Geophysical Interpretation of Contact and Regional Metamorphism at 1:100,000 Scale

Geophysical mapping data displays areas and styles of contact and regional metamorphism in Victoria, Australia. The dataset was created by the Geological Survey of Victoria using combined interpretations of airborne magnetic, radiometric, and gravity survey data. It is accompanied by other datasets representing geological polygons, boundaries, and structural lines.

Use Cases

• Mapping regional metamorphic zones based on combined airborne geophysical survey interpretations.
• Analyzing the style of metamorphism (contact vs. regional) using magnetic, radiometric, and gravity data.
• Integrating this interpretation layer with accompanying geological polygon and structural line datasets for a complete geological model.

Strengths

• Data is derived from combined interpretations of three geophysical survey types: airborne magnetic, radiometric, and gravity.
• Mapping is provided at a detailed 1:100,000 scale, with integration of newer 1:250,000 mapping in specified areas.
• Explicitly lists areas where newer 1:250,000 mapping supersedes older 1:100,000 data (e.g., St Arnaud, Bendigo).

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.

Provenance

Source

Geological Survey of Victoria, Department of Energy, Environment and Climate Action.

Collection Method

Interpretation of combined airborne magnetic, radiometric, and gravity survey data.

Freshness

Last updated 2026-04-09 02:13:07.261986; freshness should be verified.

Geography

Victoria, Australia, with specific map sheet areas named (e.g., St Arnaud, Bendigo, Grampians).