Deep Sea Drilling Project Leg 21 recovered Cenozoic and latest Cretaceous sediments at Site 208 on the Lord Howe Rise. The dataset provides new biostratigraphic, magnetostratigraphic, and geochemical data from cores at depths of 540-590 meters below seafloor to constrain stratigraphy around the Cretaceous/Paleogene boundary. The study, published in GSA Bulletin in 2021, reveals a sedimentary record close to the K/Pg bolide impact.
Use Cases
- Calibrating stratigraphic timelines based on biostratigraphic data on calcareous nannofossils
- Identifying the K/Pg boundary interval based on osmium concentration and isotopic composition
- Analyzing global carbon isotope patterns based on carbonate carbon isotopic composition (δ13Ccarb) data
- Studying sediment deposition continuity across major geological boundaries based on core depth data
Strengths
- Data integrates multiple stratigraphic methods: biostratigraphy, magnetostratigraphy, and geochemistry
- Core samples cover a specific depth interval of 540-590 meters below seafloor
- Study is peer-reviewed and published in GSA Bulletin (2021)
Limitations
- Row count and column-level documentation are unknown, limiting suitability assessment
- Description metadata is limited; actual data quality requires manual inspection after download
Provenance
- Source
- Australian Ocean Data Network
- Collection Method
- Data gathered from cores recovered during Deep Sea Drilling Project (DSDP) Leg 21 at Site 208.
- Time Range
- Sediments from the Maastrichtian (Late Cretaceous) to the Danian and Selandian (Paleocene).
- Freshness
- Last updated 2026-05-05 01:28:21.455946; freshness should be verified
- Geography
- Lord Howe Rise, Southwest Pacific.