Fig. 2: Sample site locations and tectonic features.
From: Synchronous motion of the Easter mantle plume and the East Pacific Rise

40Ar/39Ar dates and geochemical data are reported for sample sites marked by solid black dots. Geochemical data are available for sites marked with black open circles. Yellow dots are for dredge sites with Ar/Ar dates in the literature12. White lines represent a simplified tectonic interpretation showing the main features associated with the Easter microplate - dashed for active spreading ridges9. The other tectonic features are after Wilder44. ER: East Rift; SWR: Southwest Rift; WOPF: west outer pseudo fault; WIPF: west inner pseudo fault; OFZ: Orango FZ; STJ: Southern Triple Junction; VER: volcanic elongate ridge; EPR: East Pacific Rise. Map prepared in GeoMapApp.