AbstractMesoarchean magmatism is widespread on the eastern margin of the Kaapvaal Craton. but its origin is still poorly understood. mainly because geochemical data is rare. To shed some light on the source of this Mesoarchean magmatism and to relate different Mesoarchean volcanic sequences to each other. https://www.roneverhart.com/2-1-2-x-1-4-x-36-Smooth-Saddle-Threshold-NGP-410-36/