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. 2017 Oct 18;8:1015. doi: 10.1038/s41467-017-00855-3

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© The Author(s) 2017

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.

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Fig. 1 — Depth of the thermocline and amount of rainfall in the eastern tropical Indian Ocean during the LGM and the late Holocene. a Average values of the difference between sea surface and thermocline temperatures (∆T) as a measure of thermocline depth (reverse scale) at three sites. Coloured symbols represent the average values for the late Holocene (filled) and the LGM (open), and correspond to the sites indicated in the inset map. Circles represent the difference between G. ruber and P. obliquiloculata, stars and diamonds between G. ruber and N. dutertrei and G. tumida, respectively. Vertical bars indicate 95% confidence intervals based on t-distributed samples in each time interval (Methods and Supplementary Data 1). The chronology of each period is established independently by ¹⁴C accelerator mass spectrometry dating, each average value comprises a minimum of six samples (Methods, Supplementary Data 1). b As in a but for the average δD values from plant waxes (n-C₃₁-alkanes) by including an additional record (SO189-119KL). LGM values are corrected for relative changes in ice volume (Methods)