The upper rocks in the Muav Limestone are about 505 million years old. The lower rocks in the Redwall Limestone are about 340 million years old. Which could explain this gap?
Geologic History Unit Assessment, Part 2
Either no deposition occurred or it was removed by erosion.

A.
The trilobites became extinct after the Bright Angel Shale period.

B.
The rock layers were subducted beneath the crust during that gap in time.

C.
The earth's climate conditions prevented the formation of new limestones during that gap of time.

D.

Question

The upper rocks in the Muav Limestone are about 505 million years old. The lower rocks in the Redwall Limestone are about 340 million years old. Which could explain this gap?
  Geologic History Unit Assessment, Part 2   
Either no deposition occurred or it was removed by erosion.
 
 A.
The trilobites became extinct after the Bright Angel Shale period.
 
 B.
The rock layers were subducted beneath the crust during that gap in time.
 
 C.
The earth's climate conditions prevented the formation of new limestones during that gap of time.
 
 D.

anonymous · Answer

The earth's climate conditions prevented the formation of new limestones during that gap of time.
 
 D.

anonymous · Answer

https://static.k12.com/calms_media/media/1020500_1021000/1020876/4/9b58164be16dd3cb0ddee47f2bc03a737a6cb53a/MS2_ERT_03_09_UAS.jpg

anonymous · Answer

@CandyCove

anonymous · Answer

the answer are actually above the choices so yeah!

anonymous · Answer

the answer is A Either no deposition occurred or it was removed by erosion.