Identifying the secular evolution of chemical heterogeneity in the mantle as probed by deep mantle plumes

This research proposal will focus on modes and timescales of melting associated with deep mantle plumes. These melts form massive magmatic bodies and volcanic flood basalt provinces throughout Earth's history and record the secular chemical evolution of the Earth's mantle. Selective igneous bodies contain high-grade noble metal deposits and coincide with global mass extinction linked to anoxic ocean events in response to atmospheric volcanic pollution. Research outcomes will provide knowledge of planetary surface evolution in response to mantle dynamics, place constraints on enrichment processes of metals in ore quality in plumederived melts, and may help understanding the relation between massive volcanic eruptions and climate variability