Zhang, Zhouling; Xu, Antao; Hathorne, Ed C; Gutjahr, Marcus; Browning, Thomas J; Gosnell, Kathleen; Liu, Te; Steiner, Zvi; Kiko, Rainer; Yuan, Zhongwei; Liu, Haoran; Achterberg, Eric Pieter; Frank, Martin (2024): Dissolved neodymium isotopic composition, rare earth element and trace metal concentrations of surface water in the South Pacific Ocean from the SONNE cruise SO289 (GEOTRACES cruise GP21) [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.971875
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Abstract:
This dataset contains dissolved radiogenic neodymium (Nd) isotopes, rare earth element (REE) and trace metal (TM) concentrations of surface water in the South Pacific Ocean collected during the cross-Pacific GEOTRACES GP21 expedition (Chile-New Caledonia) with the German research vessel SONNE (SO289), which took place between February 23 and April 4, 2022. 20-40 L of surface seawater was collected either from the Niskin bottles attached to a stainless steel CTD rosette or from a trace-metal-clean underway tow-fish for Nd isotopes and REE concentrations. TM samples for dissolved manganese (dMn), dissolved iron (dFe), and dissolved aluminum (dAl) were collected from the tow-fish.
Samples for Nd isotopes were pre-concentrated onboard by adsorption on Fe hydroxide precipitates and measured with a Neptune Plus Multicollector-Inductively Coupled Plasma Mass Spectrometer (MC-ICP-MS) after purification in the home laboratory. REE concentrations were pre-concentrated offline using a SeaFAST system and analyzed on a Thermo Element XR ICP-MS coupled with a CETAC "Aridus 2" desolvating nebulizer to reduce oxide formation. Dissolved Mn and Fe were pre-concentrated using SeaFast (SC-4 DX; ESI) and then measured on the same Thermo Element XR ICP-MS. Dissolved Al was analyzed shipboard using a Carey Eclipse fluorimeter. Phytoplankton pigment analysis (chlorophyll-a concentrations) were measured using a reverse-phase high-performance liquid chromatography (HPLC) (Dionex UltiMate 3000 LC system, Thermo Scientific).
Related to:
Zhang, Zhouling; Xu, Antao; Hathorne, Ed C; Gutjahr, Marcus; Browning, Thomas J; Liu, Te; Steiner, Zvi; Kiko, Rainer; Yuan, Zhongwei; Liu, Haoran; Achterberg, Eric Pieter; Frank, Martin (2024): Substantial trace metal input from the 2022 Hunga Tonga-Hunga Ha'apai eruption into the South Pacific. Nature Communications, 15(1), 8986, https://doi.org/10.1038/s41467-024-52904-3
Project(s):
Coverage:
Median Latitude: -28.359783 * Median Longitude: -145.446087 * South-bound Latitude: -33.610000 * West-bound Longitude: 172.050000 * North-bound Latitude: -25.720000 * East-bound Longitude: -71.730000
Date/Time Start: 2022-02-23T17:18:26 * Date/Time End: 2022-04-03T15:12:00
Minimum DEPTH, water: 3 m * Maximum DEPTH, water: 6 m
Event(s):
SO289_0_Underway-3 * Latitude Start: -33.603980 * Longitude Start: -71.732800 * Latitude End: -25.832970 * Longitude End: 171.998950 * Date/Time Start: 2022-02-23T17:39:00 * Date/Time End: 2022-04-03T21:10:00 * Elevation Start: -112.5 m * Elevation End: -3391.7 m * Location: South Pacific Ocean * Campaign: SO289 (GEOTRACES GP21) * Basis: Sonne_2 * Method/Device: Fish undulating, recording system tow (FISH) * Comment: Towed Trace Metal Clean Fish for trace metal analysis
Parameter(s):
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
1266 data points