Northeast Narryer Thorium Concentration Grid at 20m Resolution

Geoscience Australia Data released a radiometric thorium concentration grid for the Narryer region in 2026. The dataset was produced from 415,090 line-kilometres of aerial survey data acquired in 2024 by the WA Government. It shows thorium element concentration in parts per million (ppm) on a grid with an approximate 20m cell size.

Use Cases

• Map subsurface thorium distribution based on gamma-ray spectrometry data.
• Interpret geological structure based on processed radiometric element concentrations.
• Support mineral exploration targeting based on thorium anomalies.
• Conduct environmental baseline studies based on natural radioactive element levels.

Strengths

• Data quality was checked by GA geophysicists to ensure it is fit-for-purpose.
• The grid is derived from 415,090 line-kilometres of aerial survey data.
• The dataset has a high spatial resolution with an approximate 20m cell size.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Freshness should be verified as the last metadata update was 2026-05-14.

Provenance

Source

Geoscience Australia Data

Collection Method

Aerial gamma-ray spectrometric survey processed via standard methods and NASVD reduction.

Time Range

Data acquired in 2024.

Freshness

Last updated 2026-05-14 03:38:11.863095

Geography

Narryer region, Australia.