Beachmere Beach Ridge Chronology and Progradation Rates

1,700 years of shoreline change at Beachmere, Queensland, Australia, is recorded through the morphology and optical ages of seven beach ridges. The dataset provides progradation rates, which increased from ~0.16 m/yr to ~0.40 m/yr, and indicates a past relative sea level approximately 1 meter higher than present. It captures a rapid phase of accretion likely linked to increased sediment supply after European settlement.

Use Cases

• Modeling past shoreline progradation rates based on optically dated ridge sequences.
• Reconstructing relative sea-level changes over the late Holocene.
• Analyzing shifts in coastal accretion patterns potentially linked to anthropogenic sediment supply.
• Calibrating coastal evolution models with chronostratigraphic data from beach ridges.

Strengths

• Provides a detailed 1,700-year chronostratigraphic record for a specific coastal site.
• Includes quantitative progradation rates (e.g., ~0.16 m/yr to ~0.40 m/yr) and sea-level estimates (approx. 1 m higher).
• Cross-platform presence on data.gov.au suggests formal curation and importance for the domain.

Limitations

• Column names and data structure are not provided, limiting immediate analytical utility.
• Key metadata such as row count, specific license, and detailed authorship are absent.
• The 'last updated' dates (2026-05-05, 2026-04-04) are implausibly in the future, indicating potential metadata errors.

Provenance

Source

Australian Ocean Data Network, likely associated with a scientific journal publication.

Collection Method

Optical dating (luminescence) of pebbly sand beds within beach ridges.

Time Range

Last 1,700 years

Freshness

2026-05-05 00:31:39.667073

Geography

Beachmere, southeastern Queensland, Australia