The purpose of the series is to compile and pass on the accumulated knowledge of regional geology that is being lost as generalists with field experience are replaced by specialists with computers. It is designed to appeal to both academic and petroleum geologists. In this third and final part of Volume One, geologists discuss extensional basins including rifts, passive margins, and inverted extensional basins. The chapters have a broadly similar layout, and where appropriate include a section on the petroleum system. They cover non-volcanic and transform passive margins, cratonic basins on pre-Cambrian and Paleozoic basements, and world maps. Annotation ©2012 Book News, Inc., Portland, OR (booknews.com).