5028 Block 4 (Northeast) reduced magnetic point-located data
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GENERAL Total Magnetic Intensity (TMI) data measures variations in the intensity of the Earth's magnetic field, which includes the fields associated with the Earth's core, diurnal variations, and the magnetism of rocks in the Earth's crust. TMI data is used for geological mapping, mineral exploration, and environmental studies. REDUCED DATA The reduced point-located data are processed to highlight the response of the subsurface geology in the Earth’s crust. It has the following reductions applied: 1. Compensated for manoeuvre noise and heading error. 2. Diurnal correction. 3. Geomagnetic Reference Field correction. 4. Tie-line levelling. 5. Micro-levelling. This line dataset from the Narryer survey were acquired in 2024 by the WA Government, and consisted of 415090 line-kilometres of data at 100m line spacing and 50m terrain clearance.



