Musa, O. K., Kurowska, E. E., Krzykawski, T. and Onimisi, J. A. (2021) “X-ray diffraction studies of onshore mud volcanoes in parts of the Upper Benue Trough, northeastern Nigeria”, Geology, Geophysics and Environment, 47(4), pp. 203–216. doi: 10.7494/geol.2021.47.4.203.