Seismic reflection data from the Australian Ocean Data Network reveals two major sedimentary basins along the Wilkes Land and Terre Adelie continental margin. The data identifies four seismic megasequences and describes basins containing over 9 km of sediments, with interpretations linking them to Late Jurassic to mid-Cretaceous rifting and post-rift deposition. The dataset was last updated on 2026-05-05.
Use Cases
- Mapping sedimentary basin thickness and distribution based on seismic reflection data.
- Analyzing rift and post-rift sediment deposition patterns based on described megasequences.
- Correlating Antarctic and Australian margin geology based on seismic correlation mentioned.
- Studying sub-glacial sediment sources based on the inferred link to the Totten Glacier basin.
Strengths
- Data identifies sedimentary basins with more than 5 seconds TWT (>9 km) of sediments.
- Describes a specific depocentre (Budd Coast Basin) with a maximum observed thickness of 9 km.
- Provides interpreted age ranges for basins and unconformities (Turonian, Maastrichtian, early Middle Eocene, Late Jurassic to mid-Cretaceous).
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, focusing on a specific Antarctic region.
Provenance
- Source
- Australian Ocean Data Network
- Collection Method
- Seismic reflection data collection and analysis.
- Freshness
- Last updated 2026-05-05 02:26:00.322360; freshness should be verified.
- Geography
- Wilkes Land and Terre Adelie Margins, East Antarctica