Supporting Information-Dataset for Georgatou et al 2024: Metals, volatiles and lithostratigraphy of Brothers submarine volcano

<b>Table S1</b>. List of samples, reporting sampling details (depth in in meters below sea level-mbsl from caldera floor/J-11 to caldera rim/J-18) and modal mineral and vesicle abundances based on Qemscan analysis.<b>Table S2</b>. Bulk major (XRF), minor (LA-ICP-MS) and trace (Lead Fire-Assay with ICP-MS) element geochemistry of samples corresponding to the vertical transect on the NE Caldera site.<b>Table S3</b>. Matrix/groundmass and interstitial silicate glass chemical composition obtained by EPMA and LA-ICP-MS.<b>Table S4</b>. Description and chemical composition of 62 melt inclusions obtained by EPMA and LA-ICP-MS.<b>Table S5.</b> Description and chemical composition of 66 apatite crystals obtained by EPMA.<b>Table S6a-c.</b>Composition for standards used for whole rock chemistry (-6a), for glass chemistry by EPMA (-6b, including known composition of ETNA secondary standards (Hughes et al., 2018)) and by LA-ICP-MS (-6c) .

**表S1**。样品列表，记录了采样细节（自破火山口底（J-11）至破火山口边缘（J-18）的水下深度，单位为米（meters below sea level, mbsl）），以及基于Qemscan分析得到的矿物模态丰度与气孔丰度。
**表S2**。东北破火山口点位垂直剖面对应样品的全岩主量元素（X射线荧光光谱法 (X-ray Fluorescence, XRF)）、次量元素（激光剥蚀电感耦合等离子体质谱法 (Laser Ablation Inductively Coupled Plasma Mass Spectrometry, LA-ICP-MS)）及微量元素（铅火试金-电感耦合等离子体质谱联用法）地球化学数据。
**表S3**。通过电子探针显微分析 (Electron Probe Micro-Analysis, EPMA) 与LA-ICP-MS获得的基质/岩基与填隙硅酸盐玻璃的化学成分。
**表S4**。通过EPMA与LA-ICP-MS获得的62个熔体包裹体的描述与化学成分。
**表S5**。通过EPMA获得的66颗磷灰石晶体的描述与化学成分。
**表S6a-c**。分别为全岩化学分析所用标准物质（-6a）、EPMA玻璃化学分析所用标准物质（-6b，包含ETNA二级标准物质的已知组成，Hughes等人，2018）以及LA-ICP-MS分析所用标准物质（-6c）的组成数据。