Six distinct sedimentary cycles, each hundreds of metres thick, have been identified in Australia's Surat Basin. The cycles, spanning the Jurassic and Cretaceous periods, are interpreted as responses to global sea-level oscillations characterized by rapid falls and slow rises. This dataset from Geoscience Australia documents the depositional environments, from braided streams to shallow marine settings, and correlates them with nine global sea-level events.
Use Cases
- Modeling depositional environment transitions based on described sequences of coarse sediments to labile sand, silt, and mud.
- Correlating regional basin stratigraphy with global sea-level oscillation events mentioned in the description.
- Analyzing the impact of local isostatic movements on the preservation of global sedimentary signals.
Strengths
- Describes six well-defined sedimentary cycles, each hundreds of metres thick, providing a substantial stratigraphic record.
- Correlates basin-specific cycles with nine identified global sea-level oscillations, offering a comparative framework.
- Explicitly details depositional environments (e.g., braided streams, deltas, shallow marine) for different cycles.
Limitations
- Column-level documentation is absent; field semantics must be inferred after download.
- Row count is unknown, which may limit suitability assessment for quantitative analysis.
- Data is presented in PDF/HTML formats, which may require extraction for computational use.
Provenance
- Source
- Geoscience Australia Data
- Collection Method
- Geological analysis and interpretation of stratigraphic sequences.
- Time Range
- Jurassic and Cretaceous periods
- Freshness
- Last updated 2026-04-20 03:25:06.311741; freshness should be verified.
- Geography
- Surat Basin, Australia