Supporting information-2019TC005623-The role of arc-arc collision in accretionary orogenesis: Insight from ca. 320 Ma tectono-sedimentary transition in the Karamaili area, NW China

This supporting material contains one text file (Texts S1), five supplementary tables (Table S1-S5), and three supplementary figures (Figure S1-S3). Text S1 describes the analytical methods employed in this paper. Table S1 presents the U-Pb analytical results of 342 detrital zircons from the six sandstone samples (K23-12, SJ-1, SJ-7-1, SJ-19, K24, and SJ-28). Table S2 lists the zircon U-Pb analytical results of the four volcanic rock samples (SJ-2, SJ-26, 13D1-6, and 13T3-3). Tables S3 presents the in-situ Lu-Hf isotopic analyses of 245 detrital zircons (<400 Ma) from the six sandstone samples. Compiled data are presented in Tables S4 and S5, which contain 153 radiometric ages of >300 Ma intermediate-felsic magmatic rocks (Table S4) and 566 Lu-Hf isotopes of crystallized and inherited zircons from the magmatic rocks (Table S5) in the Junggar and Yemaquan blocks. Figure S1 shows thecathodoluminescence (CL) images of representative zircon grains (a, b) andTh/U ratios versus U-Pb ages of zircons from the rocks in this study. Figure S2 displays the detrital zircon age distribution for individual sandstone sample used in this study.Figure S3 shows the spatial distribution (a) and the geochemical plots (b and c) of the Carboniferous rift and arc magmatic rocks in the Junggar and Yemaquan blocks.

本配套材料包含1份文本文件（Texts S1）、5张补充表（Table S1~S5）以及3张补充图（Figure S1~S3）。文本S1详述了本文所采用的分析测试方法。表S1列出了6件砂岩样品（K23-12、SJ-1、SJ-7-1、SJ-19、K24及SJ-28）中342颗碎屑锆石的U-Pb分析测试结果。表S2汇总了4件火山岩样品（SJ-2、SJ-26、13D1-6及13T3-3）的锆石U-Pb分析测试结果。表S3展示了6件砂岩样品中245颗年龄小于400 Ma的碎屑锆石的原位Lu-Hf同位素分析数据。表S4与S5收录了整理后的汇总数据集：其中表S4包含准噶尔地块与野马泉地块内153件年龄大于300 Ma的中酸性岩浆岩的放射成因年龄数据，表S5则收录了该区域岩浆岩中566颗结晶锆石与继承锆石的Lu-Hf同位素数据。图S1展示了本研究涉及岩石的代表性锆石颗粒的阴极发光（CL）图像（a、b），以及研究岩石锆石的Th/U比值与U-Pb年龄散点图。图S2呈现了本研究中单件砂岩样品的碎屑锆石年龄分布特征。图S3展示了准噶尔地块与野马泉地块内石炭纪裂谷及弧岩浆岩的空间分布（a）与地球化学图解（b、c）。