how does sedimentary rock become igneous
Sedimentary rock can be changed into igneous rock by undergoing melting and then solidification. At a subduction zone (at a convergent plate boundary, where one plate slides beneath another), layers of sedimentary rock will be assimilated into the mantle.edimentary rock to change to Igneous rock by applying heat and pressure, which creates Metamorphic rock. Next, Metamorphic rock turns to Magma because it melts. Lastly yo â¦ u have to let the Magma cool and it becomes an Igneous rock.