The nature of the stratigraphical record

by D. V. Ager

In the third edition of his thought-provoking book, Professor Derek Ager takes a new look at the nature of the stratigraphical record, emphasizing the remarkable persistence of certain facies, the importance of the huge gaps in the record, and the catastrophic or episodic nature of our record of Earth history. By abandoning the concepts so often found in textbooks, he demonstrates several generalities about the stratigraphical column that will make fascinating reading for all those interested in the Earth's geological history.