西北太平洋日本海LV53-23-1岩芯近6万年以来沉积物粒度数据集（晚更新世）

对位于西风环流下风区日本海中部LV53-23岩芯沉积物的粒度特征进行了研究， 重建了日本海末次冰期 (~60 ka)以来的西风环流演化历史和空间变化规律. 结果显示， 岩芯沉积物以粉砂为主且粒度频率分布曲线多呈单峰分布， 与现代日本黄沙和前人报道的邻近区域的岩芯粒度特征一致， 具有典型的风尘沉积特征. 众数粒组-粉 砂组分的中值粒径分析表明， 粉砂组分中值粒径可以用作岩芯沉积反映西风环流的替代性指标. 在亚轨道及千年 尺度上， 粉砂组分中值粒径在MIS3 期的冰阶-间冰阶千年尺度旋回与西风环流密切相关。
本数据集包括0-2 mm以0.15ф为间距的不同粒级含量变化、中值粒径、平均粒径、分选、偏度、峰态、砂、粉砂、粘土含量等信息。

We conducted a study on the grain size characteristics of sediments from sediment core LV53-23 located in the central Japan Sea, the downwind region of the westerly winds, and reconstructed the evolutionary history and spatial variation patterns of the westerly circulation in the Japan Sea since the Last Glacial Period (~60 ka). The results show that the core sediments are dominated by silt, and most of their grain size frequency distribution curves present unimodal distributions, which are consistent with the grain size characteristics of modern Japanese yellow sand and sediment cores from adjacent regions reported in prior studies, indicating typical aeolian sedimentary features. Analysis of the median grain size of the silt fraction, which serves as the mode grain size group, demonstrates that the median grain size of the silt fraction can act as a proxy indicator for the westerly circulation recorded by the core sediments. At suborbital and millennial scales, the millennial-scale stadial-interstadial cycles of the median grain size of the silt fraction during Marine Isotope Stage 3 (MIS3) are closely correlated with the westerly circulation.

This dataset contains data including variations in the contents of various grain size fractions from 0 to 2 mm with a 0.15 φ interval, as well as median grain size, mean grain size, sediment sorting, skewness, kurtosis, and the contents of sand, silt and clay.