Mantle cooling regulation and ancient geomagnetic field
Рубрики: ОРИГИНАЛЬНЫЕ СТАТЬИ
Авторы:
1.
Институт физики Земли им. О.Ю. Шмидта РАН
Институт земного магнетизма, ионосферы и распространения радиоволн им. Н. В. Пушкова Российской академии наук
Россия
Институт земного магнетизма, ионосферы и распространения радиоволн им. Н. В. Пушкова Российской академии наук
Россия
Тип:
Статья
Страницы:
с 1
по 6
Статус:
Опубликован
Получено:
16.05.2022
Одобрено:
18.05.2022
Опубликовано:
18.05.2022
Язык материала:
русский
Ключевые слова:
liquid core, thermal and compositional convection, geodynamo
Финансирование:
State Assignment of the Schmidt Institute of Physics of the Earth of Russian Academy of Sciences
Аннотация (русский):
The joined core and mantle thermal evolution model of the Earth for 6 Gy is considered. The model describes evolution of the heat fluxes, temperature distribution in the Earth, energy available for the magnetic field generation. Using Monte Carlo method we find parameters of the model which produce realistic inner core size, heat flux at the surface of the planet, viscosity and temperature of the mantle. The quite large heat flux at the core-mantle boundary and corresponding energy source for geodynamo after accretion help to explain existence of the ancient geomagnetic field before the inner core origin.
The joined core and mantle thermal evolution model of the Earth for 6 Gy is considered. The model describes evolution of the heat fluxes, temperature distribution in the Earth, energy available for the magnetic field generation. Using Monte Carlo method we find parameters of the model which produce realistic inner core size, heat flux at the surface of the planet, viscosity and temperature of the mantle. The quite large heat flux at the core-mantle boundary and corresponding energy source for geodynamo after accretion help to explain existence of the ancient geomagnetic field before the inner core origin.
Ключевые слова:
liquid core, thermal and compositional convection, geodynamo
liquid core, thermal and compositional convection, geodynamo
