Supplementary Information Materials for the G-Cubed submission by Zakharov et al.

The supporting information is provided for the publication https://doi.org/10.1029/2022GC010741<em>. </em>The upload contains identification of MGL opal-CT as well as the results of the SIMS and EMPA measurements in cherts. This file also features δD values plotted against the triple O-isotope values of cherts. The Secondary Ion Probe Mass Spectrometry (SIMS) measurements are included as the .xslx table (Data Set S1) with analytical conditions, raw measurements and VSMOW-calibrated values. The Electron Microprobe (EMPA) analyses are provided in the .xslx file (Data Set S2). The Data Set S2 is separated by tabs for individual sample. Images feature the analyzed areas, including petrographic image, reflected light and the SIMS points.本辅助信息对应学术论文https://doi.org/10.1029/2022GC010741。本次上传的数据集包含MGL CT型蛋白石（MGL opal-CT）的鉴定结果，以及硅质岩中二次离子探针质谱（Secondary Ion Probe Mass Spectrometry，SIMS）与电子探针显微分析（Electron Microprobe，EMPA）的测试成果。本文件还收录了以δD值与硅质岩三氧同位素值对照绘制的相关图像数据。其中，二次离子探针质谱的测试数据以.xlsx表格（数据集S1）形式提供，涵盖分析条件、原始测试结果及经维也纳标准平均海水（VSMOW）校准后的数值。电子探针显微分析的测试结果收录于.xlsx文件（数据集S2）中。数据集S2以制表符分隔各单个样品的对应数据。图像资料包含分析区域的相关内容，包括岩相照片、反射光显微图像以及SIMS测试点位标注图。