February 2012 Interactives. The Rock Cycle. The Rock Cycle

 3.c.  Students know how to explain the properties of rocks based on the physical and chemical conditions in which they formed, including plate tectonic processes.

Students will be able to: 1. List the two things required to create a metamorphic rock. 2. List and describe the two types of textures for metamorphic rocks.

 Rocks that are created by the changing of one type of rock (igneous, sedimentary, or other metamorphic rocks) by Heat Pressure

Metamorphic Rocks Formed by HeatPressure

TTwo types of metamorphic rock textures: Foliated Nonfoliated

Metamorphic Rocks Formed by Heat Pressure Textures are Foliated Nonfoliated

Foliated – Pressure flattens minerals and pushes them into parallel bands. Gneiss Schist Slate

Metamorphic Rocks Formed by Heat Pressure Textures are Foliated Nonfoliated Examples Foliated Gneiss, Schist Slate

Development of foliation due to directed pressure From Granite To Gneiss

Nonfoliated – No bands !! Quartzite Marble Parent rock is Sandstone Parent rock is Limestone

Metamorphic Rocks Formed by Heat Pressure Textures are Foliated Nonfoliated Examples Foliated Gneiss, Schist Slate Nonfoliated Quartzite Marble

Finish Rock Table by looking at Metamorphic rocks and recording your observations. You have about 15 minutes