Genesis

The Earth was formed it does approximately 4.650 million years, together with the whole Solar System. Though the most ancient stones of the Earth do not have any more than 4.000 million years, the meteorites, which correspond geologically with the nucleus of the Earth, give dates of approximately 4.500 million years, and the crystallization of the nucleus and of the precursor bodies of the meteorites, it is believed that it happened at the same time, approximately 150 million years after the Earth and the Solar System be forming.

After becoming condensed from the cosmic dust and the gas by means of the gravitational attraction, the Earth was almost homogeneous and cold enough. But the continued contraction of materials and the radioactivity of some of the heaviest elements did that was warming up.

Later, it began to fuse under the influence of the gravity, producing the differentiation between the bark, the mantle and the nucleus, with the most light silicates moving up to form the bark and the mantle and the heaviest elements, especially the iron and the nickel, falling down towards the center of the Earth to form the nucleus.

At the same time, the eruption of the numerous volcanoes, it provoked the steam exit and volatile and light gases. Some of them were caught by the gravity of the Earth and they formed the primitive atmosphere, whereas the water steam condensed formed the first oceans.