Sedimentary rocks Flashcards
1
Q
Erosion
A
Water wind ice and gravity move rocks along breaking them up
2
Q
Deposition
A
The sediments reach the sea and settle on the sea bed
3
Q
Comapction
A
Over time layers of sediments build up and the top layers squash the bottom layers
4
Q
Cementation
A
Compaction forces water and air out of the spaces between sediments in the lower
layers. This causes minerals in the sediments to harden, and the sediments become stuck together