Environmental Manag ement, 11 (4), 19-24.
Heavy metals and health risk assessment of arable soils and food crops around Pb–Zn mining localities in Enyigba, southeastern Nigeria. smart C obiora ...
Semantic Scholar extracted view of "Heavy metals and health risk assessment of arable soils and food crops around Pb–Zn mining localities in Enyigba, southeastern Nigeria" by S. Obiora et al. ... Potentially harmful elements and their health implications in cultivable soils and food crops around lead-zinc mines in Ishiagu, Southeastern ...
Lead-zinc (Pb-Zn) sulphide mining activities in the Ishiagu area in the lower Benue T rough, southeastern Nigeria have a potential significant impact on the quality of soil and …
This research assesses the distribution of Pb, Zn, Cu, Cd, Co and Ni in soils in Ishiagu. Mining has become prominent in this area because of existence of Pb – Zn lodes, veins and veinlets. ... the mine dumps, the Asu River Shales and the minor basic intrusive. Mining of the Pb-Zn ores is responsible for the mobilisation of these metals into ...
Co, Cr, Ni, Pb and Zn show deficiency to minimal enrichment while Cd recorded very high enrichment 23.95-37.48 and 25.66-34.21 mk/kg in the Oshiri and Ishiagu areas respectively.
The results showed that Ishiagu Pb/Zn mine is slightly acidic with moderate levels of dissolved metal constituents. Seasonal variation observed in the parameters indicate higher levels for pH (6.7 ...
thus the major source of Pb-Zn ore in Ishiagu, Ebonyi state, Nigeria. There is therefore the need for a suitable geophysical method of exploration for easy extension of the known zones of mineralized fractures in Ishiagu, so as to create a well lucrative and …
The nature and chemical composition of mine pit-water was investigated in Ishiagu lead/zinc (Pb/Zn) mine in southeastern, Nigeria. Laboratory determination of some physicochemical parameters namely, temperature, total dissolved solids (TDS),
Unregulated mining in Ebonyi State started with the mining of lead-zinc (Pb-Zn) ore in 1925 (2) and since then Pb mining has progressed tremendously because of its high demand. ... mine were selected from Ebonyi North while Ohankwu mine and Ishiagu mine were selected from Ebonyi Central and Ebonyi South respectively (Figure 3). Figure 1: Miners ...
The effects of mine water from Pb and Zn mines on agricultural soil in Ishiagu, Ebonyi State, Nigeria was investigated using standard analytical methods. The soil was observed to be acidic with loss of SO4 PO4 NO3 and total organic matter (TOM) with
Pb in soil at various distance and depths was assessed at Pb and Zn mining site in Ishiagu Ebonyi State, Nigeria to determine the furthest distance travelled so far and the concentration at the ...
zinc (Pb-Zn) sulphide mining activities in the Ishiagu area in the lower Benue Trough, southeastern Nigeria have a potential significant impact on the quality of soil and water resources and, by extension, animal health and agricultural produce within the environment. Mining activities date back to the 1960s (NGSA, 2010).
The AmalHE Pb-Zn deposits at Ishiagu in the Imo State of gamated Tin Mines of Nigeria Ltd. drilled several holes Nigeria are located in the southwestern tip of the in the area between 1949 and 1952 to determine ore Abakaliki anticlinorium (Fig. …
The well documented Pb-Zn-Ba deposits of the Benue Trough are in the southern Benue. Four mineralized areas have been reported, which includes the Abakaliki, Ishiagu, Wanikande-Wanakom and Gabu-Oshina (Fig. 3; Andrew-Oha et al., 2017). The Abakaliki Pb-Zn deposit is the largest and consists of three lodes (Enyigba, Ameri and Ameka; Fig. 3, Fig. 4).
In the entire basin, the only wells apart from those in the discharge areas of the mines with any significant traces of heavy metal contamination are wells located along the anticlinal/thrust axis of the fold/fault axis around Lokpaukwu, Ayaragu and Amita-Lekwesi mines. This is a clear indication that Pb-Zn mineralization may extend up to the ...
We examined availability of metals by subjecting soil and rice plant samples from Ishiagu mining district to a sequential extraction procedure and subsequently analyzed the …