Figure 5. Replenishment of fresh magma into a crystallizing intrusive chamber (with reference to the "Sopcha ore bed'' in the Monchegorsk Pluton. (1) Fresh magma; (2) evolved magma in the intrusive chamber; (3) zone of crystallization; (4) orthopyroxene cumulate; (5) peridotite cumulate; (6) lower marginal zone; (7) Archean wall rocks.