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What is stick-slip behavior?
how a rock strains as stress builds up and then ruptures
during an earthquake, returning to its original shape
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What is molten rock beneath the Earth's surface called? Magma
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The main difference between intrusive and extrusive igneous rocks is
where they solidify
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Which of the following minerals crystallizes from a magma at the lowest
temperature?
Quartz
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The classification of igneous rocks is dependent on texture and
the relative
proportion of silicate minerals
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Which of the following minerals is common in both sialic/felsic and mafic
igneous rocks?
Plagioclase feldspar
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Which of the following pairs of intrusive and extrusive rocks have the
same chemical composition?
gabbro and basalt
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Which of the following types of igneous rocks crystallizes deep within
the Earth's crust? Gabbro
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Which of the following best describes a rhyolite?
fine-grained igneous rock rich
in silica (sialic)
