Sedimentary Cycles And Sea-Level Changes In The Surat Basin

Six sedimentary cycles, each hundreds of metres thick, are documented for the Surat Basin. The cycles are analyzed in relation to nine global sea-level oscillations during the Jurassic and Cretaceous periods. This record was published by the Australian Ocean Data Network and was last updated in April 2026.

Use Cases

• Correlate six identified sedimentary cycles with nine global sea-level oscillations to test eustatic models.
• Analyze the transition from high-energy coarse sediment deposition to labile sand, silt, and mud within each Jurassic cycle.
• Model the impact of local isostatic movements on the preservation of global sea-level signals in the basin record.
• Reconstruct paleoenvironments (braided streams, meandering streams, swamps, lakes, deltas, marine) from cycle descriptions.
• Investigate the shift from continental to marine-influenced deposition between Jurassic and Cretaceous cycles.

Strengths

• Analysis of six distinct sedimentary cycles spanning two major geological periods.
• Direct correlation proposed with nine global sea-level oscillations.

Limitations

• No raw data columns or sample data are provided, only descriptive analysis.
• The record acknowledges that some global oscillations may be too slight to identify in the basin.
• Local isostatic movements may have obscured or exaggerated the record of some cycles.

Provenance

Source

Australian Ocean Data Network

Collection Method

null

Time Range

Jurassic and Cretaceous periods

Freshness

null

Geography

Surat Basin, Australia