Figure 26. Schematic diagram illustrating the process of buoyant source magma rise in the Earth's crust, After Sharkov et al. [1997]: 1 - upper mantle; 2 - lower crust ("basalt" layer); 3-4 - upper crust: 3 - "granitic" layer, 4 - "sedimentary" layer; 5 - trend of magma source rise; 6 - large layered intrusion (upward): ultrabasic rocks, norite and gabbronorite, anorthosite, gabbronorite, and diorite; 7 - paths of magma migration from the source: a - maintained, b - reworked during subsequent processes.