Geology of Grand Canyon, Northern Arizona (With Colorado River Guides): Lee Ferry to Pierce Ferry, Arizona

Description

About The ProductPublished by the American Geophysical Union as part of the Field Trip Guidebooks Series. The scheduling of the International Geological Congress field trips T-115 and T-315 through the Grand Canyon during the summer of 1989 has provided an unparalleled opportunity not only to prepare detailed river trip logs describing geologic and hydraulic features that may be observed from Lees Ferry to Lake Mead, but also to compile a modern summary of Grand Canyon geology. To persons unfamiliar with details of the geology, it is commonly supposed that no major problems exist because of the superb and extensive exposures. One objective of this volume is to identify and place in perspective some of the salient problems that remain Geologic and hydraulic river trip logs (chapters 1 and 2) are designed to be used during a river trip through Marble Canyon and the Grand Canyon. These logs are followed by a review of hydraulic characteristics of the Colorado River (chapter 3). Physiographic, geologic, and structural settings, found in Chapters 4-7, serve as a general review for the geologist and non-geologist alike. Geologic characteristics of the Early Proterozoic crystalline basement, and of stratified and intrusive rocks of the Middle and Late Proterozoic Grand Canyon Supergroup, are summarized in Chapters 8-11. Of particular interest is an interpretation that the Late Proterozoic Chuar Group accumulated mainly in a lacustrine rather than a marine environment of deposition, and that carbonaceous strata of the Chuar Group may have served as a potential source of Precambrian oil. A preliminary, stratigraphically controlled, apparent polar wandering path developed from Proterozoic and Paleozoic rocks of the Grand Canyon and environs is shown in Chapter 12; the polar path and polarity zonation lead to correlations with poles reported from Proterozoic rocks elsewhere in North America, and the character of the polar path may reflect the nature of movement of the North American plate with respect to episodes of tectonism. Content: Chapter 1 Geologic Log of the Colorado River From Lees Ferry to Temple Bar, Lake Mead, Arizona (pages 1–36): George H. Billingsley and Donald P. Elston Chapter 2 Hydraulic Log of the Colorado River From Lees Ferry to Diamond Creek, Arizona (pages 37–47): Julia B. Graf, John C. Schmidt and Susan W. Kieffer Chapter 3 Hydraulics and Sediment Transport of the Colorado River (pages 48–66): Susan W. Kieffer, Julia B. Graf and John C. Schmidt Chapter 4 Physiographic Features of Northwestern Arizona (pages 67–71): George H. Billingsley and John D. Hendricks Chapter 5 Modern Tectonic Setting of the Grand Canyon Region, Arizona (pages 72–73): Peter W. Huntoon Chapter 6 Setting of the Precambrian Basement Complex, Grand Canyon, Arizona (pages 74–75): Peter W. Huntoon Chapter 7 Phanerozoic Tectonism, Grand Canyon, Arizona (pages 76–89): Peter W. Huntoon Chapter 8 Early Proterozoic Rocks of Grand Canyon, Arizona (pages 90–93): Charles W. Barnes Chapter 9 Middle and Late Proterozoic Grand Canyon Supergroup, Arizona (pages 94–105): Donald P. Elston Chapter 10 Petrology and Chemistry of Igneous Rocks Of Middle Proterozoic Unkar Group, Grand Canyon Supergroup, Northern Arizona (pages 106–116): John D. Hendricks Chapter 11 Potential Petroleum Source Rocks in the Late Proterozoic Chuar Group, Grand Canyon, Arizona (pages 117–118): Mitchell W. Reynolds, James G. Palacas and Donald P. Elston Chapter 12 Preliminary Polar Path From Proterozoic and Paleozoic Rocks of the Grand Canyon Region, Arizona (pages 119–121): Donald P. Elston Chapter 13 Paleozoic Strata of the Grand Canyon, Arizona (pages 122–127): Stanley S. Beus and George H. Billingsley Chapter 14 Cambrian Stratigraphic Nomenclature,Grand Canyon, Arizona ?Mappers Nightmare (pages 128–130): Peter W. Huntoon Chapter 15 Correlations and Facies Changes in Lower and Middle Cambrian Tonto Group, Grand Canyon, Arizona (pages 131–136): Donald P. Elston Chapter 16 Mesozoic Strata at Lees Ferry, Arizona (pages 137–138): George H. Billingsley Chapter 17 Fission?Track Dating: Ages for Cambrian Strata and Laramide and Post?Middle Eocene Cooling Events From the Grand Canyon, Arizona (pages 139–144): C. W. Naeser, I. R. Duddy, D. P. Elston, T. A. Dumitru and P. F. Green Chapter 18 Development of Cenozoic Landscape Of Central and Northern Arizona: Cutting Of Grand Canyon (pages 145–154): Donald P. Elston and Richard A. Young Chapter 19 Paleontology, Clast Ages, and Paleomagnetism of Upper Paleocene and Eocene Gravel and Limestone Deposits, Colorado Plateau and Transition Zone, Northern and Central Arizona (pages 155–165): Donald P. Elston, Richard A. Young, Edwin H. Mckee and Michael L. Dennis Chapter 20 Paleogene?Neogene Deposits of Western Grand Canyon, Arizona (pages 166–174): Richard A. Young Chapter 21 Pre?Pleistocene(?) Deposits of Aggradation, Lees Ferry to Western Grand Canyon, Arizona (pages 175–185): Donald P. Elston Chapter 22 Petrology and Geochemistry of Late Cenozoic Basalt Flows, Western Grand Canyon, Arizona (pages 186–189): J. Godfrey Fitton Chapter 23 Pleistocene Volcanic Rocks of the Western Grand Canyon, Arizona (pages 190–204): W. Kenneth Hamblin Chapter 24 Quaternary Terraces in Marble Canyon and Eastern Grand Canyon, Arizona (pages 205–211): Michael N. Machette and John N. Rosholt Chapter 25 Breccia Pipes and Associated Mineralization in the Grand Canyon Region, Northern Arizona (pages 212–218): Karen J. Wenrich and Peter W. Huntoon Chapter 26 Gravity Tectonics, Grand Canyon, Arizona (pages 219–223): Peter W. Huntoon Chapter 27 Mining Activity in the Grand Canyon Area, Arizona (pages 224–227): George H. Billingsley Chapter 28 Bat Cave Guano Mine, Western Grand Canyon, Arizona (page 228): Peter W. Huntoon Chapter 29 Small Meteorite Impact in the Western Grand Canyon, Arizona (page 228): Peter W. Huntoon