Keppel Bay Coastal Sediment Record Spanning 1500 Years

A 1500-year chronology of shoreline sediment accumulation is reconstructed from beach ridge deposits in Queensland, Australia. The Australian Ocean Data Network provides this study, which analyzes ridge morphology, sediment texture, and geochemistry. Preliminary results indicate changes in sediment supply rates, source areas, and minor relative sea-level falls.

Use Cases

• Modeling shoreline progradation rates using the optically stimulated luminescence (OSL) chronology.
• Analyzing changes in sediment source areas through geochemical data from ridge deposits.
• Correlating ridge morphology features with periods of altered sediment accumulation rates.
• Investigating minor relative sea-level falls recorded in the stratigraphy of the beach-ridge plain.

Strengths

• Chronology spans 1500 years, providing a long-term environmental record.
• Analysis integrates multiple data types: morphology, sediment texture, and geochemistry.

Limitations

• Interpretations are explicitly described as preliminary by the authors.
• Specific sample size, row count, and data granularity are unknown.

Provenance

Source

Australian Ocean Data Network

Collection Method

Field study using optically stimulated luminescence (OSL) dating on beach-ridge deposits.

Time Range

Covers approximately 1500 years of sediment accumulation.

Freshness

null

Geography

Keppel Bay, central coast of Queensland, Australia.