Laws of Stratigraphy
1. Superposition:
Oldest layer is on the bottom, youngest on top.
2. Cross-Cutting:
Features cutting across rocks are younger than the rocks they cut.
3. Horizontality:
Rock layers are deposited flat before being folded.
Practice Scenarios
Determine the order of geological events from OLDEST to YOUNGEST.
Available Features
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Your Order (Oldest → Youngest)
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Clear Order