1982 -2004: Member, Faculty of Physical Sciences, University of Nigeria (UNN) Postgraduate Committee.
1982 - 2004: Member, Faculty of Physical Sciences, UNN, Academic Planning Committee.
1984 - 1986: Member, Faculty of Physical Sciences, UNN, Committee on Popularization of Science.
1984 - 1990: Member, Faculty of Physical Sciences, UNN, Junior Staff Housing Committee.
1990 - Date: Professor of Engineering Geology, UNN.
1993 - 1997: Head, Department of Geology, UNN: Was in charge of the general administration of the Department.
1993 - 1997: Associate Dean, Faculty of Physical Sciences, UNN:
1997-1999: Dean, Faculty of Physical Sciences, UNN
2002 to 2009 Professorial Chair Occupant, Petroleum Technology Development Fund Chair in Geology, University of Nigeria, Nsukka. OTHER COMMUNITY, NATIONAL AND PROFESSIONAL SERVICES RENDERED
1987: Worked for the National Technical Committee on natural disasters: the work involved visiting, studying and evaluating gully erosion and landslide sites in various parts of the nation and advising the Federal Government on remediation.
1989 to 2000: Member, International Union of Geological Sciences Working Group on Landslides: represented Africa in this international professional group that evaluated landslides throughout the world and advised the United Nations Educational, Scientific, and Cultural Organisation (UNESCO) on evaluation and remediation of the natural disaster.
1989- 2000: Member, International Association of Engineering Geology (IAEG) Commission on landslides: represented Africa in this international professional group that studied and disseminated information to nations and the scientific community on how to manage landslides with respect to prevention and remediation
1988 - 2002: President, Nigerian Association of Engineering Geology (NAEG). Work involved chairing and pioneering activities of this National professional body.
1992 - 2005: Associate Editor and Member, Editorial Board of the Journal of Mining and Geology.
1999: Chairman, National University Commission (NUC) accreditation team for the Northwestern Zone of Nigeria.
1999: Chairman, National Board for Technical Education (NBTE) workshop team for National standards for Geology programme, held at The Polytechnic Ibadan. .
2000 - 2004: Member, Board of Directors, University of Nigeria Nsukka (UNN) Microfinance Bank. 2004 - Date: Chairman, Board of Directors, University of Nigeria Nsukka Microfinance Bank.
Area of Specialization
Membership of professional bodies
Publications (Articles and Journals)