Geological zones of contact metamorphism interpreted from geophysical interpretation (1:25

Geological Survey of Victoria data displays areas and styles of contact and regional metamorphism. The dataset was mapped using combined interpretations of airborne magnetic, radiometric, and gravity survey data at a 1:250,000 scale. It is accompanied by other datasets representing geological polygons, boundaries, and structural lines.

Use Cases

• Map regional metamorphic patterns based on combined airborne geophysical survey interpretations.
• Analyze the relationship between geophysical features and contact metamorphism styles.
• Update or supersede older geological mapping in specific Victorian map sheet areas.
• Integrate metamorphic zone data with accompanying structural line and subsurface polygon datasets.

Strengths

• Derived from combined airborne magnetic, radiometric, and gravity survey data.
• Specifies a mapping scale of 1:250,000, with details on superseded 1:100,000 mapping.
• Explicitly lists superseded map sheet areas (e.g., St Arnaud 7524, Bendigo 7724).
• Available in multiple geospatial file formats including SHP, DXF, and GDB.

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 airborne magnetic, radiometric, and gravity survey data.

Time Range

null

Freshness

Last updated 2026-04-08 21:31:54.096371; freshness should be verified.

Geography

Victoria, Australia, as indicated by specific map sheet names (e.g., St Arnaud, Bendigo, Grampians).