K

D

H

A

L

E

J

B

G

C

F

I -fault

Youngest

Oldest

Place the Earth materials and events in order of relative occurrence, then answer the following questions.

1. What type of unconformity occurs between “H” and “D”? ____________________________

2. Which principle would you apply to determine the age relationship between “B” and “G”? ____________________________

3. Which principle would you apply to determine the age relationship between “K” and “L”? ____________________________

4. Define the term “unconformity”. ______________________________________________________

________________________________________________________________________________

5. Which is older, an inclusion or the including rock? ____________________________

6. Which is older, a cutting event or the material being cut?____________________________

E

L

K

A

H

G

B

I

DC

F

J

Disconformity

Cross-Cutting Relationship

Stratigraphic Superposition

A surface that represents missing time.

The Inclusion

The material being cut

1000

2000

3000

4000

5000

A A’

Contour and topographic profile exercise.Use an interval of 1000 feet

6000

7000

7000

6000

5000

5000

5000

400030

00

2800

2900

31003800

3700

3800

3300

3600

3200

4800

4700

4600

47004500

4200

5200

4600

5100

5100

5100

5200

4200

4300 4500 4800

4900

4700

5100

5500

5700

5200

5800

4600

5400

5300

6200

6300

7200

6600

7100

7100

5600

6500

7200

1. Using the following data, build a range chart.

A - (Perm-Quat) D - (Dev-Tria) G - (Miss-Penn) J - (Ord-Dev)B - (Jur-Tert) E - (Sil-Tria) H - (Camb-Miss) K - (Ord-Sil)C - (Tria-Cret) F - (Miss-Perm) I - (Sil-Miss) L - (Camb-Ord)

A B C D E F G H I J K LQuaternary X

Tertiary XCretaceous X

Jurassic OTriassic O X XPermian O X

Pennsylvanian XMississippian O O X X

Devonian O XSilurian O O X

Ordovician O O XCambrian O O

2. List the fossils asemblages and unique groups for each period.

A E C B

Triasic C D C B A C

A F E A E

D G F D C C

D K I J E I

G I D J

H I J J K I H K

H I K J

Silurian E L K

K H K

J L

----

3. Use this information to correlate any period that you are positive occurs in all four of these colunms. Draw lines between columns to show this correlation and label the age of

Permian AF CambrianJL, KL

JurassicTriassic CD, CE Ordovician

---- Silurian

FH, FI, GH, GI

DJ

EK, IK

Cretaceous ---- DevonianTertiary ---- Mississippian

Period Assemblage Unique GrpQuaternary ---- Pennsylvanian ----

Per

iod

s

Period Assemblage Unique Grp