Extended Data Fig. 4: Periodicity of SCLM transport into the oceanic asthenosphere.
From: Enriched mantle generated through persistent convective erosion of continental roots

Lomb-Scargle periodograms (see Methods) showing pulsing of decoupled EM1-type material on 5-6 Myr periods. The upper and lower plots were constructed 200 km and 150 km, respectively, from the COB (for context, refer to Fig. 3a–b).