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

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

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

C.
Either no deposition occurred or it was removed by erosion.

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   
The rock layers were subducted beneath the crust during that gap in time.
 
 A.
The trilobites became extinct after the Bright Angel Shale period.
 
 B.
The earth's climate conditions prevented the formation of new limestones during that gap of time.
 
 C.
Either no deposition occurred or it was removed by erosion.
 
 D.

anonymous · Answer

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

adelyn_helps · Answer

hang on 1 sec...

adelyn_helps · Answer

Its B...only one that makes sense