From this cross section of the Grand Canyon,the oldest rocks or structures are the
A)Late Cenozoic basalts.
B)Mesozoic sedimentary rocks.
C)Precambrian sedimentary and igneous rocks.
D)Precambrian metamorphic rocks and granite.
E)Hurricane fault and faults along the Grand Wash Cliffs.

Question

From this cross section of the Grand Canyon,the oldest rocks or structures are the 
A)Late Cenozoic basalts. 
B)Mesozoic sedimentary rocks. 
C)Precambrian sedimentary and igneous rocks. 
D)Precambrian metamorphic rocks and granite. 
E)Hurricane fault and faults along the Grand Wash Cliffs.

Quizplus · Accepted Answer

The oldest rocks or structures in the Grand Canyon cross section are Precambrian metamorphic rocks and granite.

From This Cross Section of the Grand Canyon,the Oldest Rocks