(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.
Kinds of Igneous Rock. Igneous Rocks are formed by crystallization from a liquid, or magma. They include two types. 1  Volcanic or extrusive igneous rocks wherein the magma cools and crystallizes on the surface of the Earth. 2  Intrusive or plutonic igneous rocks wherein the magma crystallizes at depth in the Earth.f it crystallizes before it reaches the surface it will form an igneous rock at depth called a plutonic or intrusive igneous rock. Because cooling of the magma takes place at a different rate, the crystals that form and their interrelationship (texture) exhibit different properties.