Version-1 (Sep-Oct-2015)
- Citation
- Abstract
- Reference
- Full PDF
| Paper Type | : | Research Paper |
| Title | : | Petrological Characterisitics and Paleodepositional Environment of the Sandstones of the Ameki Group (Eocene) In Bende and Isimkpu Areas, Southeastern Nigeria |
| Country | : | Nigeria |
| Authors | : | P. N. Obasi || A. U. Okoro || E. O. Igwe || E. N Edene |
Abstract: Petrological characteristics of sandstones outcropping in Bende and Isimkpu areas was carried out using sieve analysis and pebble morphometric studies in determination of the paleodepositional environment for Sandstone facies of the Ameki Group. Lithostratigraphic studies show that the area is underlain by sandstones, calcareous sandstone, shales, mudstones and clays. This has been organized into: Unit A: Idima junction shale; B: Bende sandstone; C: Onuinyang calcareous siltstone and D: Isimkpu sandstone, from oldest to youngest. Representative sandstone samples were collected from outcrops widely distributed in the area.
[1]. Adegoke, O. S; 1969, Eocene stratigraphy of southern Nigeria. Bull. Bur. Rech. Geo Min mem no. 69,22-48.
[2]. Adegoke, O. S; Arua, I; Oyegoke, O;1980. Two new nautiloids from the Imo shale (Paleocene) and Ameki Formation (Middle Eocene) Anambra State, Nigeria.Jour. Of Mining and Geol. 17, 85-89.
[3]. Anyanwu, N. P. C; and Arua, I; 1990. Ichnofossils from the Imo Formation and their Paleoenvironmental significance. Jour. Of Mining and Geology. 26, 1-4.
[4]. Arua, I; 1986. Paleoenvironment of Eocene deposits in the Afikpo Syncline, southern Nigeria. Jour. Of African Earth Sciences 5, 279-284.
[5]. Berggren, W. A; 1960. Paleocene biostratigraphy and planktonic foraminifera of Nigeria (West Africa). International Geoiogical Congress, Copenhagen, Report 21 (6), 41-55.
[6]. Blatt, H; 1959. Effects of size and Genetic Quartz on sphericity and form of Beach Sediments, North New Jersey. Jour. Of Sed. Pet. Vol. 29, pp 179-203.
- Citation
- Abstract
- Reference
- Full PDF
| Paper Type | : | Research Paper |
| Title | : | Provenance, tectonic setting and diagenesis of the Mn-Fe coated terrigenous clastsfrom the modern soil profiles, North West Province of South Africa: a case study of theCarletonville area. |
| Country | : | South Africa |
| Authors | : | B.K. Pharoe || C.Baiyegunhi || K. Liu |
Abstract: The arkosic and subordinate quartz-arenitic Mn-Fe coated terrigenous clasts were discovered to occur in association with manganese nodules hosted by weathered Mn-Fe rich alluvial-fluvial sediments of the Tertiary period in Carletonville area. The weathered Mn-Fe rich alluvial-fluvial sediments form the modern soil profiles in the study area. The Scanning Electron Microscope and petrographic studies of the terrigenous clasts indicated elevated content of manganese oxide precipitated in pore spaces between the framework grains as well as forming surface coatings on hand specimen. These clasts are mined with manganese nodules in the study area.
[1] A. Basu, S. Young, L.J. Suttner, W.C. James and C.H. Mack, Re-evaluation of the use of Undulatory extinction and polycrystallinity in detrital quartz for provenance interpretation,Journal of Sedimentary Petrology,45,1975,873–882. [2] M.E. Dabbagh and J.J. Rogers, Depositional environments and tectonic significance of the Wajid sandstone of southern Saudi Arabia,Journal of African Earth Sciences, 1983,47–57. [3] W.R. Dickinson, L.S. Beard, G.R. Brackenridge, J.L. Evjavec, R.C. Ferguson, K.F. Inman, R.A. Knepp, F.A. Linberg and P.T. Ryberg, Provenance of Northern American Phanerozoic sandstones in relation to tectonic setting,Geological Society of America Bulletin, 94, 1983, 222-235.
[4] W.R. Dickinson, Interpreting provenance relation from detrital modes of sandstones, In: G.G Zuffa (ed.). Provenance of arenites, D.Reidel Publishing Company, 148, 1985, 333-361.
- Citation
- Abstract
- Reference
- Full PDF
| Paper Type | : | Research Paper |
| Title | : | Time-Frequency Attenuation of Swell Noise on Seismic Data from Offshore Central Niger-Delta, Nigeria. |
| Country | : | Nigeria |
| Authors | : | Tamunobereton-ari, I || Ngeri, A.P. || Amakiri, A.R.C. |
Abstract: Diversity of noise types with different characteristics makesseparation of signal and noise a challenging process.Swell noiseusually contaminates tracesand it is characterized by high amplitude and low frequencies and affects only a limited band offrequencies.This work presents how FX projection filter (FXEDIT code) processing approach was used to attenuate swell noise on dataset from a marine seismic survey offshoreCentral Niger-Delta, Nigeria, which shows as an effective amplitude preserving and robust tool that gives better results compared to many other conventional filtering algorithms.With this processing approach and working side-by-side with the shot gather and the RMS windows; the results achieved are reliable and satisfactory by giving clearer images for reservoir characterization.
[1]. Landrø, M. 2008. The effect of noise generated by previous shot on seismic reflection data.Geophysics, 73(3), Q9 - Q17.
[2]. Gulunay, N., 2008, Two different algorithms for seismic interference noise attenuation: The Leading Edge, 27, 176 - 181.
[3]. Elboth, T., Presterud, I., and Hermansen, D. 2010b. Time-frequency seismic data de-noising.Geophysical Prospecting, 58(3):441 - 453.
[4]. Kundu, P. K., 1977, Fluid mechanics: Academic Press. New York.
[5]. Parrish, J. F., 2005, Streamer string waves and swell noise:SEG Technical Program Expanded Abstracts, 24, 72 - 75.
[6]. Peacock, J. H.; Sykes, C. G.; Cameron, N. W. and Peardon,L. G. 1983, Advanced acoustic design for a new seismicstreamer: SEG Technical Program Expanded Abstracts, 2, 465 - 466.
- Citation
- Abstract
- Reference
- Full PDF
| Paper Type | : | Research Paper |
| Title | : | Pyrite framboid size distribution of the Grey Shales (Yorkshire UK) as an indication of redox conditions |
| Country | : | Nigeria |
| Authors | : | Ifeoma Agbi || Bridget Ozibo || Robert Newton |
Abstract: The pyrite framboid size distribution of 26 samples from the Grey Shales were analysed to determine the water column redox history of the sediments. The pyrite framboids range from 4.46μm to 8.76μm in diameter which is indicative of framboids nucleation and growth within an oxic to dysoxic water column. In contrast to the higher oxygenation shown by the framboid size distribution pattern, the paleoecologies of the sediments indicate severe depletion of oxygenated conditions. This variance may have been due to a fluctuating redox interface leading to brief periods of oxygenation or size sorting from storm events that probably favoured the preservation of larger size framboids.
Keywords; Pyrite framboid, Grey Shales, Size sorting, Anoxic environment.
[1] R.T. Wilkin and H.L. Barnes, Formation processes of framboidal pyrite, Geochimica et Cosmochimica Acta, 61(2), 1997, 323-339. [2] D.E. Canfield and B. Thamdrup, The production of 34S-depleted sulphide during bacterial disproportionation of elemental sulphur, Science, 266, 1994, 1973-1975.
[3] R.T. Wilkin, H.L. Barnes, and S.L. Brantley, The size distribution of framboidal pyrite in modern sediments: An indicator of redox conditions, Geochimica et Cosmochimica Acta, 60(20), 1996, 3897-3912.
[4] P.B. Wignall and R. Newton, Pyrite framboid diameter as a measure of oxygen deficiency in ancient mudrocks, American Journal of Science, 298, 1998, 537-552. [5] R.T. Wilkin, M.A. Arthur, and W.E. Dean, History of water-column anoxia in the Black Sea indicated by pyrite framboid size distributions, Earth and Planetary Science Letters, 148(3-4), 1997, 517-525.
[6] M.K. Howarth, The stratigraphy and ammonite fauna of the Upper Liassic Grey Shales of the Yorkshire coast, Bulletin of the British Museum, 24, 1973, 253-277.
- Citation
- Abstract
- Reference
- Full PDF
| Paper Type | : | Research Paper |
| Title | : | Lithology, Structure and Geomorphology of the Nagari outliers, Chittoor district, Andhra Pradesh, India |
| Country | : | India |
| Authors | : | U.Suresh || V. Gope Naik || D.B.Sankar |
Abstract: Nagari Quartzite of the Nallamali Group of the Cuddapah Supergroup occurs as outliers in the southern end of the Cuddapah basin. These are also called Nagari outliers named after the type area of Nagari Quartzite. All the Nagari outliers exhibit a sequence of basal conglomerate, grit and quartz arenite/quartzite. Conglomerate is mature and an oligomictic one with the pebbles of quartzite dominating over the chert, quartz, jasper and vein quartz with siliceous and ferruginous matrix.
[1]. King, W., (1872) On the Cuddapah and Kurnool Formations in the Madras Presidency. Mem. Geol. Sur. Ind. 8. pp 1-320.
[2]. Nagaraja Rao B. K., and Ramalingaswamy, G., (1976) Some new thoughts on the stratigraphy of Cuddapah Super group, seminar on Kaladgi-Badami, Bhima and Cuddapah Super group, Mysore; Abstracts pp. 17-20.
[3]. Nagaraja Rao, B.K., Rajaurkar, S.T., and Ramalingaswamy, G., (1987) Stratigraphy, Structure and Evolution of the Cuddapah Basin - Mem. Geol. Soc. India, 6, pp. 33-86.
[4]. Phillips, J. D., (2005) Weathering, instability, and landscape evolution, Journal of the Geomorphology, 67, pp. 255-272.
[5]. Sen, S. N. and Narasimha Rao, Ch (1967) Igneous activity in Cuddapah Basin, adjacent areas and suggestions in the Palaeogeography of the basin, In symposium on upper mantle Project proceedings National Geophysical Research Institute, Hyderabad, pp. 261-285.
- Citation
- Abstract
- Reference
- Full PDF
| Paper Type | : | Research Paper |
| Title | : | Structural Analysis and Tectonic Evolution based on Seismic Interpretation in East of Nile valley, BeniSuef basin, Egypt. |
| Country | : | Egypt |
| Authors | : | Mohamed H. Abd El-Aal || Tamer E. Attia || Mohamed A. Aboulmagd |
Abstract: the subsurface tectonic evolution of the East of Nile valley (EON) of the Beni Suef basin, Egypt, were studied using twenty seismic profiles representing the desired structural framework of the EON - four of these were selected for illustration - supported by the vertical seismic profile (VSP) logs of three deep wells drilled in the study area. In addition, the analysis encompasses the detailed investigation of two (TWT) two way time structure-contour maps and the rose diagrams representing the general trends of the recorded fault systems. The study proved that the Upper Cretaceous rocks were dissected by systems of normal faults, trending in WNW-ESE, NW-SE. These fault systems were originated in association to Cretaceous-Early Tertiary tectonic deformations related to the Tethyan plate tectonics.
Keywords: Beni Suef basin, EON, seismic, basin evolution, tectonics.
[1]. S. M. Khalil, K. R. McClay, Extensional fault-related folding, northwestern Red Sea, Egypt. J. Struct. Geol. 24, 2002, 743–762
[2]. K. A. Howard, B. E. John, Fault-related folding during extension: plunging basement-cored folds in the Basin and Range. Geology, 25, 1997, 223–226.
[3]. S. Corfield, I. R. Sharp,Structural style and stratigraphic architecture of fault propagation folding in extensional settings: a seismic example from the Smorbukk area, Halten Terrace, Mid-Norway. Basin Res., 12, 2000, 329–341.
[4]. I. R. Sharp,R. L. Gawthorpe, J. R. Underhill, S. Gupta,Fault-propagation folding in extensional settings: examples of structural style and synrift sedimentary response from the Suez rift, Sinai, Egypt. GSA Bull., 112, 2000, 1877–1899.
[5]. M. O. Withjack, J. Olson, E. Peterson,Experimental models of extensional forced folds. AAPG Bull., 74, 1990, 1038–1054.
- Citation
- Abstract
- Reference
- Full PDF
| Paper Type | : | Research Paper |
| Title | : | Perspective Study on Ground Water in East Godavari District of Andhra Pradesh |
| Country | : | India |
| Authors | : | Dr.Anil Babu .Ch || Ramesh Talluri |
Abstract: This article is a deal with the study of East Godavari District There is a need for study the ground water in the district. The information helps the planners, hydrologists, Geologists, Geographers and researchers for better planning and management of underground water data whenever it is required. So for this a study is made on the basis of secondary data form internet and water board survey reports from three decades, This helps in decision making based on the information of ground water as a resource in East Godavari District. A series of information has been considered and highlighted for the uses. Key words: Hydrologists, Management, Planners, Survey.
[1]. Spatial evaluation of groundwater levels and its quality in Kakinada town, Andhra Pradesh. National Institute of Hydrology, Roorkee, CS (AR)-98-99.
[2]. Seasonal mapping of water bodies along the Andhra coast using satellite Data,national institute of hydrology,CS/AR-7/1999-2000
[3]. Chandra Sekhar Reddy, Deshpande, L. S.M. Ramana Reddy, K.V. and Aher, K.R. (2012). Hydro Geochemical Processes in the Groundwater Environment of Vemula area,
[4]. Kadapa District, South India, International Journal of Recent Trends in Science And Technology, Volume 3, Issue 1, p - 18-24
[5]. Studies on groundwater quality in slums of Visakhapatnam, Andhra Pradesh.Ch.Ramakrishna,D.Mallikarjuna Rao,K.Subba Rao And N.Srinivas,Asian Journal of Chemistry,vol.21.No.6(2009)4246-4250.
- Citation
- Abstract
- Reference
- Full PDF
| Paper Type | : | Research Paper |
| Title | : | Estimation of Poisson's Ratio of Ozizza Subsurface Layers |
| Country | : | Nigeria |
| Authors | : | S.O. Agha || C. Agha || P.A. Nwofe || A.E. Umahi || J.N. Ekpe || S.P.I. Ogah |
Abstract: A geophysical survey aimed at determining the Poisson's ratio of subsurface earth materials have been carried out. Knowledge of the Poisson's ratio of materials is important since it gives information about the quality of such materials with respect to construction works. The study area is Ozizza (lat. 5.80-5.90N; long. 7.80-7.90E) situated within the Afikpo sedimentary basin in south - eastern Nigeria. The geophysical method employed was the seismic refraction method and both P - and S - waves were utilized. The major equipment used was a MOD.S79 seismograph and its accessories including P- and S- wave sources and detectors. The result shows that the P- waves delineated three layers with average velocities of 420m/s, 1745m/s and 2620m/s for the first, second and third layers from the earth's surface respectively whereas the S-waves revealed only two layers with average velocities of 310 m/s and 1100 m/s for the first and second layers accordingly. The result indicates that the first and second layers of Ozizza (probably made up of sandy clay and sand with gravel have Poisson's ratio of 0.22 and 0.28 respectively.
Keywords – Basin, Poisson, Sedimentary, Seismograph
[1] M.B. Dobrin, Introduction to geophysical prospecting (McGraw-Hill Books ltd., Japan, 1976).
[2] W. Lowrie, (Fundamentals of Geopysics Cambridge university press, UK, 1997).
[3] Telford, W.M., Geldart L.P., sheriff, R.E. keys, D.A. (Applied Geophysics, Cambridge university press,. New York, 1976).
[4] Grant E.S., west G .F. Interpretation theory in Applied Geophysics, (McGraw-Hill Book, company, New York, 1965).
[5] F.P. Haeni, Application of seismic refraction method in Groundwater modeling studies in New England, Geophysics 51(2), 1986, 236-249.
[6] F. N., Okeke, C. A., Onwumechili, B. A. Rabiu, Day-to-day variability of geomagnetic hourly amplitudes at low latitudes. Geophysical Journal International, 134(2), 1998, 484-500.
[7] Selemo. D. (1999): Aeromagnetic study of the basement relief in Afikpo basin, Nigeria, Unpublised Ph.D Thesis, University of Calabar, Nigeria..
- Citation
- Abstract
- Reference
- Full PDF
| Paper Type | : | Research Paper |
| Title | : | Determination of Thickness of Overburden in Basement Area Using Schlumberger Electrodes Array |
| Country | : | Nigeria |
| Authors | : | S.O. Agha || C. Agha || P.A. Nwofe |
Abstract: The overburden thickness of Abuja (Lat. 70 12´N – 90 30´ N and Long. 50 24´E- 70 19´E) has been estimated. The geophysical method used was the electrical resistivity and the electrodes array was Schlumberger type. The equipment utilized were four electrodes, hammer, four reels of wires, crocodile clips, measuring tape, global positioning systems(GPS) and a terrameter. The survey was carried out in two locations and the average resistivity values of the first four geoelectrical layers were from the surface, 590 Ωm, 1800 Ωm, 1900 Ωm and 760 Ωm. These layers were interpreted as probably top soil, laterite, weathered basement rock and fairly weathered basement rock. The average thickness of the overburden was found to be 5.43m. Keywords – Basement, Geo-electrical, Overburden, Resistivity, Schlumberger
[1] M.B. Dobrin, Introduction to geophysical prospecting (McGraw-Hill Books ltd., Japan, 1976).
[2] R.A. Freeze, Groundwater. (Prentrice Hall, Englewood Cliff , New Jersey, 1979).
[3] R.F. Flint, B.J. Skinner, Physical geology, (John Wiley and sons Inc., Canada, 1974).
[4] P. Kerry, M. Brooks, An Introduction to Geophysical Exploration (Blackwell Scientific Publications, U.S.A, 1991).
[5] C.A. Kogbe, Geology of Nigeria, (Elizabeth Publications, London, 1976)
[6] W. Lowrie, Fundamentals of geophysics, (Cambridge university press, UK, 1997).
- Citation
- Abstract
- Reference
- Full PDF
| Paper Type | : | Research Paper |
| Title | : | 1-D Electrical Resistivity Survey For Groundwater In Ketu-Adie Owe, Ogun State, Nigeria. |
| Country | : | Nigeria |
| Authors | : | Usifo A.G. || Adeola A.J. || Babafemi E. M. || Akinnawo O. O. |
Abstract: This research involved the use of 1-D electrical resistivity survey method for groundwater investigation in Ketu-Adie Owe, Ogun State. Seven (7) vertical electrical resistivity soundings (VES) using Schlumberger array were carried out at different locations. The Schlumberger resistivity soundings were executed with half-spacing in the range of 1.00 – 100.00 metres. The curve types are AAK, AAK, KHAK, AKQ, KQH, AK. The study shows that viable aquifer is within 17.30 – 52.90 metres square. Keywords: Aquifer, Curves types, Electrical resistivity, Groundwater, Vertical Electrical Sounding.
[1]. Francis A. Dawodu (2013). Geoelectric investigation of Groundwater conditions: A case study of Ogwashi – Uku in Delta State,
Nigeria. Journal of the Nigerian Association of Mathematical Physics,25(2), November, 2013, 81 -88.
[2]. Hamil, L. And Bell, (1986). Groundwater resources development britain library cataloguing in publication data london, 151 – 158.
[3]. Omotasola M. E. and Adegoke O. S. (1981). Tectonic evolution and cretaceous stratigraphy of the Dahomey Basin. Journal of
Mining and Geology, 18 (1), 130 – 137.
[4]. Jones H. A. And Hockey R.D. (1964). The Geology of parts of South-western Nigeria. Bulletin of the Geological survey of
Nigeria, 31, 86 – 88.
[5]. Gbadebo A.M., Taiwo a.m., Ayedun H. And Adeola A.J. (2012). Geochemical Analysis of Groundwater Quality in Agbara and
Environs. Journal of Applied Ecology and Environmental Research, 2-3.
[6]. Allen J.R.L. and Wells J.W. (1962): Holocene coral banks and subsidence in the Niger Delta. Journal of Geology, 70 (4), 381 – 397.
- Citation
- Abstract
- Reference
- Full PDF
| Paper Type | : | Research Paper |
| Title | : | Integrated Geophysical Investigation of a Suspected Spring in Igbokoran, Ikare-Akoko, Southwestern Nigeria |
| Country | : | Nigeria |
| Authors | : | Onoja S.O || Osifila A.J |
Abstract: An integrated geophysical investigation involving self potential (SP), very low frequency electromagnetic (VLF-EM) and electrical resistivity methods (VES) were conducted around a suspected spring in Igbokoran, Ikare Akoko, Ondo State, Nigeria in other to understand the nature of the spring as well as evaluate the feasibility of ground water development in the area. Three geophysical traverses of length 240m each were established in the study area in approximately E-W direction. VLF-EM measurements with station spacing of 10m was used as reconnaissance to delineate conductive zones between 70-160m along traverse 1, 80-170 m along traverse 2 and 60-180m along traverse 3
[1] D. K. Butler and J. L .Llopis, "Assessment of anomalous seepage conditions". US Army Eng. Waterways Expt. Station, Vicksburg, Mississippi. Pp. 153-173, 1990
[2] D. C. Fraser, "Contouring of VLF-EM data". Geophysics, 34, pp 958-967, 1969
[3] M. Karous, S.E. Hjelt." Linear Filter of VLF Dip-Angle Measurements". Geophysics Prospect. 31, pp782-794, 1983
[4] M. Z. Mohammed,.,. "Hydrogeophysical Investigation of parts of the River Jama are Floodplain, West Chad Basin, Northeastern Nigeria". Unpubl. Ph.D T Thesis Obafemi Awolowo Univ., Ile-Ife, Nigeria. Pp. 1 – 289, 2007
[5] A. I. Olayinka and M. O. Olorunfemi, "Geoelectric sInvestigation in Okene and its Implication for Borehole Sitting". Journal of Mining and Geology, pp 403-411,1992