Metamorphic Rocks

Metamorphic Rock Examples Anthracite Coal High quality, creates lots of energy when burned Quartzite Tough building material

Metamorphic Rock: Marble

Metamorphic Rock: Slate Used for: Billiards, chalkboards, roofs, floors

Metamorphic Rock Examples Gneiss Schist

Metamorphic “meta” = to change “morph” = form Metamorphic rocks are formed from Parent rocks (pre-existing rocks) Parent rocks can be Igneous, sedimentary, or other metamorphic rocks. Metamorphism The process through which a rock’s structure is changed by heat and pressure

Metamorphic Rocks are Formed from Parent Rocks Quartzite is the Metamorphic rock Sandstone is the Parent Rock (Parent Rock)

 Parent rock of Marble Limestone Marble Used For: Statues, buildings, countertops

Metamorphic Rocks are Formed from Parent Rocks Slate Shale Which specimen is the parent rock? Shale

Metamorphic Rocks are Formed from Parent Rocks Parent Rock  The original rock material that forms metamorphic rock Example:  Gneiss Granite

2. Non-foliated Rock  Without bands Metamorphic Textures 1. Foliated Rock  Bands of minerals in parallel layers 2. Non-foliated Rock  Without bands

Foliated Metamorphic Rock Examples: Schist Phyllite Slate

Non-foliated Metamorphic Rock Examples: Marble  Quartzite 

Metamorphic Environments: Form where there is HEAT & PRESSURE Magma and Friction make HEAT Collisions and Gravity produce PRESSURE

Metamorphic Cheer M-E-T-A MET-A-MORPH-IC Heat and Pressure Heat, Heat, and PRESSURE Go…… FOLIATION

METAMORPHIC ROCK TEXTURES Foliated (mineral bands) Non-foliated (no bands, grainy or smooth)

METAMORPHIC ROCK PARENT ROCKS Sandstone  Quartzite Limestone  Marble Shale  Slate Granite  Gneiss

METAMORPHIC ROCK META = CHANGE MORPH = FORM Metamorphism involves the change in form or structure of a rock through heat and pressure.

3 ROCK TYPES: Igneous-formed from the cooling and crystalization of magma Sedimentary-formed by the compacting and cementation of layers of sediment Metamorphic-formed by structural/chemical change due to heat and pressure

Metamorphic Rock Lab Set up your field notebook (Include Title) Rotate independently between the 16 stations set up around the room Start with whichever station number you are located Round 1: You will have 1 minute at each station Do not switch to the next station until told to do so Round 2: You may go back to any unoccupied station, if needed