A ________ is an open cavity in a volcanic rock that was filled by a gas bubble when the lava was still mainly liquid.
A) porphyrocryst
B) vesicle
C) phenocryst
D) xenocryst
Correct Answer:
Verified
Q37: Mafic rocks like basalt and gabbro _.
A)are
Q38: 98% of most common crustal igneous rocks
Q39: The most common ferromagnesian silicate minerals by
Q40: The most common non-ferromagnesian silicate minerals (>40
Q41: Match the description with the appropriate texture.
-_
Q43: How long does it take for a
Q44: Match the description with the appropriate texture.
-_
Q45: Which magma is most likely to quench
Q46: Match the description with the appropriate texture.
-_
Q47: What are vesicles?
A)open voids in an igneous
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