In the late 1960's a group of young earth scientists advanced a bold new theory of the earth which has since revolutionized their field and given us a new story of the earth's history. In this thorough and remarkable book, the result of research and filming in sixteen countries in preparation for a ninety-minute television special, Nigel Calder tells the story, based on the theory of plate tectonics. Color and b&w illustrations, as well as an index.

(Key Words: Nigel Calder, Geology, plate tectonics, earthquakes, volcanoes, mountain ranges, science).