Hallbauer, DK 1975: The plant origin of the Witwatersrand 'carbon'. - Minerals, Sci. & Engineering7: 111-131. [RLL List # 93-45 / Rec.# 7532] Keywords: MINERALS/ GOLD/ SOUTH AFRICA/ PRECAMBRIAN/ FOSSILS
Abstract: 36 fig. (12 in color). [Precambrian lichens, especially, "played a role in the concentration fo gold that, partly due to biological processes, preserved the internal structure of those plants" in South Africa.]
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