This cross section of Grand Canyon is part of Brian Gootee's 'Geologic Timeline of the Grand Canyon'. The timeline addresses paleogeography, tectonism, magmatism and life forms that impacted the geologic setting of what is now referred to as Grand Canyon.
Online resources:
Gootee, B.F., 2019, Geologic Timeframe of the Grand Canyon. Arizona Geological Survey Open-File Report OFR-18-02, with Supplemental resource document for Geologic Timeline of the Grand Canyon 2 p.http://repository.azgs.az.gov/uri_gin/azgs/dlio/1906
