6000 years B.P. to present sea-level history for northeastern Spencer Gulf, constructed from precisely measured intertidal environments and 14C dating of mollusc shells and sea-grass fibers. The dataset, hosted by the Australian Ocean Data Network, details events including a 1 m sea-level fall around 6000-4000 years B.P. and subsequent shoreline progradation. It was last updated on 2026-06-27.
Use Cases
- Modeling Holocene sea-level curves based on dated beach ridge and sea-grass deposit elevations.
- Analyzing coastal progradation rates over the last 6000 years using regressive shoreline formations.
- Investigating tectonic influences on relative sea level by correlating uplift evidence from the Flinders Ranges with sea-level data.
Strengths
- Precise elevation measurements for beach ridges (+1.1 m to +1.8 m A.H.D.) and subtidal sea-grass deposits (<-2 m A.H.D.).
- Temporal coverage spans approximately 6000 years, with specific event periods defined (e.g., 4000-3000 years B.P.).
- Data collection includes 14C dating of unaltered mollusc shells and sea-grass root fibers.
Limitations
- Column-level documentation is absent; field semantics must be inferred after download.
- Row count is unknown, which may limit suitability assessment.
- Data files are in HTML and PDF formats, which may require extraction for computational analysis.
Provenance
- Source
- Australian Ocean Data Network
- Collection Method
- Field measurements along transects and 14C dating of biological samples.
- Time Range
- 6000 years B.P. to present
- Freshness
- Last updated 2026-06-27 16:49:41.412296; freshness should be verified.
- Geography
- Northeastern Spencer Gulf, South Australia