Western Australia Magnetic Intensity Grid at 0.0025-Degree Resolution

Total magnetic intensity data for Western Australia reveals subsurface geological structures through variations in the Earth's magnetic field measured in nanoTesla. This geodetic grid has a cell size of 0.0025 degrees, approximately 266 meters. The data was acquired in 2005 by the WA Government and processed by Geoscience Australia geophysicists.

Use Cases

• Map subsurface geology by interpreting magnetic anomaly patterns from the total magnetic intensity grid.
• Identify mineral deposits by correlating positive or negative magnetic anomalies with rock susceptibility data.
• Model regional magnetic field variations using the nanoTesla values across the 0.0025-degree cell grid.
• Integrate magnetic data with other geophysical surveys for comprehensive geological mapping of Western Australia.

Strengths

• Data processed via standard methods to isolate the magnetic response from crustal rocks.
• Quality-checked by Geoscience Australia geophysicists to ensure fitness for purpose.
• Grid provides consistent coverage for both onshore and marine areas of Western Australia.

Limitations

• Acquisition year is 2005, making the data potentially stale for recent geological changes.
• Specific acquisition details like line-kilometres and line spacing are listed as 'None', indicating metadata gaps.

Provenance

Source

WA Government, processed and released by Geoscience Australia via the Australian Ocean Data Network.

Collection Method

Airborne or marine magnetic survey data processed via standard geophysical methods to produce a grid.

Time Range

Data acquired in 2005.

Freshness

null

Geography

Western Australia, including onshore and marine areas.