Geology of the Canberra 1:100 000 Sheet Area in New South Wales and ACT

The Canberra 1:100 000 Geological Sheet covers approximately 2500 km² of hilly upland terrain in the Australian Capital Territory and southeastern New South Wales. The bedrock comprises Ordovician to Silurian sediments and acid volcanics which have been invaded by several generations of Silurian intrusions. This dataset is provided by Geoscience Australia and was last updated in May 2026.

Use Cases

• Regional geological mapping based on the described bedrock composition and terrain.
• Analysis of Silurian intrusive events based on the description of multiple generations of intrusions.
• Terrain classification and study based on the described hilly upland landscape covering 2500 km².

Strengths

• Covers a defined area of approximately 2500 square kilometers.
• Provides specific geological timeframes (Ordovician to Silurian) for the bedrock composition.
• Sourced from the authoritative national geological agency, Geoscience Australia.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Data is provided in PDF and HTML formats, which may limit computational analysis without extraction.
• Row count is unknown, which may limit suitability assessment for quantitative modeling.

Provenance

Source

Geoscience Australia Data

Collection Method

Geological survey and mapping.

Time Range

Geological periods: Ordovician to Silurian.

Freshness

Last updated 2026-05-14 09:24:09.510877; freshness should be verified.

Geography

Australian Capital Territory and southeastern New South Wales, covering the Canberra 1:100 000 sheet area.