Cretaceous Sedimentary Rocks of Eastern Australia, 1.5 Million km²

Eastern Australia's Eromanga and Surat Basins contain Cretaceous sedimentary rocks covering 1,500,000 km². The Australian Ocean Data Network provides this geological description, which details depositional environments ranging from freshwater to shallow marine over approximately 20 million years. The data describes sequences from the Neocomian to Cenomanian, with up to 2000 meters of sediment preserved.

Use Cases

• Modeling ancient epicontinental sea environments based on described depositional sequences
• Analyzing sediment provenance shifts from quartz-rich to quartz-poor sequences
• Studying transgressive-regressive cycles over a 20-million-year period
• Comparing Cretaceous basin geology to modern analogues like the Baltic Sea

Strengths

• Covers a vast geographic area of 1,500,000 km²
• Describes sediment thickness up to 2000 meters in the Eromanga Basin
• Details a temporal sequence spanning approximately 20 million years

Limitations

• Column-level documentation is absent; field semantics must be inferred after download
• Row count is unknown, which may limit suitability assessment
• Data is presented as HTML and PDF documents, not a structured data table

Provenance

Source

Australian Ocean Data Network

Time Range

Cretaceous period

Freshness

Last updated 2026-06-23 04:08:36.717988; freshness should be verified

Geography

Eromanga and Surat Basins, eastern Australia