metamorphic rock

When high temperature and pressure combine and charge the texture, mineral composition, chemical composition of a rock without it melting it, what kind of rock forms?

• A metamorphic rock forms

• Metamorphic rock

Where do the high temperatures needed for metamorphism come from?

• They are ultimately deprived from earths heat either through deep burial or from nearby igneous intrusions

• First one

Where do the high pressures needed for metamorphism come from?

• They come from deep burial or compression during mountain building

• Yeah

During metamorphism, the minerals in a rock undergo solid-state alterations, which means they ________________ that are stable under the new temperature and pressure conditions

• Change into new minerals

• Yo

What metamorphic rock texture is characterized by layers and bands of minerals caused by high pressure during metamorphism?

• Foliated

• Ye

Foliation develops when pressure is applied from opposite directions. The foliation develops ___________ to the pressure direction.

• Perpendicular

• H

What are some examples of foliated metamorphic rocks ?

• State,phylite, schist , gneiss

• H

What metamorphic rock texture is composed mainly of minerals that form with blocky crystals shapes instead of layers or bands of minerals?

• Nonfoliated

• H

What are some examples of nonfoliated metamorphic rocks?

• Quartzite and marble

• The

Metamorphic rocks can sometimes have large crystals surrounded by smaller crystals. What are the large crystals called

• Porphyroblasts

• The