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Marvin Moroeng

Senior Lecturer
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). He is currently appointed as a Senior Lecturer in the Department of Geology at the University of Johannesburg. His research revolves around coal, i.e., coal geology, petrology, and geochemistry (both organic and inorganic). Current research interests include: (1) the origin/formation of coal macerals; (2) understanding the development and evolution of palaeomires using a combination of geochemistry (stable isotopes of carbon and nitrogen) and petrology; and, (3) the effects of igneous intrusions on various coal properties. He supervises honours, masters, and doctoral students in projects relating to coal geology and geochemistry.

Dr. Moroeng is also 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). He is an associate member of the International Committee for Coal and Organic Petrology (ICCP), and a member of both The Society for Organic Petrology (TSOP) and the European Association of Organic Geochemists (EAOG). He has published several peer-reviewed articles in international journals.


    • Undergraduate teaching: Applied Engineering and Environmental Geology (APG02B2) and Field Techniques 1 (GLG00A1)
    • Honours Teaching: Economic Geology (GLG8X06; Coal and Organic Geochemistry) and Honours Research Projects (GLG8X00)


    • Moroeng, O.M., Murathi, B., Wagner, N.J., 2024. Enrichment of rare earth elements in epigenetic dolomite occurring in contact metamorphosed Witbank coals (South Africa). International Journal of Coal Geology, 104405.
    • Sitto-Kaunda, K., Moroeng, O., Makhubela, T., 2023. Relatability’s role in formative assessment and feedback practices of young Black academics in an access university. Scholarship of Teaching and Learning in the South 7(3), 78-98.
    • Chitlango, F.Z., Wagner, N.J., Moroeng, O.M., 2023. Characterization and pre-concentration of rare earth elements in density fractionated samples from the Waterberg Coalfield, South Africa. International Journal of Coal Geology 275, 104299.
    • Moroeng, O.M., 2022. Effects of contact metamorphism on δ13C, δ15N, and XPS nitrogen functional forms of inertinite-rich Witbank coals (South Africa): Indications for possible alteration by hydrothermal fluids. Chemical Geology 612, 121135.
    • Mahooana, P.E., Moroeng, O.M., Wagner, N.J., 2022. Petrology of the A and B Seams, Ermelo Coalfield (South Africa): Indications for changing palaeoenvironmental and sedimentary conditions. International Journal of Coal Geology 263, 104135.
    • Wheeler, A., Shen, J., Moore, T.A., Moroeng, O.M., Liu, J., 2022. Palaeoecology and palaeoclimate of an Early Cretaceous peat mire in East Laurasia (Hailar Basin, Inner Mongolia, China). Palaeogeography, Palaeoclimatology, Palaeoecology 599, 111050.
    • Mangs, A.D., Wagner, N.J., Moroeng, O.M., Lar, U.A., 2022. Petrographic composition of coal within the Benue Trough, Nigeria and a consideration of the paleodepositional setting. International Journal of Coal Science & Technology 9 (35), 1-24.
    • Matlala, I.V., Moroeng, O.M., Wagner, N.J., 2021. Macromolecular structural changes in contact metamorphosed inertinite-rich coals from the No. 2 Seam, Witbank Coalfield (South Africa): Insights from petrography, NMR and XRD. International Journal of Coal Geology 247, 103857.
    • 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.