Sedimentary Cycles in the Surat Basin Linked to Sea-Level Changes

Six sedimentary cycles, each hundreds of metres thick, document Jurassic and Cretaceous deposition in the Surat Basin. The cycles are interpreted as responses to global sea-level changes and were documented by the Australian Ocean Data Network. The dataset metadata was last updated in April 2026.

Use Cases

• Correlating the six Surat Basin cycles with nine global sea-level oscillations mentioned in the description.
• Analyzing the transition from high-energy coarse sediment deposition to labile sand, silt, and mud described for Jurassic cycles.
• Studying the shift from continental (braided streams, swamps) to marine (paralic silt, shallow marine silt) environments between Jurassic and Cretaceous cycles.
• Investigating the impact of local isostatic movements on the expression of global sea-level cycles as noted in the description.

Strengths

• Identifies six distinct sedimentary cycles, each hundreds of metres thick.
• Provides a comparative analysis of nine global sea-level oscillations.
• Distinguishes depositional environments between Jurassic and Cretaceous periods.

Limitations

• No columnar data or sample data is available, only descriptive text.
• The primary data formats are PDF and HTML, limiting machine-readability.
• Specific sample sizes, geographic coordinates, and quantitative measurements are not provided.

Provenance

Source

Australian Ocean Data Network

Collection Method

Geological analysis and interpretation of sedimentary sequences.

Time Range

Jurassic and Cretaceous periods

Freshness

Metadata updated April 2026.

Geography

Surat Basin, Australia