Fig. 11
From: Hadean/Eoarchean tectonics and mantle mixing induced by impacts: a three-dimensional study
Time-evolution of the azimuthally averaged basalt fraction for various yield stress values and with or without impacts for both 2-D and 3-D cases. Top panels show the basalt fraction near the 660 km discontinuity (between 640 and 690 km depth), while the lower panels show the basalt fraction of the bottom 245 km of the mantle. On the vertical-axis, 1.0 is basalt, while 0.0 is harzburgite. The spread of values for 5 different impact histories in 2-D is shown