magmatic differentiation

magmatic differentiation

[mag′mad·ik ‚dif·ə‚ren·chē′ā·shən]
(petrology)
The process by which the different types of igneous rocks are derived from a single parent magma.
The process by which ores are formed by solidification from magma. Also known as magmatic segregation.
References in periodicals archive ?
Unravel how arcs are built on geological timescales, What the role and the rates of magmatic differentiation processes are in this, And how this may have formed continental crust on earth.
Among their topics are experimental results on fractionation of the highly siderophile elements at variable pressures and temperatures during planetary and magmatic differentiation, nucleosynthetic isotope variations of siderophile and chalcophile elements in the solar system, the distribution and processing of highly siderophile elements in cratonic mantle lithosphere, chalcophile and siderophile elements in mantle rocks: trace elements controlled by trace minerals, petrogenesis of the platinum-group minerals, and highly siderophile and strongly chalcophile elements in magmatic ore deposits.
This was usually in close association with mafic and high magnesium rocks, suggesting magmatic differentiation of the ultramafic bodies.
2000, Contrasting behavior of noble-metal elements during magmatic differentiation in basalts from the Cook Islands, Polynesia: Geology, v.
Isotopic composition of lithium is potentially a powerful tracer of geochemical processes such as high-temperature magmatic differentiation, alteration of oceanic crust or fluidrock interactions.