Fig. 2
From: Peridotites with back-arc basin affinity exposed at the southwestern tip of the Mariana forearc
a Peridotite outcrop on the southwestern slope of the 139°E Ridge (4960 mbsl; dive 6K1397). b Volcanic and carbonate gravels that cover the shallower part of the southwestern slope of the 139°E Ridge (1984 mbsl; YKDT-170). c Mn-coated volcanic rubble covering a small knoll on the northern flank of the 139°E Ridge (2608 mbsl; YKDT-171). d Photograph of a saw-cut surface of peridotite sample 6K1397-R04. e Photograph of a saw-cut surface of peridotite sample 6K1397-R08