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Marvin Moroeng

Name: Marvin Moroeng
Location: C1 Lab 308 Auckland Park Kingsway Campus
Department of Geology Staff  Staff Members

Contact Details:
Tel: +27 (0)11 559 4470


About Dr Marvin Moroeng


Dr. Marvin Moroeng holds a PhD in Geology (Coal Geology and Geochemistry) from the University of Pretoria (awarded in 2019), supervised by Dr. James Roberts and Prof. Nikki Wagner (UJ). He was first appointed as an Assistant Lecturer in the Department of Geology at the University of Johannesburg (UJ) in 2016 and was subsequently promoted to the position of Lecturer in 2018, following the completion of his doctoral studies. His current research areas, which he is undertaking in collaboration with Prof. Nikki Wagner and a number of postgraduate students at UJ, can be grouped into three main themes: (1) the origin of macerals in South African coals; (2) understanding the development and evolution of palaeomires using a combination of geochemistry (stable carbon isotopes) and petrology; and, (3) the effects of igneous intrusions on various coal properties. The research is undertaken mainly using a combination of petrological and geochemical techniques.


Beyond this, Dr. Moroeng is currently engaged in research into the coals of Inner Mongolia (China), in collaboration with the International Research Center for Coal Geology which is hosted by the China University of Mining and Technology (CUMT), Xuzhou. The collaborators on this project include Prof. Jian Shen, Prof. Shifeng Dai, Dr. Jingjing Liu (all based at CUMT) and Prof. Tim Moore (Cipher Coal Pty. Ltd., Australia). Dr. Moroeng is an Associate Member of the International Committee for Coal and Organic Petrology (ICCP) and a Member of the European Association of Organic Geochemists (EAOG). He has thus far published seven (7) papers in international journals, with five (5) as lead author.


  • Undergraduate teaching: Applied Engineering and Environment Geology (2nd year, 4th quarter)
  • Honours Teaching: Economic Geology (Coal and Organic Geochemistry)


  • Moore, T.A., Moroeng, O.M., Shen, J., Esterle, J.S., Pausch, R.C., 2021. Using Carbon Isotopes and Organic Composition to Decipher Climate and Tectonics in the Early Cretaceous: An Example from the Hailar Basin, Inner Mongolia, China. Cretaceous Research 118, 104674.
  • Liu, J., Dai, S., Hower, J.C., Moore, T.A., Moroeng, O.M., Nechaev, V.P., Petrenko, T.I., French, D., Graham, I.T., Song, X., 2020. Stable isotopes of organic carbon, palynology, and petrography of a thick low-rank Miocene coal within the Mile Basin, Yunnan Province, China: implications for palaeoclimate and sedimentary conditions. Organic Geochemistry 149, 104103.
  • Moroeng, O.M., Mhuka, V., Nindi, M.M., Roberts, R.J., Wagner, N.J., 2019. Comparative study of a vitrinite-rich and an inertinite-rich Witbank coal (South Africa) using pyrolysis-gas chromatography. International Journal of Coal Science & Technology 6 (4), 621-632.
  • Moroeng, O.M., Wagner, N.J., Hall, G., Roberts, R.J. 2018. Using δ15N and δ13C and nitrogen functionalities to support a fire origin for certain inertinite macerals in a No. 4 Seam Upper Witbank coal, South Africa. Organic Geochemistry 126, 23-32.
  • Moroeng, O.M., Keartland, J.M., Roberts, R.J., Wagner, N.J., 2018. Characterization of coal using electron spin resonance: implications for the formation of inertinite macerals in the Witbank Coalfield, South Africa. International Journal of Coal Science & Technology 5 (3), 385-398.
  • Moroeng, O.M., Wagner, N.J., Brand, D.J., Roberts, R.J., 2018. A Nuclear Magnetic Resonance study: Implications for coal formation in the Witbank Coalfield, South Africa. International Journal of Coal Geology 188, 145-155.
  • Moroeng, O.M., Roberts, R.J., Bussio, J.P., Dixon, R.D., 2017. Self-heating Potential of Coal inferred from Elemental Data – A Case-study of the Witbank Coalfield of South Africa. Energy & Fuels 31 (11), 11811-11817.