Which of the following statements is true?
A)Gabbro has a higher melting temperature than granite.
B)Gabbro has a higher potassium content than granite.
C)Gabbro has a higher silica content than granite.
D)Gabbro has a higher viscosity than granite.

Question

Quizplus · Accepted Answer

Gabbro has a higher melting temperature than granite because it is a mafic rock, which means it is richer in magnesium and iron compared to granite, which is a felsic rock higher in silica. This composition difference leads to gabbro having a higher melting temperature.

Which of the Following Statements Is True