Relative Dating

Question 1

in an undisturbed rock strata, the oldest is found at the bottom and youngest at the top

Answer 1

Law of Superposition

Question 2

where are the oldest rocks found

Answer 2

At the bottom

Question 3

Where are the youngest rocks found

Answer 3

At the top

Question 4

Explain the Law of Superposition

Answer 4

Undisturbed strata, old rock at the bottom and younges rocks at the top

Question 5

Rock layers are formed/deposited…

Answer 5

Horizontally

Question 6

Explain the Law of Original Horizontality

Answer 6

Rock strata that is tilted, means something happened in them

Question 7

Disturbed rocks were found. They are in an unusual shape

Answer 7

Law of Original Horizontality

Question 8

Explain the Principle of Lateral Continuity

Answer 8

Rocks extending laterally on both sides causing it to thin out and separate

Question 9

In the Grand Canyon, two sets of rocks were found. It was observed that their sides connect to one another. What could be the type of relative dating is this

Answer 9

Principle of Lateral Continuity

Question 10

Intrusions passing through a rock is older than the rock being passed through. True or False?

Answer 10

False

Question 11

in the Grand Canyon, Chan found a rock that seemed to have something that passed through it. What type of Relative Dating is this?

Answer 11

Principle of Cross Cutting

Question 12

Explain the Principle of Cross Cutting.

Answer 12

Igneous intrusions cutting through a rock is YOUNGER than the rock itself

Question 13

Hyunjin the geologist has found a rock strata. He saw a seashell in the middle of the layers. Is the seashell older or younger than the rock under it?

Answer 13

Older

Question 14

The rock over the seashell that Hyunjin found is older or younger?

Answer 14

Younger

Question 15

Inclusions are _ than the rock that is covering them

Answer 15

Older

Question 16

Ryujin decided to break a big strata and found a smaller rock inside of it. What principle is this?

Answer 16

Principle of Inclusion

Question 17

Erosion in strata

Answer 17

Unconformity

Question 18

Minji noticed that in the middle of the layers in the Grand Canyon, there is a weird curve between them. What could this be?

Answer 18

Erosion/Disconformity

Question 19

Felix noticed a streak of line between the rocks he’s currently observing. He concluded that the line must be an intrusion. What kind of unconformity and relative dating is this?

Answer 19

Non-conformity/Principle of Cross Cutting

Question 20

Max saw a rock strata that seems to be bent underneath. There are weird curves over that bent area. Curiosity kicking in, she asked dustin about it. What should be dustin’s answer on what happened there?

Answer 20

It is an Angular Unconformity. Rocks at the bottom are disturbed, being tilted. However, it wouldn’t be an unconformity if there’s no erosion.

Question 21

An extinct organism that only lived for a short time and used to be a guide for dating rocks

Answer 21

Index Fossil