Sulfur x-ray absorption spectroscopy data from bedrock shale, soil, and floodplain sediment from the East River, Colorado watershed

This dataset includes sulfur x-ray absorption near edge spectroscopy (XANES) data collected on solid samples as a part of the Watershed Function Scientific Focus Area (SFA) located in the Upper Colorado River Basin. The data were collected in order to investigate the speciation of sulfur and degree of shale weathering in solid samples across the watershed and their impact on riverine export of sulfate. Solid samples, including shale, hillslope soil, and floodplain sediment samples collected in 2016-2018, were analyzed by bulk XANES. Density fractions of hillslope soil, including a light fraction representing particulate organic matter and a heavy fraction representing minerals are also analyzed by bulk XANES. Micro-focused XANES on a weathered shale sample (PLM6, 2.7 m) was also performed. Sample locations are included in the 'sample meta data.csv' file, and XANES data for each sample type are included in csv files.本数据集包含针对固体样品采集的硫X射线吸收近边结构光谱（X-ray absorption near edge spectroscopy, XANES）数据，相关采集工作隶属于位于科罗拉多河上游流域的流域功能科学聚焦区（Watershed Function Scientific Focus Area, SFA）项目。本次数据采集旨在探究流域范围内固体样品中硫的赋存形态、页岩风化程度，以及二者对河流硫酸盐径流输出的影响。研究团队于2016-2018年采集了包括页岩、山坡土壤及河漫滩沉积物在内的固体样品，并通过整体XANES分析完成检测。针对山坡土壤的密度分级组分——其中轻级分代表颗粒态有机质，重级分代表矿物组分——研究团队同样通过整体XANES开展了分析。此外，还对一处风化页岩样品（PLM6，深度2.7 m）开展了微聚焦XANES测试。样品的采样位置信息收录于'sample meta data.csv'文件中，各类样品的XANES数据则分别存储于对应的csv格式文件内。