The New Role of The Solid Core In The Planet Magnetic Field Formation
Abstract
The role of solid part of the Earth's core in the generation, stabilization and maintenance of the Earth's magnetic field has not been sufficiently studied until now. In the present report we consider the possibility of the formation and maintenance of the Earth's magnetic field dipole component in the solid part of the Earth's core. It is shown that under the conditions of the existence of this part of the core, it can be in the vicinity of the Curie point or even below the latter. At the same time, it is shown that if the solid core temperature is somewhat higher than the Curie temperature, then the effective magnetic field generation connected with magnetic moment fluctuations near the transition point is possible. The estimates of the effective magnetic field obtained in the present work well agree with the observed values of the Earth's magnetic field. The model suggested in the present work was applied to the description of magnetic fields of the Earth's group planets and Jupiter's satellites.
- Publication:
-
EGS General Assembly Conference Abstracts
- Pub Date:
- 2002
- Bibcode:
- 2002EGSGA..27..353G