Both airborne gravity gradiomety (AGG) and magnetic geophysical surveys were carried out in the Mcfaulds Lake region between 2010 and 2011.
The Thunderbird deposit consists of semi-massive vanadium and titanium enriched magnetite, which correspondences to a strong gravity and magnetic anomaly. Noront Resources, owner of the claim, estimates the ore body at 1.6 km long, 400 m wide and 500 m deep, based on gravity and magnetic data and limited core drilling
Panel (a) shows the Gzz component of the observed AGG data in UTM coordinates.
Panel (b) shows the observed TMI data map
The Thunderbird deposit consists of semi-massive vanadium and titanium enriched magnetite, which correspondences to a strong gravity and magnetic anomaly.
Panels (a) and (b) show vertical sections of the standalone inverted density and magnetization vector models.
Panels (c) and (d) show vertical sections of the Gramian jointly inverted density and magnetic vector models.
Panels (e) and (f) show vertical sections of the jointly focused inverted density and magnetic vector models.
One can see that the image in the right panel produced by joint inversion represents the location of the deposit correctly
Left panel shows the volume image of the inverse susceptibility model.
Right panel presents the volume image of magnetization vector produced by joint inversion.
The black-yellow-black solid line shows the location of the borehole.
The yellow color indicates the mineralization zone confirmed by drilling.