Geological polygons based on geological interpretation of geophysical data (1:1,000,000)

Geological Survey of Victoria data contains Pre-Permian geological rock units and boundary types, including faults. The dataset was compiled from surface geology maps and interpretation of magnetic, radiometric, gravity, and seismic data to produce a geologically and geophysically reasonable map. It is intended for use with the state magnetic image for additional context on magnetic properties, dyke swarms, and basalt cover.

Use Cases

• Modeling subsurface geological structures based on interpreted rock unit boundaries and faults.
• Correlating surface geology with geophysical anomalies based on integrated magnetic, radiometric, and gravity data.
• Classifying granitic rock types based on the S, I, and A classification scheme mentioned in the description.
• Studying Phanerozoic orogenic events based on time and palaeoenvironment subdivisions in the legend.
• Mapping geological boundaries for regional planning or resource assessment based on the 1:1,000,000 scale polygons.

Strengths

• Data is integrated from multiple geophysical sources: magnetic, radiometric, gravity, and seismic profiles.
• Rock units are subdivided by time, palaeoenvironment, and granitoid classification (S, I, A).
• Published under a CC-BY-4.0 license, permitting reuse with attribution.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• The dataset is specifically for Pre-Permian geology; Permian and younger units are excluded.

Provenance

Source

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

Collection Method

Compiled from surface geology maps and interpretation of geophysical data (magnetic, radiometric, gravity, seismic).

Time Range

Pre-Permian geological time.

Freshness

Last updated 2026-04-08 22:50:05.071419; freshness should be verified.

Geography

Victoria, Australia.