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.

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References in periodicals archive ?

All these suggestions are compliant with previous conclusions from the X-ray luminescence of feldspar on common source of the Novosibirsk-Ob Area granitoids formation (Boroznovskaya et al., 2012), which allows us to consider the KTFB granitoid magmatism as the result of natural magmatic differentiation of the parental magma, providing a viable possibility to implement the quartz emission spectra in solving the problems of typification of granitoid massifs and other geological formations.

LUMINESCENCE OF ROCK-FORMING QUARTZ OF THE GRANITOIDS FROM THE KOLYVAN-TOMSK FOLDED BELT IN RELATION TO FACIES FEATURES OF MASSIF FORMATION

This evolution reflects the progressive increase in trace element contents (200-1,200 ppm Sn, 50-150 ppm Nb, 30-300 ppm Ta, 20-70 ppm W, 200-600 ppm Cs, 25-500 ppm Be, and 700-2,800 ppm Li) in whole-rock geochemistry that has been interpreted as a magmatic differentiation trend upward [12, 13].

Geochemical Signature of Magmatic-Hydrothermal Fluids Exsolved from the Beauvoir Rare-Metal Granite (Massif Central, France): Insights from LA-ICPMS Analysis of Primary Fluid Inclusions

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.

Highly Siderophile and Strongly Chalcophile Elements in High-Temperature Geochemistry and Cosmochemistry

This was usually in close association with mafic and high magnesium rocks, suggesting magmatic differentiation of the ultramafic bodies.

-Heron's Nova style nickel-copper sulphide targets

and Barsczus, H.G., 2000, Contrasting behavior of noble-metal elements during magmatic differentiation in basalts from the Cook Islands, Polynesia: Geology, v.

Igneous rock associations 4. Oceanic island volcanism I mineralogy and petrology

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.

Li isotopic composition of foraminiferal tests: can we measure it using a quadrupole ICP-MS? (Geological Association of Canada 2000 Annual Technical Meeting Newfoundland Section)

Silicate chemistry - A structural approach is taken to the chemical and physical characteristics of silicates and their role in shaping the environment through geologic processes: magmatic differentiation, weathering, sedimentation.

A degree programme in geochemistry

Thus, the fluid formed by magmatic differentiation of partial melting of the crust is enriched in C[O.sub.2] and F.

Fluid Inclusions and C-H-O-S-Pb Isotope Systematics of the Changfagou Deposit, Jilin Province, Northeast China

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.we can thus, For the first time, Interpret the available data in a physically consistent manner.