high levels of these toxic elements such as Pb, Zn, Cu, Cd, As, Hg, V, Co, Cr etc have been reported in most ... iodine is restricted to the crystalline Basement rock areas. ... Galena Mining at ...
In Nigeria, occurrence of baryte deposits have been reported in several locations within the NE-SW trending Cretaceous Benue Trough (Akande and Abimbola, 1987, Akande et al., 1989, Oden, 2012, El-Nafaty, 2015) (Fig. 1).The distribution and structural control of the deposits like the PbS-ZnS-flourite mineralization have been …
The techniques of aeromagnetic data analysis were employed to elucidate depth to magnetic basement sources, lead-zinc (pb-zn) mineralisation and heat flow in parts of Southern Benue Trough.
Mining activities have been undertaken for over 95 years in Enyigba area of southeastern Nigeria. In this area, thirty-six (36) trace metals including those that are essential for plant and animal nutrition have been analyzed from forty-nine (49) soil samples that were collected from three Pb-Zn mines. The aim of the analysis is to assess the …
Fracture Orientation Significance in the Study of Pb-Zn Mineralization of Lower Benue Trough, Abakaliki Se Nigeria. Jacob Obarezi. Journal of Geography, Environment and …
The concentrations of Pb, Zn, Fe, Cu, Cr and Ni varied between 0–678, 7–222, 1.64–8.87, 8.8–145, 1.4–81 and ... active mining site in southwestern Nigeria. It was ... basement complex ...
The Ningi-Burra Pb−Zn mineralization forms part of the Nigerian Sn-Nb ± (Pb-Zn-Mo)-rich anorogenic alkaline province, also known as the Nigerian Younger …
Structural controls of Pb-Zn mineralization of Enyigba district, Abakaliki, Southeastern Nigeria. Obarezi J. E.* and Nwosu J. I. Department of Geology, Faculty of Physical …
Lead, zinc, and associated minerals have been mined in the Enyigba, Nigeria area for over 92 years, leaving accumulated sulphide dumps and contaminated mine water. Stream sediment, mine tailings, mine water, stream water, and groundwater were sampled and analysed to determine the sources of potentially harmful elements in domestic water. The …
Economic minerals, such as Pb–Zn deposits, limestone, barite, coal, etc., are common in Ebonyi state, which is part of the Benue Trough in Nigeria. Generally, the …
The most important characteristics of MVT lead-zinc deposits (Leach and Sangster, 1993) are: (1) most deposits are in dolostone, less commonly in limestone or sandstone, (2) ore is epigenetic and stratabound, (3) deposits are not associated with igneous activity, (4) deposits are at shallow depths at flanks of basins, (5) deposits are in ...
Comparison plots of 207 Pb/ 204 Pb vs. 206 Pb/ 204 Pb (a) and 208 Pb/ 204 Pb vs. 206 Pb/ 204 Pb (b) among Pb-Zn deposits, basement rocks and associated …
Kuma Joshua Ayua. PDF | The polycyclic basement rocks of Nigeria have been the subject of several isolated and local studies. Despite the huge amount of studies on the... | Find, read and cite all ...
216 Geochemical and Mineralogical Studies of Kaolinitic Clays in P arts of Ilorin, Southwestern Base ment Rock Area, Nigeria content. [18, 24] h ave proposed that quartz (S iO 2 ) may occur
The Ningi-Burra Pb−Zn mineralization forms part of the Nigerian Sn-Nb ± (Pb-Zn-Mo)-rich anorogenic alkaline province, also known as the Nigerian Younger Granite Complexes. Six distinct E -W trending magmatic centres have been identified in the Ningi-Burra complex, but the Pb−Zn mineralization is confined to highly evolved biotite granite ...
The Dahai Pb-Zn mining area is located in the northwestern Pb-Zn district in northeastern Yunnan Province in the Sichuan-Yunnan-Guizhou Pb-Zn metallogenic triangle (SYGT), east of the Xiaojiang fault. Numerous Pb-Zn deposits (spots) occur in clastic rocks in this area. In this study, the Maliping, Laoyingqing, and Jinniuchang Pb-Zn …
The Ningi-Burra Pb−Zn mineralization forms part of the Nigerian Sn-Nb ± (Pb-Zn-Mo)-rich anorogenic alkaline province, also known as the Nigerian Younger Granite Complexes. Six distinct E -W trending magmatic centres have been identified in the Ningi-Burra complex, but the Pb−Zn mineralization is confined to highly evolved biotite granite ...
that Nigeria has over 10,000,000 tons of lead ore deposits with sulphide galena (PbS) dominating other ores. Ebonyi State is one of the States in Nigeria that is endowed with solid minerals including lead ores. Unregulated mining in Ebonyi State started with the mining of lead-zinc (Pb-Zn) ore in
The Beishan Pb–Zn deposit is located 47 km northwest of Huanjiang County, north of Hechi City, Guangxi (Fig. 1 a, b), and includes several mineralized occurrences developed in mining areas, such as Shangchao, Huada, and Caixiu.The Beishan Pb–Zn deposit has a history of discovering native siderite when searching for Fe mineralization …
underlying basement rock and (2) ssured bedrock brought about by widespread cracking and slightly localized weath-ering of underlying crystalline substratum. The ssured bedrocks of the crystalline basement terrain of north-central Nigeria have been described as characterized by near-ver-tical to near-horizontal fracture sets placed alongside each
The Abakaliki Lead–Zinc province is associated with four lodes, namely Ishiagu, Enyigba, Ameri and Ameka, as documented by the Nigerian Geological Survey Agency. Speculative mining activities in between and outside these lodes often result in abrupt termination of ore veins. The present study is at Ukawu, between the Ishiagu and …
The Pb-Zn mining site in Enyigba area, which is geologically located within the lower Benue rift in south- eastern Nigeria and politically, in Ebonyi state of Nigeria,
The Liangyan Zn–Pb deposit, located on the southwestern margin of the Yangtze Platform, is a carbonate–hosted Zn–Pb deposit. The deposit contains over 45.4 thousand tons of ore containing Pb + Zn metals at a grade of 5.95 % Zn and 2.18 % Pb. The in-situ trace element analysis of sphalerite from this deposit was carried out by …
The Nigeria basement complex is part of the Upper Proterozoic Pan-African mobile belt, located between the West African and Congo Cratons and south of the Tuareg Shield (figure 1).The Pan-African reactivated mobile belt extends from Algiers across southern Sahara into Nigeria, Benin and Cameroon to northeastern Brazil, where …
62 The Geology And Polymetallic Pb-Zn, Fe And Associated Mineralization In Parts Of Tsauni And Environs, North Central Nigeria Ekeleme, I.A.1, Uzoegbu, M.U.2*, Haruna, A.I.3 and Ochiba, I.E.4 1,4Department of Geology and Mining, University of Jos, Jos, Nigeria 2Department of Geology, University of Port Harcourt, Port Harcourt, Nigeria …
Zn and Cu concentrations may be low and high in soil and water around barite mining sites and gold mining sites, as reported in the literature [20, 26,90,91]. Thus, the zinc and copper ...
Introduction. Baryte is an important industrial mineral which commonly occurs as gangue in most metallic (Fe, Pb, Zn, Cu, Ag, Au) ore deposits. Occurrences of baryte deposits have been recorded in diverse geological environments such as igneous, metamorphic and sedimentary rocks of Early Archean to Late Phanerozoic (Hanor, 2000).
In the δ 66 Zn JMC vs. Cd/Zn plot (Fig. 8), the Maoping sphalerite samples fall along a steep linear trend (r 2 = 0.66) between the basement rocks and carbonate wallrocks, suggesting that the narrow sphalerite Zn-Cd isotopic ranges can be ascribed to binary fluid mixing, including a high δ 66 Zn–low Cd/Zn end-member and a low δ 66 Zn ...
The result in Iran's Pb–Zn mining region revealed that Cd and Pb concentrations were higher than the background levels, while Vuong et al. reported a high level of contamination in an active Pb–Zn mine in Vietnam. In Enyigba, Nigeria, Obasi and Akudinobi reported severe Cd, Cu, Pb, and Zn contamination of cropland near a Pb–Zn …
Water quality status of drinking water with respect to seven heavy metals (As, Cd, Cr, Hg, Mn, Pb, and Zn) in the mining area of Riruwai, Kano State, Nigeria was investigated using the heavy metal ...
19 Citations. Explore all metrics. Abstract. The environmental effects of the mining of lead–zinc mineralization in Enyigba area, Southern Benue trough were …