Multiple Choice
Why are intrusive igneous rocks exposed today?
A) Mountain building events uplift belts of mantle.
B) Wind, water, and ice erode overlying rock to expose igneous rocks.
C) Dikes and sills bring intrusive igneous rocks above the surface.
D) There are many theories to explain this, but none have been widely accepted.
Correct Answer:

Verified
Correct Answer:
Verified
Q2: Radioactive isotopes,differentiation of Earth's iron core,gravity-driven compression,and
Q12: Magma tends to _.<br>A)move upward,away from where
Q30: In Bowen's discontinuous reaction series,the first mineral
Q33: Coarse-grained granite is most similar in mineral
Q39: Mt.Kilimanjaro and the Basin and Range Province
Q47: All of the Earth's internal heat was
Q53: All other factors being equal,intrusive rocks that
Q57: As compared to aphanitic igneous rocks,phaneritic rocks
Q60: Consult the figure below.Large igneous provinces can
Q63: Which is the best analogy for the