Bubbles trapped in lava after the molten material are cooled are called __________ .
A) phenocrysts
B) vesicles
C) porphyroblasts
D) pyroclasts
Correct Answer:
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Q21: An irregular-shaped and blob-like igneous rock body
Q27: Ash,and larger fragments of pumice are all
Q29: Columnar jointing forms primarily because of _
A)Contraction
Q31: In the figure provided below, what type
Q33: A batholith is a(n) _ .
A)large body
Q34: Compared with coarse-grained igneous rocks, fine-grained igneous
Q35: All other factors being equal (i.e.,depth,volume,temperature,etc.),which type
Q35: Which of the following is NOT a
Q37: Magma tends to _.
A)move upward,away from where
Q40: All other factors being equal,if a body
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