Dissolved neodymium concentrations and isotopic composition from the full water column in the South Pacific Ocean during SONNE cruise SO289 (GEOTRACES section GP21)
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| Format: | Dataset Open Access |
| Sprache: | en |
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PANGAEA
2026
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| _version_ | 1867170141931831296 |
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| author | Zhang, Zhouling Xu, Antao Hathorne, Ed C Gutjahr, Marcus Frank, Martin |
| author_facet | Zhang, Zhouling Xu, Antao Hathorne, Ed C Gutjahr, Marcus Frank, Martin |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | This dataset contains dissolved neodymium (Nd) concentrations and radiogenic Nd isotope compositions from full water-column seawater profiles collected in the South Pacific Ocean during the GEOTRACES section GP21 (Chile to New Caledonia) aboard R/V SONNE (cruise SO289) between 23 February and 4 April 2022. Between 10 and 40 L of seawater were collected using 10 L Niskin bottles mounted on a stainless-steel CTD rosette. Beginning at Station 18, an additional 40 L of surface seawater was collected using a trace-metal-clean tow-fish to enable Nd isotope measurements at expected low concentrations. Samples for Nd isotope analysis were pre-concentrated onboard by coprecipitation with Fe hydroxide and later purified in the home laboratory before analysis by MC-ICP-MS (Thermo Neptune Plus). Nd concentrations were determined from 1 L acidified seawater aliquots spiked with a ¹⁵⁰Nd spike, processed via Fe-hydroxide coprecipitation and AG 50W-X8 cation exchange purification, and measured by isotope-dilution MC-ICP-MS with external reproducibility better than 0.2%. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_989250 |
| institution | PANGAEA |
| language | en |
| publishDate | 2026 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Dissolved neodymium concentrations and isotopic composition from the full water column in the South Pacific Ocean during SONNE cruise SO289 (GEOTRACES section GP21) Zhang, Zhouling Xu, Antao Hathorne, Ed C Gutjahr, Marcus Frank, Martin CTD; CTD/Rosette; CTD-RO; Date/Time of event; Density, sigma, in situ; Depth, bathymetric; DEPTH, water; Event label; FISH; Fish undulating, recording system tow; GEOTRACES GP21; LATITUDE; LONGITUDE; Nd concentration; Nd isotopic composition; Neodymium, dissolved; Neutral density; ocean circulation; Oxygen; Pressure, water; Salinity; SO289; SO289_0_Underway-3; SO289_10-2; SO289_1-2; SO289_12-2; SO289_14-2; SO289_16-2; SO289_18-2; SO289_19-3; SO289_2-2; SO289_22-2; SO289_23-2; SO289_24-4; SO289_26-2; SO289_28-2; SO289_3-1; SO289_31-2; SO289_33-2; SO289_35-2; SO289_36-2; SO289_37-2; SO289_38-2; SO289_4-1; SO289_41-2; SO289_42-2; SO289_43-1; SO289_44-2; SO289_5-1; SO289_6-3; SO289_7-2; SO289_8-2; Sonne_2; South Pacific Ocean; Station label; Temperature, water; ε-Neodymium; ε-Neodymium, standard deviation; ε-Neodymium, standard error This dataset contains dissolved neodymium (Nd) concentrations and radiogenic Nd isotope compositions from full water-column seawater profiles collected in the South Pacific Ocean during the GEOTRACES section GP21 (Chile to New Caledonia) aboard R/V SONNE (cruise SO289) between 23 February and 4 April 2022. Between 10 and 40 L of seawater were collected using 10 L Niskin bottles mounted on a stainless-steel CTD rosette. Beginning at Station 18, an additional 40 L of surface seawater was collected using a trace-metal-clean tow-fish to enable Nd isotope measurements at expected low concentrations. Samples for Nd isotope analysis were pre-concentrated onboard by coprecipitation with Fe hydroxide and later purified in the home laboratory before analysis by MC-ICP-MS (Thermo Neptune Plus). Nd concentrations were determined from 1 L acidified seawater aliquots spiked with a ¹⁵⁰Nd spike, processed via Fe-hydroxide coprecipitation and AG 50W-X8 cation exchange purification, and measured by isotope-dilution MC-ICP-MS with external reproducibility better than 0.2%. |
| title | Dissolved neodymium concentrations and isotopic composition from the full water column in the South Pacific Ocean during SONNE cruise SO289 (GEOTRACES section GP21) |
| topic | CTD; CTD/Rosette; CTD-RO; Date/Time of event; Density, sigma, in situ; Depth, bathymetric; DEPTH, water; Event label; FISH; Fish undulating, recording system tow; GEOTRACES GP21; LATITUDE; LONGITUDE; Nd concentration; Nd isotopic composition; Neodymium, dissolved; Neutral density; ocean circulation; Oxygen; Pressure, water; Salinity; SO289; SO289_0_Underway-3; SO289_10-2; SO289_1-2; SO289_12-2; SO289_14-2; SO289_16-2; SO289_18-2; SO289_19-3; SO289_2-2; SO289_22-2; SO289_23-2; SO289_24-4; SO289_26-2; SO289_28-2; SO289_3-1; SO289_31-2; SO289_33-2; SO289_35-2; SO289_36-2; SO289_37-2; SO289_38-2; SO289_4-1; SO289_41-2; SO289_42-2; SO289_43-1; SO289_44-2; SO289_5-1; SO289_6-3; SO289_7-2; SO289_8-2; Sonne_2; South Pacific Ocean; Station label; Temperature, water; ε-Neodymium; ε-Neodymium, standard deviation; ε-Neodymium, standard error |
| url | https://doi.org/10.1594/PANGAEA.989250 |