Is the lower mantle boring? For a long time, the lower mantle was thought to be relatively featureless and uniform compared to the more dynamic upper mantle. But recent seismic observations are challenging that idea, especially when we look near the base of the mantle. Recent studies from Maureen Long’s group (Creasy et al. 2017, Wolf et al. 2019, Reiss et al. 2019, Wolf & Long, 2023) and othe ...[Read More]
Bored by the Lower Mantle? Think Again!
Conceptual sketch illustrating the complexity of upwellings observed beneath hot spots. From Wamba et al 2023. https://www.science.org/doi/10.1126/sciadv.ade3723