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. 2017 Jun 28;4(6):170331. doi: 10.1098/rsos.170331

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© 2017 The Authors.

Published by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/, which permits unrestricted use, provided the original author and source are credited.

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Figure 3. — Stable carbon isotope, δ¹³C values derived from human bone carbonate from Soro Mik'aya Patjxa (δ¹³C_diet), plant charcoal from Soro Mik'aya Patjxa (δ¹³C_plant), modern C₃ plants above and below 2500 m.a.s.l. in northern Chile [29], and camelids above 3900 m.a.s.l. in northwest Argentina [32]. Dashed red lines show the range of values for Soro Mik'aya Patjxa human bone carbonate for comparison. All reported values include corrections for well-known fractionation effects (see the electronic supplementary material).