Over 3,000 sediment samples from Geoscience Australia's MARS database provide a regional synthesis of the non-reefal seabed, which comprises 95% of the Great Barrier Reef Marine Park area. This dataset combines surface sediment data with geomorphic features to characterize seabed habitats, updating models since the 1960s-1980s. It reveals regional trends and local-scale sedimentary patterns, including the patchy distribution of sand and concentrations of gravel and mud.
Use Cases
- Characterize seabed habitats for marine park management based on the synthesis of sediment and geomorphic data.
- Model sediment distribution patterns based on regional trends in grain size fractions like sand, gravel, and mud.
- Analyze the influence of hydrodynamic irregularities and reef talus aprons based on local-scale sediment facies characteristics.
- Refine facies models for mixed carbonate-siliciclastic margins based on quantitative sediment data.
Strengths
- Contains over 3,000 sediment samples, substantially improving data coverage for inter-reefal areas.
- Represents the first regional synthesis of surface sedimentology and geomorphology for the GBR since pioneering work in the 1960s-1980s.
- Provides a quantitative dataset revealing both regional trends and local-scale sedimentary characteristics.
Limitations
- Column-level documentation is absent; field semantics must be inferred after download.
- Row count is unknown, which may limit suitability assessment.
- Data is delivered in PDF and HTML formats, which may require extraction for computational analysis.
Provenance
- Source
- Geoscience Australia Data
- Collection Method
- Spatial analysis synthesizing sediment samples from the MARS database and the Geomorphic Features dataset.
- Time Range
- null
- Freshness
- Last updated 2026-04-20 00:50:03.558007; freshness should be verified.
- Geography
- Great Barrier Reef Marine Park