Final answer:
Metamorphism that occurs due only to an increase in pressure, not temperature, is called dynamic metamorphism.
Step-by-step explanation:
Metamorphism produced by increasing pressure but not temperature is called dynamic metamorphism. This type of metamorphism occurs when intense pressure re-orientates the minerals within a rock, typically during tectonic plate collisions, without a significant change in temperature. Dynamic metamorphism results in the recrystallization of minerals in the rock under solid-state conditions, meaning the rock does not melt but undergoes a transformation in its crystal structure and mineral composition. Metamorphic rocks formed under these conditions may exhibit a texture known as foliation, which is the alignment of mineral grains or crystal structures within the rock.