Concerning the relative ages of the granite and sandstone,________.

A)the granite must be older,according to the principle of superposition
B)the sandstone must be older,according to the principle of superposition
C)the granite must be older,according to the principle of components
D)their relative ages cannot be determined from the information given

Question

Concerning the relative ages of the granite and sandstone,________.

A)the granite must be older,according to the principle of superposition 
B)the sandstone must be older,according to the principle of superposition 
C)the granite must be older,according to the principle of components 
D)their relative ages cannot be determined from the information given

Quizplus · Accepted Answer

The principle of superposition only applies to sedimentary rock layers, where the oldest layer is at the bottom and the youngest is at the top. Granite is an igneous rock and sandstone is a sedimentary rock, so we cannot use the principle of superposition to determine their relative ages. The principle of components also does not apply in this case. Therefore, we cannot determine the relative ages of the granite and sandstone from the information given.

Concerning the Relative Ages of the Granite and Sandstone,________