Magnetic maps can show different rock units, and the structures affecting them. Variations in the type and abundance of magnetic minerals, like magnetite, in the earth cause strong variations in the magnetic field measured from aircraft on ground-based surveys. These variations are used to map rock units and the distribution of key minerals that may indicate the presence of mineralisation. Magnetics is particular powerful in mapping the small mineralogy changes that are associated with faults and other structural features which often control the distribution of mineralisation in the earth.
Magnetic image (TMI)
Enhanced magnetic image (TMI 1VD)
HPX uses a variety of proprietary techniques to more accurately delineate, model, and assess those critical variations. HPX’s magnetic methods remove a common source of spurious anomalies found in traditional magnetic surveys. This processing provides an accurate image of magnetic properties and leads to more accurate geophysical modelling and targeting.
The original magnetic data shows a strong positive response in the north, but little in the south
HPX processing shows that the target is larger than the original image, and extends to the south
The satellite data shows that mining occurs south of the original positive response - where the HPX processing indicated it would be.