A dataset from the Australian Ocean Data Network presents results from applying numerical techniques to geochemical data from estuarine sediments in Broad Sound, Queensland. Q-mode and R-mode factor analyses, discriminant analysis, and regression were used to classify samples and identify processes controlling concentrations of P2O5, Cu, Pb, and Zn. The data was last updated on 2026-05-05.
Use Cases
- Classifying sediment deposition zones based on geochemical signatures using Q-mode factor analysis.
- Identifying processes controlling trace metal concentrations (Cu, Pb, Zn) using R-mode factor analysis and regression.
- Analyzing the relationship between pH/Eh stability and metal adsorption/release patterns described in the analysis.
- Studying the association of P2O5 with clay particles versus organic carbon in different tidal zones.
Strengths
- Analysis employs multiple statistical techniques (Q-mode factor analysis, discriminant analysis, canonical correlation, R-mode factor analysis, regression) for validation.
- Dataset focuses on a specific geographical location (Broad Sound, Queensland), providing localized environmental insights.
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 data_gov_au, being limited to one estuary.
Provenance
- Source
- Australian Ocean Data Network
- Collection Method
- Geochemical analysis and statistical modeling of collected sediment samples.
- Freshness
- Last updated 2026-05-05 04:24:42.375568; freshness should be verified.
- Geography
- Broad Sound, Queensland