The Characteristics and the Erodibility Potentials of Soils from Different Geologic Formations in Anambra State, Southeastern Nigeria

Authors

  • Ogbonnaya Igwe
     Department of Geology, Faculty of Physical Sciences, University of Nigeria, Nsukka
  • Johnbosco C. Egbueri
     Department of Geology, Faculty of Physical Sciences, University of Nigeria, Nsukka

DOI:

https://doi.org/10.1007/s12594-018-1044-1

Abstract

The characteristics and the erodibility potentials of soils from Benin, Ogwashi-Asaba, and Nanka formations in Anambra state, Nigeria were studied. The study involved an integration of field observations, geotechnical analyses, and topographical modelling. About ten gullies were identified in the field. However, six major gullies labeled BN1, BN2, OA1, OA2, NK1, and NK2 were chosen and studied extensively to represent the three geologic formations. The results showed that soil properties, anthropogenic activities, topography, fierce surface runoff, and sparse vegetation are the factors that commonly and systematically influence the characteristics and erodibility potentials of all these soils. However, anthropogenic activities and soil properties play the most, dominant roles in the erosional processes. The specific gravity of the soils are similar, with values ranging from 2.50 to 2.69. Compaction test revealed all the soils were loose and collapsible. Grain size analysis further revealed that they have low content of fines (<25%, except for OA1 with 58.87%). The plasticity index of the fines indicated that they are nonplastic to low plastic soils (values range from 0-12%). The soils are highly to moderately permeable, with values ranging from 4.22x10-6m/sec to 4.34x10-4m/sec. All have low cohesion ranging from 1-7kPa, except for the OA1 with 27kPa. Based on the study, the three geologic formations have similar characteristics and high erodibility potentials; though OA1 has varied characteristics and thus, lower erodibility potential.

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Issue

Volume 92, Issue 4, October 2018 Pages (381-510)

Section

Research Articles

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Published

2018-10-01

How to Cite

Igwe, O., & Egbueri, J. C. (2018). The Characteristics and the Erodibility Potentials of Soils from Different Geologic Formations in Anambra State, Southeastern Nigeria. Journal of Geological Society of India, 92(4), 471–478. https://doi.org/10.1007/s12594-018-1044-1
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References

Bell, F.G. (2007) Engineering Geology, 2nd Ed. Oxford UK: Butterworth-Heinemann, Elsevier Ltd, 593p.

Carey, B. (2006) Gully erosion. Queensland Government Natural Resources and Water Facts Land Series L81, 4p. http://www.nrm.qld.gov.au/factsheets/pdf/land/l81.pdf. Accessed April, 2017.

Casagrande, A. and Fadum, R.E. (1940) Notes on Soil Testing for Engineering Purposes. Harvard Univ. Graduate School of Engg., Publication No.8.

Casali, J., Giménez, R. and Bennett, S. (2009) Gully erosion processes and modelling. Proc. Fourth International Symposium on Gully Erosion, Pamplona, Spain, September 2007, Earth Surface Processes and Landforms, v.34, pp.1839–1984.

Chikwelu, E.E. and Ogbuagu, F.U. (2014) Geotechnical Investigation of Soil around Mbaukwu Gully Erosion Sites, South-Eastern Part of Nigeria. Jour. Appld. Geol. Geophys., v.2(4), pp.6-17.

Egboka, B.C.E. and Nwankwor, G.I. (1985) Hydrogeological and geotechnical parameters as agents for gully-type erosion in the rain-forest belt of Nigeria. Jour. African Earth Sci., pp.417–425.

Egboka, B.C.E. and Okpoko, E.I. (1984) Gully erosion in the Agulu-Nanka region of Anambra State, Nigeria. Challenges in African Hydrology and Water Resources: Proceedings of the Harare Symposium, IAHS Publ., v.144, pp.335–347.

Egbueri, J.C. (2014a) A Technical Report on Students' Industrial Work Experience Scheme, Department of Geology, Faculty of Physical Sciences, Anambra State University, Uli; January, 2014. 43p.

Egbueri, J.C. (2014b) The Geology of Ogbunike and Its Environs in Anambra State, Southeastern Nigeria. Unpublished B.Sc. Thesis, Anambra State University, Uli. 141p.

Hong, D.I., Miao, G.B. and Deng, D.S. (2005) Relation of Starting Shear Stress and Physical and Mechanical Indexes of Cohesive Undisturbed Soil. Adv. Water Sci. (in Chinese); v.17(b), pp.774-779.

Hudec, P.P., Simpson, F., Akpokodje, E.G. and Umenweke, M.O. (2006) Termination of Gully Processes, Southeastern Nigeria. Proceedings of the Eighth Federal Interagency Sedimentation Conference (8th FISC), April26, 2006, Reno, NV, USA, pp.671-679.

Igwe, C.A. (2012) Gully erosion in southeastern Nigeria: Role of soil properties and environmental factors. Research on Soil Erosion, G. Danilo, Ed., InTech, DOI: 10.5772/51020

Igwe, O. (2013) The Mechanisms and Geotechnical Characteristics of Slope Failures at a Mining District, Southeast Nigeria. Jour. Geol. Soc. India, v.85, pp.471-484.

Igwe, O. (2015) Predisposing factors and the mechanisms of rainfall-induced slope movements in Ugwueme, South-East Nigeria. Bull. Engg. Geol. Environ., DOI: 10.1007/s10064-015-0767-0

Igwe, O. (2017) The hydrogeological attributes and mechanisms of a receding sedimentary terrain in the Anambra Basin, Southern Nigeria. Environ Earth Sci., v.76(1), pp.1-22.

Igwe, O. and Fukuoka, H. (2010) Environmental and Socio-Economic Impact of Erosion in Nigeria, West Africa. International Jour. Erosion Control Engg., v.3(1), pp.102–109.

Igwe, O. and Fukuoka, H. (2015) The effect of water-saturation on the stability of problematic slopes at the Iva Valley area, Southeast Nigeria. Arab Jour. Geosci., v.8, pp.3223-3233.

Igwe, O., Mode, W., Nnebedum, O., Okonkwo, I. and Oha, I. (2013) The analysis of rainfall-induced slope failures at Iva Valley area of Enugu State, Nigeria. Environ. Earth Sci., DOI: 10.1007/s12665-013-2647-x.

Igwe, O., Mode, W., Nnebedum, O., Okonkwo, I. and Oha, I. (2015) The mechanisms and characteristics of a complex rock-debris avalanche at the Nigeria-Cameroon border, West Africa. Geomorphology, v.234, pp.110.

Imasuen, O.I., Omali, A.O. and IBRAHIM, I. (2011) Assessment of environmental impacts and remedies for gully erosion in Ankpa Metropolis and environs, Kogi State, Nigeria. Adv. Appld. Sci. Res., v.2(5), pp.372-384.

Inyang, P.G.B. and Monanu, J.C. (1975) Climatic Regions. In: Ofomata, G.E.K. (Ed.), Nigeria in Maps, Eastern States, pp.27-29.

Isikwue, M.O., Abutu, C. and Onoja, S.B. (2012) Erodibility of Soils of the South West Benue State, Nigeria. Pacific Jour. Sci. Tech., v.3(2), pp.437-447.

Juma, N.G. (1993) Interrelationships between Soil Structure/Texture, Soil Biota/ Soil Organic Matter and Crop Production. Geoderma, v.57(1-2), pp.3-30.

Kahlon, M.S. and Khera, K.L. (2000) Evaluation of Soil Erodibility in Relation to Soil Physical Properties. Jour. Indian Soc. Soil Sci., v.48, pp.205-206.

Kalinski, M.E. (2011) Soil Mechanics Lab Manual, 2nd Ed. United States of America: John Wiley & Sons, Inc., 193p.

Li, Y., Poesen, J. and Valentin, C. (2004) Gully Erosion under Global Change. Proc. Second International Symposium on Gully Erosion, Chengdu, China, May 2002. Sichuan Science and Technology Press, Chengdu, China, 354p.

Madukwe, H.Y. and Bassey, C.E. (2015) Geochemistry of Ogwashi-Asaba Formation, Anambra Basin, Nigeria: Implications for Provenance, Tectonic Setting, Source Area Weathering, Classification and Maturity. IJST, v.4(7), pp.312-327.

Manyatsi, A.M. (1998) Soil Erosion and Control Training Manual. Environmental Consulting Services: Mbabane, Swaziland, pp.1-13.

Nnamani, C.H. and Igwe, O. (2016) Undrained Saturated Expansive Soil: A Case Study of Awgu Shale in Oji-Agu Akpugo Southeastern Nigeria. Jour. Geol. Soc. India, v.87, pp.222-226.

Nwajide, C.S. (2013) Geology of Nigeria's Sedimentary Basins. Nigeria: CSS Bookshops Limited, 565p.

Nwozor, K.K. (2010) An Extract on the Geology and Pedology of Anambra State: Implications for Gully Erosion Control and Management. Giant Nussa Magazine, 2nd Ed., pp.19-20.

Obaje, N.G. (2009) Geology and Mineral Resources of Nigeria. New York: Springer-Verlag Berlin Heidelberg, 219p.

Obiadi, I.I., Nwosu, C.M., Ajaegwu, N.E., Anakwuba, E.K., Onuigbo, N.E., Akpunonu, E.O. and Ezim, O.E. (2011) Gully Erosion in Anambra State, South East Nigeria: Issues and Solution. Internat. Jour. Environ. Sci., v.2(2), pp.796-804.

Okogbue, C.O. (2005) Hydrocarbon Potentials of the Anambra Basin: Geology, Geochemistry and Geohistory Perspectives Proc. 1st PTDF (Chair) Senior in Geology, University of Nigeria, Nsukka, 110p.

Okoyeh, E.I., Akpan, A.E., Egboka, B.C.E. and Okeke, H.I. (2014) An Assessment of the Influences of Surface and Subsurface Water Level Dynamics in the Development of Gullies in Anambra State, Southeastern Nigeria. Earth Interactions, v.18, pp.1-24.

Oparaku, L.A., Enokela, S.O. and Akpen, G.D. (2015) Gully Erosion-Induced Land Degradation on the Idah-Ankpa Plateau of the Anambra Basin, Nigeria. IJIRSET, v.4(8), pp.6864-6870.

Poesen, J. (2011) Challenges in gully erosion research. Landform Analysis, v.17, pp.5–9.

Poesen, J. and Valentin, C. (2003) Gully Erosion and Global Change. Proc. First Internat. Symp. on Gully Erosion, Leuven, Belgium, April 2000. Catena, v.50(2–4), pp.87–562.

Poesen, J., Nachtergaele, J., Verstraeten, G. and Valentin, C. (2003) Gully erosion and environmental change: importance and research needs. Catena, v.50(2–4), pp.91–133.

Reyment, R.A. (1965) Aspects of the Geology of Nigeria. Ibadan: University of Ibadan Press, 145p.

Valentin, C., Poesen, J. and Li, Y. (2005) Gully Erosion: A Global Issue. Proc. Second Internat. Symp. Gully Erosion, Chengdu, China, May 2002. Catena, v.63(2–3), pp.129–330.

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