Geochemical Analysis of Estuarine Sediments from Broad Sound, Queensland

Q-mode factor analysis classified estuarine sediment samples from Broad Sound, Queensland, into two geologically distinct groups representing intertidal and supratidal deposition. The dataset, hosted by the Australian Ocean Data Network, was last updated in June 2026. It identifies processes controlling concentrations of P2O5, Cu, Pb, and Zn using R-mode factor analysis and stepwise regression.

Use Cases

• Classifying sediment depositional environments based on geochemical signatures mentioned in the description.
• Modeling the relationship between pH/Eh and trace metal (Cu, Pb, Zn) mobility in intertidal and supratidal zones.
• Identifying statistical error and stability in environmental measurements like pH and Eh readings over time.
• Analyzing the absorption of P2O5 on clay particles versus its association with organic carbon under different acidity conditions.

Strengths

• Analysis supported by multiple statistical techniques including Q-mode factor analysis, discriminant analysis, and canonical correlation analysis.
• Identifies specific geochemical processes for key elements (P2O5, Cu, Pb, Zn) in two distinct depositional zones.

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 the single study location in Broad Sound.

Provenance

Source

Australian Ocean Data Network

Collection Method

Geochemical analysis of sediment samples, supported by statistical and mathematical techniques.

Freshness

Last updated 2026-06-05 06:42:27.509392; freshness should be verified.

Geography

Broad Sound, Queensland, Australia