Igneous rocks ________.
A) are formed through the freezing or crystallization of a melt
B) are formed by changing existing rock by the application of heat and pressure
C) are formed by depositing loose material into layers
D) form by chemically precipitating from solutions
Correct Answer:
Verified
Q7: Important volatiles in magmas include
A) mafic minerals,such
Q7: The formation of magma within Earth is
Q10: When magma crystallizes,_ are formed.
A)intrusive igneous rocks
B)extrusive
Q10: In general,when rock is partially melted,the chemistry
Q12: If the volatile content of magma is
Q13: A majority of the melts in the
Q14: Given the solidus and liquidus curves below,which
Q15: Very early in Earth's history (during the
Q16: Viscosity does NOT depend on
A) temperature.
B) volatile
Q19: Most commonly,felsic igneous rocks
A) contain more iron
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