Physics
Scientific paper
May 2003
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003aps..nws.d1018z&link_type=abstract
American Physical Soceity, Fifth Annual Meeting of the Northwest Section Meeting, May 30-31, 2003, Reed college, Portland, Orego
Physics
Scientific paper
Based on radiation mechanics, the history of Earth can be interpreted by core-mantle mill theory. The theory confesses the inner core as a ferromagnet. The ferromagnetism of inner core is supported by observed anisotropic property of inner core in transmitting seismic waves. Rotation of Earth originates from the magnetic interaction between Earth and Jovian planets. Since the torque caused by the magnetic interaction between Earth and Jovian planets only acts on the iron core of Earth, the core behaves as a rotating engine, tending to change both the rate and axis of Earth's rotation, while the mantle is the resistant to any alternation of rotation. The interplay between the two leads to formations of fluid outer core, basalt magmas, oceanic crust, and differential rotation between the inner core and mantle. Rock materials at the core-mantle boundary are ground into basalt magma due to the differential rotation between the inner core and mantle. Mid-ocean ridge systems are interpreted as the huge dike systems rooted in some principal magma chambers in the core-mantle boundary layer. The anisotropy of background radiation in the polar directions determines the patterns of mid-ocean ridge systems on the Earth's surface and the global tectonic movement of the Earth's crust. The theory also explains the causes of geomagnetic reversals, mass extinctions and global climate changes. The history of Earth is featured by three stages: without oceanic crust (before 2.7Ga), creation of oceanic crust (2.7-2.25Ga) and growth of continents (after 2.25Ga).
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