(Redirected from List of longest bridges in the world) This is a list of the world's longest bridges more than three kilometres long sorted by their full length above land or water. Span refers to the longest spans without any ground support. Note: There is no standard way to measure the total length of a bridge.
But the smaller crystals mean that the rest of the cooling happened very quickly. If a rock has both crystal types, it means that the mamga spent some time in a magma chamber, where the large crystals grew, then was violently erupted onto the surface, where the small crystals were formed.
Cooling and Crystallization Igneous rocks are the result of cooling and crystallizing magma. Igneous crystals are formed when freely moving atoms in melted rock become arranged in orderly patterns as they cool. As melted rock cools, the heat energy that allows atoms to move past one another decreases, and the natural attraction between atoms causes them to stick together with similar atoms in a crystalline structure.