Geology of Oregon

"Geology of Oregon" is required reading for geology students living in the Pacific North-west (U.S.). Oregon contains a huge variety of fascinating features and processes which the Orrs display in the finest photography. I bought the 4th edition and I am impressed with the clarity in the black and white photographs. My professor has the 5th edition and his book has color images.

The book reflects the Orrs' respective roles in geology and paleontology at the University of Oregon that began back in 1967. This is a subject they obviously know well but, more importantly, have made clear and interesting. Brisk text and outstanding diagrams, photos, maps and drawings provide a 'visual' understanding of geologic processes in a familiar context. The reader gets a look at how accretion, subduction, extension, vulcanism, etc., shaped Oregon. The 'suggested reading' at the end of the chapters and the bibliography in the back are invaluable to anyone wanting to know more.