Geomorphology and Sediment Distribution of Keppel Bay, Queensland

Keppel Bay's seabed reveals a complex history shaped by Late Quaternary sea-level changes and the Fitzroy River's past course. The palaeo-Fitzroy River once flowed west across the continental shelf to a point now under approximately 60 meters of water. Geoscience Australia Data compiled this information, last updated in April 2026.

Use Cases

• Modeling Late Quaternary sea-level change impacts based on described relict topography and infilled channels.
• Analyzing sediment transport pathways based on described subaqueous dunes and tidal current influences.
• Reconstructing palaeo-river systems based on described seabed morphology and sub-bottom profiles revealing the former Fitzroy River path.
• Assessing modern sediment budgets based on described infilled inner bay channels and sediment-starved outer bay areas.

Strengths

• Description provides specific geological context, including the approximate 60-meter water depth of the former river mouth.
• Analysis covers multiple temporal scales from the Late Quaternary to the last few thousand years.
• Data originates from Geoscience Australia Data, a national geoscience organization.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Primary file formats are PDF and HTML, which may require extraction for computational analysis.

Provenance

Source

Geoscience Australia Data

Collection Method

Likely derived from seabed morphology surveys, sub-bottom profiles, and sediment core analysis.

Time Range

Covers Late Quaternary to present, with focus on Holocene changes.

Freshness

Last updated 2026-04-20 01:15:52.219342; freshness should be verified.

Geography

Keppel Bay and adjacent continental shelf, south-east Queensland, Australia.