Oxygen isotopic records from three planktonic foraminifera species were analysed for 5 sediment traps moored in the Southern Ocean and Southwest Pacific. The dataset provides the first analysis of seasonal foraminiferal d18O records from Subtropical to Polar Frontal environments. The Australian Ocean Data Network published this data, with a last updated timestamp of 2026-04-16.
Use Cases
- Calibrating paleoclimate temperature reconstructions based on oxygen isotope values from foraminifera.
- Comparing species-specific habitat depths based on seasonal d18O range differences.
- Evaluating carbonate chemistry proxy models based on the finding that offsets for G. bulloides do not correlate to carbonate ion concentration.
- Analyzing seasonal flux patterns and their imprint on sedimentary records based on flux-weighted isotopic values.
- Testing isotopic temperature scale equations (Epstein et al., Kim and O'Neil) against observed foraminiferal d18O.
Strengths
- Data covers 5 sediment traps spanning a latitudinal gradient from Subtropical to Polar Frontal environments.
- Includes oxygen isotope records for three distinct planktonic foraminifera species: Globigerina bulloides, Globorotalia inflata, and Neogloboquadrina pachyderma (s.).
- The study provides a comparison between flux-weighted isotopic values from traps and the isotopic composition of nearby surface sediments.
Limitations
- Column-level documentation is absent; field semantics must be inferred after download.
- Row count is unknown, which may limit suitability assessment.
- Freshness should be verified; last updated timestamp is 2026-04-16.
Provenance
- Source
- Australian Ocean Data Network
- Collection Method
- Analysis of oxygen isotopic records from sediment trap deployments.
- Freshness
- 2026-04-16 13:56:46.120577
- Geography
- Southern Ocean and Southwest Pacific, from Subtropical to Polar Frontal environments.