Post by Dave on Jul 14, 2012 3:12:50 GMT -5
Growth of Earth's core may hint at magnetic reversal
New Scientist, 15:29 13 July 2012 by Will Ferguson
"Lopsided growth of the Earth's core could explain why its magnetic field reverses direction every few thousand years. If it happened now, we would be exposed to solar winds capable of knocking out global communications and power grids.
One side of Earth's solid inner core grows slightly while the other half melts. Peter Olson and Renaud Deguen of Johns Hopkins University in Baltimore, Maryland, used numerical modelling to establish that the axis of Earth's magnetic field lies in the growing hemisphere – a finding that suggests shifts in the field are connected to growth of the inner core."
Look at that liquids and semi-solids / solids grow - expand.
If the core expands - what must that do to the mantel or surface crust? Earthquake? Volcanic eruption? Mid-oceanic ridge eruption?
Even now, toward the end of the "Whole Earth Decompression Dynamic" expansion - the mechanism is the same. The process is the same. AND the consequence is the same.
New Scientist, 15:29 13 July 2012 by Will Ferguson
"Lopsided growth of the Earth's core could explain why its magnetic field reverses direction every few thousand years. If it happened now, we would be exposed to solar winds capable of knocking out global communications and power grids.
One side of Earth's solid inner core grows slightly while the other half melts. Peter Olson and Renaud Deguen of Johns Hopkins University in Baltimore, Maryland, used numerical modelling to establish that the axis of Earth's magnetic field lies in the growing hemisphere – a finding that suggests shifts in the field are connected to growth of the inner core."
Look at that liquids and semi-solids / solids grow - expand.
If the core expands - what must that do to the mantel or surface crust? Earthquake? Volcanic eruption? Mid-oceanic ridge eruption?
Even now, toward the end of the "Whole Earth Decompression Dynamic" expansion - the mechanism is the same. The process is the same. AND the consequence is the same.