Abstract
Multiple sulfur isotopes in Paleoarchean pyrite record valuable information on atmospheric processes and emerging microbial
activity in the early sulfur cycle. Here, we report quadruple sulfur isotope data (32S, 33S, 34S, 36S) analyzed by secondary
ion mass spectrometry from pyrite in a 3.26–3.23 Ga sedimentary barite deposit in the Barberton Greenstone Belt,
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