Fig. 6
From: Global maps of the magnetic thickness and magnetization of the Earth’s lithosphere
The map of the quality index QI. Large values of QI indicate reliable magnetic thickness and magnetization estimates. The regional spectra of the four caps, whose centre is marked with a yellow star, are shown in Fig. 7. The regional spectra of the four caps, whose centre is marked with a pink star, are shown in Fig. 8. The white dots correspond to regions over which EMAG2 is void of near-surface data (see text for details)