An ultramafic igneous rock is one that contains about how much silica?
A) Greater than 65%.
B) 55% to 65%.
C) Less than 40%.
D) 45% to 55%.
Correct Answer:
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Q1: In an igneous rock with two distinct
Q2: An ultramafic rock has the highest proportion
Q3: The two properties used most to classify
Q4: Diorite is an example of an:
A) extrusive
Q6: Which is a common rock found on
Q7: Viscosity of a magma:
A) decreases with increasing
Q8: What is the process by which a
Q9: As the rate of cooling decreases, particle
Q10: Which of the following statements concerning batholiths
Q11: Most igneous rocks are composed primarily of:
A)
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