Name: ________________
Section: _______________
Bedrock Geology Review Packet
Sedimentary Rock:
How is it made?
An example
Clastic
Chemical
Organic
What does precipitation mean?
Sediments are carried by wind and water until they come to rest. What is this process is called?
What are the two process that create most sedimentary rock?
Why are coal, oil, and natural gas called fossil fuels? What kind of sedimentary rock are they?
A geologist finds limestone on top of a mountain, what does that mean about how the landscape has
changed?
Igneous Rock:
Cools above or below ground?
Cools fast or slow? Big or small / no crystals?
Intrusive
Extrusive
How is new igneous rock created from sedimentary or metamorphic rock?
What is a batholith?
What is molten rock on the surface of the earth called? What if it is underground?
Metamorphic Rock:
Metamorphic rock is created from __________ and ____________.
True / False: As you go deeper into the earth, pressure increase but heat decreases. Why?
When rock undergoes extreme heat and pressure, parallel bands are formed. What is this called?
If metamorphic rock melts, what kind of rock does it become? ________________________________
Describe how each type of metamorphism occurs
Contact Metamorphism
Regional Metamorphism
Folds and Faults:
Why does rock break when faults occur, but they only bend when there is folding?
Label the following folds and faults and say what forces (tension, compression, shear) were at work:
Weathering and Erosion:
What are the 3 types of weathering? Give two examples of each
What is the difference between weathering and erosion? Why is it sometimes hard to distinguish them?
What creates V-shaped canyons like the Grand Canyon? What creates U-shaped valleys?
Weathering and Erosion are an important part of creating what kind of the three types of rock? Why?
Rock Cycle:
Fill in the red circles with the correct processes to complete the rock cycle:
What does the theory of Uniformitarianism say? Why is it important?
Interpreting Principles / Dating Methods:
How does tree ring dating work? Is this an example of relative or absolute dating? Why?
What is the Law of Superposition? Is this relative or absolute dating? Why?
What are index fossils? How do they help scientists date rocks?
Is radioactive dating absolute or relative dating?
List the order of geologic events for the cross-section below. Include tilting, folding, faulting, and erosion.
1. ______________
2. ______________
3. ______________
4. ______________
5. ______________
6. ______________
7. ______________
8. ______________
9. ______________
10. _____________
11. _____________
12. _____________
13 ______________
(there are 13 by my count, let me know
if you get something different. This one
is hard!)
Why is it important that absolute dating measurements have never shown relative dating techniques to be
incorrect?
Geologic Time:
How old is the Earth?
If Earth’s history were a year, at what point did human beings come into existence?