The author's reexamination of Earth's impact-cratering record reveals the persistence over time of at least three spatially invariant clusters of craters, clusters that are locked in both latitude and longitude to the position and motion of Earth's rotational axis and Equator.
`I cannot exaggerate the importance of this book to the sciences. The central thessis is that the cratering pattern on Earth is not random, but is instead aligned along swaths that intersect at approximately constant locations over much of Earth's history...It is a new view of Earth based on a pioneering, chaos-theory analysis of the most important earth processes and records.' Digby J McLaren, Former President of the Royal Society of Canada.