books.google.ca - This volume presents an introduction to the field of plate tectonics. Plate tectonics is a scientific theory which describes the large scale motions of Earth's rigid outermost shell. The authors begin with an historical introduction concerning early ideas of continental drift and Earth dynamics that...http://books.google.ca/books/about/Plate_Tectonics.html?id=vx1oiTMOTRcC&utm_source=gb-gplus-sharePlate Tectonics
