Elemental analysis (Total C, Total Org. C, Total N, Total S, and CaCO3*) of bulk sediment from the Terrebonne Basin, Walker Ridge Block 313, Site H, Expedition UT-GOM2-2

This dataset contains total carbon, total organic carbon, total nitrogen, total sulfur, and calcium carbonate* elemental analysis data of sediment samples from whole round cores. Sample were measured at the University of New Hampshire using an Elementar Unicube CHNS elemental analyzer. See Expedition UT-GOM2-2 Methods: Sediment Geochemistry (Flemings et al., 2025a, https://doi.org/10.5281/zenodo.13971228). The attached readme file, previewed below, describes all the data files in this dataset and their contents. The readme file also contains links to where the data is presented in the expedition proceedings. Additional data you might expect to find in this dataset can instead be found at the following locations: All measurements presented were made on the resulting interstitial water whole round (IWR) squeeze cakes after pore water extraction. The pore water sample depths can be found in the curation dataset (http://doi.org/10.5281/zenodo.14926309). Download the file UT-GOM2-2 CORE LOG depths – sortable.xlsx, see tab “Section-piece log”, sample codes “IWR” for regular pore water/ interstitial waters whole rounds. Additional discrete samples were also acquired but not measured during the expedition. See tab “Sample-measurement log”, sample code “CNS”. *Bulk sediment total inorganic carbon (TIC) was calculated by difference where TIC (total inorganic carbon) = TC-TOC). CaCO3 weight percents were calculated by multiplying the IC weight percentages (IC = TC-TOC) by 8.33 to account for the non‑carbon mass fraction.本数据集包含全圆柱沉积物岩芯样品的总碳（Total Carbon, TC）、总有机碳（Total Organic Carbon, TOC）、总氮、总硫以及碳酸钙（Calcium Carbonate, CaCO₃）元素分析数据。所有样品均由新罕布什尔大学（University of New Hampshire）使用Elementar Unicube CHNS元素分析仪完成测试。详细信息请参阅《UT-GOM2-2航次方法：沉积物地球化学》（Flemings等，2025a，https://doi.org/10.5281/zenodo.13971228）。 如下预览的附属README文件，对本数据集内所有数据文件及其内容进行了说明，同时还提供了数据在航次会议论文集中的展示链接。 本数据集预期涵盖的额外数据可通过以下途径获取： 本次展示的所有测试均针对孔隙水提取后得到的间隙水全圆柱（Interstitial Water Whole Round, IWR）压滤饼开展。孔隙水样品的采集深度可在整理数据集（http://doi.org/10.5281/zenodo.14926309）中查询。请下载文件《UT-GOM2-2岩芯测井深度——可排序.xlsx》，在"Section-piece log"（分段测井）工作表中检索样本代码"IWR"，即可获取常规孔隙水/间隙水全圆柱样品的相关信息。本航次还采集了额外的离散样品，但未完成测试，相关信息可在"Sample-measurement log"（样品测试日志）工作表的样本代码"CNS"项下查看。 * 全样沉积物总无机碳（Total Inorganic Carbon, TIC）通过差值法计算得到，计算公式为：TIC = TC - TOC。碳酸钙的质量百分比则通过将无机碳（IC = TC - TOC）的质量百分比乘以8.33得到，以此校正非碳组分的质量占比。