Porewater geochemistry of sediment core POS536_73-1 (BC6)@en

This dataset consists of the results from pore water geochemical analyses of sediment cores that were taken during the cruise POS536 in August 2019. The research area was the North Atlantic gyre southwest of the Azores. During this cruise, samples were collected for the JPI Oceans project HOTMIC. The research objective of HOTMIC is the investigation of distribution and transport of microplastic particles from the European coast to the garbage accumulations in the North Atlantic gyre. Sediment samples were taken with a box corer and subsampled with MUC liners. MUC liner subsamples from three stations were sliced for geochemical analyses and pore water from the sediment slices was extracted with rhizones. Geochemical analyses include the quantification of major anions and cations using inductively coupled plasma atomic emission spectroscopy and ion chromatography, respectively.本数据集收录了2019年8月POS536航次采集的沉积物岩芯孔隙水地球化学分析成果。本次研究区域位于亚速尔群岛西南侧的北大西洋环流海域。为推进JPI Oceans项目HOTMIC的研究，本次航次完成了样品采集工作。HOTMIC的研究目标为探究微塑料颗粒从欧洲海岸向北大西洋环流海域内海洋垃圾堆积区的分布与迁移规律。沉积物样品采用箱式采泥器（box corer）采集，并通过MUC衬管完成分样。针对3个采样站位的MUC衬管分样进行切片以开展地球化学分析，沉积物切片的孔隙水通过根隙采样器（rhizones）提取。地球化学分析内容包括分别采用电感耦合等离子体原子发射光谱法（inductively coupled plasma atomic emission spectroscopy）与离子色谱法（ion chromatography）对主要阴、阳离子进行定量测定。