Supporting information and dataset associated to the paper: Geochemical and geochronological record of the Andaman Ophiolite, SE Asia: from back-arc to forearc during subduction polarity reversal?

Data and Supporting Information for the manuscript titled<i>Geochemical and geochronological record of the Andaman Ophiolite, SE Asia: from back-arc to forearc during subduction polarity reversal?<br></i><br><i>Contents: </i><b><br></b><b>Table captions (Data and supporting information)<br><br></b><b>Table 1.</b> Geographic location and petrographic summary of the studied samples of Andaman ophiolites<br><b>Table 2.</b> Bulk rock geochemistry of selected samples of volcanic rocks from Andaman ophiolites<br><b>Table 3.</b> U-Pb data for zircon from Andaman samples<br><b>Supplementary Table 1.</b> Analyses for blanks, replicates and standards used for bulk rock analysis of volcanic rocks<br><b>Supplementary Table 2.</b> Compilation of the available bulk rock geochemical data of volcanic rocks from Andaman and Nicobar Islands (including the data obtained in the present study)<i><b><br></b></i><b>Figure captions (Supporting information)<br><br></b><b>Supplementary figure 1 </b>Typical morphologies of zircon in the three populations investigated. Numbers correspond to those in <b>Table 3</b>. The grains are about 70-150 micron long.<br><br><b>Supplementary figure 2</b> N-MORB (a,d,g,j,m,p); with emphasis on LILE (b,e,h,k,n,q) and chondrite (c,f,i,l,o,r) normalized spidergram for volcanic rocks of Andaman ophiolite.<br><br><b>Supplementary figure 3</b> (a,b,c,d) primitive mantle; (e,f,g,h) chondrite normalized spidergram for clinopyroxene trace element concentration of forearc peridotites from literatures. (i,j) Domain of forearc peridotite with clinopyroxene data from Daito ridge (Morishita et al. 2018b). Clinopyroxene trace element pattern of Rutland Island peridotite is also shown.<br><b><br></b><b>Supplementary figure 4</b> (a) AFM (Irvine and Baragar, 1971) plot and trace element-based alkalinity test diagram (Ross and Bédard, 2009) (b) Th/Yb-Zr/Y; (c) Y-Zr; (d) Yb-La, (e) Yb-Th for volcanic rocks of Andaman ophiolite<i><br></i><i><b>Note:</b></i><i><b><br></b></i><i>References in supporting information are cited in the main text and included in the reference list of the main paper.</i><i><br></i><i>All data including supporting information for the manuscript are available at Figshare https://doi.org/10.6084/m9.figshare.11396469.v7</i><br>

本数据集对应题为《东南亚安达曼蛇绿岩的地球化学与年代学记录：俯冲极性反转期间从弧后到弧前？》的学术手稿的相关数据与支撑材料。

内容清单：
表格说明（数据与支撑材料）
表1. 安达曼蛇绿岩研究样品的地理位置与岩相学总结
表2. 安达曼蛇绿岩火山岩选样的全岩地球化学数据
表3. 安达曼样品锆石的U-Pb定年数据
附表1. 火山岩全岩分析所用的空白样、平行样与标准样测试结果
附表2. 安达曼与尼科巴群岛火山岩已发表全岩地球化学数据汇编（含本研究获取的数据）

附图说明（支撑材料）
附图1 本次研究识别的三类锆石的典型形貌。编号与表3对应。锆石晶粒长度约70~150 μm。
附图2 安达曼蛇绿岩火山岩的正常洋中脊玄武岩（N-MORB）配分模式（a,d,g,j,m,p），重点展示了大离子亲石元素（LILE，b,e,h,k,n,q）与球粒陨石（c,f,i,l,o,r）标准化的微量元素蛛网图。
附图3 (a,b,c,d) 原始地幔标准化蛛网图；(e,f,g,h) 前人发表的弧前橄榄岩单斜辉石微量元素浓度的球粒陨石标准化蛛网图。(i,j) 取自Daito海岭（Morishita等，2018b）的弧前橄榄岩单斜辉石数据分布区间。同时展示了拉特兰岛橄榄岩的单斜辉石微量元素配分模式。
附图4 (a) AFM（Irvine与Baragar，1971）图解与基于微量元素的碱度判别图解（Ross与Bédard，2009）；(b) Th/Yb-Zr/Y图解；(c) Y-Zr图解；(d) Yb-La图解；(e) Yb-Th图解，均针对安达曼蛇绿岩的火山岩。

注：支撑材料中的参考文献已在正文中引用，并收录于主论文的参考文献列表。本手稿相关的全部数据（含支撑材料）均可在Figshare平台获取：https://doi.org/10.6084/m9.figshare.11396469.v7