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. 2018 Feb 13;8:2931. doi: 10.1038/s41598-018-21262-8

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© The Author(s) 2018

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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Coesite and other mineral inclusions in detrital garnet (grain number 378). Grain photographed in three different z-positions of the focal plane (z = 0 equates to the polished surface) and corresponding schematic illustrations showing the mineral paragenesis. Out of focus zones are coloured in black. Blue characters indicate electron microprobe measurement spots as designated in Supplementary Table 1. Abbreviations: Afs – alkalifeldspar; Coe – coesite; Opx – orthopyroxene (probably enstatite); Grt –garnet; Mc – mica (phlogopite–biotite); Pl – plagioclase; Qz – quartz.