Fine-grained igneous rocks (grains < 1.0 mm) that have small grains cooled rapidly and are likely to be _______.
A) extrusive
B) reclusive
C) intrusive
D) obtrusive
E) preclusive
Correct Answer:
Verified
Q17: Mafic igneous rocks are silica-poor.
Q18: Diorite and andesite are composed of similar
Q19: The continuous branch in Bowen's Reaction Series
Q20: An ultramafic rock is composed almost entirely
Q21: Ultramafic igneous rocks are composed almost entirely
Q23: A useful tool illustrating the relationships among
Q24: _ is the predominant igneous rock of
Q25: Mineralogically and chemically equivalent rocks are _
Q26: Under ideal conditions rock can melt
Q27: _ igneous rocks, like gabbro and basalt,
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