Article
Article name	Heat and mass transfer and crystallization in the mushroom head of a thermochemical plume
Authors	Kirdyashkin A.. , Kirdyashkin A.. , Gladkov I.. , Distanov V.. ,
Bibliographic description
Category	Earth science
DOI
DOI	10.21209/2227-9245-2018-24-2-4-13
Article type	Scientific
Annotation	The main research task is to analyze the heat and mass transfer of melt resulting from melting of the crustal layer for which the bulk composition is well estimated. During melting the heat source is the thermochemical mantle plume. On the basis of laboratory and theoretical modeling results, we present the thermal and hydrodynamic structure of the thermochemical plume with the mushroom-shaped head. Relying on the model of the thermal and hydrodynamic structure of the plume head we analyze the possible compositional change of melt by two stages: after settling of refractory mineral particles on the base of the plume head; after settling of plagioclase in the melt subsequent to the first stage. The results of composition calculation are presented for melt of the plume head having a temperature of Tm = 1410 °C and Tm = 1380 °C. The normative composition of the residual melt resulting from crystallization differentiation approaches that of normal granites. Throughout the plume lifetime melt intrudes into the block above the plume head under the effect of the superlithostatic pressure
Key words	Modeling; plume head; free-convection flows; thermal power; melt; crystallization differentiation; refractory minerals; plagioclase feldspars; normative composition; batholiths
Article information	Kirdyashkin A., Kirdyashkin A., Gladkov I., Distan V. Heat and mass transfer and crystallization in the mushroom head of a thermochemical plume // Transbaikal Ctate University Journal, 2018, vol. 24, no. 2, pp. 4-13
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Full article	Heat and mass transfer and crystallization in the mushroom head of a thermochemical plume