Particulate trace element concentrations measured during four cruises in 2019 at locations around the Bermuda Atlantic Time-series Study (BATS) station

Particulate trace element concentrations were measured during 4 BATS cruises (March, May, August, November) in 2019 as part of the Bermuda Atlantic Iron Timeseries (BAIT) project. Three stations were sampled around the BATS station to 1800 meters (m) with a trace-metal clean rosette system. Collected water was passed through 0.45-micrometer (um) Supor membranes and subsequently subjected to both a weak acid leach and a total digest. Samples were analyzed via magnetic sector ICPMS for aluminum (Al), phosphorus (P), titanium (Ti), vanadium (V), manganese (Mn), iron (Fe), cobalt (Co), nickel (Ni), copper (Cu), zinc (Zn), cadmium (Cd), barium (Ba), lead (Pb), and thorium (Th). Data have been used to partition particulate Fe into lithogenic, biogenic, and authigenic fractions, and to understand controls on Fe cycling in the upper ocean over a seasonal cycle.

作为百慕大大西洋铁时间序列（Bermuda Atlantic Iron Timeseries，BAIT）项目的一部分，2019年在4次百慕大大西洋时间序列研究（Bermuda Atlantic Time-series Study，BATS）航次（3月、5月、8月、11月）期间测量了颗粒态微量元素浓度。使用痕量金属洁净的采水器系统，在BATS站周边的3个站点采集了深度达1800米（m）的水样。采集的水样通过0.45微米（μm）的Supor滤膜，随后进行弱酸浸提和全消解处理。样品通过磁扇区电感耦合等离子体质谱仪（ICPMS）分析铝（Al）、磷（P）、钛（Ti）、钒（V）、锰（Mn）、铁（Fe）、钴（Co）、镍（Ni）、铜（Cu）、锌（Zn）、镉（Cd）、钡（Ba）、铅（Pb）和钍（Th）的含量。这些数据用于将颗粒态铁划分为岩源、生源和自生组分，并理解季节性周期内上层海洋中铁循环的控制因素。