Igneous
Sedimentary
Metamorphic
Relative Dating
Absolute Dating
100
all igneous rocks are formed by the cooling of this.
What is magma?
100
The three types of sedimentary rocks are chemical, organic, and this.
What is clastic?
100
Metamorphism changes igneous/sedimentary rocks under intense levels of these two conditions.
What are heat and pressure?
100
"Assuming no change in the position of the rock layers, the oldest will be on the bottom and the youngest on top."
What is the principle of superposition?
100
The three types of nuclear decay are alpha, gamma, and this.
What is beta?
200
Dark colored igneous rocks that form on the surface.
What are extrusive mafic igneous rocks?
200
This rock type is made from cemented sand grains.
What is sandstone?
200
Granite metamorphoses into this rock.
What is Gneiss?
200
Look at diagram 1. This is the second youngest layer.
What is layer A?
200
This particle has a mass of 0 and a charge of +1.
What is a positron?
300
The most abundant mineral in rocks.
What is quartz?
300
This dark-colored organic sedimentary rock is used as a fossil fuel.
What is coal?
300
This occurs when mineral grains are aligned into bands/layers.
What is foliation?
300
Look at diagram 2. Which layer(s) were folded?
What are H and D?
300
The half life of an isotope is 820 years. This many half-lives have occurred if 3280 years have passed.
What is 4 half lives?
400
A fine grained, mafic igneous rock.
What is basalt?
400
This sedimentary rock is made of round, gravel-sized grains cemented together.
What is conglomerate?
400
Limestone becomes this metamorphic rock.
What is marble?
400
Look at diagram 3. This many occurrences of erosion occurred.
What is 5?
400
The half life of iodine-131 is 8.04 days. How long will it take for the mass of iodine present to drop to 1/16?
What is 32.16 days?
500
This rock is also known as volcanic glass.
What is obsidian?
500
This is the chemical formula of limestone (remember HCl bubbles on its surface!)
What is Calcium carbonate (CaCO3)?
500
Quartzite is the metamorphosed version of what rock?
What is sandstone?
500
Look at diagram 4. How do you know that O is older than H?
Because there was contact metamorphism caused by igneous intrusion H
500
Radium’s half life is about 1600 years. How much of a 0.25g sample will remain after 8000 years?
What is 0.0078g of Radium?
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