Relative Dating Worksheets 1 NAME:______HR: ___

**Look at the diagram below. Put the layers in order from first (oldest) to last (youngest).Also include any events. such as when erosion, intrusions, faults, &/or folding happened.

ON TOP OF THAT,

**List the law/principle that explains the order of occurrence/how you know it is that old

(i.e.—Law of Superposition, Cross-Cutting Relations, orHorizontality)

**Label where the ANTICLINEand the SYNCLINE are, as well.

Erosion

Folding

Event or

Layer Law (Superposition, Horizontality, Cross-Cutting Relations)

14.______(youngest)

13.______

12.______

11.______

10.______

9. ______

8. ______

7. ______

6. ______

5. ______

4. ______

3. ______

2. ______

1. ______(oldest)

**Look at the diagram below. Put the layers in order from first (oldest) to last (youngest).Also include any events. such as when erosion, intrusions, faults, &/or folding happened.

ON TOP OF THAT,

**List the law/principle that explains the order of occurrence/how you know it is that old

(i.e.—Law of Superposition, Cross-Cutting Relations, orHorizontality)

Still layer E

Note: The various sedimentary layers above are labeled as B, E, K and W. The timing of the fault (break) in the rocks ( labeled Q ) must be included in the sequence of events.

Event or

LayerLaw (Superposition, Horizontality, Cross-Cutting Relations)

5. ______

4. ______

3. ______

2. ______

1. ______(oldest)

Rule of Thumb:

If you are considering where to put a layer into the sequence = Law of Superposition

When you are considering where an event belongs in the mix, then,

-if it has to do with the actions offolding, tilting, or erosion = Law of Horizontality

-if it has to do with the action of faulting or intrusions = Law of Cross-Cutting Relations

**Look at the diagram below. Put the layers in order from first (oldest) to last (youngest).Also include any events. such as when erosion, intrusions, faults, &/or folding happened.

ON TOP OF THAT,

**List the law/principle that explains the order of occurrence/how you know it is that old (i.e.—Law of Superposition, Cross-Cutting Relations, orHorizontality )

Note: The two intrusions above are labeled as X and Z; the surrounding rock is labeled D.

Event or

Layer Law (Superposition, Horizontality, Cross-Cutting Relations)

5. ______

4. ______

3. ______

2. ______

1. ______(oldest)