Documents GeoDinamo- Glatzmaier

Gary A Glatzmaier The Geodynamo Paleomagnetic records indicate that the geomagnetic field has existed for at least three billion years. However, based on the size and electrical…

Documents Solidified iron 20004000 km6000800010,00012,000 solid mantle Mg(Fe) silicates crust Rapidly...

Slide 1 solidified iron 20004000 km6000800010,00012,000 solid mantle Mg(Fe) silicates crust Rapidly convecting, electrically conducting, fluid iron The outer core: the source…

Documents Reversals of the Geomagnetic Field Secular variations- historic to modern changes in the field...

Slide 1 Reversals of the Geomagnetic Field Secular variations- historic to modern changes in the field Archaeomagnetism: changes during the Holocene Reversals of the dipole…