Keppel Bay Beach-Ridge Sedimentation Record from Late Holocene to Modern Times
Updated 2mo ago
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Description
Beach ridges at Keppel Bay, central Queensland, Australia, preserve a record of sediment accumulation from the historical period back to middle Holocene times. The dataset, sourced from the Australian Ocean Data Network, contains information on six accretional units deposited in periods of rapid progradation approximately 1500, 1000, 450 and 230 years before present. It was last updated on 2026-04-10.
Use Cases
Modeling sediment accumulation rates based on beach-ridge progradation periods identified at ~1500, 1000, 450, and 230 years BP.
Analyzing the impact of Fitzroy River flood cycles, with an average recurrence interval of at least 7 years, on coastal sedimentation.
Investigating changes in sediment provenance and trace-element composition linked to catchment land-use changes like vegetation clearing.
Correlating phases of reduced sediment accumulation, such as since around 1000 years BP, with regional climate records.
Estimating sediment storage capacity of coastal strandplains, which may trap the equivalent of 79% of a river's long-term average annual bedload.
Strengths
Dataset is based on optically stimulated luminescence (OSL) dating, providing chronological control for sedimentary units.
Analysis includes quantitative estimates, such as the strandplain potentially trapping 79% of the Fitzroy River's estimated long-term average annual bedload.
Links sedimentary record to specific climatic events (cyclones) and land-use changes (vegetation clearing) with defined temporal phases.
Limitations
Column-level documentation is absent; field semantics must be inferred after download.
Row count and specific file formats (listed only as HTML) are unknown, which may limit suitability assessment.
Provenance
Source
Australian Ocean Data Network
Collection Method
Likely contains field measurements, sediment analysis, and OSL dating of beach-ridge deposits.
Time Range
Covers from the middle Holocene to the modern historical period, with specific progradation periods at ~1500, 1000, —450, and 230 years BP.
Freshness
Last updated 2026-04-10 20:04:13.568373; freshness should be verified.
Geography
Keppel Bay, central Queensland, Australia, focusing on the Fitzroy River catchment and coastal system.
File format is listed as HTML, which may indicate a metadata page or report rather than a directly analyzable data table.