Stranded Beach Dune Sequence in South-east South Australia with SAR-OSL Ages

A sequence of stranded coastal barriers in south-east South Australia preserves a record of sea-level variations over the past 800,000 years. The dataset presents new single-aliquot regenerative-dose optically stimulated luminescence (SAR-OSL) ages for quartz extracts from these dunes, covering an extended age range of 0-250 ka. The data, sourced via the Australian Ocean Data Network, was last updated in June 2026.

Use Cases

• Validate the accuracy of the SAR-OSL dating procedure over a 0-250 ka range based on the described comparison with an existing chronology.
• Reconstruct past sea-level variations based on the record preserved in the stranded coastal barrier sequence.
• Compare luminescence dating methods (SAR-OSL vs. thermoluminescence) for coastal dune sediments as referenced in the description.
• Establish a chronological framework for the Robe II (60 ka) and Robe III (100 ka) dune ranges mentioned in the study.

Strengths

• Provides a chronological record spanning up to 800,000 years for studying long-term sea-level change.
• Compares new SAR-OSL ages with an independent chronology, allowing for method validation.
• Includes specific age estimates for geological features, such as the Robe II range (60 ka) and Robe III range (100 ka).

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data may reflect geographic bias inherent to the specific coastal region of south-east South Australia.

Provenance

Source

Australian Ocean Data Network via data.gov.au

Collection Method

Single-aliquot regenerative-dose optically stimulated luminescence (SAR-OSL) dating on quartz extracts from stranded coastal dunes.

Time Range

Covers an age range of 0-250 ka, with the broader sequence preserving a record of the past 800 ka.

Freshness

Last updated 2026-06-05 07:17:18.863054; freshness should be verified.

Geography

Stranded coastal barriers in south-east South Australia.