Magma is resurfaced from volcanic activity, cools, and becomes igneous rock.
Layers deposited begin to compact and cement together to form sedimentary rock.
Sedimentary rock is buried deeper into the earth's crust. The intense heat and pressure begins metamorphism and the rock turns into metamorphic rock.
Rock is broken down into regolith by weathering.
Regolith is dumped into some type of reservoir, usually water, by deposition.
Regolith is transported or eroded by rain or wind.
Metamorphic rock begins to melt back into magma.