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| Main Authors: | , , , |
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| Format: | Dataset Open Access |
| Language: | en |
| Published: |
PANGAEA
2024
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| Online Access: | https://doi.org/10.1594/PANGAEA.968708 |
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| _version_ | 1867168228637147136 |
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| author | Waltemathe, Henning Struve, Torben Rehbein, Matthias Pahnke, Katharina |
| author_facet | Waltemathe, Henning Struve, Torben Rehbein, Matthias Pahnke, Katharina |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | This dataset includes seawater neodymium (Nd) concentrations and Nd isotope signatures (expressed as ε-Nd) obtained from a zonal deep-water (1500 – 5321 m water depth) transect across the oligotrophic South Pacific gyre. The samples were collected during cruise SO245 with R/V Sonne as part of the GEOTRACES process study GPpr09 from February 17th 2015, to January 28th 2016. The samples were processed and analysed following the GEOTRACES protocols. Across 8 stations, dissolved Nd ranges from 10.76 to 31.1 pmol/kg with an overall increase with water depth, but slightly lower concentrations in the deep Southeast Pacific compared to the Southwest Pacific. The isotope composition shows ε-Nd values ranging from -8.5 to -3.9 with lowest ε-Nd (ε-Nd = -8.5 to -7.5) in the deep Pacific west of the East Pacific Rise (EPR) and more radiogenic εNd values (εNd = -6 to -4) east of the EPR. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_968708 |
| institution | PANGAEA |
| language | en |
| publishDate | 2024 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Dissolved neodymium concentrations and neodymium isotope compositions for deep water (≥1500 m) samples of R/V SONNE cruise SO245-UltraPac in the South Pacific Waltemathe, Henning Struve, Torben Rehbein, Matthias Pahnke, Katharina 2SD; 2SE; Bottle number; Calculated, 2 sigma; Calculated, 2 standard deviation; Calculated, 2 standard error; Cruise/expedition; CTD/Rosette; CTD-RO; DATE/TIME; DEPTH, water; Dissolved neodymium concentrations; Dissolved neodymium isotope composition; Event label; GEOTRACES; Global marine biogeochemical cycles of trace elements and their isotopes; Hydrothermal influence; Identification; Inductively coupled plasma mass spectrometer (ICP-MS), Thermo Finnigan, Element 2; coupled with Desolvation introduction system, Teledyne CETAC Technologies, Aridus 2; LATITUDE; LONGITUDE; Multicollector inductively coupled plasma mass spectrometer (MC-ICP-MS), ThermoFisher Scientific, Neptune Plus; coupled with Desolvation introduction system, Teledyne CETAC Technologies, Aridus 2; Neodymium, dissolved; Neodymium, dissolved, uncertainty; Neodymium-143/Neodymium-144 ratio; Neodymium-143/Neodymium-144 ratio, standard error; Normalised (Tanaka et al. 2000); Radiogenic isotopes; Relative standard deviation according to Pahnke et al. (2012); RSD%; Sample ID; SO245; SO245_10-1; SO245_12-2; SO245_14-2; SO245_15-13; SO245_2-2; SO245_4-1; SO245_6-1; SO245_8-1; Sonne_2; South Pacific; South Pacific Ocean; Station label; UltraPac, GEOTRACES; ε-Neodymium; ε-Neodymium, error; ε-Neodymium, standard deviation This dataset includes seawater neodymium (Nd) concentrations and Nd isotope signatures (expressed as ε-Nd) obtained from a zonal deep-water (1500 – 5321 m water depth) transect across the oligotrophic South Pacific gyre. The samples were collected during cruise SO245 with R/V Sonne as part of the GEOTRACES process study GPpr09 from February 17th 2015, to January 28th 2016. The samples were processed and analysed following the GEOTRACES protocols. Across 8 stations, dissolved Nd ranges from 10.76 to 31.1 pmol/kg with an overall increase with water depth, but slightly lower concentrations in the deep Southeast Pacific compared to the Southwest Pacific. The isotope composition shows ε-Nd values ranging from -8.5 to -3.9 with lowest ε-Nd (ε-Nd = -8.5 to -7.5) in the deep Pacific west of the East Pacific Rise (EPR) and more radiogenic εNd values (εNd = -6 to -4) east of the EPR. |
| title | Dissolved neodymium concentrations and neodymium isotope compositions for deep water (≥1500 m) samples of R/V SONNE cruise SO245-UltraPac in the South Pacific |
| topic | 2SD; 2SE; Bottle number; Calculated, 2 sigma; Calculated, 2 standard deviation; Calculated, 2 standard error; Cruise/expedition; CTD/Rosette; CTD-RO; DATE/TIME; DEPTH, water; Dissolved neodymium concentrations; Dissolved neodymium isotope composition; Event label; GEOTRACES; Global marine biogeochemical cycles of trace elements and their isotopes; Hydrothermal influence; Identification; Inductively coupled plasma mass spectrometer (ICP-MS), Thermo Finnigan, Element 2; coupled with Desolvation introduction system, Teledyne CETAC Technologies, Aridus 2; LATITUDE; LONGITUDE; Multicollector inductively coupled plasma mass spectrometer (MC-ICP-MS), ThermoFisher Scientific, Neptune Plus; coupled with Desolvation introduction system, Teledyne CETAC Technologies, Aridus 2; Neodymium, dissolved; Neodymium, dissolved, uncertainty; Neodymium-143/Neodymium-144 ratio; Neodymium-143/Neodymium-144 ratio, standard error; Normalised (Tanaka et al. 2000); Radiogenic isotopes; Relative standard deviation according to Pahnke et al. (2012); RSD%; Sample ID; SO245; SO245_10-1; SO245_12-2; SO245_14-2; SO245_15-13; SO245_2-2; SO245_4-1; SO245_6-1; SO245_8-1; Sonne_2; South Pacific; South Pacific Ocean; Station label; UltraPac, GEOTRACES; ε-Neodymium; ε-Neodymium, error; ε-Neodymium, standard deviation |
| url | https://doi.org/10.1594/PANGAEA.968708 |