Warm Up What are two ways metamorphic rocks

Warm Up What are two ways metamorphic rocks are formed.

Metamorphic Rocks

Review: 3 Types of Rocks? • Igneous– form from solidification of molten (liquid) rock material. Most common rock in crust. • Sedimentary– form from compaction and cementation of sediments. Common on surface. • Metamorphic– form from re -crystallization of existing rock material. 3

Metamorphism • High temperature and pressure without melting. Changes form while remaining solid. – Earth’s internal heat => high temperature – Weight of overlying rock => high pressure – Compressive forces => high pressure 5

3 Types Metamorphic Rock • Three types of metamorphic rock: – Contact – touch with molten rock – Hydrothermal – high temp fluid – Regional – high pres + high temp, plates 6

• Contact Metamorphism- metamorphism from contact with magma 7

Regional Metamorphism- metamorphism from pressure of the Earth’s Crust • Low grade = lowest temperature and pressure • High grade = highest temperature and pressure

Metamorphic Rock Textures • Foliated Metamorphicmetamorphic rock with folds or bands • Nonfoliated Metamorphicmetamorphic rock without folds or bands

Metamorphic Rocks Parent Rock = Sandstone Metamorphic Rock = Quartzite

Metamorphic Rocks Parent Rock = Limestone Metamorphic Rock = Marble

Metamorphic Rocks Parent Rock = Shale Metamorphic Rock = Slate

Metamorphic Rocks Parent Rock = Granite Metamorphic Rock = Gneiss

Metamorphic Rocks Parent Rock = Bituminus Coal Metamorphic Rock = Anthrocite Coal

Create a Flow Chart using the following terms: ü ü ü Crystallization (cooling and hardening) Igneous rocks Metamorphic rocks Sedimentary rocks Sediments Melting Heat/Pressure (2 times) Weathering/Erosion Deposition/Compaction/Cementation Uplift (3 times) Magma

Sediments Weathering/Erosion Uplift Deposition Compaction Cementation Uplift Igneous Rocks Sedimentary Rocks Crystallization Magma Heat/Pressure Melting Metamorphic Rocks