Calculate the degree(s) of freedom of the assemblage orthopyroxene + c – McqOptions

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1.	Calculate the degree(s) of freedom of the assemblage orthopyroxene + clinopyroxene + plagioclase + hornblende + quartz + fluid in the chemical system CaO–FeO–MgO–Al2O3–SiO2–H2O with pressure and temperature as physical variables.
A.	0
B.	1
C.	2
D.	3
Answer» D. 3

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