BGS Geology - 625k (DiGMapGB-625) Dykes: UK Bedrock and Igneous Intrusions

British Geological Survey (BGS) data identifying landscape areas attributed with geological names at a 1:625,000 scale. The dataset provides onshore coverage for England, Wales, Scotland, the Isle of Man, and Northern Ireland, with dykes presented as a separate theme for clarity. It is delivered as a vector GeoPackage under the Open Government Licence.

Use Cases

• Regional geological mapping based on the 1:625,000 scale bedrock and dyke polygons.
• Analyzing the distribution of igneous intrusions based on the separate dykes theme.
• Creating simplified base maps for national-level environmental or resource assessments based on the attributed geological names.

Strengths

• Provides full onshore coverage for the UK nations and the Isle of Man.
• Includes a separate, clearly defined theme for dykes (igneous intrusions) to enhance bedrock map clarity.
• Data is available in a standard vector format (OGC GeoPackage) for interoperability.

Limitations

• The 1:625,000 scale is simplified and should not be relied on for local geology, as stated in the description.
• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment for large-scale analysis.

Provenance

Source

British Geological Survey (BGS)

Collection Method

Likely contains a simplified interpretation of geological survey data.

Freshness

Last updated 2026-05-28 14:04:35.548060; freshness should be verified.

Geography

Onshore coverage for England, Wales, Scotland, the Isle of Man, and Northern Ireland.