Metamorphic Rocks

14.10 Metamorphic Rock Formation Def: older rock changes form into another type of rock by heat/pressure Met Rock Animation Rock Animations - Review

14.11 Met Rock Textures Foliated~ parallel banding/visible layers Non-foliated ~ mostly one mineral, larger interlocked crystals

Metamorphism Types Contact: magma causes rock to undergo temperature change

Metamorphism Types Regional- large areas of Earth mountain building directed pressure Example: Himalayas

14.12 Parent Rock Older rock that undergoes metamorphic change Parent rock can be ign. or sed. rx Parent: Granite Met Rock: Gneiss

Recrystalization of Quartz  Sandstone  Quartzite Recrystalization of Quartz 

Shale  Slate Cleaves in sheets

Bituminous Coal  Anthracite Coal

Limestone  Marble

Banded Iron Formation (BIF) Jaspilite