Late Cretaceous to Cenozoic (approximately 83-65 Ma to present) sedimentary data from the Australian-Antarctic Basin. The dataset collates seismic reflection profiles and offshore drilling data to develop a consistent stratigraphic framework across the conjugate margins. It was made available by the Australian Ocean Data Network and last updated in June 2026.
Use Cases
- Correlating sedimentary units based on basin-wide seismic stratigraphy.
- Modeling paleo-oceanographic conditions based on interpreted sediment drift deposits and hiatuses.
- Analyzing sediment deposition patterns linked to Late Cretaceous river systems and Eocene bottom currents.
Strengths
- Collates all available seismic reflection profiles from both the Australian and Antarctic margins.
- Integrates newly available offshore drilling data, including from IODP site U1356A.
- Enables correlation of four major sedimentary units across the basin.
Limitations
- Column-level documentation is absent; field semantics must be inferred after download.
- Row count is unknown, which may limit suitability assessment.
- Data may reflect geographic bias inherent to data_gov_au.
Provenance
- Source
- Australian Ocean Data Network
- Collection Method
- Collation of seismic reflection profiles and integration of offshore drilling data.
- Time Range
- Late Cretaceous to Cenozoic (~83 Ma to present)
- Freshness
- Last updated 2026-06-04 15:59:14.367481
- Geography
- Australian-Antarctic Basin, conjugate Australian and Antarctic margins