Rarotonga hotspot, but its older members appear to be offset slightly north of the reconstructed path. Some seamounts on the reconstructed path of the Rarotonga hotspot share geochemical traits with the hotspot, but with different lead isotope ratios. Hemler Guyot has similar isotope ratios as Rarotonga and its reconstructed position match those of the Rarotonga hotspot. References Sources Geology of the Pacific Ocean Hotspots of the Pacific Ocean Rarotonga