Fig. 7: Relative motion between the evolving Easter microplate and the Easter plume.

A Magnetic anomaly ages and isotopic dates are plotted versus longitude. The dashed diagonal blue line is for the propagation and clockwise rotation of the (north end) of the East Rift (see also Fig. 8). The vertical dashed and solid red lines are for the western side of the Easter plume and the EPR to the south at 3.5 Ma and 0 Ma, respectively. Note the convergence of the East Rift with the west side of the plume and the EPR to the south between 3.5 Ma and 0.8 Ma. The vertical dashed black line represents the corresponding opposite propagation of the SW Rift until around 0.8 Ma. Other details as in Fig.6. B This map is like 6B. Small black and blue dots represent picks on the west and east sides of the East Rift, respectively. The triangles are associated with picks on the transferred and rotated Nazca lithosphere and on the crust formed on the microplate side of the West Rift. The white stars are for 0 Ma picks defining the ___location of the East Rift. The solid red circle is for the Easter plume at the plate surface (as defined seismically in Fig. 10). The dashed red circle is for the ___location of the plume at 3.5 Ma.