Relative Age Dating of Rocks Cornell Doodle Notes Presentation

Multiple Choice

Which of the following best describes how sedimentary rock forms?

• From sediments that have been compacted and cemented together

• From cooling magma

• From volcanic eruptions

• From melting and solidifying minerals

Fill in the Blank

Fill in the blank: In geology, 'strata' refers to rock ___.

Open Ended

What is stratigraphy?

Multiple Choice

Which statement best describes relative age in geology?

• Relative age is the exact age of a rock in years.

• Relative age is the age of rocks and geologic features compared with other rocks and features nearby.

• Relative age is the age of a rock compared to fossils found within it.

• Relative age is the age of rocks based on their color.

Multiple Choice

Based on the images of the laundry pile, which items would be considered the 'youngest' and which would be considered the 'oldest'?

• The clothes at the top are youngest, and the clothes at the bottom are oldest.

• The clothes at the bottom are youngest, and the clothes at the top are oldest.

• All clothes are the same age.

• The clothes in the middle are the youngest.

Multiple Choice

According to the law of superposition, which layer is the youngest?

• A

• B

• C

• D

Multiple Choice

According to the law of superposition, which layer is the oldest?

• A

• B

• C

• D

Labelling

Label the rock layers by age

Drag labels to their correct position on the image

Oldest Layer

Youngest Layer

Multiple Choice

According to the law of superposition, put the layers in order from oldest to youngest

• A,B,C

• B,C,A

• C,B,A

• C,A,B

Multiple Choice

_{Which rock layer in the diagram seems to be the oldest?}

• F
• E
• B
• A

Multiple Select

Which of the following are principles that govern relative age dating in geology?

• Superposition

• Original horizontality

• Cross-cutting relationships

• Absolute dating

Multiple Choice

Which geologic principle states that in undisturbed rock layers, each layer is younger than the one below it?

• Original Horizontality

• Lateral Continuity

• Superposition

• Cross-Cutting Relationships

Fill in the Blank

If sedimentary rock layers are not horizontal, what does this indicate according to the principle of original horizontality?

Multiple Choice

Which of the following statements best describes the principle of original horizontality?

• Rock layers are always deposited vertically.

• Rock layers are deposited in horizontal layers due to gravity.

• Rock layers are deposited in random orientations.

• Rock layers are always older than the layers above them.

Multiple Select

Select all principles that help geologists interpret the formation and history of sedimentary rock layers.

• Superposition

• Original Horizontality

• Lateral Continuity

• Uniformitarianism

Multiple Choice

Which principle of stratigraphy states that a feature like a fault line or igneous rock intrusion that cuts across a horizontal layer is younger than the layer that it cuts through?

• Principle of Superposition

• Principle of Original Horizontality

• Principle of Cross-Cutting Relationships

• Principle of Inclusions

Multiple Choice

Based on the diagram, which layer is the youngest and which is the oldest according to the principle of cross-cutting relationships?

• The top layer is the youngest, and the bottom layer is the oldest.

• The layer cut by the intrusion is the youngest, and the layer below it is the oldest.

• The intrusion is the youngest, and the bottom layer is the oldest.

• The middle layer is the youngest, and the top layer is the oldest.

Open Ended

Explain how the principle of inclusions helps geologists determine the relative ages of rocks.

Multiple Choice

Which of the following statements correctly describes the principle of inclusions?

• A rock containing fragments of another rock is older than the fragments.

• Fragments included in a rock must be younger than the rock itself.

• A rock containing fragments of another rock is younger than the fragments.

• Fragments included in a rock must be the same age as the rock.

Multiple Select

Which principles of stratigraphy are illustrated in the cross-section diagram? Select all that apply.

• Superposition

• Cross-Cutting Relationships

• Inclusions

• Lateral Continuity

Multiple Choice

Which principle of stratigraphy states that the oldest layers are at the bottom and the youngest are at the top?

• Superposition

• Cross-cutting Relationships

• Lateral Continuity

• Original Horizontality

Multiple Select

Which of the following are characteristics of a good index fossil?

• Easily identifiable

• Widespread

• Abundant

• Lived for a long period

Multiple Choice

What is the main purpose of using the principle of correlation in geology?

• To determine the absolute age of rocks

• To match rock layers of similar age in different locations

• To identify the chemical composition of rocks

• To study fossil evolution

Open Ended

Explain how index fossils are used to determine the relative ages of rock layers at different geographic locations.

Drag and Drop

Which fossil is the oldest? Use the information in the picture.

Placeholder

Drag these tiles and drop them in the correct blank above

Fish

Reptile

Bird

Dinosaur

Whale

Drag and Drop

Which creature was the first to go extinct? Use the information in the picture.

Placeholder

Drag these tiles and drop them in the correct blank above

Fish

Reptile

Bird

Dinosaur

Whale

Dropdown

Which fossil is the youngest? Use the information in the picture.

Select answer

Multiple Choice

Look at the diagram, what layer did animal E first show up in?         

• Layers #4
• Layers #5
• Layers #6
• Layers #7

Fill in the Blank

Trilobites are considered good index fossils because they are ___ and easily identifiable.