Dr. Romanus Ayoola Obasi
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Dr. Romanus Ayoola Obasi

Lecturer
Department of Geology, Faculty of Science, Ekiti State University, Nigeria

Highest Degree
Ph.D. in Geological Sciences from Nnamdi Azikiwe University, Awka, Nigeria

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Area of Interest:

Earth Science and Geography
100%
Mining Engineering
62%
Geological Sciences
90%
Economic Geology
75%
Geochemistry
55%

Research Publications in Numbers

Books
0
Chapters
0
Articles
68
Abstracts
0

Selected Publications

  1. Obasi, R.A. and H.Y. Maduekwe, 2021. Potential ecological and health risk assessment of dumpsite from Ibadan, Southwestern Nigeria. Nat. Environ. Pollut. Technol., 20: 833-842.
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  2. Obasi, R., H. Madukwe and O. Adewumi, 2021. Geochemistry, classification and geotectonic studies of pan-African rocks around Akure, Southwestern Nigeria. Res. J. Appl. Sci., 16: 85-101.
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  3. Oluwatoyin, O.A. and A.O. Romanus, 2020. The migmatite and gneisses in the basement complex of Southwestern Nigeria: A re-appraisal of their structural, mineralogical, and geochemical diversity. IJRDO-J. Appl. Sci., 6: 1-17.
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  4. Obasi, R.A. and H.Y. Madukwe, 2020. Ecological and health risk studies of heavy metals in soils around an abandoned battery factory in Ibadan, Southwestern Nigeria. Eur. J. Environ. Earth Sci., Vol. 1. 10.24018/ejgeo.2020.1.4.8.
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  5. Oyinloye, A.O., R.A. Obasi, A.O. Talabi, O.A. Olaolorun, A.B. Eluwole, O.F. Adebayo and O.L. Ademilua, 2019. Trace elements and rare earth geochemistry of clay-rich soil from Orin Eliti, Southwestern, Nigeria: Implications on source rocks and paleo-redox conditions. Int. J. Applied Environ. Sci., 14: 63-84.
  6. Obasi, R.A., H.Y. Madukwe and T. Olaosun, 2019. Source area weathering, paleo-environment and paleoclimatic conditions of soils from bitumen rich ode irele area of Ondo State, Nigeria. Eur. J. Eng. Res. Sci., 4: 59-67.
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  7. Obasi, R.A. and A.O. Talabi, 2019. Geochemistry and feldspathic studies of pan-african granites around Ado Ekiti, Ekiti State, Southwest, Nigeria. Int. J. Sci. Eng. Res., 10: 1358-1380.
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  8. Madukwe, H. and R.A. Obasi, 2019. Geochemistry of soil from Ode Irele area, Southwest, Nigeria Implication: For provenance and tectonic setting. Eur. J. Basic Applied Sci., 6: 18-36.
  9. Ikubuwaje, C. and R.A. Obasi, 2019. Study of index properties of termite-reworked clay soil from sedimentary and basement areas of Ondo State, Nigeria: Implications on engineering applications. Int. J. Sci. Eng. Res., 7: 22-30.
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  10. Bolaji, E.A., A.O. Lawrence, O. Akindele, A.O. Femi, O.R. Ayoola, T.A. Ojo and O.O. Amos, 2019. Geoelectric assessments of the bauxite ore deposit at Orin-Ekiti, Southwestern Nigeria. Int. J. Appl. Environ. Sci., 14: 197-210.
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  11. Talabi, A.O., A.O. Oyinloye, O.A. Olaolorun, R.A. Obasi, A.B. Eluwole, O.F. Adebayo and O.L. Ademilua, 2018. Petrography and geochemistry of Orin Ekiti basement rocks, Southwestern Nigeria: Implications for Bauxitization. Am. J. Applied Sci., 15: 230-239.
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  12. Talabi, A.O, R.A. Obasi, A.O. Oyinloye, O.L. Ademilua, O.F. Adebayo, O.A. Olaolorun and A.B. Eluwole, 2018. Evaluation of major and trace elements of orin-ekiti bauxitic clay. Res. J. Applied Sci., 13: 306-312.
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  13. Obasi, R.A., A.O. Talabi and H. Madukwe, 2018. Rare earth element geochemistry of stream sediment from pegmatite terrain of Ijero-Ekiti, Southwestern Nigeria: Implications for source rocks and Paleo-oxidation conditions. Int. J. Basic Applied Sci., 18: 8-17.
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  14. Omoniyi, M.I., J.I. Agbi, Y. Ajiboye and R.A. Obasi, 2017. Assessment of environmental and radiological health hazards due to heavy metals and radionuclides contents in utility water reservoir’s sediments. Int. J. Environ. Health, 8: 235-251.
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  15. Obasi, R.A., 2017. An input of laterite as an additive in cement manufacturing: A case study of dangote cement company, Obajana, Kogi State, Nigeria. Int. J. Basic Applied Sci., 17: 59-69.
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  16. Ogundipe, I.E. and R.A. Obasi, 2016. Geology and mineralization in the albian sediments of the benue trough, Nigeria. Br. J. Earth Sci. Res., 4: 1-15.
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  17. Obasi, R.A., M. Isikaiye and P.I. Ogunbuyi, 2016. Contamination status: Geo-investigation of stream sediments of Ilubirin Bitumen rich area of Ondo State, Southwest Nigeria using oxide and trace metals. Sci. Res. J., 4: 6-19.
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  18. Obasi, R.A., 2016. Heavy metal enrichment and geo-accumulation status of stream sediments around Ijero Ikoro road Axis, Ekiti State, Southwest, Nigeria. Int. J. Innovative Applied Res., 4: 10-19.
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  19. Obasi, R.A., 2016. Geochemistry, S-Type, classification and petrography of granites from idanre, Ondo State, Southwest, Nigeria. Int. J. Sci. Eng. Res., 7: 859-879.
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  20. Obasi, R.A. and H.Y. Madukwe, 2016. Use of geochemistry to study the provenance, tectonic setting, source-area weathering and maturity of igarra marble, Southwest, Nigeria. Am. J. Eng. Res., 5: 90-99.
  21. Obasi, R.A. and H. Madukwe, 2016. Geochemistry, classification characteristics of pegmatites from Ijero-Ekiti, Ekit Southwest, Nigeria. Br. J. Earth Sci. Res., 4: 1-18.
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  22. Obasi, R.A. and A.O. Talabi, 2016. The physiochemical characteristics of water in hand dug wells around Ekiti State University, Ado Ekiti, Southwest Nigeria. Br. J. Earth Sci. Res., 4: 8-15.
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  23. Madukwe, H. and R.A. Obasi, 2016. Geochemical and petrogenetic characteristics of the marble deposit at Ikpeshi Southern Nigeria. Nat. Sci., 14: 1-11.
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  24. Maduekwe, H.Y. and R.A. Obasi, 2016. Geochemistry, classification and maturity of the sandstone facies of the abeokuta formation, Southwestern Nigeria. Eur. J. Basic Applied Sci., 3: 39-57.
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  25. Obasi, R.A., H.Y. Madukwe and O.O. Akinola, 2015. Geochemical, provenance, tectonic setting, source area weathering and maturity status of tar sands from Ode Aye area of Ondo State, Southwestern Nigeria. Br. J. Environ. Sci., 3: 1-15.
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  26. Obasi, R.A., 2015. Vertical dispersion, contamination potentials of heavy metals, rare earth elements in the soil of Ode Aye bitumen rich area, Ondo State, Southwest Nigeria. Sci. Res. J., 111: 7-18.
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  27. Obasi, R.A., 2015. Geochemical, provenance study and classification of the Agbabu soil, Ondo State, Southwestern Nigeria. J. Multidiscip. Eng. Sci. Technol., 2: 3420-3426.
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  28. Obasi, R.A. and H.Y. Madukwe, 2015. Geochemical classification and maturity of the coastal plain sediments, Southwest, Nigeria. J. Multidiscip. Eng. Sci. Technol., 2: 537-546.
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  29. Madukwe, H.Y, R.A. Obasi, O.R. Fakolade and C.E. Bassey, 2015. Provenance, tectonic setting and source weathering of the coastal plain sediments, Southwest, Nigeria. Sci. Res. J., 3: 20-31.
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  30. Henry, Y.M. and R.A. Obasi, 2015. Classification, maturity, provenance, tectonic setting and source-area weathering of the ilubirin stream sediments, South West, Nigeria.xClassification, maturity, provenance, tectonic setting and source-area weathering of the ilubirin stream sediments, South West, Nigeria. Int. J. Sci., 4: 7-21.
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  31. Obasi, R.A., O.L. Anike and P. Ogungbuyi, 2014. Trace and rare earth elements geochemistry of marble from Ikpeshi: Its provenance and paleo-redox conditions. Int. J. Sci. Technol., 4: 14-25.
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  32. Obasi, R.A. and P.I. Ogungbuyi, 2014. Petrogenetic and distribution of trace and rare-earth elements in the marble from Igarra, Southwest Nigeria. J. Environ. Earth Sci., 3: 66-77.
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  33. Akinola, O.O., O.A. Okunlola and R.A. Obasi, 2014. Physico-chemical characteristics and industrial potential of lepidolite from ijero-aramoko pegmatite field, Southwestern Nigeria. Int. J. Sci. Technol. Res., 3: 278-284.
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  34. Akinola, O.O. and R.A. Obasi, 2014. Compositional characteristic and industrial potential of the lateritic clay deposit in Ara Ijero, Ekiti areas, Southwestern Nigeria. Int. J. Sci. Technol. Res., 3: 304-311.
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  35. Ogungbuyi, P.I., R.A. Obasi and A.F. Abimbola, 2013. Assessment of Polycyclic Aromatic Hydrocarbon (PAHs) concentration in sediments and soils around Ibadan, Southwestern Nigeria. Int. J. Eng. Technol., 3: 686-695.
  36. Obisesan, P.O. and R.A. Obasi, 2013. Public-private partnership in solid minerals development: Relevance to mining sector in Nigeria. Int. J. Res. Innovations Sustainable Dev. Centre Adv. Training Res. Accra, 3: 72-76.
  37. Obasi, R.A., O.L. Ademilua and A.B. Eluwole, 2013. Geoelectric sounding for groundwater potential appraisal around the Northeastern-Southeasthern parts of the federal polytechnic, Ado-Ekiti campus southwestern Nigeria. Res. J. Eng. Applied Sci., 2: 211-219.
  38. Obasi, R.A., 2013. Vulnerability of soil erosion in okitipupa area of Ondo State, Southwest, Nigeria: A climatic Problem. Int. J. Eng. Sci., 2: 326-335.
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  39. Obasi, R.A., 2013. Erosion and flood vulnerability of soils: A climatic challenge in Southern, Nigeria. Int. J. Sci. Technol., 2: 678-684.
  40. Ikubuwaje, C., R.A. Obasi and G. Jegede, 2013. Geomorphologic denudation of Oke- of environmental science. Toxicol. Food Technol., 10: 1-6.
  41. Rotimi, I.A. and R.A. Obasi, 2012. Uranium bearing niobotantate (Pescheckite) a new mineral in Nigeria. Int. J. Sci. Technol., 1: 316-321.
  42. Obasi, R.A., 2012. Geochemistry and appraisal of the economic potential of calc-gneiss and marble from Igarra, Edo State, Southwest, Nigeria. ARPN Int. J. Eng. Applied Sci., 2: 1018-1021.
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  43. Obasi, R.A. and O.R. Fakolade and N.O. Anyanwu, 2012. Microbiological assessment of Ero and Ureje dams in Ekiti State, Southwest, Nigeria. Int. J. Sci. Technol., 1: 573-573.
  44. Obasi, R.A. and O.L. Anike, 2012. Geochemical and economic application of marble from Igarra and Ikpeshi areas, Southwest, Nigeria. Int. J. Eng. Technol., 2: 1723-1727.
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  45. Obasi, R.A. and F. Isife, 2012. Geochemistry and economic potential of marble from Ikpeshi, Southwest, Nigeria. ARPN J. Eng. Applied Sci., 7: 1-7.
  46. Obasi, R.A. and C.O. Ikubuwaje, 2012. Geochemical classification of sediments and environment of deposition of marble from Igarra and Ikpeshi areas. Southwest, Nigeria. Int. J. Sci. Technol., 2: 65-69.
  47. Obasi, R.A. and C.O. Ikubuwaje, 2012. Analytical study of rainfall and temperature trend in catchment states and stations of the Benin Owena river Basin, Nigeria. J. Environ. Earth Sci., 12: 9-20.
  48. Isife, F.A. and R.A. Obasi, 2012. Electrical anisotropy of crystalline basement sediment rock around Ifon, Southwestern Nigeria: Implication in geologic mapping and groundwater investigation. J. Eng. Applied Sci., 7: 634-640.
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  49. Fakolade, O.R. and R.A. Obasi, 2012. The geochemical assessment of subsurface coastal plain clastic deposits of eastern dahomy, basin around lagos area, Southwest, Nigeria. J. Sci. Technol., 1: 300-307.
  50. Borisade, E.A. and R.A. Obasi, 2010. Study of colour causative in tourmaline varieties from tin bearing muscovite pegmatite of Ijero Ekiti, South Western, Nigeria. Multidiscip. J. Res. Dev., 16: 85-91.
  51. Obasi, R.A. and A.A. Aminu, 2009. Adopting an Environmental Impact Assessment (EIA) policy on the solid mineral development in Nigeria. Niger. J. Res. Prod., 14: 163-167.
  52. Obasi, R.A., 2008. An evaluation of drilling and blasting design using large diameter blast holes in a mining set up: A case study of Jakura Marble Industry. J. Eng. Earth Sci., 3: 64-71.
  53. Obasi, R.A. and P.O. Obisesan, 2008. Amenity and health impacts of dust in a cement processing industry: A case study of West African Portland cement, Ewekoro and Sagamu. Niger. J. Res. Prod., 13: 208-214.
  54. Obasi, R.A., P.O. Obisesan and E.O. Borisade, 2007. A petro-geochemical review of charnockites around ado-ekiti and Ikere areas of South-Western Nigeria. J. Eng. Earth Sci., 2: 63-66.
  55. Obasi, R.A., 2007. An evaluation of water resources development in Nigeria. J. Res. Eng., 13: 89-95.
  56. Oyinloye, A.O., R.A. Obasi and O.E. Aluko, 2006. Potability status of groundwater in Ise Orun area of South-Western Nigeria. J. Res. Phys. Sci., 3: 26-30.
  57. Ademilua, L.O., A.O. Oyinloye and R.A. Obasi, 2006. Geophysical investigation for ground water and aquifer characteristics at Ijesha-isu Ekiti Southwest Nigeria. J. Res. Phys. Sci., 2: 18-24.
  58. Obasi, R.A., E.A. Borisaie and F.A. Isife, 2005. Geochemical assessment of the ikogosi warm spring in Ekiti state, Southwest Nigeria. J. Applied Sci., 8: 4519-4529.
  59. Obasi, R.A., 2005. Geochemical classification of Ero dam Ssediments in Ikun-Ekiti, Southwest, Nigeria. J. Res. Prod., 6: 111-119.
  60. Obasi, R.A., O. Balogun and O. Ajayi, 2004. Physico-biochemical investigation of river ireje in ekiti state southwestern, Nigeria. J. Applied Sci., 7: 4124-4134.
  61. Obasi, R.A. and A.O. Oyinloye, 2004. An assessment of physical and geochemical characteristics of Isan-Ekiti Clay deposits: Implications on industrial applications. J. Res. Eng., 1: 23-28.
  62. Adebimpe, R.A., R.A. Obasi and O.A. Olasehinde, 2004. Environmental assessment of an abandoned gold mine at Itagunmode and Environs. J. Res. Eng., 1: 28-33.
  63. Obasi, R.A. and O. Balogun, 2001. Water quality and environmental impact assessment of water resources in Nigeria in the next two decades development. Afr. J. Environ. Stud., Port Harcourt, 2: 232-235.
  64. Obasi, R.A. and N.O. Anyanwu, 2001. Hydrogio-biological examination of hand-dug well water in Ado-Ekiti, Ekiti State. Afr. J. Environ. Stud., Dev. Africa Consortium, Port Harcourt, 2: 223-227.
  65. Obasi, R.A. and F.A. Isife, 2000. Manpower needs for the solid mineral subsector in Nigeria: A critical overview. Afr. J. Bus. Eco. Res., Port Harcourt., 1: 171-173.
  66. Isife, F.A., R.A. Obasi and O. Balogun, 2000. Electrical resistivity and self potential Investigation for lead-zinc mineralization of enyimba area, Ebonyi state. J. Biol. Phys. Sci., Ondo State University, Ado-Ekiti, 1: 135-148.