COMAGMAT 5

Calculations of equilibrium and fractional crystallization of S-saturated and S-undersaturated magmas, including changes in the Fe/Ni ratio in silicate melts, femic minerals, and coexisting sulfides, as well as sulfide-silicate (±Fe-Ti oxides) proportions for multiple-saturated mineral assemblages.

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COMAGMAT 5

Calculations of equilibrium and fractional crystallization of S-saturated and S-undersaturated magmas, including changes in the Fe/Ni ratio in silicate melts, femic minerals, and coexisting sulfides, as well as sulfide-silicate (±Fe-Ti oxides) proportions for multiple-saturated mineral assemblages.

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COMAGMAT 3

Calculations of equilibrium and fractional crystallization for dry and hydrous natural magmas in the range of pressures from 1 atm to 10-12 kbar and including both open (12 oxygen buffers) and closed system fractionation with respect to oxygen. Simulating formation of layered intrusions.

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Features

5.x

3.x

Calculations of equilibrium and fractional crystallization of S-saturated and S-undersaturated magmas
Improved precision of calculations at low contents of melt components
Variable models for melt oxidation state (Fe2+/Fe3+ ratio)
Calculations of trace elements partition coefficients
Modeling crystallization at atmospheric pressure
Modeling crystallization at elevated pressures (up to 10-12 kbar)
Modeling crystallization in hydrous systems
Simulation of open (with respect to oxygen) systems, using fO2-buffers
Simulation of closed to oxygen systems at given Fe2+/Fe3+ ratio
Simulating formation of layered intrusions
Correction for mineral-melt liquidus temperatures

COMAGMAT 5 New

The basic core of the COMAGMAT-5 program includes the algorithm that has been used in previous versions of the COMAGMAT model (ver. 3.0-3.5) designed to simulate mafic magma crystallization processes, but limited to atmospheric pressure and include numerical models for simulating crystallization of S-saturated and S-undersaturated magmas.

Sulfide version of the COMAGMAT program was developed as a part of a cooperative AMIRA project “Ni-PGE potential of mafic and ultramafic magmas – a combined melt inclusion and numerical modelling approach” (P962) and Russian Science Foundation project (No 16-17-10129).

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COMAGMAT 5.2.2 »

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COMAGMAT 3

The COMAGMAT model is a programs developed to calculate phase equilibria for dry and hydrous natural magmas crystallizing in the range of pressures from 1 atm to 10-12 kbar and including both open (12 oxygen buffers) and closed system fractionation with respect to oxygen. The modeling process may be calculated for systems ranging from basalts to dacites, with modeled major elements including Si - Ti - Al - Fe - Mg - Ca - Na -K and P. Moreover, COMAGMAT allows the user to simulate behaviour of 20 trace elements, including Mn, Ni, Co, Cr, V, Sc, Sr, Ba, Rb, Cu, and REE. The modeled minerals include olivine (Fo-Fa solution), plagioclase (An-Ab), 3 pyroxenes (augite, pigeonite, and orthopyroxene: En-Fs-Wo solutions plus Al and Ti), ilmenite (Ilm-Hem), and magnetite (Mt-Ulv).

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COMAGMAT 3.73 »

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Applications