Very few people thought that the world consists only of two components, a stone and water. It only seems that around us there is a lot of earth and sand. The fact that we consider sand - for hundred percent the destroyed stone breeds, and the earth, except the fossils mixed with sand contains high percent of sedimentary rocks.
Stone world
The young, still developing world, always consists of a stone, water and fire. Quite so also the planet looked one billion years ago. The sky tightened thunderclouds in which the flame of the throwing-up volcanoes, and storming, eternally stormy sea was reflected.
In mad chaos of lightnings, peals of a thunder and a roar of volcanoes the earth arose. It today it lovely, cozy and green, and then everything looked absolutely differently. The land which is nervously shivering in continuous earthquakes extorted from itself what will become subsequently basalt and gneiss.
Mountains, crawling at each other as if huge monsters, gnawed and crippled each other, dropping enormous blocks of granite and a gabbro. Only eventually the earth gradually got rid of labor and calmed down, from time to time throwing out in gradually the cleaned sky columns of volcanic eruptions and shuddering a stony surface, crumbling and milling separate blocks and rocks.
World of water
The climate became gradually softer and softer. Warm waters filled lowlands and hollows, in them such strange life arose. Exotic crustaceans and mollusks extend in the warm seas surprisingly plentifully. Dying off, they literally covered a bottom with the sinks and armors. There were mollusks in warm saltish water more and more, the layer of their remains at the bottom, became thicker and thicker more and more densely and more firmly. Collapsing under body weight, armors mixed up, kind of grew together with each other, turning into firm boulders.
The sliding stone does not acquire a moss
Those stones that meet in everyday life, in most cases the remains or the destroyed sedimentary rocks that makes about 75% of all quantity of stones, or metamorphic rocks about 18-20%, that is the breeds which changed in the earth under the influence of pressure and temperature. All other is breeds magmatic, such as granites and basalts. Initial breeds from planet depths. All these stones boulders found the present look mainly as a result of aeration on the land and an okatyvaniye in water of the rivers and seas. Only an insignificant part of stones-ostantsev on plains kept if not initial then rather ancient shape, but also aeration concerned them, in particular it is noticeable in case a boulder or ostanets is difficult from sedimentary rocks which rather easily collapse as a result of the atmospheric phenomena. It is possible to give characteristic figures of aeration as an example, as the valley of ghosts on the Southern Demerdzhi in the Crimean Mountains.