RELATIVE DATING

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What is relative dating?

Back

Relative dating is a method used to determine the age of rocks and fossils in relation to one another, without determining their exact age.

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How do sedimentary rocks usually form?

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Sedimentary rocks usually form horizontally.

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What is the principle of superposition?

Back

The principle of superposition states that in undisturbed layers of rock, the oldest layers are at the bottom and the youngest are at the top.

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What is an intrusion in geology?

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An intrusion is a body of igneous rock that has formed from magma that has cooled and solidified beneath the Earth's surface.

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What is a fault?

Back

A fault is a fracture or zone of fractures between two blocks of rock, which can cause earthquakes.

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What does it mean if a layer is older than another layer?

Back

If a layer is older than another layer, it means it was deposited first and has been buried by younger layers.

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What is folding in geology?

Back

Folding is the bending of rock layers due to tectonic forces, which can create mountains and valleys.

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What is absolute dating?

Back

Absolute dating is a method used to determine the actual age of a rock or fossil, often using radioactive elements.

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What is the significance of fossils in relative dating?

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Fossils help in relative dating by providing clues about the age of the rock layers in which they are found.

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What is the difference between relative dating and absolute dating?

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Relative dating determines the order of events without exact dates, while absolute dating provides a specific age.