Multiple Choice
Intermediate rocks like andesite and diorite ________.
A) are major constituents of the oceanic crust
B) rarely contain plagioclase feldspar, pyroxenes or amphiboles
C) form mainly in convergent continental margins
D) contain the semiprecious gems beryl, topaz, and tourmaline
Correct Answer:
Verified
Correct Answer:
Verified
Q100: The last minerals to crystallize in Bowen's
Q101: Exceptionally coarse grained felsic plutonic rocks that
Q102: What do pumice and obsidian have in
Q103: Briefly explain how magma compositions can change
Q104: Intrusive rocks are named for the old
Q106: Which magma is most likely to quench
Q107: Name the texture that requires a magnifying
Q108: In general, what happens in terms of
Q109: Which texture would be most unlikely to
Q110: What type of igneous rock is both