Geochemical Analysis of Estuarine Sediments from Broad Sound

Numerical techniques applied to the geochemistry of some estuarine sediments from Broad Sound, Queensland. Q-mode factor analysis classified samples into two geologically distinct groups representing intertidal and supratidal deposition. R-mode factor and regression analyses identified processes controlling concentrations of P2O5, Cu, Pb, and Zn, revealing their association with iron colloids, sulphides, and organic carbon under varying pH and Eh conditions.

Use Cases

• Classifying sediment deposition zones using Q-mode factor analysis based on geochemical measurements.
• Modeling trace element (Cu, Pb, Zn) mobility using stepwise regression analysis of pH and Eh readings.
• Investigating phosphorus (P2O5) associations with clay particles and organic carbon across tidal zones.
• Assessing statistical stability of environmental measurements via analysis of variance.

Strengths

• Analysis is supported by multiple statistical techniques, including Q-mode and R-mode factor analysis, stepwise discriminant analysis, and canonical correlation.
• Dataset is associated with Geoscience Australia, a national geoscience organization.
• Cross-platform presence on data.gov.au suggests official curation and importance.

Limitations

• Critical metadata is missing: column names, row count, file size, license, and author are not provided.
• The 'last updated' dates conflict between sources (2026-04-30 and 2026-04-20), indicating potential metadata inconsistency.
• Data format is listed as PDF/HTML, suggesting the primary data may be embedded within a publication rather than a standalone structured table.

Provenance

Source

Geoscience Australia Data

Collection Method

Analysis of estuarine samples collected from Broad Sound, Queensland.

Time Range

null

Freshness

Last updated: 2026-04-30 13:47:39.222275

Geography

Broad Sound, Queensland, Australia