The sand and the neighborhood structures of the world coasts.

The sand and the neighborhood structures of the world coasts.              der="0" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi68Y8PShPNscCM6sGBG2p7feI_O4xxIsDMYZrg8QPhddn1cy8FbW90kACFvg9k1SAjk7qV1kXQckShq_8UrNyRmVhSus86jfsi8dTageOpEduA4cJxuzZbmmp0lxYb4B4zMM0bd3eHtEw/s320/Picture+166.jpg" width="320" /> Sand - sedimentary rock composed of fragmental particles. Particle diameter ranges from 0.063 mm to 2 mm. Sand is almost or completely nesucementuota rock t. y. loose, heterogeneous. Homogeneous various cements cemented rock called sandstone. Sand according to their origin may be fliuvioglacijalinis, marine, alluvial (river), aeolian. Sand mineral composition quite different. It can be concluded from the practice of one mineral (quartz, etc.)., As well as fragments of various minerals. Mineral composition of sand eroded from the physical rock mineral composition. If the eroded marine sediments and sand accumulates in warm sea - the sand is carbonate composition - Limestone sand, if things are going volcanic island of the coast - volcanic sand. Great things are going in the desert of sand from the sand dunes of the high.             If you have time, look at what buildings and sculptures of people relaxing on building castles in Europe to the Baltic Sea to the Curonian Spit, red in the sea in Hurghada in Egypt and the Atlantic Ocean archipelago of the Canaries Gran Canaria