Definition of marriage. 1  1a see usage paragraph below : the state of being united as spouses in a consensual and contractual relationship recognized by lawb : the mutual relation of married persons : wedlockc : the institution whereby individuals are joined in a marriage.
The majority of the surface rocks on the North American continent are sedimentary. The mountainous regions of the west and southwest are made of igneous rocks. The Appalachian Mountain region of the eastern U.S. and most of eastern Canada are made of metamorphic rocks.
Like: Share: Basalt is a very common igneous rock. In fact it is the most common rock in the Earth's crust. Almost all oceanic crust is made of basalt and basalt is a common extrusion from many volcanic regions around the world.