Series-1 (May-Jun-2019)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.
[1]. Castro, A., Moreno-Ventas, I. and de la Rosa, J.D. (1991): H-type (Hybrid) Granitoids: A proposed Revision of the Granite-type Classification and Nomenclature. Earth-Science Reviews 31, 237-253.
[2]. Collins, W. J., Beams, S.D., White, A.J.R.and Chappell, B.W. (1982): Nature and origin of A-type granites with particular reference to Southeastern Australia. Contributions to Mineralogy and Petrology. Vol. 80. Pp. 189-200.
[3]. Eby, G.N. and Kochhar, N. (1990): Geochemistry and Petrogenesis of the Malani Igneous Suite, North Peninsular India. Journal of Geological Society of India, Vol. 36. Pp. 109-130.
[4]. Frost, B. R., Barnes, C. G., Colins, W.J., Arculus, R.J., Ellis, D.J. and Frost C.D. (2001): A geochemical classification for granitic rocks. Journal of Petrology. Vol. 42. Pp. 2033-2048.
[5]. Kinnaird, J.A. (1985): Hydrothermal Alteration and Mineralization of the Alkaline Anorogenic Ring Complex of Nigeria. Journal of African Earth Science. Vol. 3. Pp. 229 – 251.
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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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051494-0.
[2]. Pawar, R. J., Bromhal, G., Carey, J. W., Foxall, B., Korre, A., Ringrose, P., Tucker, O., Watson, M., White, J. (2015): Recent
advances in risk assessment and risk management of geologic CO2 storage, International Journal of Greenhouse Control , 40,292–
311
[3]. Vavra C.L., Kaldi J.G. and Sneider R.M., (1992): Geological applications of capillarypressure: A review.The American Association
of Petroleum Geologists Bulletin76(6), 840-850
[4]. Zhixi, C., Fengde, Z., Sheikh S. Rahman (2014): Effect of cap rock thickness and permeability on geological storage of CO2:
laboratory test and numerical simulation. Energy Exploration & Exploitation, Volume 32 · Number 6 · 2014 pp. 943–964.
[5]. Aadnøy, B., Looyeh, R. (2011): Petroleum Rock Mechanics: Drilling Operations and Well Design, Boston, Gulf Professional
Publishing.
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| Paper Type | : | Research Paper |
| Title | : | Geological Conceptual Model of Olkaria Geothermal System |
| Country | : | Kenya |
| Authors | : | Monicah Kimonda Kibet || Paul K. Sang Magut || Jacques Varet |
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: | 10.9790/0990-0703012528 |
Abstract: Conceptual model of geothermal system is focused on geological and geophysical information, temperature and pressure data and geochemical content of reservoir fluids. The conceptual model explain the heat sources for the reservoir, the location of recharge zone as well as the main flow channels and patterns within reservoir. Geological conceptual models are mainly based on analysis of geological data. The method used to develop geological 3D model in this study, geological data was obtained with the permission of KenGen management, the data is imported into datasheet in rockworks software, and in borehole manager lithology model was chosen. Then lithology model appear on the screen, export the model to paints for editing and modifying other features............
[1]. Axelsson, G., Arnaldsson, A., Ármannsson, H., Árnason, K., Einarsson, G., Franzson, H., . . . Ouma, P. (2013). Updated conceptual
model and capacity estimates for the greater olkaria geothermal system, Kenya. Paper presented at the Thirty-Eighth Workshop on
Geothermal Reservoir Engineering, Stanford University.
[2]. Axelsson, G., Mortensen, A. K., & Franzson, H. (2013). Geothermal drilling targets and well siting. Paper presented at the Short
Course on Conceptual Modelling of Geothermal Systems, Santa Tecla, El Salvador.
[3]. KenGen. (2014). Stratighaphy logs for well OW-918 and OW-921A. Internal report.
[4]. Kibet, M. K., Magut, P. K. S., & Varet, J. (2019). Rock Types and Alteration Mineralogy Occurring In Olkaria Geothermal Field,
Kenya. IOSR Journal of Applied Geology and Geophysics. doi: 10.9790/0990-0701014757
[5]. Mannvit, ISOR, Vatnaskil, & Verkis. (2011). Consultant services for geothermal optimization study of the Greater Olkaria
Geothermal Fieds. (pp. 100). Reykjavik.