In general,if a body of igneous (source)rock is subjected to partial melting,the magma that is produced is expected to be
A) identical in chemical composition to the source rock.
B) more mafic than the source rock.
C) more felsic than the source rock.
D) The melt composition is not predictable.

Question

Quizplus · Accepted Answer

When partial melting occurs, the melt that is produced typically has a higher silica content (making it more felsic) than the source rock. This is because minerals with a lower melting point, like quartz and feldspar, are more common in felsic rocks and will melt before the more mafic minerals. As a result, the melt will have a higher concentration of these minerals and a higher silica content overall.

In General,if a Body of Igneous (Source)rock Is Subjected to Partial