Relative Dating

Question 1

Which statement about how geologists study the ages of rock layers is true?

Revolt · Accepted Answer

C: The principle of original horizontality provides the basis for the law of superposition.

Question 2

Geologists use tools other than the law of superposition to help them with relative dating. Which statements describe those tools? Check all that apply.An unconformity is created when lava pours out on Earth’s surface.Faults are the result of volcanic activity.Intrusions and extrusions are sedimentary formations.Cross-cutting features are always younger than the surrounding rock.When material erodes before sediment is deposited on it, a geologic gap results.

Revolt · Accepted Answer

D: Cross-cutting features are always younger than the surrounding rock.; E: When material erodes before sediment is deposited on it, a geologic gap results.

Question 3

Which statements about this diagram are true? Check all that apply.

Revolt · Accepted Answer

B: Faulting created the differences in layers.; D: Layers 2 and 9 are the same age.

Question 4

Use the law of superposition to choose the correct answer for the following questions about rock layers and relative age.

Revolt · Accepted Answer

C: ✔ Layer 8

Question 5

Layers 3 and 5 ✔ Layers 2 and 3Layers 5 and 6

Revolt · Accepted Answer

B: ✔ Layers 2 and 3

Question 6

Layers 1 and 2 ✔ Layers 7 and 9Layers 4 and 6

Revolt · Accepted Answer

B: ✔ Layers 7 and 9

Question 7

Use the drop-down menus to answer the questions about the diagram.

Revolt · Accepted Answer

A: ✔ intrusion

Question 8

Letter ELetter F✔ Letter G

Revolt · Accepted Answer

C: ✔ Letter G

Question 9

Letter A✔ Letter FLetter I

Revolt · Accepted Answer

B: ✔ Letter F

Question 10

Letter I was deposited. Letter G occurred. ✔ Letter F was deposited.

Revolt · Accepted Answer

C: ✔ Letter F was deposited.

Relative Dating Answers

More from this Course

TRY EDGENUITY HACKS