I. Consider the relative dating principles discussed in this course. The next two questions refer to this cross-section of the Grand Canyon. Kaibab Limestone Toroweap Formation Coconino Sandstone Hermit Shale Supai Group Surprise Canyon Formation Redwall Limestone Temple Butte Formation Muav Limestone Bright Angel Shale Tapeats Sandstone Unkar Group Vishnu Schist Zoroaster Granite Locate the contact between the Tapeats Sandstone and the Unkar Group. Describe what which layer is older, the Tapeats Sandstone or the Unkar Group? 2 Do you think the Tapeats Sandstone and Unkar Group layers formed continually or was there a gap in time between formation? Explain your