Plume or no plume: Emeishan Large Igneous Province in Southwest China revisited from receiver function analysis

• Upper mantle discontinuity shows a cold domain beneath the Emeishan LIP. • Suggesting lower crustal delamination in the Emeishan LIP. • Delamination leading to asthenospheric influx and plume-like upwelling. The Late Permian Emeishan Large Igneous Province at the western margin of the Yangtze craton and eastern Tibet is popularly regarded as the signature of mantle plume impingement onto the lithosphere. In this study, we investigate the...