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REFLECT & DISCUSS Return to geologic Cross Section 2, and notice how the Colorad

ID: 106921 • Letter: R

Question

REFLECT & DISCUSS Return to geologic Cross Section 2, and notice how the Colorado River has cut down through the rocks to create the Grand Canyon Gorge. Discuss with a partner or small group, what law of relative age dating you would to apply in order to draw in the rock layers of Grand Canyon Gorge that are missing from the cross section. As exactly as you can, apply law and use dashed lines to draw in the contacts between named rock layers that were eroded away in Grand Canyon Gorge. Compare your completed drawing with those of other geologists.

Explanation / Answer

The Order from Oldest to the youngest for Geologic section 3

F>K>G>P>C>B>R>M>O>H>A>X>E>D>N>Z>J

The Order from Oldest to the Youngest for Geologic section 4

A>E>V>C>P>S>O>K>X>U>B>Z>W>J>G>XX>L>F>T>Q>Y>H>N>b>R