Geomorphology and Stratigraphy of Keppel Bay, South-east Queensland

Keppel Bay's seabed morphology reveals the former path of the Fitzroy River across the continental shelf to a point now under approximately 60 meters of water. This dataset from Geoscience Australia describes the complex sediment distribution shaped by Late Quaternary sea-level changes, macrotidal processes, and flood events. It includes findings from seabed morphology surveys, sub-bottom profiles, and sediment cores.

Use Cases

• Modeling paleo-drainage pathways based on described relict channels and infilled palaeochannels.
• Analyzing sediment transport dynamics based on described subaqueous dunes and tidal current influences.
• Studying coastal progradation and infilling rates based on the described several-kilometer coastline advance over the last few thousand years.
• Assessing sediment provenance and composition based on described muddy sand from the Fitzroy River and relict fluvial deposits.

Strengths

• Describes a complex coastal system influenced by multiple factors: Late Quaternary sea-level change, relict topography, a geologically diverse catchment, macrotidal processes, and flood events.
• Integrates multiple data sources: seabed morphology, sub-bottom profiles, and sediment cores.
• Provides a specific paleogeographic detail: the palaeo-Fitzroy River flowed to a shelf position now under approximately 60 m of water.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data is delivered as PDF/HTML reports, which may require extraction for quantitative analysis.

Provenance

Source

Geoscience Australia Data

Collection Method

Seabed morphology surveys, sub-bottom profiling, and sediment core analysis.

Time Range

Late Quaternary to present, with focus on Holocene changes.

Freshness

Last updated 2026-05-14 03:22:08.076167; freshness should be verified.

Geography

Keppel Bay and adjacent continental shelf, central coast of Queensland, Australia.