rock cycle ppt copy_08079704-b18f-4e65-94a9-7201f43136fb.pptx

Rock cycle

1. The Rock Cycle What’s Energy Got to Do With It?

2. But First! Some background information…

3. What are Rocks? Rocks are aggregates of 2 or more minerals. Petrology is the study of rocks. There are three classifications of rocks: igneous, sedimentary, and metamorphic.

4. Igneous Rocks Granite is an igneous rock Igneous rocks are formed when molten rock ( magma ) cools and solidifies, with or without crystallization, either below the surface as coarse-grained, intrusive (plutonic) rocks or on the surface as fine- grained, extrusive (volcanic) rocks.

5. Sedimentary Rock Sedimentary rock is formed in three main ways: Limestone and shale are both types of sedimentary rock by the deposition of the weathered remains of other rocks (known as clastic sedimentary rocks) by the deposition of the results of biogenic activity ( organic) by precipitation from solution ( evaporites)

6. Metamorphic Rock Metamorphic rock is the result of the transformation of a pre-existing rock type. The pre-existing rock type is called the protolith . Pressure and heat physically and chemically change the protolith. Metamorphic means "change in form“. Slate is a type of metamorphic rock

7. Finally, The Rock Cycle! The Rock Cycle refers to the constant sequence of one type of rock turning into another. Click Here for an Animation that Further Explains the Rock Cycle Magma Sediment Sedimentary Igneous Metamorphic