Multiple Choice
The classification of igneous rocks is dependent on texture and
A) the relative proportion of silicate minerals.
B) the relative proportion of pyroclastic material.
C) the relative proportion of phenocryst minerals.
D) the relative proportion of vesicles.
Correct Answer:

Verified
Correct Answer:
Verified
Q35: Which igneous rock was used by Native
Q36: Which of the following tectonic settings has
Q37: Ultramafic lava flows are relatively uncommon.Why is
Q38: Where would you expect to find the
Q39: Which of the following minerals crystallizes from
Q41: The famous Mother Lode of the 1849
Q42: Which of the following best describes a
Q43: Which of the following statements is true?<br>A)Gabbro
Q44: What is the approximate silica content of
Q45: Which of the following processes would most