This is the order of the levels:
- Shallowest
- Second youngest sediment layer
- Higher carbon-14 to carbon-12 ratio
- Second oldest sediment layer
- Lower carbon-14 to carbon-12 ratio
- Deepest
What are the levels?
Based on the principle of stratigraphic superposition, deduce that the shallowest layer is the newest and the deepest layer is the oldest.
The carbon-14 to carbon-12 ratio can also be used to determine the age of a sediment layer. The lower the ratio, the older the layer is.
Therefore, the order of the layers is as follows:
Shallowest
Second youngest sediment layer
Highest carbon-14 to carbon-12 ratio
Second oldest sediment layer
Lowest carbon-14 to carbon-12 ratio
Deepest