Metamorphic Rocks Metamorphic rocks form from heat and pressure deep beneath earths surface

Metamorphic Rocks Metamorphic rocks can form out of igneous, sedimentary, or other metamorphic rocks

Metamorphic Rocks Foliated – wavy layers due to high pressure Nonfoliated – blocky crystal shapes Non- marble, quartzite. Foliated – gnesis, schist

Regional Metamorphism – high temp/pressure affects a large region Metamorphic Rocks Regional Metamorphism – high temp/pressure affects a large region

Belts are divided into zones based on minerals found in the rocks Regional Belts are divided into zones based on minerals found in the rocks

Temp decreases with distance Metamorphic Rocks Contact Metamorphism – large scale mineral changes with little deformation Temp decreases with distance