Chemical signatures of Sierran granitoids indicate a crystal fractionation differentiation model for the origin of the batholith. How does crystal fractionation make the peridotite partial melt mafic...

Chemical signatures of Sierran granitoids indicate a crystal fractionation differentiation model for the origin of the batholith. How does crystal fractionation make the peridotite partial melt mafic magma less mafic? A) removal of mafic minerals by crystal settling drives the residual magma chemistry to be less mafic, more felsic B) addition of felsic minerals to the mafic magma causes the magma to become less mafic C) addition of water makes the mantle melts less mafic