Historic element compositions of benthic foraminifera in sediments from the Helgoland mud area, southern North Sea

Here, the Cd/Ca and Pb/Ca ratios in the two benthic foraminifera species Elphidium excavatum and Ammonia tepida are presented in order to assess the impact of enhanced anthropogenic heavy metal input in historical times on these foraminifera. The foraminifera shells were picked from sediment core GeoB 4801-1, that was collected from the Helgoland mud area, German Bight, southern North Sea, during RV Meteor cruise M40/0. The obtained elemental records span the last ~300 years (for the stratigraphy of this core see Boxberg et al. 2021, https://doi.org/10.1007/s00367-019-00592-0). Element compositions were obtained by ICP-MS at the MARUM, Bremen.

本数据集公开了两种底栖有孔虫（benthic foraminifera）——掘穴希望虫（Elphidium excavatum）与温暖卷孔虫（Ammonia tepida）的镉钙比（Cd/Ca）与铅钙比（Pb/Ca）数据，旨在评估历史时期人为活动引发的重金属输入增强对这类有孔虫的影响。本次研究的有孔虫壳体采自沉积物岩芯GeoB 4801-1，该岩芯由“流星号”科考船（RV Meteor）于航次M40/0期间，采集自北海南部德国湾的黑尔戈兰泥质区。所获元素记录的时间跨度约为过去300年（该岩芯的地层学信息详见Boxberg等2021年发表的研究，https://doi.org/10.1007/s00367-019-00592-0）。元素组成通过电感耦合等离子体质谱法（ICP-MS）于不来梅MARUM实验室完成测定。