26 Jul 2008
Note:This is my theory not yet peer reviewed.
When the earth was formed, the water molecules from the atmosphere started condensing and started falling on the molten crust of the earth and started cooling it. This resulted in the solidification of the outer crust of the earth. But as the water started accumulating the planetwide ocean that covered the entire planet without any land mass showing above the ocean, the weight of the planetwide ocean started squeezing the crust with its enormous weight. This resulted in the crust being squished out and the weakest part of the planetwide crust started coming out of the sea bed to form the first landmass of the earth that was above water. This process continued until the weight of the land mass jutting above the sea equalled the pressure of the weight of the planetwide ocean.
Once this pangean supercontinent was formed, the centripetal forces of earth's rotation started distributing it around the earth so that the centre of gravity is shifted back to the centre of the earth. This resulted in the breakup of the super continent into the continents we see today.
My theory is that the weight of the oceans is increasing and the further squeezing of the earth crust contributes to the formation of earthquakes (maybe it even causes volcanoes to erupt). So if we could somehow map the pressure of the oceans' weights on earth's crust we should be able to predict the occurences of earthquakes. One possibility is to map the epicenters of past earthquakes and magnitutes and form a pressure graph to see if the epicenters are the points at which pressures become equal, thus releasing the pressure potential as the kinetic energy of earthquakes.
One way to predict earthquakes would be to calculate by how much the volume and/or weight of the oceans increases in a period of time thus calculating the increase in pressures on different points of the crust due to the difference of volume of water nearby. By plotting this increase we may try to predict where the pressures are building up and by how much and where the pressures will be released and thus calcuate the epicenters of future earthquakes.
As for the formation of the pangean supercontinent. The rotation of the earth exerts a centripetal force on the equator of rotation thus causing oblation of the sphere, this results in the curst at the equator being the weakest. So it will be the equatorial crust that would have been squeezed out by the weight of the planetwide ocean. So the pangean supercontinent would have been formed near the equator and not near the poles. This is fortunate as, if the supercontinent had formed at the poles the centripetal forces acting on the supercontinent due to rotation of earth may have been too weak to break up the super continent.
This assumption that it was the oceans that created the continents precludes the theory that the pangean continent is formed cyclicaly, because once the centripetal forces splits up the continent too much energy will be required to put the pangean super continent back together again, so it may be a one way process. That is the super continent will be formed once and split up and equi distributed around the sphere. Once equilibrium is achieved the continents will stop moving or slow down drastically. Or the centripetal forces will progress till all the continents are further broken down until the entire planet is covered with islands that are equi-distributed around the sphere.
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