Page 254 - Laboratory Manual in Physical Geology

B. This is another photograph of part of the bottom of the Grand Canyon. You are standing east of Grand Canyon Villiage, on

the south rim of the Canyon, and looking at the north side of the canyon. All of the rocks in this scene are sedimentary rocks.

1. Analyze this canyon scene. Then, using a pen, draw a line on the photograph to show the exact position of an
unconformity.
West Looking North East

2. What kind of unconformity did you identify?

C. REFLECT & DISCUSS What evidence did you apply to justify drawing an unconformity where you did on the above

photograph?

226