Question

What are the effects of heat and pressure in the formation of igneous rocks?

Answer 1

Heat and pressure turn any kind of rocks into metaphoric rocks.

Explanation:

Metaphoric means "changed" . (think about how tadpoles change into frogs, or caterpillars turn into butterflies. )

Heat and pressure change sedimentary or igneous rocks into new forms.

These new forms are different from the original igneous rocks and are called metaphoric rocks. It is even possible for existing metamorphic rocks to under go further metamorphism that turns them into higher grade metamorphic rocks. For example, a shale can become a slate (metamorphic rock), but with continued pressure can become a phyllite, then a schist, or even a gneiss if metamorphic conditions persist.