1. Rocks and the Rock Cycle

2. Let’s Review!! Grains Texture Extrusive Intrusive Porphyritic Sediment
Erosion
Deposition
Compaction
Cementation
Clastic rock
Organic rock
Chemical rock
Foliated

3. Sedimentary Rock
Form from particles (sediments) deposited by wind and water.
Sediment undergoes the cycle of Erosion, Deposition, Compaction, and Cementation (or lithification)
There are three main types of Sedimentary rocks
Clastic, Organic, and Chemical

4. Sedimentary Rock How Sediments are Deposited
Clastic Sedimentary Rock Forming
Clastic Sedimentary Rock Forming

5. Igneous Rock Any rock that forms from magma or lava. (fire rock)
Can be extrusive or intrusive.
Classified according to its:
Origin (Intrusive/Extrusive)
Texture (fine/coarse grained, porphyritic, etc.)
Mineral Composition (silica content)

6. Igneous Rock
How Igneous Rock Forms

7. Metamorphic Rock Changed Rock
Heat and pressure change any rock into metamorphic.
Classified by the arrangement of the grains:
Parallel bands: foliated
Randomly: non-foliated

8. Metamorphic Rock
Metamorphic Rocks Forming

10. Rock Cycle
Forces inside Earth and at the surface produce a rock cycle that builds, destroys, and changes the rocks in the crust.

11. Rock Cycle
The rock cycle is the series of processes on and beneath the Earth’s surface that slowly change rocks from one kind to another.

12. Rocks Changing
Any rock can become any other rock in the rock cycle.

13. The rock cycle can progress through many different pathways.
One example might include: molten rock spews from a volcano and cools forming igneous rock, which gets eroded and deposited as sedimentary rock which gets pushed down further into the crust and becomes metamorphic.

14. Tell the Pathways