Presentation on theme: "Chapter 2 Lesson 5: Metamorphic Rock. 1. What is a Metamorphic Rock? A metamorphic rock is any rock that forms from another rock as a result of changes."— Presentation transcript:
1. What is a Metamorphic Rock? A metamorphic rock is any rock that forms from another rock as a result of changes in heat or pressure (or both heat and pressure). The rock can change both its shape and its composition.
2. What can a metamorphic rock form out of? Igneous Sedimentary Other metamorphic rocks
3. How do geologists classify metamorphic rocks? According to the arrangement of the grains making up the rock.
4. What is foliated? Metamorphic rocks that have their grains arranged in either parallel layers or bands are said to be foliated. Foliated describes the thin, flat, layering found in most metamorphic rocks. The grains have been flattened.
5. A non-foliated rock contains….. A) no distinct layers or bands B) fossils of tiny organisms C) cemented sediment D) hardened lava
A non-foliated rock’s grains are arranged randomly!
What type of rock is formed when heat and/or pressure is applied to each? 6. granite- gneiss 7. shale- slate 8. Quartz sandstone- quartzite 9. Limestone- marble
How can these metamorphic rocks be used? 10. Marble- it has an even grain therefore it can be cut into thin slabs or carved into many shapes. It is also easily polished. Lastly, sculptures use it for statues and buildings. 11. Slate- This comes in many colors such as grey red and purple. It is Foliated. It is used for roofing, outdoor walkways and trim for stone buildings.
12. The deeper that a rock is buried in the crust the ______ the pressure on that rock. greater