Western Australia Bedrock Structural Lines at 1:2.5 Million Scale

Western Australia's 1:2,500,000 scale interpreted bedrock geology structural lines layer contains linear features like faults and dykes. The dataset, created by the Department of Mines, Industry Regulation and Safety, includes attribution for structures as concealed or exposed, with simplified fault details except for major tectonic boundaries. Data is held in GDA decimal degrees.

Use Cases

• Analyze fault and dyke lineament density across Western Australia to identify regional tectonic trends.
• Map the distribution of concealed versus exposed structural lines to infer bedrock geology under regolith cover.
• Integrate this structural lines layer with the primary bedrock and Cenozoic geology layers for comprehensive geological modeling.

Strengths

• Part of a standardized 1:2,500,000 scale geological map series for Western Australia.
• Includes attribution distinguishing between concealed and exposed linear structures.
• Provides data in multiple GIS formats including SHP, GEOJSON, and GEOPACKAGE.

Limitations

• Detailed fault attribution is simplified from higher-resolution 1:500,000 scale data.
• Attribution for concealment does not account for regolith cover, only interpreted bedrock and Cenozoic geology.
• The Creative Commons Non-Commercial license restricts commercial applications.

Provenance

Source

Department of Mines, Industry Regulation and Safety (DMIRS), Western Australia.

Collection Method

Interpreted from geological mapping, simplified from 1:500,000 scale data for major features.

Time Range

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Freshness

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Geography

State of Western Australia.