Abstract
A new global S-wave velocity model reveals that although mid-ocean ridges and hotspots are both underlain by low-velocity anomalies in the mantle, these have distinctly different structures. This implies that there are differences between the upwelling mechanisms under ridges and under hot-spots. The velocity model also shows that there may be interactions between ridges and hotspots near Afar and St Helena.
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Zhang, YS., Tanimoto, T. Ridges, hotspots and their interaction as observed in seismic velocity maps. Nature 355, 45–49 (1992). https://doi.org/10.1038/355045a0
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DOI: https://doi.org/10.1038/355045a0
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