Green Point
![]() ![]() |
<= Sedimentary rock that looks like soilidified, dried and cracked mud |
Bedrock formation These rocks formed in the deep water at the bottom of a continental shelf. Deep-sea sediments that form shales were deposited in the normal manner. Limestone, which forms from shallow marine deposits, doesnt seem like it should have formed in this type of environment, but it is clearly interbedded with the shale over short periods of deposition. The interbedding occured when limestone eroded from the top of the continental shelf and tumbled down the side into the deep water, grading as it fell. Then, more shale sediments were deposited on top of the limestone, starting the cycle over again. |