Magnetic and multibeam surveys provided the location of ridge axis, that appears to be offset to the W at latitude 54 00'S and 53 30'S. The resulting full spreading rate (Cande and Kent, 1992 time scale) ranges from 2.4 cm/yr to 3.3 cm/yr.
Three stations (24, 25, 26) were sampled in the neovolcanic zone. The southern one recovered fresh Cpx-Ol-Pl phyric basalts. In the mid one we obtained (Pl)-Ol phyric basalts. In the northern one we collected glomero (Cpx)-Ol-Pl porphyric basalts from a beautiful big fresh lava burr.