Original data of the NYD Lake on Inexpressible Island within the Terra Nova Bay.

This database contains the raw data generated and compiled for the study of the NYD isolation basin on Inexpressible Island, Antarctica. It includes original radiocarbon measurements from eight AMS ¹⁴C dated samples obtained from a 37 cm sediment core, along with the full-depth grain size distribution data measured at 1 cm intervals. Geochemical and isotopic data—comprising TOC, TN, TS, total phosphorus, δ¹³C, and δ¹⁵N—are also provided for each sampled depth. In addition, the database incorporates δ¹³C and C/N ratio data from other lakes on Inexpressible Island, allowing for broader spatial comparison of organic matter sources. Supplementary radiocarbon dates from raised beach deposits on Inexpressible Island, compiled from previous literature, are included to support regional sea-level reconstructions. Please note that the sample IDs in the original dataset do not correspond to depth numbers; for example, sample ID 0 corresponds to a depth of 37 cm.本数据库收录了为开展南极难言岛（Inexpressible Island）上NYD隔离盆地的相关研究而生成并整理的原始科研数据。数据集包含取自37 cm沉积岩芯的8个加速器质谱（AMS）¹⁴C测年样品的原始放射性碳测年结果，以及以1 cm为间隔测定的全深度粒度分布数据。各采样深度对应的地球化学与同位素数据亦同步提供，涵盖总有机碳（TOC）、总氮（TN）、总硫（TS）、总磷、δ¹³C及δ¹⁵N指标。此外，本数据库还纳入了难言岛其他湖泊的δ¹³C与碳氮比（C/N）数据，可支撑更广空间尺度下的有机质来源对比研究。数据库同时收录了从既往公开文献中整理得到的、难言岛抬升海滩沉积的补充放射性碳测年数据，用以辅助区域海平面重建工作。请注意，原始数据集内的样品编号与沉积深度并不一一对应，例如样品编号0对应的沉积深度为37 cm。