Bulk sediment composition for sediment core SO268/2_122-1 (MUC-24) at a disturbed site after a small-scale dredge experiment during RV SONNE cruise SO268/2 in the CCZ, Pacific Ocean

This dataset comprises downcore measurements of the bulk sediment composition for a sediment core (MUC) retrieved from disturbed sites after a small-scale dredge experiment in the framework of the European collaborative JPI Oceans MiningImpact project onboard R/V SONNE cruise SO268 in 2019. The scientific work during cruise SO268 was part of the second phase of the MiningImpact project (Environmental impacts and risks of deep-sea mining) and is designed to assess the environmental impacts of deep-sea mining of polymetallic nodules in the Clarion-Clipperton Zone (CCZ) in the Pacific Ocean. After performing total acid digestions, the sediments were analyzed using ICP- AES (iCAP 7400, Thermo Scientific) at the Marine Geochemistry Lab, Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven.

本数据集收录了2019年欧洲联合JPI Oceans MiningImpact项目框架下，于R/V SONNE航次SO268期间，在小型疏浚实验后从受干扰区域获取的沉积岩心（MUC）的柱状沉积物组成下沉积层测量数据。在SO268航次的科学研究中，该部分工作属于MiningImpact项目的第二阶段（深海采矿的环境影响与风险评估），旨在评估太平洋克拉里永-克利珀顿区（CCZ）多金属结核深海采矿的环境影响。经总酸消化处理后，沉积物在阿尔弗雷德·魏格纳研究所海洋地球化学实验室（隶属于赫尔姆霍兹极地与海洋研究中心，不莱梅港）采用电感耦合等离子体质谱-原子发射光谱法（iCAP 7400，赛默飞世尔科技）进行分析。