A 2009/2010 seabed mapping survey by Geoscience Australia collected 124 samples with 74 physical and chemical variables from the eastern Bonaparte Gulf. The data characterizes sediment properties, geochemistry, and benthic habitats to inform biodiversity conservation and offshore development. Results from cluster analysis highlight relationships between sediment characteristics, geochemical gradients, and infauna biodiversity.
Use Cases
- Classifying seabed sediment environments based on 74 physical and chemical variables.
- Modeling the influence of geochemical dimensions like grain-size and manganese/phosphorus enrichment on benthic biodiversity.
- Identifying sensitive benthic habitats, such as sponge/gorgonian clusters, based on sediment geochemistry and redox conditions.
- Investigating the impact of subsurface seepage on terrestrial sediment signatures in outer-shelf sediments.
Strengths
- Dataset comprises 124 samples with 74 measured physical and chemical variables.
- Clustering results showed a high cophenetic correlation of 0.82, indicating a good fit to the data structure.
- Analysis links specific geochemical signatures (e.g., Nd/Sr, δ15N, Si-Al relations) to biological occurrences like sponges and gorgonians.
Limitations
- Column-level documentation is absent; field semantics must be inferred after download.
- Row count is unknown, which may limit suitability assessment.
- Description metadata is limited; actual data quality requires manual inspection after download.
Provenance
- Source
- Geoscience Australia Data
- Collection Method
- Seabed mapping surveys involving sample collection and laboratory analysis of physical and chemical properties.
- Time Range
- 2009-2010
- Freshness
- Last updated 2026-03-25 17:21:38.306981; freshness should be verified.
- Geography
- Eastern Bonaparte Gulf, Australia