Media type: E-Article Title: Sulfur and mercury MIF suggest volcanic contributions to Earth’s atmosphere at 2.7 Ga Contributor: Zerkle, A.L.; Claire, M.W.; Di Rocco, T.; Grassineau, N.V.; Nisbet, E.G.; Sun, R.; Yin, R. Published: European Association of Geochemistry, 2021 Published in: Geochemical Perspectives Letters Extent: 48-52 Language: Not determined DOI: 10.7185/geochemlet.2124 ISSN: 2410-339X; 2410-3403 Keywords: Geochemistry and Petrology ; Geology ; Environmental Chemistry Footnote: Access State: Open Access