Lord Howe Rise in the Southwest Pacific is the location of this dataset from Deep Sea Drilling Project Site 208. It provides biostratigraphic, magnetostratigraphic, and geochemical data to constrain stratigraphy around the Cretaceous/Paleogene boundary. The data was published in GSA Bulletin in 2021 by researchers including Junichiro Kuroda.
Use Cases
- Correlating marine sediment layers based on calcareous nannofossil biostratigraphy mentioned in the description.
- Identifying the K/Pg boundary interval using osmium concentration and isotopic composition data described.
- Analyzing carbon isotope (δ13C) shifts across the K/Pg boundary to compare with global patterns.
- Assessing sediment deposition continuity from the Maastrichtian to the Danian and Selandian stages as indicated by the biostratigraphic record.
Strengths
- Integrates multiple data types: biostratigraphic, magnetostratigraphic, and geochemical data.
- Provides depth-specific constraints for the K/Pg boundary between 576.0-576.8 meters below seafloor.
- Includes isotopic data (δ13Ccarb and 187Os/188Os) consistent with global K/Pg boundary patterns.
Limitations
- Row count is unknown, which may limit suitability assessment.
- Column-level documentation is absent; field semantics must be inferred after download.
- The description suggests the sedimentary record may not be completely continuous across the K/Pg boundary.
Provenance
- Source
- Geoscience Australia Data, derived from Deep Sea Drilling Project Leg 21, Site 208.
- Collection Method
- Data gathered from analysis of sediment cores, including biostratigraphic, magnetostratigraphic, and geochemical measurements.
- Time Range
- Late Cretaceous (Maastrichtian) to Paleocene (Danian and Selandian).
- Freshness
- Last updated 2026-04-30 13:52:30.985492; freshness should be verified.
- Geography
- Lord Howe Rise, Southwest Pacific (Site 208).