5028 Block 1 (Southwest): Total Magnetic Intensity Grid with RTP and 1VD

2024 magnetic survey data from the Narryer region in Western Australia, consisting of 415,090 line-kilometres of airborne measurements. The grid, processed by Geoscience Australia, shows the first vertical derivative of the total magnetic intensity after reduction to the pole, with a cell size of approximately 20 meters. This data can be interpreted to reveal the geological structure of the subsurface.

Use Cases

• Map subsurface geological structures based on magnetic anomaly patterns.
• Locate features like dykes based on the magnetic response of contrasting susceptibilities.
• Support mineral exploration efforts by interpreting the processed magnetic intensity grid.

Strengths

• Data is quality-checked by GA geophysicists to be fit-for-purpose.
• Survey consists of 415,090 line-kilometres of data at 100m line spacing.
• Processing includes a variable reduction to the pole and a first vertical derivative for enhanced interpretation.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count and dataset size are unknown, which may limit suitability assessment.

Provenance

Source

Geoscience Australia Data

Collection Method

Airborne magnetic survey acquired by the WA Government in 2024, processed using INTREPID Geophysics software.

Time Range

2024

Freshness

Last updated 2026-05 14 09:22:28.309747; freshness should be verified.

Geography

Narryer survey region, Western Australia (5028 Block 1, Southwest)