Rare element concentrations measured on filtered seawater of water bottle samples during POLARSTRERN cruise ANT-XXIV/3 (GIPY5) ...

• Main Authors: Hathorne, Ed C, Stichel, Torben, Brück, Bastian, Frank, Martin
• Format: Dataset
• Language: English
• Published: PANGAEA 2015
• Subjects: Event label; Date/Time of event; Latitude of event; Longitude of event; Elevation of event; DEPTH, water; Pressure, water; Type; Yttrium, dissolved; Lanthanum, dissolved; Cerium, dissolved; Praseodymium, dissolved; Neodymium, dissolved; Samarium, dissolved; Europium, dissolved; Gadolinium, dissolved; Terbium, dissolved; Dysprosium, dissolved; Holmium, dissolved; Erbium, dissolved; Thulium, dissolved; Ytterbium, dissolved; Lutetium, dissolved; CTD/Rosette; CTD; Inductively coupled plasma - mass spectrometry ICP-MS; ANT-XXIV/3; Polarstern; Antarc*; Antarctic; Southern Ocean
• Online Access: https://dx.doi.org/10.1594/pangaea.844740; https://doi.pangaea.de/10.1594/PANGAEA.844740

The concentrations of rare earth elements (REEs) in seawater display systematic variations related to weathering inputs, particle scavenging and water mass histories. Here we investigate the REE concentrations of water column profiles in the Atlantic sector of the Southern Ocean, a key region of the global circulation and primary production. The data reveal a pronounced contrast between the vertical profiles in the Antarctic Circumpolar Current (ACC) and those to the south of the ACC in the Weddell Gyre (WG). The ACC profiles exhibit the typical increase of REE concentrations with water depth and a change in the shape of the profiles from near linear for the light REEs to more convex for the heavy REEs. In contrast, the WG profiles exhibit high REE concentrations throughout the water column with only the near surface samples showing slightly reduced concentrations indicative of particle scavenging. Seawater normalised REE patterns reveal the strong remineralisation signal in the ACC with the light REEs ... : Y, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, and Lu concentrations measured in filtered seawater by online pre-concentration ICP-MS ...