How are earth’s layers interacting in order to form igneous rock?

At convergent point of plate boundaries, sedimentary rock that is present at ocean floor is pushed down  into mantle. Due to the continuous movement of rock into the mantle increase the crust the temperature. Thus after continuous rise of temperature, crust melts down and eventually rise to surface of earth in the form of volcanic eruption. and after cools down gives rise to formation of igneous rock.

Explanation:

Process of igneous rock is given below

At convergent point of plate boundaries, sedimentary rock that is present at ocean floor is pushed down  into mantle. Due to the continuous movement of rock into the mantle increase the crust the temperature. Thus after continuous rise of temperature, crust melts down and eventually rise to surface of earth in the form of volcanic eruption. and after cools down gives rise to formation of igneous rock.

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