Inference of a plume conduit beneath the Reunion Island from 3D migration of Ps conversions from the mantle transition zone.

ABSTRACT: The Réunion hotspot is the best example of a primary plume, manifested as intraplate-volcanism, a large igneous province and a geochemical anomaly. In this study, we investigate the mantle transition zone (MTZ) structure beneath the Réunion Island using 3D-migration of P-Receiver functions, to decipher the effect of the plume on the MTZ and its architecture. Results indicate a thin MTZ in the regions surrounding the Réunion, like Madagascar and its vicinity, eastern and south-eastern sides of the Réunion, suggesting high-temperature anomalies within, caused by the plume. Interestingly, we detect a depressed 410 km discontinuity exactly beneath the Réunion hotspot and a broader depression of 660 km discontinuity within and regions in its proximity. These maiden results shed-light on the hig

SUBMITTER: Rao BP 

PROVIDER: S-EPMC11954861 | biostudies-literature | 2025 Mar

REPOSITORIES: biostudies-literature