Early pyroxene crystallisation deep below mid-ocean ridges: Supplementary data of gabbro phase mapping

The data repository contains part of the original microscopy imagery datasets from optical microscopy, electron microscopy backscattered electron (SEM-BSE), and Synchrotron X-ray fluorescence microscopy (XFM) experiments presented in Ubide et al. (2025) 'Early pyroxene crystallisation deep below mid-ocean ridges' by Teresa Ubide*, David T Murphy, Robert B Emo, Michael Jones, Marco Acevedo Zamora, and Balz S Kamber Specifically, it includes the QuPath software (Bankhead et al., 2017) project including rock (mid-ocean ridge olivine gabbro) thin sections 81-R5w and 80-R6w. The project contains the semantic image segmentation outputs generated with the Pixel Classifier and MatLab script described in Acevedo Zamora et al. 2023 (see code repository). Sample 80-R6w was segmented using image annotations in QuPath and an input comprising a false-colour Cr-Ti-Ca XFM image, cross-polarised light maximum intensity (XPL-max), and plane-polarised light (PPL-0 degrees) photomicrographs. Similarly, Sample 81-R5w used a false-colour Cr-Ti-Ca XFM image, deep sparse autoencoder image representation of XFM (after Acevedo Zamora et al., 2024), cross-polarised light (XPL-0 degrees), plane-polarised light (PPL-0 degrees) photomicrographs, and recoloured SEM-BSE (after Acevedo Zamora et al. 2023). The segmentation of both samples provided a conservative estimate of the locations of relict clinopyroxene cores (~4% volume of cpx mask), mantles, and rims in a similar phase map colour scheme for better comparison. If there are questions regarding the utilisation of the data, contact Marco Acevedo ([e-mail] ; [e-mail]).本数据集仓库包含Ubide等人2025年发表于《洋中脊深部早期辉石结晶作用》（Early pyroxene crystallisation deep below mid-ocean ridges）的光学显微镜、背散射电子扫描电镜（SEM-BSE）以及同步辐射X射线荧光显微镜（XFM）实验的原始显微成像数据集的一部分，作者为Teresa Ubide*、David T Murphy、Robert B Emo、Michael Jones、Marco Acevedo Zamora与Balz S Kamber。 具体而言，本数据集包含QuPath软件（Bankhead等人，2017）项目，该项目涵盖洋中脊橄榄辉长岩岩石薄片81-R5w与80-R6w。该项目包含使用Acevedo Zamora等人2023年所述的像素分类器与MatLab脚本生成的语义图像分割结果（详见代码仓库）。 样本80-R6w的分割基于QuPath中的图像标注，以及由伪彩色Cr-Ti-Ca XFM图像、交叉偏振光最大强度投影（XPL-max）图像与平面偏振光（PPL-0°）显微照片组成的输入数据集。 类似地，样本81-R5w的分割则采用了伪彩色Cr-Ti-Ca XFM图像、基于XFM的深度稀疏自编码器图像表征（引自Acevedo Zamora等人，2024）、交叉偏振光（XPL-0°）图像、平面偏振光（PPL-0°）显微照片，以及经重着色处理的SEM-BSE图像（引自Acevedo Zamora等人，2023）。 两个样本的分割结果均采用统一的相图配色方案，保守估算了残余单斜辉石核心（约占单斜辉石掩膜体积的4%）、幔部与边缘的位置，以方便对比分析。 若对数据集的使用存在疑问，请联系Marco Acevedo（邮箱：[e-mail]；[e-mail]）。