metamorphic differentiation

metamorphic differentiation

[′med·ə‚mōr·fik ‚dif·ə‚ren·chē′ā·shen]
(petrology)
Processes by which different mineral assemblages develop in some sequence from an initially uniform parent rock.
References in periodicals archive ?
The origin of migmatites is the subject of many studies discussing different migmatite-forming processes: a) Injection of externally derived granitic melts (Sederholm 1913, Zoubek 1927), b) metasomatism (Misch 1968), c) metamorphic differentiation (Robin 1979, Ashworth and McLellan 1985), and partial melting of the host rocks (Mehnert 1968, Johannes 1988, Kriegsman 2001).