Keppel Bay Seabed Morphology and Sediment Stratigraphy

Geomorphology and stratigraphic data describe the complex seabed and sediment distribution within Keppel Bay, a large shallow coastal embayment in Queensland, Australia. The dataset, published by the Australian Ocean Data Network, includes information on seabed morphology, sub-bottom profiles, and sediment cores, with a last update recorded in April 2026.

Use Cases

• Map paleo-Fitzroy River channels across the continental shelf using seabed morphology and sub-bottom profile data.
• Analyze sediment composition (e.g., muddy sand vs. relict fluvial deposits) from core samples to understand depositional mechanisms in inner versus outer Keppel Bay.
• Model coastal progradation over the last few thousand years using stratigraphic data from infilled palaeochannels in the inner bay.
• Assess sediment transport dynamics by studying subaqueous dune locations and compositions in the outer southeastern section of the bay.

Strengths

• Covers a large shallow coastal embayment and adjacent continental shelf.
• Integrates multiple data types: seabed morphology, sub-bottom profiles, and sediment cores.

Limitations

• Specific row counts, column details, and sample sizes are unknown.
• Primary data formats are PDF and HTML, which may require extraction for quantitative analysis.
• Temporal coverage and specific measurement dates within the described Holocene and recent periods are not detailed.

Provenance

Source

Australian Ocean Data Network

Collection Method

Analysis of seabed morphology, sub-bottom profiles, and sediment cores.

Time Range

Late Quaternary to present, with focus on Holocene sea-level changes.

Freshness

Last updated in April 2026.

Geography

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