Microbial hydrocarbon gases in the Witwatersrand Basin, South Africa: Implications for the deep biosphere

Ward, J. A., Slater, G. F., Moser, D. P., Microbial hydrocarbon gases in the Witwatersrand Basin, South Africa: Implications for the deep biosphere, Geochim. Cosmochim. Acta, 68, 3239-3250