PerspectiveGeology

Genesis of the World's Largest Gold Deposits

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Science  13 Sep 2002:
Vol. 297, Issue 5588, pp. 1815-1817
DOI: 10.1126/science.1076515

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Summary

Controversy has surrounded the formation of the largest gold deposits on Earth in Witwatersrand, South Africa. As Frimmel explains in his Perspective, the report by Kirk et al. should lay the controversy to rest by providing age data for the gold. The results indicate that the gold was brought into its host rocks by mechanical erosion of gold-bearing hinterland and fluvial transport into a sedimentary basin.