Geoscience Australia Cruise 270 collected marine geological data from the Kenn Plateau off northeast Australia in 2004. The survey recorded 3090 km of multichannel seismic data, continuous multibeam-sonar swath-bathymetry, magnetic data, and twelve dredge hauls of sedimentary rocks. The data document the plateau's complex structure of thinned continental crust, rift basins, and volcanic features.
Use Cases
- Modeling crustal thinning and subsidence rates based on described geological sequences and structures.
- Analyzing the tectonic history of the Cato and West Bellona Fracture Zones based on structural trends.
- Studying the composition and age of sedimentary basins using data from the recovered Eocene and younger dredge samples.
- Mapping basement topography and volcanic edifices using the collected multibeam bathymetry and seismic data.
Strengths
- Includes 3090 km of multichannel seismic reflection data.
- Multibeam-sonar swath-bathymetry was recorded continuously across the survey area.
- Twelve dredge hauls provide physical rock samples, many with micropaleontological age dating.
- Description provides detailed geological context, including sequence stratigraphy and structural history.
Limitations
- Column-level documentation is absent; field semantics must be inferred after download.
- Row count is unknown, which may limit suitability assessment.
- Primary data files are in PDF and HTML formats, which may require extraction for analysis.
Provenance
- Source
- Australian Ocean Data Network, likely originating from Geoscience Australia.
- Collection Method
- Marine geoscience survey conducted by R.V. Southern Surveyor (Cruise SS5/2004) using multibeam sonar, seismic reflection, magnetic surveying, and rock dredging.
- Time Range
- Survey conducted in 2004; geological data covers from the Late Cretaceous to the Recent.
- Freshness
- Last updated 2026-06-05 06:06:25.924594; freshness should be verified.
- Geography
- Kenn Plateau, off northeast Australia, covering approximately 140,000 sq km.