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WorksheetsRelative Dating Quiz Review
Total questions: 8
Worksheet time: 8mins
The diagram above shows a cross section of a hillside. Four rock units are shown in the cross section. Which of these units is the oldest?
Sandstone
Shale
Limestone
Igneous
The diagram below shows a stack of rock layers. Examine the diagram, and answer the question that follows.
Layer T contains a well-known index fossil that is 120 million years old. Layer R contains a different index fossil that is 100 million years old. Based on this information and the principle of superposition, how old is Layer M?
younger than 100 million years
either 20 million or 220 million years old
between 100 million and 120 million years old
older than 120 million years
Which of the following is an unconformity?
Any rock formation or fault is younger than the rock it cuts through
Looks like a layer is missing in a rock formation
Age of a fossil, rock, or rock layer compared to another
History repeats itself. What is happening now, happened in the past, and will happen in the future.
Which of the following is the law of superposition?
Principle that states that older rock layers/fossils are below younger rock layers
History repeats itself. What is happening now, happened in the past, and will happen in the future.
Any rock formation or fault is younger than the rock it cuts through
Age of a fossil, rock, or rock layer compared to another
What geologic principle(or law) is best displayed here?
The Law of Superposition
Extrusion
Intrusion
Look at the diagram. In which layer did animal E first appear?
Layer #4
Layer #5
Layer #6
Layer #8
Which of the following is relative dating?
Any rock formation or fault is younger than the rock it cuts through
Looks like a layer is missing in a rock formation
Age of a fossil, rock, or rock layer compared to another
Principle that states that older rock layers/fossils are below younger rock layers
Which two fossils would make good index fossils?
Ammonite
Gastropod
Fern
Trilobite
