Fig. 1From: Seafloor hydrothermal alteration affecting magnetic properties of abyssal basaltic rocks: insights from back-arc lavas of the Okinawa TroughRegional (top) and local (bottom) bathymetric map shown with locations of studied volcanic rocks collected in the Irabu knolls of the Okinawa Trough. Contour intervals of top and bottom maps are 1000 m and 40 m, respectivelyBack to article page