The fractional crystallization of mafic magmas into both mafic and felsic rocks cannot account for all the igneous rocks in existence. What other processes can be used to explain why felsic igneous rocks are so abundant?
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Q47: Explain the correlation between Bowen's reaction series
Q48: An aphanitic mafic rock is a:
A) gabbro.
B)
Q49: Batholiths are primarily composed of intermediate and
Q50: Describe how the factors of heat, pressure,
Q51: Where are most igneous rocks found?
A) Either
Q53: Why are basalt and gabbro the only
Q54: What is the last mineral to form
Q55: The existence of both intrusive and extrusive
Q56: What is the origin of the two
Q57: A laccolith is a:
A) domed, concordant pluton.
B)
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