Mineralogical, Geochemical, Physical And Industrial Potentials Of Shale From Okada Area, Southwestern, Nigeria

Obrike, Stephen E.; Osadebe, Charles Chuka; Onyeobi, T.U.S.

doi:10.4314/jmg.v43i2.18870

Cited by 3 publications

(3 citation statements)

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“…Several investigators reported the geology, stratigraphy and economic potentials of the Lower Benue Trough (Simpson, 1954;Reyment, 1965;Agumanu, 1989;Akande et al, 1989Akande et al, , 1992Uma, 1998;Zarborski, 1998 Clay occurrences vary from the lateritic and residual profiles derived from the weathering of basement rocks Bolarinwa, 1995, 2001;Nton and Elueze, 2005) to those of the sedimentary units and alluvial bodies within the various depositional basins and along the major fluvial channels (Emofurieta et al, 1994, Elueze et al, 1999Imeokparia and Onyeobi, 2007;Obrike et al, 2007). Despite these studies, the chemical and mineralogical compositions of some of the clay sediments and their sources are still poorly understood.…”

Section: Introductionmentioning

confidence: 97%

Mineralogical, chemical composition and distribution of rare earth elements in clay-rich sediments from Southeastern Nigeria

Odoma

Obaje

Omada

et al. 2015

Journal of African Earth Sciences

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Section: Introductionmentioning

confidence: 97%

Mineralogical, chemical composition and distribution of rare earth elements in clay-rich sediments from Southeastern Nigeria

Odoma

Obaje

Omada

et al. 2015

Journal of African Earth Sciences

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“…The prominent peaks are recorded as 2θ= 25.13, 23.99, 24.35, 26.62, 25.07, 25.20, and 22.87. The prominent peaks can be used to identify the composition of moderate to well crystalline materials [23] . The mineralogy of the Edda clays r evealed that the clays are generally non-expansive.…”

Section: X-ray Diffraction (Xrd)mentioning

confidence: 99%

Mineralogical and Geochemiccal Assessment of Edda Clays for Possible Use in the Ceramics Industry,Afikpo Sub-Basin,Nigeria

et al. 2021

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Clay samples from selected part of Edda were analyzed to identify the clay mineral types present, their chemical and physical properties with a view to appraising their industrial suitability as ceramic materials. The mineralogical and geochemical analyses were done using the principles of X-Ray diffraction and X-ray fluorescence respectively. A total of seven clay samples were used for the study, other tests such as plasticity, bulk density, shrinkage, loss on ignition (LOI) and water absorption capacity was carried out to determine the amount of water absorbed under specified conditions. The basic industrial properties assessment showed that more than 70% of the clays are fine-grained. The clays exhibited low to moderate plasticity, moderate shrinkage and bulk density, low to moderate values of both loss on ignition and water absorption capacity. The clays are buff to yellowish in colour. The results of x-ray fluorescence revealed that the mean concentration of major oxide in the clays is shown as follows: SiO2 (62.78%), Al2O3 (20.25%), total Fe (6.09%), CaO (0.56%), MgO (3.21%), Na2O (0.47%), K2O, (1.44%) and TiO2 (0.52%). The samples have high silica content, low alumina and low oxide content. The results of x-ray diffraction revealed that kaolinite is the dominant clay mineral with illite and montmorillonite occurring in subordinate amounts, while quartz and feldspar are the non-clay components present. The characteristics of the clays for each parameter were compared with industrial standards. These properties are appropriate for the Afikpo clays to be useful in the manufacturing of ceramics. However, since the silica content of the clays is high further beneficiation is recommended.

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“…Prominent basal reflections, strong and sharp peaks are indicators of moderate to well-formed crystalline mineral components (Jubril and Amajor, 1991;Obrike et al, 2007). Some of the samples studied (e.g.…”

Section: Mineralogymentioning

confidence: 99%

Mineralogical and geochemical properties of clay deposits in parts of Southeastern Nigeria

Onyekuru¹,

Iwuoha²,

Iwuagwu³

et al. 2018

Int. J. Phys. Sci.

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The rocks underlying many parts of Southeastern Nigeria had undergone extensive alterations to form considerable clay deposits. The mineralogical compositions of some of these clay deposits were evaluated with the X-Ray Diffraction (XRD) method to ascertain the suitability of the deposits as raw materials. Results of the analyses indicated that kaolinite (Al 2 Si 2 O 5 (OH) 4 ) is the dominant clay mineral. Traces of bentonite and dickite were also observed, while the identified non-clay minerals were quartz and iron. Chemical analysis of the clays revealed the predominance of SiO 2 , Al 2 O 3 , Fe 2 O 3 and TiO with values ranging from 31.70 to 56.45%, 19.30 to 29.30%, 3.11 to 29.42% and 2.21 to 7.04%, respectively, while the compositions of CaO, MgO, Na 2 O, and MnO in the analyzed samples were relatively lower with values ranging from 0.19 to 0.29%, 0.13 to 0.19%, 0.11 to 0.70% and 0.01 to 0.03%, respectively. The Al 2 O 3 /TiO 2 ratio (3.7 to 13.5) of the studied clays indicated a mafic to intermediate igneous rock origin. Binary plots of TiO 2 versus Al 2 O 3 to distinguish between granitic and basaltic sourced clays indicated basalt-rhyolite/granite provenances. The high chemical index of alteration (95.8%), chemical index of weathering (98.3%) and low contents of alkali and alkali earth elements (averaging 0.11%) of the clayrich sediments, is indicative of a relatively intense weathering source area. The SiO 2 -K 2 O/Na 2 O plots suggested that the sediments in the study area were deposited between passive and active continental margins. In comparison with other reference clays and standard specifications, the clay deposits in the study area possess characteristics satisfactory for economic and some engineering purposes.

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Mineralogical, Geochemical, Physical And Industrial Potentials Of Shale From Okada Area, Southwestern, Nigeria

Cited by 3 publications

References 0 publications

Mineralogical, chemical composition and distribution of rare earth elements in clay-rich sediments from Southeastern Nigeria

Mineralogical, chemical composition and distribution of rare earth elements in clay-rich sediments from Southeastern Nigeria

Mineralogical and Geochemiccal Assessment of Edda Clays for Possible Use in the Ceramics Industry,Afikpo Sub-Basin,Nigeria

Mineralogical and geochemical properties of clay deposits in parts of Southeastern Nigeria

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