Supporting information-2019TC005589-Sedimentary evolution and provenance of the late Permian–middle Triassic Raggyorcaka deposits in North Qiangtang (Tibet, Western China): Evidence for a forearc basin of the Longmu Co-Shuanghu Tethys Ocean

The supporting information includes 1 text, 4 figure and 5 tables. In the text S1, we describe both the conditions of the experimental instruments and processing method for the detrital zircon U-Pb dating and Lu-Hf isotopic analyses. Figure S1 shows the CL (cathodoluminescence) images of the dated detrital zircon grains. Figures S2 to S3 present integrated geochronological analyses of Raggyorcaka sandstone samples, including U-Pb concordia diagrams, calculated YC1-σ(2+)/YC2-σ(3+) MDAs and detrital zircon age-frequency diagrams. Figure S4 is an integrated stratigraphic columns for late Devonian–middle Permian deposits of Riwanchaka-Raggyorcaka in southern NQB. Table S1 lists all the lithofacies and their interpretations of the continental and marine sedimentary rocks used in this study. Tables S2 to S5 contain all the raw measurements that were used in the paper to deduce the paleo-current direction, clastic provenance, zircon U-Pb ages and their Hf isotopic values. Additionally, The footnotes of Tables S2 to S3 give a detailed description of the data format such as the abbreviations, while that of Tables S4 to S5 present the relevant calculation formulas.
It is noted that Table S4 shows all the raw data for the detrital zircon U-Pb dating and the filter criteria by which we determine the imperfect ones.

本辅助材料包含1份文本、4幅图及5张表格。在文本S1中，我们详述了碎屑锆石U-Pb定年（detrital zircon U-Pb dating）与Lu-Hf同位素分析（Lu-Hf isotopic analyses）所用实验仪器的参数条件及样品前处理方法。图S1为待测碎屑锆石颗粒的阴极发光（cathodoluminescence, CL）成像结果。图S2至S3展示了Raggyorcaka砂岩样品的综合年代学分析结果，包括U-Pb谐和图、经计算的YC1-σ(2+)/YC2-σ(3+)最大沉积年龄（Maximum Depositional Age, MDAs）及碎屑锆石年龄频率分布图。图S4为南羌塘地块（NQB）Riwanchaka-Raggyorcaka地区晚泥盆世至中二叠世沉积地层的综合柱状剖面。表S1汇总了本研究中所用陆相及海相沉积岩的全部岩相（lithofacies）类型及其沉积环境解释。表S2至S5收录了本文用于推导古流向（paleo-current direction）、碎屑物源（clastic provenance）、锆石U-Pb年龄及其Hf同位素数值的全部原始测试数据。此外，表S2与S3的脚注对数据格式（含缩写规则）进行了详细说明，而表S4至S5的脚注则给出了相关计算公式。需特别说明的是，表S4收录了碎屑锆石U-Pb定年的全部原始数据，以及我们用于甄别不合格测试数据的筛选标准。