Bulk sediment coarse and fine size fractions of gravity core SO264_28-2@en

Sediment cores from the volcanic Emperor Seamount Chain obtained during RV SONNE cruise SO264 (SONNE-EMPEROR) in August 2018 allow us to reconstruct lateral changes in the subarctic and subtropical gyres in the pelagic North Pacific over the last ~3.4 million years. This dataset comprises bulk sediment size fraction percentages from gravity core SO264-28-2, which was recovered from Suiko Seamount (44°51.547 N 170°03.997 E) from 1935 m water depth. Sampling and sieving studies were carried out from 0.00–7.62 m core depth at ~2 cm spatial resolution.2018年8月，通过RV SONNE科考航次SO264（航次代号SONNE-EMPEROR）获取的火山成因天皇海山链（Emperor Seamount Chain）沉积物岩芯，可为我们重建过去约340万年间北太平洋远洋区亚极环流与副热带环流的横向变化提供数据支撑。本数据集包含重力岩芯SO264-28-2的全沉积物粒度组分百分比数据，该岩芯采自水深1935米的修威台海山（Suiko Seamount，北纬44°51.547′，东经170°03.997′）。研究人员在岩芯深度0.00–7.62 m范围内以约2厘米的空间分辨率完成了采样与筛分工作。