Инд. авторы:	Kirdyashkin A.A., Kirdyashkin A.G.
Заглавие:	Interaction of a thermochemical plume with free convection mantle flows and its influence on mantle melting and recrystallization
Библ. ссылка:	Kirdyashkin A.A., Kirdyashkin A.G. Interaction of a thermochemical plume with free convection mantle flows and its influence on mantle melting and recrystallization // Russian Geology and Geophysics. - 2013. - Vol.54. - Iss. 5. - P.544-554. - ISSN 1068-7971. - EISSN 1878-030X.
Внешние системы:	DOI: 10.1016/j.rgg.2013.04.006; SCOPUS: 2-s2.0-84876793355; WoS: 000319177500006;
Реферат:	eng: We present a thermophysical model for interaction between the conduit of a thermochemical plume and horizontal free convection flows in the mantle: The mantle flow incident on the plume conduit melts at the conduit boundary (front part) and crystallizes at its back. Geological data on the intensity of plume magmatism over the last 150 Myr are used to estimate the total thermal power of mantle plumes. A possible scenario for plume-related mantle recrystallization is proposed. Over the lifespan of a thermochemical plume, mantle melts and recrystallizes owing to the motion of the plume source and interaction between the plume conduit and horizontal free convection flows. The plume conduits can melt and recrystallize the entire mantle over a certain period of time. The model for the interaction of drifting plume conduits with mantle flows and the estimated total thermal power of mantle plumes are used to estimate the duration of plume-related melting and recrystallization of the entire mantle. The influence of mantle plumes on the convective structure of the mantle through melting is judged from the model for plume interaction with horizontal mantle flows. © 2013.
Ключевые слова:	recrystallization; melting; mantle source; mantle plume; mantle convection; magmatism; thermochemistry; Thermal power; Recrystallization; Plume conduit; Layering; Horizontal mantle flows; Thermochemical plume;
Издано:	2013
Физ. характеристика:	с.544-554