Fig. 4: Mineral modes dependent on composition and thermal gradient.
From: Metamorphism of Venus as driver of crustal thickness and recycling
Modal proportions (in vol%) of calculated equilibrium mineral phases for peridotite (A, D, G, J, M), basalt (B, E, H, K, N), and alkali basalt (C, F, I, L, O) and thermal gradients of 5 (A, B, C), 10 (D, E, F), 15 (G, H, I), 20 (J, K, L), and 25 (M, N, O) °C/km. Phases present as traces of <1 vol% are not shown. See Fig. 3 for mineral abbreviations. The depth (x-axis) varies per thermal gradient.
