From this cross section of the Grand Canyon,what occurred between the formation of the Precambrian metamorphic rocks and the deposition of the lowest Paleozoic rocks?
A)Uplift
B)Erosion
C)Deposition and tilting of the Precambrian sedimentary and igneous rocks
D)Uplift and erosion
E)All of these are correct.

Question

From this cross section of the Grand Canyon,what occurred between the formation of the Precambrian metamorphic rocks and the deposition of the lowest Paleozoic rocks? 
A)Uplift 
B)Erosion 
C)Deposition and tilting of the Precambrian sedimentary and igneous rocks 
D)Uplift and erosion 
E)All of these are correct.

Quizplus · Accepted Answer

The cross section shows a significant gap between the Precambrian metamorphic rocks and the overlying Paleozoic sedimentary rocks. This gap suggests that there was a period of uplift and erosion between the two events.

From This Cross Section of the Grand Canyon,what Occurred Between