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lead zinc mineralization of the benue trough

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Lead-Zinc-Barytes mineralization in the Benue Trough ...

The Benue Trough of Nigeria is a sedimentary basin that extends from the Gulf of Guinea in the southwest to the Chad Basin in the northwest for about 800 km in length and 150 km in width. Lead-zinc-barytes occurs in almost the entire length of the Benue Trough. Lead-zinc-barytes mineralization in the Trough is believed to be hydrothermal in

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Origin of lead-zinc mineralization in the southern Benue ...

01/03/1985  Origin of lead-zinc mineralization in the southern Benue Trough, Nigeria — Fluid inclusion and trace element studies . M. A. Olade 1 R. D. Morton 2 Mineralium Deposita volume 20, pages 76 – 80 (1985)Cite this article. 199 Accesses. Metrics details. Abstract. The epigenetic Pb-Zn deposits of the southern Benue Valley (Nigeria) are localized within Cretaceous sediments of an ...

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Genesis of the Lead -Zinc Mineralization, Upper Benue ...

Genesis Of The Lead -Zinc Mineralization, Upper Benue Trough, Nigeria, From The Perspective DOI: 10.9790/0990-0604025661 iosrjournals 58 Page Figure 3:shows Geology and Lead Zinc veins at Zurak In places, the formation could be differentiated into two end members- a basal weakly indurated conglomeratic ferruginised feldspathic unit overlain by a fine to medium argillaceous silty ...

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(PDF) Lead Isotopic Variation and Sources of the Lead in ...

PDF The Nigeria Benue Trough, an elongated sediment-filled rift initiated during the Cretaceous continental drifting and opening of the Atlantic Ocean... Find, read and cite all the research ...

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Lead-Zinc-Barytes mineralization in the Benue Trough ...

The Benue Trough of Nigeria is a sedimentary basin that extends from the Gulf of Guinea in the southwest to the Chad Basin in the northwest for about 800 km in length and 150 km in width. Lead-zinc-barytes occurs in almost the entire length of the Benue Trough. Lead-zinc-barytes mineralization in the Trough is believed to be hydrothermal in origin and is associated with brine springs.

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Exploration of Lead-Zinc (Pb-Zn) Mineralization Using Very ...

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 Ishiagu in the lower Benue Trough to Zurak in the upper Benue Trough, likewise the extent of igneous intrusions in the Benue Trough. Majority of the geologic and topographic features of the area align in the NW-SE direction, and conform to orientation of ...

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GEOLOGY AND MINERALISATION IN THE ALBIAN SEDIMENTS OF

BENUE TROUGH, NIGERIA Ogundipe I.E1* and Obasi R.A2 1 Department of Geology, Afe Babalola University, ABUAD, Ado-Ekiti. Ekiti State. 2Department of Geology, Ekiti State University, Ado-Ekiti, Ekiti State. ABSTRACT: The epigenetic lead-zinc-barite fluorite deposits of the Benue Trough are localized in N-S trending fractures developed within the lower Cretaceous Albian shales, limestone and ...

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Mineralogical, textural and paragenetic studies of the ...

01/01/1989  Lead zinc copper mineralization in the lower Benue Trough of Nigeria occurs as discordant fracture controlled veins within the Lower Cretaceous shales of the Asu River Group. Three stages of events are proposed for the evolution of the veins in this district: 1. (i) pre-ore fracturing and brecciation of Albian shales accompanied by the precipitation of framboidal and colloform aggregates

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Thermal and chemical variations of the Nigerian Benue ...

01/08/2017  The Benue trough is an intra-continental rift initiated in the Cretaceous during the opening of the South Atlantic Ocean. Lead-zinc-barite-fluorite mineralization occurs along the 600 km axis of the trough in three discrete sub-basins which coincide with the lower, middle and upper mineral districts of the Benue Valley.

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Structural controls of Pb-Zn mineralization of Enyigba ...

that lead-zinc mineralization in the Benue Trough is analogous to the Mississippi valley-type, and that ore forming fluids were connate brines, circulating under the influence of a deeper geothermal reservoir, as geothermal heat may be generated by plume activity which initiates a circulation of hot diagenetic pore fluid (connate water) or circulating through the sediments and evaporates via ...

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Lead-Zinc-Barytes mineralization in the Benue Trough ...

Lead-zinc-barytes occurs in almost the entire length of the Benue Trough. Lead-zinc-barytes mineralization in the Trough is believed to be hydrothermal in origin and is associated with brine springs. Fracturing and jointing are intense in the areas of mineralization. Leadzinc minerals in the form of their ores of galena and sphalerite respectively and barytes mineralization are often ...

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Origin of lead-zinc mineralization in the southern Benue ...

Introduction Lead-zinc mineralization is localized within a series of steeply dipping fractures and sheeted zones within sedi- The Benue Trough of Nigeria (Fig. 1) is a sediment-filled ments that are intruded by sills (Fig. 2). The mineralized intracratonic rift basin containing several lead-zinc, barite structures which generally trend N - S are usually" up to salt and fluorite deposits ...

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Origin of lead-zinc mineralization in the southern Benue ...

The epigenetic Pb-Zn deposits of the southern Benue Valley (Nigeria) are localized within Cretaceous sediments of an intracontinental rift basin. Fluid inclusion studies of vein minerals from the Abakaliki and Ishiagu orebodies show that sphalerite and quartz were deposited at relatively low temperatures (102–175 °C), with ore-fluid salinity mostly in the range of 17–25 equiv. wt% NaCl ...

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Model of Pb/Zn mineralization genesis in the Cretaceous ...

01/01/1990  The lead-zinc mineralization of the Benue Trough, distributed along the main anticlinal structures, forms a belt running for about 500 km. They occur in tensional submeridian fractureas resulting from the tectonic regime prevailing during the early stage of the Benue Trough infilling. The source of the mineralization is thought to be related to feldspar-rich series lying below the thick

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Discovery and Definition of Sedimentary Exhalative ...

The sedimentary exhalative lead-zinc-silver mineralization appears substantial and enhances considerably the resources of the metallic sulphides in the Benue Trough, Nigeria[i.e. combination of deposits of fracture/vein filling ore type and deposits related to the sedimentary exhalative mineralization] References Farrington J. L. 1952 Preliminary description of the Nigerian lead zinc

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Thermal and chemical variations of the Nigerian Benue ...

01/08/2017  The Benue trough is an intra-continental rift initiated in the Cretaceous during the opening of the South Atlantic Ocean. Lead-zinc-barite-fluorite mineralization occurs along the 600 km axis of the trough in three discrete sub-basins which coincide with the lower, middle and upper mineral districts of the Benue Valley.

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Mapping Geological Structures Controlling Mineralization ...

elongated conical hills in the cores of the anticlinal structures of the lower Benue Trough. The Abakaliki lead-zinc mineralization is believed to be of hydrothermal origin emplaced at a low temperature of about 1400 and it is made up of primarily four lodes namely Ishiagu, Enyigba, Ameri, Ameka in the lower Benue Trough (Kaliberng, 2011). Abstract: Magnetic Inversion (MI) and Analytic Signal ...

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Structural controls of Pb-Zn mineralization of Enyigba ...

Abakaliki anticlinorium in the Lower 4 Benue Trough. The occurrences of lead-zinc in the study area are associated with saline water intrusion in the sedimentary basin. Mineralization occurs along a narrow belt of approximately 30 to 50 km wide and extends for about 560 to 600 km length of the Benue trough in Adamawa, Taraba, Bauchi, Plateau, Nasarawa, Benue and Ebonyi States (Figure 2) (Umar ...

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lead zinc mineralization in nigeria -

The lead-zinc mineralization of the Benue Trough, distributed along the main anticlinal structures, forms a belt running for about 500 km. They occur in tensional ... Published in: Journal of African Earth Sciences 1990Authors: J C Maurin J BenkhelilAffiliation: University of MontpellierInquire Now; Geospatial Analysis of Lead Concentration in the Soil of ..... Lead-zinc occurrence ...

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STRUCTURE AND EVOLUTION OF THE BENUE TROUGH BY

•The absence of extensive volcanism in the Benue Trough can now be explained. Fitton(1980; 1983) and Fittonand James (1986) have shown that the Cameroon volcanic line (Fig. 3a) is a feature complimentary to the Benue Trough but without rift faulting even though its volcanic rocks have rift valley affinities. Its shape and size closely resembles

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Nigeria Geological Survey Agency – NGSA

Lead/Zinc mineralization in the Benue Trough (occur dominantly as open-space filling within en echelon tensional, steeply-dipping fracture systems, commonly astride anticlinal axes. The principal ore minerals are galena and sphalerite. Other metallic minerals include copper ores such as chalcopyrite, enargite, marcasite and tetrahedrite. These minerals occur in lodes and veins infilling open ...

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(PDF) ENVIRONMENTAL EFFECTS OF THE MINING OF

Abstract The effects of the mining of lead – zinc mineralization on the environment of Enyingba, Southern Benue trough were examined. The samples used for this study were obtained from abandoned mine sites. Collected samples were subjected to permeability test, X-ray diffraction, X-ray fluorescence tests and atomic absorption spectrometry tests. Analyses were done using standard laboratory ...

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Discovery and Definition of Sedimentary Exhalative ...

The sedimentary exhalative lead-zinc-silver mineralization appears substantial and enhances considerably the resources of the metallic sulphides in the Benue Trough, Nigeria[i.e. combination of deposits of fracture/vein filling ore type and deposits related to the sedimentary exhalative mineralization] References Farrington J. L. 1952 Preliminary description of the Nigerian lead zinc

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Abstract: LEAD-ZINC MINERALIZATION IN THE

The tectonic activities which led to the formation of the Benue Trough are believed to be responsible for the lead-zinc occurrence. The Benue Trough is believed to have originated as a failed arm of an aulacogen, and at the time of the separation of the South American and African plates. The Nigeria Benue Trough is subdivided into Upper-Benue Trough, Middle-Benue Trough, and Lower-Benue Trough ...

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Mineralogical, textural and paragenetic studies of the ...

Lead zinc copper mineralization in the lower Benue Trough of Nigeria occurs as discordant fracture controlled veins within the Lower Cretaceous shales of the Asu River Group. Three stages of events are proposed for the evolution of the veins in this district: (i) pre-ore fracturing and brecciation of Albian shales accompanied by the precipitation of framboidal and colloform aggregates of ...

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Exploration of Lead-Zinc (Pb-Zn) Mineralization Using

Abstract Exploration of Lead-Zinc (Pb-Zn) Mineralization Using Very Low Frequency Electromanetic (VLF-EM) in Ishiagu, Ebonyi State. Mbah Victor O, Onwuemesi AG, Aniwetalu and Emmanuel U. Very low frequency Electromagnetic (VLF-EM) exploration over the Ishiagu area of Abakaliki Basin, Lower Benue Trough, Nigeria was carried out to determine the Pb-Zn mineralization in the sedimentary

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Mapping Geological Structures Controlling Mineralization ...

elongated conical hills in the cores of the anticlinal structures of the lower Benue Trough. The Abakaliki lead-zinc mineralization is believed to be of hydrothermal origin emplaced at a low temperature of about 1400 and it is made up of primarily four lodes namely Ishiagu, Enyigba, Ameri, Ameka in the lower Benue Trough (Kaliberng, 2011). Abstract: Magnetic Inversion (MI) and Analytic Signal ...

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Structural controls of Pb-Zn mineralization of Enyigba ...

Abakaliki anticlinorium in the Lower 4 Benue Trough. The occurrences of lead-zinc in the study area are associated with saline water intrusion in the sedimentary basin. Mineralization occurs along a narrow belt of approximately 30 to 50 km wide and extends for about 560 to 600 km length of the Benue trough in Adamawa, Taraba, Bauchi, Plateau, Nasarawa, Benue and Ebonyi States (Figure 2) (Umar ...

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Assessment of Cadmium and Lead Distribution in the

Although few studies have been reported on the lead–zinc mineralization in the Southern Benue Trough [27, 31, 35, 40, 41], there is paucity of information on cadmium and lead distribution in the outcrop rocks of Southern Benue Trough of Nigeria. Therefore, monitoring and assessment of heavy metals concentrations in the environment contribute towards effective understanding of

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STRUCTURE AND EVOLUTION OF THE BENUE TROUGH BY

•The absence of extensive volcanism in the Benue Trough can now be explained. Fitton(1980; 1983) and Fittonand James (1986) have shown that the Cameroon volcanic line (Fig. 3a) is a feature complimentary to the Benue Trough but without rift faulting even though its volcanic rocks have rift valley affinities. Its shape and size closely resembles

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