Ex-situ oxygen 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 ex-situ oxygen 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. Ex-situ oxygen was determined onboard using amperometric Clark type oxygen microelectrodes (Unisense, DK).

本数据集涵盖2019年在欧洲协作型JPI Oceans MiningImpact项目框架下，于松文号科考船（R/V SONNE）SO268航次中，针对小型疏浚实验后受扰动站位获取的沉积岩芯（MUC）开展的异位氧（ex-situ oxygen）岩芯剖面测量数据。SO268航次期间的科研工作属于MiningImpact项目第二阶段（深海采矿的环境影响与风险）的组成部分，旨在评估太平洋克拉里昂-克利珀顿区（CCZ）多金属结核深海开采所带来的环境影响。异位氧的测定工作在科考船上完成，采用安培型克拉克式氧微电极（丹麦Unisense公司生产）进行检测。