Geology Review Geology Review GameGame

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Your teams are Your teams are your table groupsyour table groups

2.) Which Layer of Rock is the OLDEST?

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2. B

3. C

4. D

5. E

6. F

7. G

3.) Which Layer of Rock is the YOUNGEST?

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2. B

3. C

4. D

5. E

6. F

7. G

4.) Which Layer of Rock is the third youngest?

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2. B

3. C

4. D

5. E

6. F

7. G

5.) Why are index fossils useful to geologists?

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0%1. They tell the absolute of the

rock.

2. They tell the ages of MANY rock layers in different locations

3. They tell how the fossil was formed.

4. They tell the EXACT age of the entire rock layer.

6.) Which is the correct sequence of events? (oldest first)

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0% 1. H, M, R

2. M, B, R

3. I, H, M

4. I, M, H

5. R, F, B

7.) What is meant by the relative age of a Strata?

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fossils.

2. The number of years since it formed.

3. Its age as determined by carbon dating.

4. Its age as determined by the radioisotopes it contains.

Rock “E” would be an example of what cross-cut?

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2. Fold

3. Intrusion

4. Extrusion

5. Unconformity

Determining whether an object is older or

younger than other objects is called what?

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2. Absolute dating

3. Radiometric dating

4. Gradualism

Which of the following is a crosscutting relationship?

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2. fault

3. extrusion

4. All of the above

Which law states this, as sedimentary rocks form, they are deposited on older rock layers.

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0% 1. Law of Superposition

2. Law of Horizontality

3. Uniformintarianism

4. Law of Cross-Cutting Relations

What is an extrusion?

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2. Layers of rocks bend or curve

3. When magma pushes through rock layers

4. When lava reaches the surface.

This law states that layers of sediment were originally deposited horizontally under the action of gravity.

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2. Superposition

3. Horizontality

4. Cross-Cutting Relations

Are intrusions, extrusion, faults, and folds younger or older than the rocks that they invade?

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2. Older

What must occur for an unconformity to form?

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2. Fold

3. Erosion

4. Igneous rock

Write a Geologic History for this picture. Name all the

cross-cutting relationships and any Unconformities.

Cross Cuts- C Intrusion, G is a Fault

Unconformities- Nonconformities between lines D and C, F and CDisconformities between lines D and H, H and A

Angular Unconformities between lines F and E, I and E, and B and Eunconformity at the top of E

• 1 Sedimentary layer of D was created.• 1 Sedimentary layer of H was created• 1 Sedimentary layer of A was created• Layers D, H, and A are compressed and bent to form folds.• An intrusion C cuts through layers D,H and A but not to the

surface.• A fault G cuts through layers D, H, A and the Intrusion C. • 1 Sedimentary Layer F was created• 1 Sedimentary layer I was created• 1 Sedimentary layer B was created• Layers F, I, B are uplifted and titled.• 1 Sedimentary layer of E was created.

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