Petrology and Metamorphic Pressure-Temperature Evolution for the Trans-Saharan Orogenic Belt in Nigeria
（ナイジェリアに産出するサハラ縦断造山帯の岩石学および変成温度圧力経路）

Ugwuonah, E.N., Obiora, S.C., 2011. Geothermometric and geobarometric signatures of metamorphism in the Precambrian Basement Complex rocks around Keffi, North-Central Nigeria. Ghana Journal of Science. Vol. 51, 73 - 87.

Odumodu, C.F.R., Ugwuonah, E.N., Ephraim, B.E., 2015. Characterization of Diagenetic Processes of the Late Maastrichtian-Danian Limestones in Ohafia, Ozu Abam and Arochukwu Areas of Southeastern Nigeria. Journal of Natural Sciences Research, 5, 40-46.

Ugwuonah, E.N., Tsunogae, T., Obiora, S.C., 2015. Metamorphic P-T evolution of garnet-staurolite-biotite and garnet-biotite schist from Keffi, north-central Nigeria: Geothermobarometry and mineral equilibrium modeling. Abstract Volume, 2015 IAGR Annual Convention & 12th International Conference on Gondwana to Asia (Tsukuba, Japan), International Association for Gondwana Research Conference Series, 21, pp.114. H27.10.22

Ugwuonah, E.N., Tsunogae, T., Obiora, S.C., 2016. Metamorphic P-T evolution of garnet-staurolite-biotite pelitic schist and amphibolite from Keffi, north-central Nigeria: Geothermobarometry, mineral equilibrium modeling and P-T path. Journal of African Earth Sciences, 129, 1-16.
doi: 10.1016/j.jafrearsci.2016.12.005
http://www.sciencedirect.com/science/article/pii/S1464343X16304034