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. 2019 Dec 4;19(12):1474–1489. doi: 10.1089/ast.2018.1963

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© Daniel Carrizo et al., 2019; Published by Mary Ann Liebert, Inc.

This Open Access article is distributed under the terms of the Creative Commons License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited.

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FIG. 2. — Geochemical composition of the bulk organic fraction in the Dallol samples; (a) concentration of total organic carbon (% of the sample dry weight), (b) stable carbon isotopic composition of organic carbon (‰ PDB), and (c) stable sulfur isotopic composition of total sulfur (red) and sulfur from sulfate (black) (‰ VCDT).