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| Paper Type | : | Research Paper |
| Title | : | Overpressure/ Depositional Analysis of Parts of Onshore (X-Field) Niger Delta Basin Nigeria, Based on Well Logs Data |
| Country | : | Nigeria |
| Authors | : | Obi, D. A || George, A.M || Ofem, L. O. |
Abstract: In addition to ground magnetic survey carried out in the study area to appraise its hydrocarbon potentials, three aeromagnetic maps on a scale 1:100,000 covering part of Ikom Embayment and Lower Benue Trough were manually digitized and analysed using computer-based programmes such as Hdep, Surfit, Mfinite, Mffilter, Mfdesign, Jmerger, Frtp, Pc Contour, P2 Grid, Oasis Montaj, Geocon And Surfer 9.0 to determine thedepth to basement as well as the configuration of the sub-basins within the study area. The average depth of the shallow and deep basins is 1.5Km and 2.5Km respectively with Nkum axis of the Ikom Embayment having the thickest sediments (about 4.0Km). The presence of few intrusives, thick pile of sediments and faults around Nkum- Edor area of Ikom Embayment indicates that they may have good prospects for hydrocarbon accumulation.
[1]. Akande, S. O., Eghenhoff, S. W., Obaje, N. G. and Erdtmann, B. D. (2011). Stratigraphic evolution and petroleum potentials of Middle Cretaceous sediments in Lower and Middle Benue Trough. Petroleum Technology Development Journal 1, pp. 1-34.-
[2]. Akani-Hamed, J. (1988). Differential reduction to the pole of regional magnetic anomalies. Geophysics 53 (12), pp. 1592-1600.
[3]. Coulon, C., Vidal, P., Dupuy, C., Baudin, Popoff, M. Maluski, H. and Hermitte, D. (1996). The Mesozoic to Early Cenozoic Magmatism of the Benue Trough (Nigeria); Geochemical Evidence for the Involvement of the St Helena Plume. Journal of Petrology37 (6), pp. 1341–1358.
[4]. Dobrin, M. B and Savit, C. H. (1988). Introduction to geophysical prospecting (4th Ed.). Newyork: McGraw-Hill Book Company.
[5]. Fairhead, J. D. and Okereke, C. S. (1990). Crustal thinning and extension beneath the Benue Trough based on gravity studies. Journal of African Earth Sciences. 11 (3/4), pp.329-355.
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| Paper Type | : | Research Paper |
| Title | : | Application of Ground and Aeromagnetics as Reconnaissance tool for Hydrocarbon Exploration in Part of Ikom Embayment and Lower Benue Trough, Nigeria |
| Country | : | Nigeria |
| Authors | : | E. Ibor || D. A. Obi |
Abstract: In addition to ground magnetic survey carried out in the study area to appraise its hydrocarbon potentials, three aeromagnetic maps on a scale 1:100,000 covering part of Ikom Embayment and Lower Benue Trough were manually digitized and analysed using computer-based programmes such as Hdep, Surfit, Mfinite, Mffilter, Mfdesign, Jmerger, Frtp, Pc Contour, P2 Grid, Oasis Montaj, Geocon And Surfer 9.0 to determine thedepth to basement as well as the configuration of the sub-basins within the study area. The average depth of the shallow and deep basins is 1.5Km and 2.5Km respectively with Nkum axis of the Ikom Embayment having the thickest sediments (about 4.0Km). The presence of few intrusives, thick pile of sediments and faults around Nkum- Edor area of Ikom Embayment indicates that they may have good prospects for hydrocarbon accumulation.
[1]. Akande, S. O., Eghenhoff, S. W., Obaje, N. G. and Erdtmann, B. D. (2011). Stratigraphic evolution and petroleum potentials of Middle Cretaceous sediments in Lower and Middle Benue Trough. Petroleum Technology Development Journal 1, pp. 1-34.-
[2]. Akani-Hamed, J. (1988). Differential reduction to the pole of regional magnetic anomalies. Geophysics 53 (12), pp. 1592-1600.
[3]. Coulon, C., Vidal, P., Dupuy, C., Baudin, Popoff, M. Maluski, H. and Hermitte, D. (1996). The Mesozoic to Early Cenozoic Magmatism of the Benue Trough (Nigeria); Geochemical Evidence for the Involvement of the St Helena Plume. Journal of Petrology37 (6), pp. 1341–1358.
[4]. Dobrin, M. B and Savit, C. H. (1988). Introduction to geophysical prospecting (4th Ed.). Newyork: McGraw-Hill Book Company.
[5]. Fairhead, J. D. and Okereke, C. S. (1990). Crustal thinning and extension beneath the Benue Trough based on gravity studies. Journal of African Earth Sciences. 11 (3/4), pp.329-355.
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| Paper Type | : | Research Paper |
| Title | : | Source Rock Geochemistry of the Nsukka Formation in Arochukwu Area of Afikpo Basin, South‒Eastern Nigeria |
| Country | : | Nigeria |
| Authors | : | C Ameh || O Aina || K Ogbuwa || S Abrakasa || R Ideozu |
Abstract: A geochemical study on the evaluation of shale samples obtained from the Nsukka Formation in the Arochukwu area of Afikpo basin was undertaken. Samples from four sections of the studied area were analyzed using Rock Eval Pyrolysis.The results indicate that Total Organic Carbon (TOC) ranges from 0.5 wt%, to 0.88wt%. The hydrogen index (HI) values range from 3mgHC/TOC to 16mgHC/TOC. Samples show predominance of type III (gas‒prone) and type IV (non- hydrocarbon potential) as indicated by the Van Krevelen diagram..............
Key words: Afikpo Basin, Nsukka Formation, Rock Eval Pyrolysis, Petroleum potentials, Expulsion efficiency, Net expulsion.
[1] Adegoke O.S., Omatsola M.E. and Coker S.J.L., 1991 The Geology of the Nigerian Tar Sands, InMeyer, R.F., Ed., 5thUnitar International Conference on Heavy Crude and Tar Sands: AOSTRA, Technical Reports, pages 369-3385
[2] Akinmosin, A, Omosanya, K.O, Ariyo, S.O, Folorunsho, A.F, and Aiyeola, S.O. 2011. Structural Control For Bitumen Seepages in Imeri, SouthWestern Nigeria. International Journal of Basic & Applied Sciences. 11 No: 01, 61-68.
[3] Akintola A. I., Ikhane P. R. and Adeola O. 2013. Heavy mineral and grain size characterization of bitumen seeps exposed at Ogbere, SouthWestern. Nigeria. International Research Journal of Geology and Mining. 3(2) pp. 82-101
[4] Ako B.J., 2003. Exploration strategies for bitumen saturated sands in Nigeria:Prospects for investment in mineral resources of southwestern Nigeria. In Elueze, A.A. (Ed). 2008, Nigeria Mining and Geosciences Society (N.M.G.S) 61-66
[5] Algeo, T.J., Maynard, J.B., 2004, Trace-element behavior and redox facies in core shales of Upper Pennsylvanian Kansas-type cyclothems, Chemical Geology, 206, 289-318.
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| Paper Type | : | Research Paper |
| Title | : | Cretaceous Nano Fossils of Sivaganga Formations of Cauvery Basin, Tamil Nadu |
| Country | : | India |
| Authors | : | H. K. Murthy || T. Brahmaiah || U. Imran Basha || O Vijaya Kumari || K .S .Sai Prasad |
Abstract: The work undertaken pertains to the study of palynofosssils of the sediments obtained from lower cretaceous sediments of Sivaganga formations of Cauvery basin, Southern India. The sediments mostly comprises of conglomerates, sandstone and shale. The sediments after subjecting them to the standard macerations process of palynofossils separation yielded assemblages of Angiospermic pollens, Pteridospermic spores, Gymnospermic spores and pollens and Bryophytic spores.............
[1]. Acharyya S K and Lahari T C (1991). Cretaceous Palaeogeography of the Indian sub-continent: a review. Creataceous Research, 12, 3-26.
[2]. Archangelsky, S & Gamerro J C (1966 b): Estudio palinologico de la Formation Baquero (Cretacico), Provincia de Santa Cruz. 2 Ameghiniana, 4, 201-9.
[3]. Ayyaswami, K and Gururaj, M.N (1977) Plant fossils from the East-Coast Gondwana beds of Tamilnadu with a note on their age. Jour. Geol. Soc. India, 18(8):398-400
[4]. Balmb, B. E., (1957) Spores and pollen grains from the Mesozoic of Western Australia. Common Sci. Indian Res. Organ. Coal Res. Sect., v. 25, pp. 1-48.
[5]. Banerji, R.K (1982) Sivaganga Formation, its sedimentology, micropalaeontology and sedimentation history Jour. Geol. Soc. India, 23(9): 450-457).
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| Paper Type | : | Research Paper |
| Title | : | A Sudden Movement across an Inclined Surface Breaking Strike-Slip Fault in an Elastic Layer Overlying a Viscoelastic Layer and a Viscoelastic Half-Space |
| Country | : | India |
| Authors | : | Asish Karmakar || Sanjay Sen |
Abstract: A multi-layered model is considered to represent the earth's lithosphere-asthenosphere system consisting of two parallel layers, first one is elastic and the second one is viscoelastic, overlying a viscoelastic half-space. They are assumed to be in welded contact. An inclined surface breaking strike-slip fault is taken to be situated in the first layer. Stresses are assumed to be accumulated in the lithosphere-asthenosphere system near the fault, due to some tectonic reason such as mantle convection..............
Key words: Aseismic state, Green's function, Stress accumulation and release, Strike-slip fault, Viscoelastic
[1]. T. Maruyama, On two dimensional dislocation in an infinite and semi-infinite medium, Bull. earthquake res. inst., tokyo univ., 44, part 3, 1966, pp. 811-871.
[2]. K. Rybicki, The elastic residual field of a very long strike-slip fault in the presence of a discontinuity, Bull. Seis. Soc. Am., 61, 1971, 79-92.
[3]. K. Rybicki, Static deformation of a multilayered half-space by a very long strike-slip fault, Pure and Applied Geophysics, 110, 1973, pp.1955-1966.
[4]. A. Mukhopadhyay et.al. , On two interacting creeping vertical surface breaking strike-slip fault in the lithosphere, Bull. Soc. Earthq. Tech., vol. 21, 1984, pp. 163-191. (with P. Mukherjee).
[5]. A. Mukhopadhyay et. al., On two Aseismically creeping and interacting buried vertical strike-slip faults in the lithosphere, Bull. Soc. Earthquake Tech., vol.23, 1986, pp. 91.
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| Paper Type | : | Research Paper |
| Title | : | Arsenic and Fluoride in Groundwater of a Loessical Unconfined Aquifer, Cordoba, Argentina |
| Country | : | Argentina |
| Authors | : | Blarasin M. || Bécher Quinodóz F. || Cabrera A. || Matteoda E. || Felizzia J. |
Abstract: La Colacha basin (Córdoba province, Argentina) is a piedmont rural area where groundwater is used for different activities. The objective of this work is to assess the controls on geochemistry processes in the unconfined loessical aquifer, especially those related to arsenic and fluoride. Low groundwater velocities and bicarbonate sodium water types predominate. The results of the numerical models show that salt dissolution and cation exchange are the main geochemical processes in the aquifer. High values of As and F were identified and although they do not follow clear trends with major ions, the multivariate statistical analysis shows that there is affinity between As and F with pH and alkaline waters..............
Key words: Geochemistry, loess, water quality
[1] V. K Saxena, and S. Ahmed. Dissolution of fluoride in groundwater: a water-rock interaction study. Environmental Geology 40, 2001, 1084–1087
[2] M.A. Armienta. And N. Segovia, Arsenic and fluoride in the groundwater of Mexico, Environmental. Geochem. Health. 30(4), 2008, 345-353
[3] H. Nicolli, J. Suriano, M. Gómez Peral, L. Ferpozzi and O. Balean, Groundwater contamination with Arsenic and other trace elements in an area of the province of Córdoba. Argentina. Environmental Geology and Water Sciences. 14 (1), 1989, 3-16
[4] M. Blarasin, A. Cabrera, E. Matteoda, M. Aguirre, J. Giuliano Albo, F. Bécher Quinodóz, L. Maldonado and H. Frontera. Recursos hídricos subterráneos Parte II: Aspectos geoquímicos, isotópicos, contaminación y aptitudes de uso. En: Relatorio del XIX Congreso Geológico Argentino: Geología y Recursos Naturales de la Provincia de Córdoba. (Eds. Roberto D. Martino y Alina B. Guereschi), Córdoba, 2014. Asociación Geológica Argentina.
[5] G. Jacks, P. Bhattacharya, V. Chaudhary and K.P. Singh, Controls on the genesis of some high fluoride groundwaters in India. Applied Geochemistry, 20, 2004, 221-228.
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| Paper Type | : | Research Paper |
| Title | : | Analysis of land use and land cover changes in the area between Suleikhat and Yarmouk River Plain, Jordan |
| Country | : | India |
| Authors | : | Mohammad Tarawneh || Dr.M.R.Janardhana |
Abstract: This study has been conducted to assess the land use and land cover changes in the area between Suleikhat area and Yarmouk River in Jordan. The satellite images for the years 1972 and 2015 downloaded from GLCF web site have been used as a source data. The supervised classification has been followed to find out the different land use and land covers in the study area. To confirm the accuracy of classification the well-known error matrix has been used, from which the accuracy of classification found as 95 per cent. The result of analysis depicts that, vast area of plantation have been decreased followed by barren land while settlement, tree and water bodies have increased.
Key words: land use and land cover, image classification, transit, error matrix
[1] Foley, J.A., et al., Global consequences of land use, Science, 309 (5734), 2005, 570–574.
[2] Gilani, H et al., Decadal land cover change dynamics in Bhutan, Journal of Environmental Management, 148, 2015, 91-100.
[3] Lu, D., et al., Land-cover binary change detection methods for use in the moist tropical region of the Amazon: a comparative study, International Journal of Remote Sensing, 26 (1), 2005, 101–114.
[4] Puissant, A., Hirsch, J., and Weber, C., The utility of texture analysis to improve per-pixel classification for high to very high spatial resolution imagery, International Journal of Remote Sensing, 26 (4), 2005, 733–745.
[5] Klein, I., Gessner, U., and Kuenzer, C., Regional land cover mapping and change detection in Central Asia using MODIS time-series, Applied Geography, 35 (s 1-2), 2012, 219-234.