The classical view of magma-poor rifted margin (magma-poor or non-volcanic in other literature) as typified by previous interpretations of the Alpine-Tethys paleomargin, the Iberia-Newfoundland margins, and elsewhere in the Atlantic, Arctic, Indian Oceans and Antartic-Australian margins (e.g., Franke, 2013; Tugend et al., 2019, McCarthy et al. 2020). Lava-poor margins are characterized by an absence of seaward dipping reflectors (SDRs), seaward dipping normal faults along the rift flanks, exhumation of the lower crust and mantle by low-angle detachment faults, and structural asymmetry between conjugate margins. While volcanism is not as widespread as at volcanic margins, it is not absent or even rare in lava-poor settings except in the end-member case of the Iberia-Newfoundland margin. Magma bodies form in the mantle and lower crust in the lead up to seafloor spreading, but are not expressed at the surface as 5-15 km thick SDRs.