Series-1 May-Jun-2019 Issue Statistics
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| Paper Type | : | Research Paper |
| Title | : | The Geochemical Contraints in the Origin of the Saiya-Shokobo Younger Granite Complex, Central Nigeria |
| Country | : | Nigeria |
| Authors | : | Aga, T. || Haruna, A. I. |
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: | 10.9790/0990-0703010107  |
Abstract: The Saiya-Shokobo Younger Granite Complex is one of the several anorogenic granite suite in central Nigeria which intruded the Basement Complex. The complex is found to comprise of felsic rocks like; rhyolite, biotite-granites, biotite micro granites, hornblende biotite granites and syenites. The complex is also found to be associated with mafic rocks like gabbroic diorites and diorites which, at some portions have formed hybrid rocks. Aegirine - arfvedsonite-, rebeckite- and quartz- feldspar- granites are the porphyritic rocks that form the ring complex. The rock.......
Keywords : A-type, Anorogenic, Granite, Saiya-Shokobo, Mineralization.
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| Paper Type | : | Research Paper |
| Title | : | Geotechnical Properties of Clay Soilsin Uyo Town, Eastern Niger Delta, Nigeria. |
| Country | : | Nigeria |
| Authors | : | Ehibor, Imo-Owo U. || Akpokodje, Enuvie G. || TseAkaha .C. |
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: | 10.9790/0990-0703010816 |
Abstract: This study investigates, the geotechnical and mineralogical properties of clay soils in Uyo town, for construction purposes. On the basis of the field and laboratory investigations, the general subsurface profile of Uyo town consists of silty clays from 0-3m, sandy clays, (3-15m) and sand from 10-20m.The silty clays in the upper clay horizon are firm with a low to intermediate plasticity and high cohesion values, while the sandy clays in the lower clay horizonalso consist of low to intermediate plasticity clays with high consolidation and cohesion values that are expected to yield relatively higher shear strength than the upper clays. X-raydiffraction analysis of the clays reveal the presence of kaolinite, quartz and trace amounts of goethite in the upper clays. Analysis of the foundation potentials using CPT results show that the silty clays in the upper clay horizon have low potentials while the underlying sandy clay horizon may be suitable for small and medium civil engineering structures.
Keywords : Gotechnical properties, mineralogy, clay soils, .X-ray diffraction, Kaolinite, Foundation.
[1]. Abam, T.S.K (2016): Engineering Geology of the Niger Delta,Journal of Earth Siences and Geotechnical Engineering, Vol. 6, no. 3, pp. 65-89.
[2]. Akhirevbulu O.E, Amadasun C.V.O, Ogunbajo M.I and Ujuanbi O. (2010): The Geology and Mineralogy of Clay Occurrences AroundKutigi Central Bida Basin, Nigeria. Ethopian Journal of Environmental studied and Management, vol 3, no. 3 pp 49-56.
[3]. Akpokodje, E.G (1986): The Engineering Geological Characteristics and Classification of the Major Superficial soils of the Niger Delta." Engineering Geology, Vol. 3, pp.193-211.
[4]. Avwenegha, E.O, Akpokodje E.G and Tse, A.C (2014) : Geotechnical Properties of Subsurface soils in Warri Western Niger Delta, Nigeria, Journal of Earth Sciences and Geotechnical Engineering, Vol. 4, no. 1, pp. 89-102.
[5]. Beka J.E and Udom, G.J (2014):Quality Status of Groundwater in AkwaIbom state, Nigeria.International Journal of Science Inventions Today, Vol. 3, no. 5, pp. 436-449.
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| Paper Type | : | Research Paper |
| Title | : | Caprock Integrity Analysis during Hydraulic Fracturing For Produced Water Disposal: A Case Study in Niger-Delta |
| Country | : | Nigeria |
| Authors | : | Charles Eme || Adewale Dosunmu || Francis Nweke || Godwin Udom || Chimaroke Anyanwu |
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: | 10.9790/0990-0703011724 |
Abstract: Caprock, or seal, provides a barrier to the migration of fluid or gas out of intended trap due to its low permeability, high capillary-entry pressure nature. The presence of discontinuities in seal Lithology affects
both their mechanical and hydrogeologic properties. Analysis of caprock is critical in determining the rock properties of the sealing formation with respect to the zone to be fractured. The induced deformations within the fractured zone of the formation can potentially result in a damage zone within the caprock formation. The main objective of this paper was to determine the strength of the caprock to withstand applied pressure within
the fractured zone. In order to achieve......
Keywords : Caprock Integrity, In-situ stresses, Hydraulic Fracture.
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laboratory test and numerical simulation. Energy Exploration & Exploitation, Volume 32 · Number 6 · 2014 pp. 943–964.
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