meteor crater



  • Any crater formed on the Earth’s surface by meteorite impact – especially Arizona meteor Crater, the first to be recognised. The two main types are impact craters, formed when the meteorite simply digs a hole in the Earth’s crust, of which the Arizona crater is an example, and larger types called explosion craters, rarely accompanied by meteorite fragments since they are formed by the impact of large meteorites which are totally vaporized in the process of forming the crater. Several large craters on the Canadian shield, like Lake Manicougan, are examples.