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What type of igneous rocks are formed when magma cools rapidly, resulting in a glassy texture?
What type of igneous rocks are formed when magma cools rapidly, resulting in a glassy texture?
Extrusive igneous rocks
What is the primary factor that determines the grain size of crystals in an igneous rock?
What is the primary factor that determines the grain size of crystals in an igneous rock?
Rate at which molten rock cools
What is the name of the model that explains the formation of different minerals in igneous rocks?
What is the name of the model that explains the formation of different minerals in igneous rocks?
Bowen's reaction series
What type of rocks are characterized by coarse grains and relatively even individual crystals?
What type of rocks are characterized by coarse grains and relatively even individual crystals?
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What is the term for the study of the compositions, structures, and origins of rocks?
What is the term for the study of the compositions, structures, and origins of rocks?
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What type of igneous rock is characterized by a high feldspar and silica content?
What type of igneous rock is characterized by a high feldspar and silica content?
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