The River Supersequence is a 15-million-year accommodation cycle comprising eight 3rd-order sequences. It attains a maximum thickness of 3300 meters on the central Lawn Hill Platform, with facies ranging from fine-grained siliciclastics to mixed carbonate-siliciclastic successions. This dataset, sourced from the Australian Ocean Data Network, describes the supersequence's dynamic basin partitioning, syndepositional faulting, and associated Zn–Pb–Ag mineralisation.
Use Cases
- Analyze basin partitioning and accommodation cycles based on the supersequence's 2nd-order cycle and eight 3rd-order sequences.
- Model syndepositional fault movement and sub-basin formation based on documented fault offsets and thickness changes.
- Study sedimentary facies and depositional environments based on described fluvial channels, shoreface settings, turbidites, and submarine fans.
- Investigate base-metal mineralisation potential based on the three stratigraphic levels associated with Zn–Pb–Ag mineralisation.
Strengths
- The supersequence's maximum thickness is quantified at 3300 meters.
- The description details a wide range of depositional systems and palaeoenvironments.
- The dataset references specific geographic extents, such as from the Murphy Inlier to the Elizabeth Creek Fault Zone.
Limitations
- Column-level documentation is absent; field semantics must be inferred after download.
- Row count is unknown, which may limit suitability assessment.
- The data appears to be a descriptive study; the availability of raw, structured geospatial data is unclear.
Provenance
- Source
- Australian Ocean Data Network
- Collection Method
- Likely compiled from geological field studies, drillhole intersections, and reflection seismic imaging.
- Time Range
- Proterozoic era.
- Freshness
- Last updated 2026-04-16 15:04:49.088281; freshness should be verified.
- Geography
- Lawn Hill Platform and McArthur Basin, northern Australia.