Lithological influence on Li isotope fractionation during silicate weathering

Data Repository Items for our upcoming manuscript on "Lithological influence on Li isotope fractionation during silicate weathering" submitted to Geochimica et Cosmochimica Acta.

2 files are attached in this repository:
Manuscript Tables: Table 1, Table 2, Table 3 and Table 4, Table 5, Table S1, and Table S2 located in the manuscript and supplementary material are included in separate sheets.
Supplementary Data File 1: The supplementary data file contains the complete dataset for all individual samples and elements measured in this study.

Table captions:
Table 1. Information on sampling localities

Table 2. Selected in-situ geochemical data, dissolved load elemental concentrations and Li isotopic ratios from all localities. Full elemental data are in supplementary file 1.
a Mean value from all repeated samples from each season is presented.
b “W” indicates mean value from wet summer season samples. “D” indicates mean value from dry winter season values.
c “n” indicates how many repeated samples obtained to calculate mean values
d “ND” indicates this variable was not determined during analyses.

Table 3. Li concentrations and isotopic values from bedload and bedrock from all localities. The lithology of the bedrock digested is also listed.
a “ND” indicates this variable was not determined during analyses.

Table 4. Breakdown of bedload clay mineralogical abundances.

Table 5. Rayleigh and batch-reactor model parameters and results. See text for full description and explanation of parameters

Table S1: Certified reference materials (CRM) and their errors for lithium isotopic measurements. Run 1 includes only wet season samples from July-August 2019. Run 2 includes both dry and wet season samples from January 2020 and September 2021 respectively. “n” indicates how many repeated measurements for each CRM during the run.

Table S2: Comparison between charge balance- and titration-derived bicarbonate concentrations for select dry season samples (10 out of 15 possible samples).

本数据集对应即将提交至《Geochimica et Cosmochimica Acta》（地球化学与宇宙化学学报）、题为《硅酸盐风化过程中岩性对锂同位素分馏的影响》的待刊手稿。
本数据集仓库共包含2个文件：
1. 手稿附表：包含手稿正文及补充材料中的表1、表2、表3、表4、表5与表S1、表S2，各表格以独立工作表形式存储。
2. 补充数据文件1：该文件包含本研究中所有实测单个样品及对应元素的完整数据集。
各表说明如下：
表1 采样点位信息
表2 所有点位的原位地球化学数据、溶解载荷元素浓度及锂同位素比值。完整元素数据见补充数据文件1。
注：
a 呈现各季重复样品的平均值。
b “W”代表湿润夏季样品的平均值，“D”代表干燥冬季样品的平均值。
c “n”代表用于计算平均值的重复样品数量。
d “ND”代表该变量在分析过程中未被测定。
表3 所有点位的推移质与基岩的锂浓度及同位素数值，同时列出所分析基岩的岩性信息。
注：a “ND”代表该变量在分析过程中未被测定。
表4 推移质黏土矿物相对丰度的分类统计。
表5 瑞利（Rayleigh）分馏与批式反应器模型的参数及计算结果。相关参数的完整说明与解释见正文。
表S1 锂同位素测量所用的认证参考物质（Certified Reference Materials, CRM）及其误差。Run 1仅包含2019年7-8月的湿润季样品；Run 2分别包含2020年1月的干燥季与2021年9月的湿润季样品。“n”代表每次分析中对各认证参考物质的重复测量次数。
表S2 部分干燥季样品（15个备选样品中的10个）的电荷平衡法与滴定法测得的碳酸氢根浓度对比。