Extended Data Fig. 2: Layer thicknesses used in calculating beta.
From: Preferential localized thinning of lithospheric mantle in the melt-poor Malawi Rift

Opacity scaled by standard deviation (as in Figs. 2, 3, S1). Plotted thicknesses are within 0.25° of a converted-wave pick, save crustal thickness beneath Lake Malawi. Grey lines: cross section locations (Fig. 2, S1). Blue line: Lake Malawi. a) Crustal thickness: difference between the topography (incorporating sedimentary basins in Lake Malawi25) and the Moho PVG. Crustal thickness beneath Lake Malawi is not masked as extrapolated crustal thicknesses are compatible with active source inversions55. b) Lithospheric thickness: difference between the topography and the LAB NVG. c) Lithospheric mantle thickness: difference between the Moho and the LAB. The mask is the maximum of the previous two panels.