Fig. 5
From: Ancient slabs beneath Arctic and surroundings: Izanagi, Farallon, and in-betweens
Map views of \({V}_{P}\) tomography at a depth of 800 km for a Region 1 only, b Regions 1 and 2, c Regions 1–4, d Regions 1–6, e Regions 1–6, 8, and 11, and f Regions 1–12. The blue and red colors denote high and low \({V}_{P}\) perturbations, respectively, whose scale (in %) is shown on the right. Areas with average hit counts < 20 are masked in gray. Thick black lines: plate boundaries