De geschiedenis der poolschilden – continenten op drift

Because the earth is under the influence of the sun and spins around, the continents deplace towards the equator. During this process they push the Sima downward and glide into their self-made troughs; this causes transgressions. Afterwards the trough-sediments rise up and form mountain-chains. Simultaneously a set of vectors causes the poles to shift and the globe is deformed. The poles fly from or seek the centre of gravity of the continental masses. As soon as the position of the equator has chaiged sufficiently the direction of movements of the continents is altered, and the continents seek the new equator. Then mountain-chains arise in areas where they didnot arise during the previous phase of movement. At the same time the ocean floor is swept clean. Shortly before the beginning of the Paleozoic the South Pole continental shield tore up and hinged towards the equator. As a consequence the North Pole began to move from the Northern Pacific towards its present position. At the end of the Paleozoic the northern continent tore up as well and it is still moving towards the equator in a rotating movement. As a result the North pole will wander back towards the surroundings of Hawaii. Thus, the polar movement resembles the precession of the earth axis. Nevertheless, its movement is controlled by “accident” i.c. by the place where the continent breaks up. Apparently the earth cooled slowly down after its hot origin, thus causing polymixed liquid to segregate. Sial and sima separated. Like nowadays the temperature at the poles was lower than at the equator. That is why the solidification started at the poles and two continents came into existance. Undoubtedly the breaking of the continents influenced the evolution of life on earth, as it permitted cold polar water to enter the equatorial Tethys-ocean. Most probably continental drift is one of the main factors in the course of evolution.