Here is a completely new version of the leading book on the geology of the Grand Canyon. Co-published with the Museum of Northern Arizona Press, the book incorporates the most recent discoveries and interpretations of the origin and history of the canyon. It offers a splendid, colorful survey of one of nature's most magnificent creations, while serving as a unique introduction to the methods and discoveries of geological science. The contributing authors are acknowledged experts in the fields of stratigraphy, paleontology, structural geology, geomorphology, volcanism, and seismology. Their discussions of individual rock formations offer new information on the geographic distribution of outcrops in the canyon, their lithology and stratigraphy, paleontology, age and correlation with other rock units worldwide, and depositional history. A new chapter explores the hydrology and geomorphology of the Colorado River. Fully illustrated with photographs and line drawings, this book will attract the attention of geologists and geology students, as well as general readers interested in acquiring an understanding of the geological history of this great natural wonder.

This second edition of the leading book on Grand Canyon geology contains the most recent discoveries and interpretations of the origin and history of the canyon. It includes two entirely new chapters: one on debris flow in the Canyon and one on the impact of water flow releases from the Glen

Canyon Dam. All chapters have been updated where necessary and all photographs have been replaced or re-screened for better resolution. Written by acknowledged experts in stratigraphy, paleontology, structural geology, geomorphology, volcanism and seismology, this book offers a wealth of information

for geologists and general readers interested in acquiring an understanding of the geological history of this great natural wonder.

This second edition of the leading book on Grand Canyon geology contains the most recent discoveries and interpretations of the origin and history of the canyon. It includes two entirely new chapters: one on debris flow in the Canyon and one on the impact of water flow releases from the Glen Canyon Dam. All chapters have been updated where necessary and all photographs have been replaced or re-screened for better resolution. Written by acknowledged experts in stratigraphy, paleontology, structural geology, geomorphology, volcanism and seismology, this book offers a wealth of information for geologists and general readers interested in acquiring an understanding of the geological history of this great natural wonder.

Stanley S. Beus is Regent Professor of Geology, Northern Arizona University. Michael Morales is Curator of Geology, Museum of Northern Arizona.

1. Introducing the Grand Canyon, Stanley S. Beus and Michael Morales

2. Precambrian Crystalline Core, R.S. Babcock

3. Grand Canyon Supergroup: Unkar Group, J.D. Hendricks and G.M. Stevenson

4. Grand Canyon Supergroup: Nankoweap Formation, Chuar Group, and Sixtymile Formation, Trevor David Ford

5. Geologic Structure of the Grand Canyon Supergroup, James W. Sears

6. Tonto Group, Larry T. Middleton and David K. Elliott

7. Temple Butte Formation, Stanley S. Beus

8. Redwall Limestone and Surprise Canyon Formation, Stanley S. Beus

9. Supai Group and Hermit Formation, Ronald C. Blakey

10. Coconino Sandstone, Larry T. Middleton, David K. Elliott, and Michael Morales

11. Toroweap Formation, Christine E. Turner

12. Kaibab Formation, Ralph Lee Hopkins

13. Mesozoic and Cenozoic Strata of the Colorado Plateau Near the Grand Canyon, Michael Morales

14. Phanerozoic Structural Geology of the Grand Canyon, Peter W. Huntoon

15. History of the Grand Canyon and of the Colorado River in Arizona, Ivo Lucchitta

16. Hydraulics and Geomorphology of the Colorado River in the Grand Canyon, Susan Werner Keiffer

17. Late Cenozoic Lava Dams in the Western Grand Canyon, W.K. Hamblin

18. Earthquakes and Seismicity of the Grand Canyon Region, David S. Brumbaugh

19. Rock Movement and Mass Wastage in the Grand Canyon, Richard Hereford and Peter W. Huntoon

20. Side Canyons of the Colorado River, Grand Canyon, Andre R. Potochnik and Stephen J. Reynolds