Fig. 6From: Using TNT-NN to unlock the fast full spatial inversion of large magnetic microscopy data setsAt left is a reflected light photo of the Hawaiian basalt thin section. At right is the SIRM B\(_z\) field map (the positive z-direction is out of page) obtained with a scanning SQUID in nT at a 100 \(\upmu\)m resolution with a sensor-to-sample distance of 200 \(\upmu\)m. The B\(_z\) field of view is 19.0 mm \(\times\) 25.0 mmBack to article page