Mesozoic Sediment Stratigraphy and Palynology from the Great Australian Bight

Palynological investigation of dredged samples from the Bight and Duntroon Basins, collected during BMR Rig Seismic Cruise 66. The dataset, sourced via the Australian Ocean Data Network, correlates palynofloras with Maastrichtian to earliest Paleocene zones, indicating widespread deposition of the upper Potoroo Formation. It also includes samples from Santonian to Maastrichtian and Early Cretaceous periods, with evidence of recycled palynomorphs and temperate rainforests on the Australian rift side during the Campanian-Maastrichtian.

Use Cases

• Correlating sedimentary formations based on palynological zonation mentioned in the description
• Reconstructing paleoenvironments and depositional settings (paralic to marine) from the described palynofloras
• Analyzing sediment provenance and ancient stream flow patterns based on described recycled palynomorphs
• Studying the temporal distribution of temperate rainforests during the Campanian-Maastrichtian as indicated by palynological evidence

Strengths

• Data includes temporal coverage from Santonian to earliest Paleocene periods
• Spatial coverage spans the Bight and Duntroon Basins in the Great Australian Bight area
• Analysis links palynofloras to specific geological formations (Potoroo, Wigunda, Ceduna)

Limitations

• Column-level documentation is absent; field semantics must be inferred after download
• Row count is unknown, which may limit suitability assessment
• Data may reflect geographic/temporal bias inherent to the specific dredging cruise and area

Provenance

Source

Australian Ocean Data Network

Collection Method

Palynological investigation of samples dredged from the continental slope and submarine canyon walls during BMR Rig Seismic Cruise 66

Time Range

Mesozoic era, with specific samples from Santonian, Maastrichtian, earliest Paleocene, and Early Cretaceous periods

Freshness

Last updated 2026-06-23 05:41:33.643224; freshness should be verified

Geography

Great Australian Bight area, southern Australia, covering the offshore Bight and Duntroon Basins