a) BOOKS ALREADY PUBLISHED:

1). Oluyide, P.O. and Okunlola ,O.A. 2007. An integrated approach to the study of mineralization in Jibiya area, of Katsina state, Nigeria. Occasional publication No11, Nigerian Geological Survey Agency, Federal Ministry of Mines and Steel Development publication 81p. ISBN: 978-30187-1-X

2 Okunlola, O.A. Ayoade, E.A., and Oluyide, P.O. 2011. Geology of Shaki area. Explanation of 1: 250,000 Sheet 49. Bulletin 45. Nigerian Geological Survey Agency, Federal Ministry of Mines and Steel Development. 148p. ISBN: 978-978-088-472-7

b) CHAPTERS IN BOOKS ALREADY PUBLISHED:

3. Elueze, A.A. and Okunlola, O. A., 2003. Industrial projects in non metallic minerals in Southwestern Nigeria. 2003. In A.A. Elueze (ed) Prospects for investment in mineral resources of Southwestern Nigeria. Nigerian Mining and Geosciences Society publication. 27–39.

4) Elueze, A. A. and Okunlola, O.A., 2003. Potential for rock polishing enterprises in Southwestern Nigeria. In A. A. Elueze (Ed). Prospects for Investment in Mineral resources of Southwestern Nigeria. 55 – 59. Nigerian Mining and Geosciences Society publication.

5. Okunlola, O. A. and Ogedengbe, O., 2003. Investment potential of gemstone occurrence in Southwestern Nigeria. In A.A. Elueze (Ed) Prospects for investments in mineral resources of Southwestern Nigeria. Nigerian Mining and Geosciences Society Publication. 41-47

6. Okunlola O.A. and Owoyemi K.A. 2011: Compositional Characteristics of Geophagic clays in parts of southern Nigeria. Book of proceedings. 1st International Conference on clays in Africa and 2^nd conference on geophagic clays in South Africa pp290-305.

7. Okunlola.O.A 2015: Geochemistry of Geophagic clays of Africa 2015 Geophagia in Africa eds G.E Ekose. Lambert Academic Publishing, Germany.

8. Ezoura E., Scheinder G., Nassir E., Hassana N.R., Abdulrahname B., Abdelmajid N., Noeman .V., Allan .M., Vasconcenlos .L., Costa .L., Al-wosabi .M., Alsubhary .A., Mabunton Nguru .P., Okunlola .O.A., Hellum S., Andrianaus .L., Soby S., Beatrice .K., Garby .M., Mohsen H., Anki .F., Tee .J., Lattreche K., Omulo .M., Bohrowsky .P. 2015: Geoheritage and Geoparks in Africa and Middle East: challenges and perspective. Erraimi et al eds from Geoheritage to Geoparks. Geoheritage, Geoparks, Geotourism, Springer International Publishing. Switzerland 2015

c) ARTICLES IN REFEREED/EDITED CONFERENCE PROCEEDINGS

9). Okunlola, O. A. 1993 Geochemical Anomalies as potential hazards instigators, perspective for a regional appraisal in Nigeria In: M. E. Offodile K. M. Onuoha (eds) Natural and Manmade hazards. Proceedings of international workshop on Natural and Man made Hazards. 183 – 197.

10)Oluyide, P. O. and Okunlola, O. A. 1993 Hill slope wash and rock avalanche on Nandu area Gwantu district Jemaa L.G.A. Kaduna. In: M. E. Offodile and K. M. Onuoha (eds). Natural and Man made hazards. Proceedings of international workshop on Natural and Man Made Hazards. 199 – 213.

11) Okunlola, O. A., 1995 A synoptic survey of some alternate industrial usages of Nigerian Carbonate Deposits. In: E. O. Damisa (ed) Coll. of Engineering Conf. Series 2: 143 – 150.

12) Okunlola, O. A. 1998: Specialty metal Potential of Nigeria. In: Uche, J., Ohiwherei F. and Bassey E. (eds) Proceedings first mining in Nigeria conf. Fed. Mininstry of Solid Minerals Nigeria publication. 67-90.

13) Okunlola O.A and Omitogun A. 2014 Inventory and environmental effects of active and abandoned artisanal mining sites of rare metals and gold mineralization in parts of Southwestern Nigeria. Proceedings of the closing workshop of the IGCP /SIDA projects 594 and 606 Prague, Czech Republic, May 26-28 2014 pp155-159

PATENT: Nil

d) ARTICLES THAT HAVE APPEARED IN LEARNED JOURNALS:

14) Okunlola, O. A. and Ocan, O.O., 2002. The expected environmental impact and mitigation studies of organized mining of rare metal (Ta-Sn-Nb) pegmatites around Keffi area, Central Nigeria. Journal of Environmental Extension 3: 64-68

15) Elueze, A.A. and Okunlola, O.A., 2003 Petrochemical and Petrogenetic Characteristics of metasedimentry rocks of Lokoja – Jakura Schist belt Central Nigeria. Journal of Mining and Geology 39.1: 21 – 28.

16). A. Okunlola and P. A. King. 2003. Process test work for the recovery of tantalite-columbite concentrates from rare metal bearing pegmatites of Nasarawa area central Nigeria. Global Journal of Geological Sciences 1.1: 95-103.

17) Okunlola, O.A., Ogedengbe, O. and Ojutalayo, A., 2003. Compositional features and industrial appraisal of the Baba Ode talc occurrence, south western Nigeria. Global Journal of Geological sciences 1:1: 63-72.

18) Elueze, A.A. and Okunlola, O. A., 2003. Geochemical features, petrogenetic affinity of Precambrian amphibolites of Burum area, central Nigeria. Journal of Mining and Geology 39.2: 1 – 9.

19) Abimbola A. F., Ojo A. M., Okunlola O. A. and Oguntoyinbo F. I. 2002. Agrogeological studies of limestone, phosphate, gypsum occurrences in the Dahomey Basin, SW Nigeria in relation to soil acidity amelioration. Nigerian Journal of Science 36.2: 119-128.

20) Elueze, A.A. and Okunlola, O. A., 2003. Compositional features and industrial appraisal of metamorphosed carbonate rocks of Burum-Jakura Area, central Nigeria. Mineral Wealth 128: 41-54.

21) Okunlola, O. A. 2005. Metallogeny of tantalum–niobium Mineralization of Precambrian pegmatites of Nigeria.Mineral Wealth 137/2005:38-50.

22) Okunlola, O.A. and Udoudo, O. B. 2005 Geological setting, Petrochemical features and age of rare metal mineralization of Pegmatites of Komu area South western Nigeria. UNESCO –ANSTI African Journal of Science and Technology Engineering Series 7.1: 96-110.

23) Okunlola, O. A. and Soetan, O. 2006. Geoenvironmental assessment of surface water and stream sediments in the area around iron ore mining site of Itakpe Okene, Central Nigeria. Mineral Wealth 141/2006: 27-35.

24) Okunlola, O. A., Akintola, A. I. and Egbeyemi, R.O. 2006. Compositional features Petrogenetic affinity of Precambrian amphibole – Schist of Sepeteri Area – Southwestern Nigeria. Global Journal of Geological Sciences 4.2. 199-207

25) Okunlola, O. A. and Somorin, E. B. 2006. Compositional features of Precambrian Pegmatites of Itakpe Area, Central Nigeria. Global Journal of Geological Sciences 4.2: 2006.

26). Tijani, M.N., Okunlola, O.A. and Abimbola, A.F., 2006. Lithogenic Concentrations of trace metals in soils and saprolites over crystalline basement rocks: A case study from SW Nigeria. Journal of African Earth Sciences 46: 427-438.

27) Okunlola, O.A. and Jimba, S. 2006. Compositional trends in relation to Ta-Nb mineralization in Precambrian pegmatites of Aramoko –Ara – Ijero area, Southwestern Nigeria. Journal of Mining and Geology 42.2: 113-126.

28). Okunlola, O. A. and Anikulapo, F.A. 2006. Compositional characteristics and industrial qualities of talcose rock of Erin Omu area, south western Nigeria. Journal of Mining and Geology 42.2: 105-112.

29) Okunlola,O.A., Oladunjoye,M.A. and Osinowo,O. 2007. The geological setting and integrated geophysical investigation for Pb-Zn Mineralisation at Izom, Central Nigeria. European Journal of Scientific Research 18:3. 269-388

30) Tijani, M.N., Okunlola, O.A., and Ikpe, E.U. 2007. Geochemical assessment of water and bottom sediments contaminations of Eleyele lake catchment, Ibadan. Southwestern Nigeria. European journal of Scientific Research 19:1.105-120

31)Okunlola,O.A,, and Akintola, A.I., 2007 Geochemical features and rare metal (Ta-Nb ) potentials of Precambrian pegmatites of Sepeteri area, Southwestern Nigeria. Ife Journal of Science 9:2:203-214

32) Okunlola,O.A., Akintola, A.I., and Egbeyemi, R.O.,2007 Geological setting, petrochemistry and petrogenetic affinity of Precambrian amphibolite of lema Ndeji area, Central Nigeria. Mineral wealth 144/2007: 47-55

33) Okunlola,O.A., 2008 Compositional characteristics and functional industrial application of Itakpe clay occurrence, Central Nigeria. EuropeanJournal of scientific research 19:3. 453-461

34) Okunlola,O.A and Akintola,A.I., 2008 Compositional features and rare metal Ta-Nb potentials of Precambrian pegmatite of Lema-Ndeji area Central Nigeria. Mineral Wealth 149/2008 pp 43-53

35) Elueze,A.A., kehinde- Phillips,O.O., and Okunlola,O.A., 2008 Geochemical and petrogenetic trends of syenite and charnockitic rock of Oke Iho and Osuntedo areas , Southwestern Nigeria. Journal of Mining and Geology Vol.44 (1) pp21-35

36) Okunlola ,O.A. and Oyedokun, O.M., 2009 Compositional trends and raremetal (Ta-Nb) mineralization potential of pegmatite and associated lithologies of Igbeti area, Southwestern Nigeria.. RMZ Materials and Geoenvironment. Vol 56 no.1 p38-53

37) Okunlola,O.A.and Ocan O.O.,2009 Rare metal (Ta-Sn-Li- Be )distribution in Precambrian Pegmatites of Keffi area, Central Nigeria. Nature andScience ;7(7) pp90-99

38)Olorunfemi, A.O., Olarewaju,V O. Okunlola,O.A., and Adesiyan,T.A.,2009 Compositional features and industrial appraisal of talcose rocks of Esie area, Southwestern Nigeria. Mineral wealth 150/2009: 33-42

39) Okunlola,O.A. and Okoroafor R.E., 2009 Geochemical and petrogenetic features of schistose rocks of the Okemesi fold belt, Southwestern Nigeria. RMZ Materials and Geoenvironment Vol 56, No2, pp148-162

40) Okunlola, O.A., Adeigbe,O.C.,and Oluwatoke, O.O., 2009 Compostional and petrogenetic features of schistose rocks of Ibadan area. Earth Science Research Journal formerly (GEOFISICA COLUMBIANA)Vol.13 No2, 29-43

41) Olorunfemi A.O, Olarewaju,V.O., and Okunlola,O.A., 2010 Petrochemistry and genetic indicators of talcose rocks of Esie area, Southwestern Nigeria. RMZ- Materials and Geo environment. Vol.57 No3 pp363-386

42) Okunlola,O.A and Akinola O.2010 Petrochemical characteristics of Precambrian rare metal pegmatite of Oke Asa area, Southwestern Nigeria: Implication for Ta-Nb mineralization .RMZ-Materials and Geo environment Vol .57 No. 4 525-538

43) Okunlola,O.A., and P.O.Oluyide 2009. Physicochemical features and industrial appraisal of Nahuta Clay deposit, Northwestern Nigeria. Records of Nigerian Geological Survey Vol 12

44) Okunlola O.A., and P.O.Oluyide, 2009. Lithostructural, compositional features and industrial potential of Precambrian carbonate deposits of the Federal Capital Territory, Nigeria. Records of Nigerian Geological Survey Agency. Vol.12

45) Okunlola,O.A. and A.A. Sosanya 2011 Functional industrial appraisal of Shale deposits of Dahomey basin, Southwestern Nigeria. Mineral Wealth 161/2011 p33-42

46) Okunlola O.A. Akinola, O.A and Olorunfemi A.O., 2011. Petrochemical characteristics and industrial features of talcose rocks in Ijero Area, Southwestern Nigeria. Ife Journal of Science .Vol. 13 No 2

47) Akintola,A.I., Omosanya,K.O., Ajibade. O.M, Okunlola, O.A., Kehinde- Philips O.O. 2011 Petrographic evaluation of Precambrian Pegmatites of Awo area, Southwestern Nigeria. International Journal of basic and applied sciences IJBAS-IJENS vol 11 No 4

48) Lapworth, D.J., knights, K.V., key, R.M., Johnson. C.C., Ayoade, E., Adekanmi M.A., Arisekola T.M. Okunlola O.A., Backman, B., Eklund M., Everett P.A., Lister T.R., Ridgway., Watts J.M., Kemp S.J., Pitfield E.J.,2012: Geochemical mapping using stream sediments in west central Africa: Implications for environmental studies and mineral exploration in West Africa. Applied Geochemistry, Elsevier, Vol 27. 1035-1052

49) Akintola A.I., Ikhane P.R., Okunlola,O.A., Akintola G.O., Oyebolu O.O., 2012: Compositional features of Precambrian pegmatites of Ago Iwoye area, Southwestern Nigeria. 2012. Journal of Ecology and Natural Environment Vol 4(3) pp71-87

50) Okunlola,O.A and Idowu ,O. 2012 The Geochemistry of claystone-shale deposits from the Maastrichian Patti Formation, Southern Bida Basin. Earth Sciences Research Journal Vol. 16 No 2, pp 57-67

51) Okunlola,O.A. and Akinola,O.A 2012 Physicochemical characteristic and industrial potentials of in situ clay occurrence around Ijero Ekiti area Southwestern Nigeria. Journal of Science Research Vol. 11(1): 99-100

52) Tubosun,I.A., Tchokossa,P., Okunlola,O.A, Balogun,F.A., Fasasi, M.K., Ekhaeyemhe. 2013. Natural radioactivity associated with mining of rare metal pegmatite of Oke-Ogun field, Sepeteri, Southwestern Nigeria. 2013. International Journal of Science and Technology. Vol 3 (10). Pp 350-356.

53) Tubosun,I.A., Tchokossa,P., Balogun,F.O., Okunlola,O.A., Owoade,L.A., and Adesanmi,C.A. 2014 Measurement of radiation exposure due to natural radionuclides in gemstone mining area in Olode, Ibadan, Southwestern Nigeria. 2014. British Journal of Applied Science and Technology. Vol. 4(18). pp 2620-2630.

54) Okunlola, O. A. and Egbulem .C. 2015: Geological setting, compositional and economic appraisal of clay shale occurrence in the Itu-Mbonuso/Iwere area, Southeastern Nigeria. Journal of Geophagy and Geology, vol. 7: no 1

55) Okunlola, O. A. and Afolabi .A.A. 2015: Geochemical characteristics and quality of groundwater around Okemesi fold belt, Southwestern Nigeria. Environment and natural resources research vol 5, No 1.CCSE Canada

56). Okunlola, O. A. and Owoyemi K.A. 2015: Compositional characteristics of Geophagic clays of parts of southwestern Nigeria. Earth Sciences Research Vol. 4 No 2. Canadian Center of Science and Education Canada

57) Okunlola,O.A and Muritala, H. 2015 Geological setting, compositional features and economic evaluation of marble deposits around Alaguntan, southwestern Nigeria MATERIALI in GEOOKOLJE . RMZ -Materials and Geoenvironment. Vol.62 No.3 Slovakia

PUBLISHED MONOGRAPHS/TECHNICAL REPORTS:

58) Elueze A.A., Bolarinwa A.T., Nton M.E, Okunlola O.A, 2002: Report on the Preliminary Investigation of alleged earth tremors in Odo-Ona Elewe, Ibadan. National Technical Committee on Earthquake Phenomenon, Federal Ministry of Science and Technology Abuja, 6p

59) Elueze A.A., Gbadegesin A.S, Abimbola A.F, Okunlola O.A, Bolarinwa A.T., Nton M.E,Ehinola O.A, Adeigbe O.C, Oladunjoye M.A 2005: Identifying the roles of local communities including women and child labour in the development of artisanal and small scale mining in Africa (Africa Mining Partnership project prepared by Nigeria, Mali and Ethiopia) Report, Nigerian Geological Survey Agency. Ministry of Solid Minerals Development, Abuja, 42pp

60) Okunlola, O. A. 2005. Tantalum prospects in Southwestern Nigeria. Mineral Prospect Series. MPS/01/Jan 05. Nigerian Geological Survey Agency Publication. 5p.

61) Okunlola, O. A. 2005. Gemstone prospects in Southwestern Nigeria. Geological Survey of Nigeria. Mineral Prospect Series, MPS/02/Jan 05. Nigerian Geological Survey Agency Publication 5p

62) Elueze A.A., Oshin O., Abimbola A.F, Bolarinwa A.T., Okunlola O.A, Nton M.E,2006: Field training manual in gold and pegmatite exploration in Ilesha area. Nigerian Geological Survey Agency. Ministry of Solid Minerals Development, Abuja, 42pp