Use the principles of original horizontality, superposition,cross-cutting relationships, a...

Use the principles of original horizontality, superposition,

cross-cutting relationships, and inclusions to determine

the order of events for the idealized location shown in the

following diagram.

a) Place the rock units in their order of formation, from oldest to youngest.

Youngest

1. _____

2. _____

3. _____

4. _____

5. _____

6. _____

7. _____

8. _____

9. _____

10. _____

Oldest

b) Examine the rock types identified by the symbols in the diagram, and determine which rock units best match the following descriptions.

  Letter  Characteristic

_____ Interbedded layers of rocks that indicate alternating shallow marine environments and coastal swamps in tropical conditions

_____ Coarse-grained clastic sedimentary rocks overlying an erosional surface (unconformity surface)

_____ Granite

_____ A rock containing a foliation

_____ The most recently deposited sedimentary rock

_____ Sedimentary bed that has undergone contact metamorphism on its uppermost surface

_____ Basalt