If an intermediate igneous rock undergoes partial melting, a melt will form that
ID: 113292 • Letter: I
Question
If an intermediate igneous rock undergoes partial melting, a melt will form that is enriched in _________?
the chemical composition of those minerals with the lowest melting temperatures
the chemical composition of those minerals with the highest melting temperatures
iron and magnesium
both B and C
None of the above
a)the chemical composition of those minerals with the lowest melting temperatures
b)the chemical composition of those minerals with the highest melting temperatures
c)iron and magnesium
d)both B and C
e)None of the above
Explanation / Answer
When igneous rock starts melting different minerals magma is formed and different compositions evolve at differerent temperatures. Compositions are formed at lowest melting temperature as well as highest melting temperature in the process of partial melting. Hence the answer is d.