Section 6-1 and 6-2 study guide
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How do geologists define “rock”?
How are rocks classified?
What are the three main types of rocks, explain how each type of rock forms
What is the process that will change any rock into a metamorphic rock?
What is the process that will change any rock into a sedimentary rock?
What is the process that will turn any rock into an igneous rock?
What is the rock cycle?
Explain any typical path a rock may take through the rock cycle
Other than heat and pressure, what can cause a rock to change into a metamorphic rock?
How can sediments form other than weathering and erosion?
a. Must know 2 processes.
All igneous rocks are classified according to two things: What are they (explain)
What 5 characteristics does a mafic rock melt typically have
a. __
b. __
c. __
d. __
e. __
What is viscosity?
What type of magma is most viscous?
What 5 typical characteristics does a felsic lava melt typically have?
a. __
b. __
c. __
d. __
e. __
What is another word for intrusive?
What is another word for extrusive?
What type of texture will an intrusive rock have?
What type of texture will a lava flow typically have?
Explain the process involved in porphyritic textured rocks
All rocks will gas holes in them are what type of texture?
Give an example of a glassy textured rock in the Gabbro family
Give an example of a fine textured rock in the Granite family
Give an example of a fine textured rock in the Andesite family
All rock families are named after what?
Give an example of an ultramafic rock
Give an example of pure felsite
Know a type of rock for every texture in the Granite and Gabbro family.
Know an example of a coarse and fine textured rock in the Andesite family
What are the characteristics of intermediate rocks?
What is the difference between a laccolith and a batholith?
What is the difference between a dike and a sill?
What is a stock?
All igneous intrusions can be called _____
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What forms the core of most mountains?
How do volcanic necks form?
Which type of igneous rock is typically intrusive? Why?
Which type of igneous rock is typically extrusive? Why?
Why is obsidian black if it has the same chemical composition of granite and rhyolite?