Dr. Ron Blakey, Professor Emeritus NAU Geology

UPDATE!! Revised maps!! Additional maps!!

Additional maps not on this website as well as map revisions and updates are available at

  • Colorado Plateau Geosystems Website


    The goals of this home page are to provide the following:

    1. An introduction to my work: Geology of the Colorado Plateau and Global and Regional Paleogeography

    2. An overview of the sedimentary geology on the Colorado Plateau

    3. A general list of references, including NAU MS theses, to the Colorado Plateau

    4. Up-to-date data on sedimentary rocks of the Colorado Plateau

    5. Views of the ancient Earth: Plate tectonic and continental drift reconstructions of the Late Precambrian and Phanerozoic including detailed paleogeography of Southwestern North America. Please Note: The maps on this site will no longer be revised nor will new maps be added; my available web space on the NAU server is nearly used up so I have initiated a new website at

  • Colorado Plateau Geosystems Website

    The new website will become the location where I post new and revised maps. The present NAU site will continue to have its existing library of maps as many instructors and students have bookmarked the site and many maps have been formally cited in the geologic literature. I encourage new citations and links to use the new site

  • Colorado Plateau Geosystems Website

    6. Links to other geology sites on the WWW

    Information on my new book, ANCIENT LANDSCAPES OF THE COLORADO PLATEAU by Ron Blakey and Wayne Ranney. Click here for information about this book: merchant

  • Sedimentary Rocks on the Colorado Plateau

    The Colorado Plateau is one of the World's great show places for sedimentary rocks. Precambrian and all Phanerozoic periods except Ordovician and Silurian are represented. Especially well exposed are Permian through Jurassic sedimentary rocks that were deposited in mostly tropical desert sedimentary environments. These sedimentary rocks provide the focal point for the greatest concentration of National Parks in the World. The Grand Staircase, the southwestern escarpment of the Colorado Plateau, exposes one of the finest and most complete sedimentary sections anywhere!

    Studies on the Plateau involve numerous NAU Geology faculty and their students. Hundreds of publications and dozens of MS theses have resulted from these studies.

    A list, by stratigraphic age, of NAU MS Theses that deal with Sedimentary Geology


    The navigation of this site is divided into six parts, seen readily at the top and bottom of this page; a brief summary of each part follows:

  • Home -- the present page
  • Global Paleogeography -- Paleogeographc maps that cover the entire Earth in Rectangular, Mollweide (oval), and Orthographic (spherical) projections
  • Regional Paleogeography -- Paleogeographic maps that focus on various regions of Earth
  • Colorado Plateau -- Geology of the Colorado Plateau including strat columns, facies and isopach maps, and other goodies
  • Geology Illustrated -- mostly photos and cross sections -- features nice coastal photos
  • Publications -- My list of publications, how to get some PDF's, and other miscellaneous stuff.

    This page was last updated March, 2011, by:

    Ron Blakey (email Ron Blakey)
    Department of Geology (NAU Geology Web Page ), Box 4099
    Northern Arizona University
    Flagstaff, AZ 86011