metamorphic
Exposure to intense heat and/or pressure can result in changes to a rock's mineralogy, crystal structure, and mineral alignment. Such changes can create a metamorphic rock.
heat and pressure
heat and pressure
Metamorphism....A metamorphic rock is a rock formed when it undergoes chemical reactions,tremendous heat and great pressure to form a new kind of rock from an existing one.
you expose the rock to extreme heat or pressure such that the rock changes.
A metamorphic rock is formed when sedimentary rock is subjected to heat and pressure!
A "metamorphic" rock forms.
To change a sedimentary rock to a metamorphic rock, you change it by time,heat, and pressure.
Granite
The heat (in the form of friction and pressure) affects the rock by performing a process called menstrual which changes the material of the rock, but not the mass.
Igneous or sedimentary rocks are transformed into metamorphic rocks through high pressure, temperature, or both. This process, known as metamorphism, occurs deep within the Earth's crust where rocks are subjected to intense heat and pressure, causing their mineral composition and texture to change without melting.
Metamorphic rock is formed by heat and pressure making changes to igneous and sedimentary rock.