Petrography, geochemistry and origin of banded iron-formation of the Kazaure schist belt, northwestern Nigeria

Ibrahim, Aliyu Abdu

doi:10.4314/jmg.v44i1.18880

Cited by 2 publications

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“…The geochemical results are presented in Tables 1, 2, & 4. The total Fe as (Fe2O3) of the FMP (Table 1) ranges from 14.58 -82.8 %, this value is comparable to the Itakpe iron ore deposit, and is much different from the iron content of the BIF body in the same schist belt (Elueze, 2000;Ibrahim, 2008). Some samples have excessively high iron content (TQ1 & TQ4/2); these are the massive ferruginised schists, while samples with smaller iron content (TQ2/1 and TQ6/1) are the vein filling type of ore.…”

Section: Geochemistrymentioning

confidence: 92%

“…McCurry, 1976;Ajibade, 1976;Holt et al, 1978). In addition, banded iron formation (BIF) has been used by Adekoya (1993;1996), Ibrahim (2003), Mucke et al, (1996) Ibrahim, (2008 to describe those banded and chert-bearing iron deposits in the metasedimentary belts of northwestern Nigeria with a high silica-iron minerals ratio. The employed term has genetic importance because it indicates the nature of the primary silicate minerals.…”

Section: Introductionmentioning

confidence: 99%

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Ferruginised metapelites of the Kazaure Schist belt, northwestern Nigeria

Ibrahim¹

2019

Nig J Bas App Sci

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Field, petrographic and geochemical evidence shows the occurrence of ferruginised metapelites (FMP) in the Kazaure Schist Belt (KZSB). The KZSB consists predominantly of quartzites, pelitic metasediments, and metaconglomerates. Minor rocks includes metavolcanics and iron formations (Banded Iron Formation and ferruginised metapelites). The FMP occurs as narrow bands associated with quartzites and phyllites. Magnetite as euhedral to subhedral crystals together with subordinate anhedral hematite forms the Fe band. The Fe content of the FMP (14.54-82.8 %) is comparable to that of banded iron formations in the schist belt. It contains lesser amounts of Mn (0.07-17.83 %), Ca (0.067-1.25%), and the lithophile elements average values: K (1.21 ppm); Rb (89.89 ppm); Sr (190.78 ppm). It is envisaged that the FMP developed from the alteration of the metasediments entrapped as a kind of tectonic mélange as a result of late tectonic brittle deformation and activity of fluids rich in iron.

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Section: Geochemistrymentioning

confidence: 92%

Section: Introductionmentioning

confidence: 99%

Ferruginised metapelites of the Kazaure Schist belt, northwestern Nigeria

Ibrahim¹

2019

Nig J Bas App Sci

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“…Also, most of the NW Nigeria schist belts that have been studied are polymetallic and are endowed with mineralization such as gold [6,7,8], Banded Iron Formation [9,10], marble [10], manganese [12,13] etc associated with them. The Wonaka Schist Belt will probably not be an exception; hence the need for its detailed study.…”

Section: Introductionmentioning

confidence: 99%