Media type: E-Article Title: Provenance and Geochemical Variations in Shales of the Mesoarchean Witwatersrand Supergroup Contributor: Nwaila, Glen; Frimmel, Hartwig E.; Minter, Wyatt E. L. imprint: University of Chicago Press, 2017 Published in: The Journal of Geology Language: English DOI: 10.1086/692329 ISSN: 0022-1376; 1537-5269 Keywords: Geology Origination: Footnote: