Marine sediment and pore water barium concentration and isotope data from the Walvis Ridge offshore Namibia. Samples were collected during the IODP Expedition 391 from November 2021 to February 2022 and measured at the University of Oxford. The data has an external error of 0.03 per mil and is deemed reproducible.
Use Cases
- Analyze barium isotope ratios in sediment and pore water fractions to study modern ocean redox conditions.
- Investigate paleoproductivity proxies using barium concentration data from specific latitude and longitude sample sites.
- Calibrate geochemical models with drift-corrected measurements taken between January 2023 and September 2024.
Strengths
- Data is the final, complete record with an external reproducibility error of 0.03 per mil.
- Samples include precise latitude and longitude coordinates for each specific location.
- Measurements were drift-corrected over a 21-month period from January 2023 to September 2024.
Limitations
- Sample size and data volume (rows, columns) are unspecified, limiting assessment of statistical power.
- Geographic scope is limited to the Walvis Ridge offshore Namibia, reducing global generalizability.
Provenance
- Source
- British Geological Survey (BGS), collected during International Ocean Discovery Programme (IODP) Expedition 391.
- Collection Method
- Samples measured on a Thermal Ionising Mass Spectrometer at the University of Oxford.
- Time Range
- Samples collected November 2021 - February 2022; measurements drift-corrected January 2023 - September 2024.
- Freshness
- Data was last updated in March 2026.
- Geography
- Walvis Ridge, offshore Namibia.